TCCD DDR600+ DFI nF4 Ultra/SLI guide

[kakaroto]

This guide will be updated as long as there is question to it

Introduction

Why the need for such a guide? On several web logs there are a lot of people who upgraded their S754 platform to the new S939 with PCI Express.
This is because the FX processor is not the only CPU anymore with the S939 socket. Most of these people want high HTT speeds to overclock their processor and memory so they buy Samsung TCCD or low latency memory like Winbond BH5/UTT.

Recently G.Skill PC4400/4800 became the hottest memory on the market together with OCZ PC4800 based on Samsung TCCD. This memory requires a high HTT speed, so the system must be overclocked.

A big problem that occurs when trying to reach high HTT speed is the memory that doesn’t want to run that speed although it is rated at speeds 275 or 300MHz. This results in many errors showing up in Memtest86+ and sudden BSOD in Windows. Some people might think this is caused by faulty memory, but nothing could be more untrue.

There is another culprit here, the processor on-die memory controller. The overclocking potential of every memory controller is different, there is no doubt that there are bad and good ones. In the low- and midrange processors from AMD the quality of the controller is not always consistent, this is a problem for most of the users. This is not so much an issue if you plan to buy a high end FX processor.

The cores available of the Athlon 64 / X2 series at this moment are:

- Clawhammer 130nm
- Winchester 90nm
- Newcastle 130nm
- San-diego 90nm
- Venice 90nm
- Italy 90nm
- Paris 90nm
- Manchester 90nm (Dual core)
- Toledo 90nm (Dual core)

AMD has launched two new cores named “Venice and San Diego� (revision E3 and E4). These cores have an upgraded instruction set (SSE3) and a better memory controller which is capable of addressing four memory modules in Dual Channel. (Please read the extra section SANDIEGO tweaks)

Unfortunately the only way to find out if your CPU's memory controller is by testing it, the core revision or stepping does not tell you enough. All I can is recommend is; buy the most recent processor. This will increase the chance that you have a new memory controller.

The chance that you will have a “bad� memory controller on the Winchester core is 6 of 10. When you have a good controller, this does not mean you will reach those speeds 100% around DDR500~600. The RAM must be tuned, that’s why I've created this guide.

In this guide I will help you to get your TCCD memory running stable at your stock rating and above.

I have used the following modules for testing:

- G.Skill PC4400 1GB LE (Samsung TCCD 431) (2x512MB)
http://img467.imageshack.us/img467/5436/GSKILL20512LA.th.jpg (http://img467.imageshack.us/my.php?image=GSKILL20512LA.jpg)

- G.Skill PC4800 1GB FR (Samsung TCCD 440) (2x512MB)
http://img467.imageshack.us/img467/9720/GS_PC4800_FR20007.th.jpg (http://img467.imageshack.us/my.php?image=GS_PC4800_FR20007.jpg)

- G.Skill PC4800 512 LA (Samsung TCCD 440) (2x256MB)
http://img467.imageshack.us/img467/8707/GSKILL201GBLE.th.jpg (http://img467.imageshack.us/my.php?image=GSKILL201GBLE.jpg)


If you use other TCCD based memory products like OCZ, PQI, Kingston, Corsair etc. you also can use this guide, but some results may vary from what i saw with this gskill memory.


The Goals:

best timings=performence for

2x 512MB at:

275MHz (DDR550) (CL2.5-3-3-6 1T)
300MHz (DDR600) (CL2.5-3-3-6 1T)
310Mhz (DDR620) (CL2.5-4-4-8 1T)

2x 256MB at:

320MHz (DDR640) (CL2.5-4-3-6 1T)

Clear I think :)

Users with a DFI nF4 Ultra/SLI motherboard would have known that this board has a very detailed memory setting menu in the BIOS. These settings are same on the DFI nF3 UT 250Gb board. If you don’t know what all those settings mean, I recommend you to read this guide first

All those settings are important to tune the memory to be able to run at DDR600 and beyond. For users who do not own a DFI nF4, they can use A64tweaker 0.5 for windows, this program allows you to change advanced memory timing related settings straight from within Windows.

The Method

To test stability, I will use a well-known program called Memtest86+. This program is implemented in the BIOS on the DFI nF4. You can download the new bios from the DFI website. When you use another board then DFI, use google to find memtest86++.

The steps below are the steps I use to find the sweetest point of the memory.

1. Test which module combination works best on your motherboard. Sometimes two modules works better if you switched them from place. Why? I don't know, but somehow modules can react different. For TCCD always use the orange banks. (2 and 4), for Winbond "voltages-freaks" use the yellow banks.

2. At what speed will TCCD show her true speed? Yes DDR600+, this is somekind of must for this memory due the looser timings (2.5-3(4)-3(4)-7(8) Test the memory on e.g. DDR600 with minimum voltage. (2.6~2.7v). If you get let say 20 to 50 errors in Memtest86+ test 5,8 you can tune the memory from there. If you get plenty of errors you have to increase the voltage or lower the clock speeds.

Use test 5 for testing the memory. This procedure will stress the memory with one patern. This test is the fastest but less error detection.

Use test 8 for more memory testing. This procedure uses a different patern then test 5 and has a better error detection, but takes longer.

You can run all the test by running the STD procedure, then the program will run all the test. The best and complete procedure in my opionion.

3. If you are done with tuning on a specific speed, try to clock further with more VDDR or signal strength (Drive/Data strength).
Or if you think it is enough you can tune that specific speed. (read the article how you can do this)

4. When you are done with testing in memtest86++, you can try booting into windows and bench from there. NOTE Memtest86++ stable does not always mean Windows stable. There are some users having this problem like unstable windows (BSOD's) while memtest86++ is just fine.

When you get this problem, you can add some vDDR trough your memory and/or increasing the drive and data strength.

In this article you have seen me writing about stable speeds. My criteria of stable are a minimum pass of 5 times in Memtest86+ test 8 without errors.
Most of the users use test 5 for stability test but I recommend test 8.

Piece of cake you might think, but this won’t be easy especially when you are trying to get high speeds stable with 1GB ram.

For guaranteed "Windows" stability always test with Prime95 (long period stressing, Memtest 3.2, RightMark Memory test) or houres of gaming. Just Memtest86++ is just not enough!

Bios Version

As you might know, DFI is a motherboard manufacturer that often releases new BIOS updates which is very great. I recommend using the latest beta bioses for the best support and performance for TCCD.

Which TCCD is the best?

A difficult question to answer is; what revision if TCCD is the best? At this moment there are five revisions: 425, 431, 437, 440, 449, 504, 507, 519 and 525. According to some users experience, newer TCCD are performing better at a higher voltage.

Test Setup

I used a competitively priced A64 Winchester CPU in test setup, rather then an overly expensive A64 FX-?? one.

- Athlon 64 3000+ (CBBHD 0448 RPMW)
- DFI nF4 Ultra-D rev. A02
- G.skill PC4400 & 4800 LE/LA
- Tagan 480Watt-U22

I had quite a bit of luck with the on-die memory controller of the A64 3000+ as it turned it runs at DDR600 speeds flawlessly.

Cooling: I can’t stress this enough; use an 80mm fan or bigger to cool down your memory as it has a very large impact on the result. At lower speeds and voltage the TCCD chips hardly get hot, but when pushing the envelope they start cooking and this will deter the overclocking potential.

2x 512MB DDR550 2.5-3-3-6 1T Dual Channel

http://img467.imageshack.us/img467/5525/275MHZ_DC_GSKILL_1GBLE.th.jpg (http://img467.imageshack.us/my.php?image=275MHZ_DC_GSKILL_1GBLE.jpg)

http://img467.imageshack.us/img467/1817/275MHZ_DC_GSKILL_1GBLE_sandra.th.jpg (http://img467.imageshack.us/my.php?image=275MHZ_DC_GSKILL_1GBLE_sandra.jpg)

BIOS Settings

Vddr: 2.7v
Tcl: 2.5
Trcd: 3
Tras: 6
Trp: 3
Trc: 9
Trfc: 12
Trrd: 2
Twr: 2
Twrt: 2
Trwt: 2
Tref: 3072 (200MHz 3.9us)
Twcl: 1

Bank int.: Enable
Skew control: 255 +
Drive strength: 7
Data strength: 4
Max. Async: 7ns
Read Preamble: 5ns
Idle Cycle: AUTO
Dyn. Counter: Enable
R/W Bypass: 16x
Bypass Max: 7x
32Bit Gran.: Disable

With these settings I got high performance and stability. The Tref (Refresh interval) can set to 4078 (166MHz 1.95us) for better performance.

If the settings mentioned above prove not to be stable, you can change the following:

- Max. Async. to 8ns
- Lower the refresh interval (Tref)
- Trrd to 3
- Idle Cycle at 128/256

These settings will increase stability and keep the performance at a descent level. If those settings are still unstable, there is something wrong with your memory or memory controller. You make sure your memory is not the issue; test the memory modules separately in bank 1 or 2.

When the memory works fine, then the problem must be the memory controller. You should disable the Command per Clock (CPC). If the problem is still there, you should consider lowering the speeds or, as a last resort, buy another processor.

2x 512MB DDR600 2.5-3-3-6 1T Dual Channel

http://img467.imageshack.us/img467/1221/300MHZ_DC_GSKILL_1GBLE.th.jpg (http://img467.imageshack.us/my.php?image=300MHZ_DC_GSKILL_1GBLE.jpg)

http://img467.imageshack.us/img467/8518/300MHZ_DC_GSKILL_1GBLE_sandra.th.jpg (http://img467.imageshack.us/my.php?image=300MHZ_DC_GSKILL_1GBLE_sandra.jpg)

BIOS Settings

Vddr: 2.7v
Tcl: 2.5
Trcd: 3
Tras: 6
Trp: 3
Trc: 9 (12)
Trfc: 14
Trrd: 2
Twr: 2
Twrt: 2
Trwt: 2
Tref: 3072 (200MHz 3.9us)
Twcl: 1

Bank int.: Enable
Skew control: 255 +
Drive strength: 7
Data strength: 2 (4)
Max. Async: 8ns
Read Preamble: 5ns
Idle Cycle: AUTO
Dyn. Counter: Enable
R/W Bypass: 16x
Bypass Max: 7x
32Bit Gran.: Disable


The settings above are set for high performance and stability. The Tref can be tuned higher to e.g. 1.95us for better performance. Tref=3072 is 200MHz 3.9us refresh interval. You can also set Trfc to 12.

When those settings are not stable, you can change the following:

- Max. Async. to 8ns
- Lower the refresh interval (Tref)
- Trrd to 3
- Twr to 3
- Trwt to 3
- Idle Cycle at 128/256

If those settings are still unstable, be careful working with a higher voltage. TCCD does not like high voltage compare to Winbond BH5. Maybe the newer revision TCCD like higher voltage but this one doesn’t. Always start with a lower voltage and increase the voltage step by step to a satisfied value. As you see I only used 2.7v. higher voltage 2.8 ~ 2.9v only gives me errors in Memtest86+!

Always try to run at CL2.5-3-3-6 1T to keep the performance at a high level. But if there is no other way to get this stable you can raise the Trcd to 4. This will decrease the bandwidth by 100-150Mb.

Test known-how’s

- Data strength 2 is the best value for stability, I recommend not increasing or decreasing it. But always test which setting is best for you.

- Drive strength 7 is the best value for stability, I recommend not increasing or decreasing it.

- Always set the bank interleave to enable when you are using two modules. This will increase the performance and stability.

2x 512MB DDR620 2.5-4-4-8 1T Dual Channel

http://img399.imageshack.us/img399/900/gspc4800ff310mhz2544820memtest.th.jpg (http://img399.imageshack.us/my.php?image=gspc4800ff310mhz2544820memtest.jpg)

http://img399.imageshack.us/img399/8355/gspc4800ff310mhz25448memtest7s.th.jpg (http://img399.imageshack.us/my.php?image=gspc4800ff310mhz25448memtest7s.jpg)

BIOS Settings

Vddr: 2.7v
Tcl: 2.5
Trcd: 4
Tras: 8
Trp: 4
Trc: 7
Trfc: 14
Trrd: 2
Twr: 2
Twrt: 2
Trwt: 2
Tref: 3072 (200MHz 3.9us)
Twcl: 1

Bank int.: Enable
Skew control: 0 (off)
Drive strength: 7
Data strength: 2
Max. Async: 9ns
Read Preamble: 5ns
Idle Cycle: AUTO (16)
Dyn. Counter: Enable
R/W Bypass: 16x
Bypass Max: 7x
32Bit Gran.: Disable

The settings above are set for high performance and stability.

When those settings are not stable, you can change the following:

- Read Write Bypass to 8x
- Bypass Max to 4x
- Idle Cycle at 128/256
- Set DQS Skew to 128, Decrease


If those settings are still unstable, be careful working with a higher voltage. TCCD does not like high voltage compare to Winbond BH5. Maybe the newer revision TCCD like higher voltage but this one doesn’t. Always start with a lower voltage and increase the voltage step by step to a satisfied value. As you see I only used 2.7v. higher voltage 2.8 ~ 2.9v only gives me errors in Memtest86+!

Test known-how’s

- Decreasing the DQS Strobe timing gives the memory a huge stability boost, and little performance loss.

2x 256MB DDR640 2.5-4-3-6 1T Dual Channel

Unfortunately I cannot do 10 pass stable with Memtest86+ at 320MHz CL2.5-3-3-6 1T. I only get 5 pass stable. The problem is my memory, one module being not quite as good as the other.

http://img467.imageshack.us/img467/4066/320MHZ_DC_GSKILL_512LA.th.jpg (http://img467.imageshack.us/my.php?image=320MHZ_DC_GSKILL_512LA.jpg)

BIOS Settings

Vddr: 2.9v
Tcl: 2.5
Trcd: 4
Tras: 6
Trp: 3
Trc: 9
Trfc: 16
Trrd: 3
Twr: 3
Twrt: 3
Trwt: 2
Tref: 3072 (200MHz 3.9us)
Twcl: 1

Bank int.: Enable
Skew control: 128+
Drive strength: 7
Data strength: 1
Max. Async: 9ns
Read Preamble: 5ns
Idle Cycle: AUTO
Dyn. Counter: Enable
R/W Bypass: 16x
Bypass Max: 7x
32Bit Gran.: Disable

The settings above are set for high stability. These settings are stable for better modules. So you have to test it by yourself. If these settings are stable with your ram, you can lower the Max. Async. to 8ns for even better performance. You also can lower the Trrd and Twr to 2.

Tref is set 3072 for stable refreshrates. For benching I recommend a faster refresh rated 1.95us.

For better stability you can set the Idle Cycle time to 128 or 256.

Increasing the Trfc by 1 also will increase some stability to your memory.

Test known-how’s

- When you use 2x256MB TCCD modules, I recommend you not to use to much signal strength.

Using 4x512MB of RAM, The Tweaks

Nowadays, 2 Gigabytes of RAM is not unpossible. It is affordable, and not a overkill anymore. Games and mostly graphics-based sofware need that much of RAM. Should you upgrade to 4x512MB RAM if you play alot of games?
The answer is YES, it really helps in shorting loading times and reduce alot of frames drops.
Using 2GB of RAM, the speed /timings of the RAM will be looser and the memorycontroller stress will be increased. Sometimes a little more Vcore is needed. Running at lower speeds like 400MHz-500MHz is not a very big problem, but running at high speeds especially with TCCD DDR550~600 is a hard goal to achieve.

The most important setting change when using 4x512MB is that the system must run 2T command rate. 1T will fail with the nowadays memorycontroller even for the Sandiego/Venice memory-controller.
Further changes are longer asynchronic latency and preamble read latency.

Here I have made some test to achieve the maximum stable speeds with 4x 512MB PC4800 DDR600 RAM. Unfortunately my controller cannot do DDR600, even with looser timings (2.5-4-4-8 2T). The maximum stable lies around 270-280MHz 2.5-3-3-7 1T and 290Mhz 2.5-4-4-8.

http://img399.imageshack.us/img399/284/gspc4800ff270mhz253362048mb8xx.th.jpg (http://img399.imageshack.us/my.php?image=gspc4800ff270mhz253362048mb8xx.jpg)

BIOS Settings

Vddr: 2.8v
Tcl: 2.5
Trcd: 3
Tras: 6
Trp: 3
Trc: 7
Trfc: 14
Trrd: 0
Twr: 2
Twrt: 1
Trwt: 2
Tref: 3072 (200MHz 3.9us)
Twcl: 1

Bank int.: Disable
Skew control: AUTO
Drive strength: 8
Data strength: 3
Max. Async: 11ns
Read Preamble: 8.5ns
Idle Cycle: AUTO (16)
Dyn. Counter: Enable
R/W Bypass: 16x
Bypass Max: 7x
32Bit Gran.: Disable

As you can see, the major changes are stated bold. These are required when cranking up the speeds. I can tell you, tweaking 2048M of RAM is hard :).

When you don't know at what value you should set the read preamble and Max. async, just set AUTO and check A64tweaker in windows. The BIOS automatically set the right setting. Most of time enough to make it stable. This "feature" makes it easier to tweak. Let BIOS do the first step and you do derest.

Overall, the timings are slower. I know. 2T, longer latency timings. BUT, what you get is must better that is for sure!

Is more better? yes only when the software ask for it :D

SAN DIEGO Memory Tweaks

As now the Venice and Sandiego 90nm cores are fully available, these controllers are quiet different to the Newcastle/Clawhammer controllers.

There are changes in the bandwidth, the new cores especialy the Sandiego has a lower bandwidth then the older cores. How this happen is still unknown, soon some clear information will be released. The latency are still the same though.

I have tested a Sandiego 3700+ 1MB processor with memorymodules like PC4800 2.5-4-4-8 1T and PC4800 2.5-4-4-8 2T.

Definitely this core needs some more tweaking then a clawhammer core. My memorycontroller can be lacky but I post my experiences for those who have troubles getting their memory stable at STOCK clocks.

When you run DDR600 2.5-4-4-8 or 2.5-3-3-6 1T you can turn the Bank interleave modus to disable. This might improve the stability on some memorycontrollers.

Second, Decrease the DQS with value 128. This stabelize the Memtest86++ TEST 8 procedure which is more accurate then TEST5.
Please use TEST 8 for memory test procedures instead of TEST 5, plus the errors most of the time occures at 10% , 30% and 60-70% procedure.

Also make sure these settings are at:

- Drive strength 7
- Data strength AUTO or 2

I hope this guide will help you on your road to DDR600 speeds with your brand new S939 setup!

Kakaroto,

Thnx [M] for improving the translation work!

Very Handy Articles related to Tweaking TCCD

- What is DQS? Discuss it! (http://www.xtremesystems.org/forums/showthread.php?t=57925&highlight=DQS) ~by OPB!

updates

1 april 2005 - added new TCCD series.
12 april 2005 - small change Tref setting.
25 may 2005 - San Diego memory tweaks section added.
27 may 2005 - Add DDR620 2.5-4-4-8 1T stability guide
11 juli 2005 - Add 2048MB RAM stability guide
7 januari 2006 - some minor changes

[HiJon89]

Thanks for the great guide, its gonna help me a lot once I finally get this rig running :toast:

[Dumo]

Thanks for the great guide, its gonna help me a lot once I finally get this rig running :toast:Thats your LE....431 :toast: Kakaroto's #892

[LowRun]

Very nice, will probably help tons when i'll finaly be able to put together the 4x512 TCCD sticks that should be there next week with one of those Venices and a DFI if the Gruper is late to the party.
You forgot the rev 504 TCCD in your list ;)

[SLaY3r07]

Yep, great guide by [M]

[kakaroto]

Yep, great guide by [M]

I wrote this guide :) Gave permission to post on [M] and to improve my translation.

[SLaY3r07]

I wrote this guide :) Gave permission to post on [M] and to improve my translation.

Yeah I just saw this guide on [M]. Great guide kakaroto :banana:

[kakaroto]

If anyone have questions or other related problem with the guide you can post here.

For G.Skill memory related problems you can post here: http://xtremesystems.org/forums/showthread.php?t=55229

Any suggestions are most welcome!

[metro.cl]

awsome kakaroto really nice i linked it a chilean forum, i hope you dont mind

[dillingerdan]

Very Nice! I'm sure this will help me. Thanks very much. :)

[Necromonger]

Kakaroto, this guide will be xtremely helpful for me and Im sure many others, great job, thanks.

[kiwi]

Thanks. :D
I still have to find the best timings and speed for my pair of sticks but this guide saves a lot of time. :cool:

[IvanAndreevich]

Thanks for sharing your experience Kakaroto. I will be sure to look at this when I am building my new system :toast:

[Roi]

This guide is awesome, thank you very much for your time kakaroto :up: .
It helped me push my 1GB LA past the DDR620 territory, memtest stable for hours.
The main thing I never considered was enabling the dynamic counter which seems to help a lot. Setting the drive strength to 7 was also a great tip (it turned out to be much more stable than 8 which I always used).
Once again, thank you ! :toast:

[flexy]

this is an awesome, very CLEAR and detailed guide !

I am looking for a LONG time already on many forums for TCCD optimisations around 300 HTT or so....problem is mostly you find "general" advice for people having problems at stock.....RARELY a complete and detailed advice HOW (!) exactly and with which settings to go 300 etc.


I am trying for WEEKS already to run my OCZ TCCD REV2 at 2.5 3 3 7 (instead of 2.5 4 3 7) running at 289.....and i will try your tips tomorrow starting with decreasing my voltage etc...

VERY NICE and thanx again !

[flexy]

hey, i know this is mainly for Gskill....anyway i used this guide for my OCZ 3200 el rev2 plats and i can tell with CERTAINITY that they dont do 289 @ 2.5 3 3 7.
[i am running a 3500 winchester at 9x289/288, i am positive my CPU does 2600mhz)

The funny thing is ONE freaking mhz less (ie. 288) and i can run them finally 2.5 3 3 7 at 288. I dont know how many *hours* i tweaked and memtested.....but this ONE mhz was which almost drove me into insanity.

Eg. w/ 289 i was so on the edge that i passed 9 runs memtest #5 and got some errors on the 10th run ---> instable. My criteria is 15 runs of memtest #5 to consider them stable right now.

I can also say with certainity that *my* OCZ sticks run best at 2.9V....started out 2.7/2.8 but 2.9 is the golden sweet spot and 3.0 is the same...so 2.9V is it, no more, no less. memtest #5 is a nice indicator for needed voltage.

One finding:

I think my efforts (and also the recommendations to IF ANY POSSIBLE run 2.5 3 3 7 instead of 2.5 4 3 7) are more "theoretical" than doing anything in real life.

My mem bandwidth (after tweaking) in memtest is always around 3176MB/s...and after i finally managed to run the sticks 2.5 3 3 7 (with 9mhz less on the CPU since i changed from 9x289 to 9x288 but with TRCD@3) i did my benchies.

Eg. Farcry 800x600 Hardware OC benchmark (which is good for testing latency/mem bandwidth impact etc.) has the same results as i have with the former TRCD @4 - and everest/memtest etc. is all about the same.

I cannot confirm that TRCD at 3 is some magic goal to achieve for great improvement...at least i dont see ANYTHING which would make me conclude that in any benchmark results !
In other words:
If you run 2.5 4 3 7 in the 290-3xx HTT range...and you get ~3200MB/S in memtest then you might be well off and can save yourself the time to go to 2.5 3 3 7 since it doesnt do ANYTHING. Zero !

Feel free to prove me wrong by showing me a benchmark where i can see a huge impact by changing TRCD 4-->3. At least not in my case and at speeds in the HTT range 290-3xx.



NOTES:

Beware of "async latency"....eg. set it to 9ns and it passes memtest.....but i get bad crashes in windows. So leave at 8ns or 7ns.

Beware of every memory benchmark in windows...especially everest since the results can change GREATLY - depending when you run it.
GREAT results right after boot - do some stuff, run everest again.....and the values hit rock bottom. This is hardly reliable and usable for comparison w/ other people.
IMHO the only halfway reliable measurement for bandwidth is from within memtest.

[HiJon89]

I'm at 8x300 now thanks to this guide, thanks a ton :toast:

[Charloz24]

Great guide!!! Thanks a lot it helped me with my ocz plat rev2. Nevetheless, I was unable to run them 2.5-3-3-7 @ 300 htt but it was close! I always get some 6-8 errors each 10 pass of test 5 so I run them 2.5-4-3-7.

[Onepagebook]

:up: Definitely the TCCD bibble here.

[flexy]

Great guide!!! Thanks a lot it helped me with my ocz plat rev2. Nevetheless, I was unable to run them 2.5-3-3-7 @ 300 htt but it was close! I always get some 6-8 errors each 10 pass of test 5 so I run them 2.5-4-3-7.

see my reply :)

maybe ONE reason is that the OCZ need more voltage, at least mine do..they love 2.9V. And they get HOOOTTT :) Thats probably the reason we can run 9 or so passes fine...and then slowly the errors are popping up because of heat issues.


In the guide he uses 2.7V for his Gskills btw.

[cupra]

:up: Definitely the TCCD bibble here.


and you right my friend :toast:

[xavicl]

nice guide, i can reach 305x9 (2.5-4-3-7) but unstable , maybe for memory controller.

[kakaroto]

hey, i know this is mainly for Gskill....anyway i used this guide for my OCZ 3200 el rev2 plats and i can tell with CERTAINITY that they dont do 289 @ 2.5 3 3 7.
[i am running a 3500 winchester at 9x289/288, i am positive my CPU does 2600mhz)

The funny thing is ONE freaking mhz less (ie. 288) and i can run them finally 2.5 3 3 7 at 288. I dont know how many *hours* i tweaked and memtested.....but this ONE mhz was which almost drove me into insanity.

Eg. w/ 289 i was so on the edge that i passed 9 runs memtest #5 and got some errors on the 10th run ---> instable. My criteria is 15 runs of memtest #5 to consider them stable right now.

I can also say with certainity that *my* OCZ sticks run best at 2.9V....started out 2.7/2.8 but 2.9 is the golden sweet spot and 3.0 is the same...so 2.9V is it, no more, no less. memtest #5 is a nice indicator for needed voltage.

One finding:

I think my efforts (and also the recommendations to IF ANY POSSIBLE run 2.5 3 3 7 instead of 2.5 4 3 7) are more "theoretical" than doing anything in real life.

My mem bandwidth (after tweaking) in memtest is always around 3176MB/s...and after i finally managed to run the sticks 2.5 3 3 7 (with 9mhz less on the CPU since i changed from 9x289 to 9x288 but with TRCD@3) i did my benchies.

Eg. Farcry 800x600 Hardware OC benchmark (which is good for testing latency/mem bandwidth impact etc.) has the same results as i have with the former TRCD @4 - and everest/memtest etc. is all about the same.

I cannot confirm that TRCD at 3 is some magic goal to achieve for great improvement...at least i dont see ANYTHING which would make me conclude that in any benchmark results !
In other words:
If you run 2.5 4 3 7 in the 290-3xx HTT range...and you get ~3200MB/S in memtest then you might be well off and can save yourself the time to go to 2.5 3 3 7 since it doesnt do ANYTHING. Zero !

Feel free to prove me wrong by showing me a benchmark where i can see a huge impact by changing TRCD 4-->3. At least not in my case and at speeds in the HTT range 290-3xx.



NOTES:

Beware of "async latency"....eg. set it to 9ns and it passes memtest.....but i get bad crashes in windows. So leave at 8ns or 7ns.

Beware of every memory benchmark in windows...especially everest since the results can change GREATLY - depending when you run it.
GREAT results right after boot - do some stuff, run everest again.....and the values hit rock bottom. This is hardly reliable and usable for comparison w/ other people.
IMHO the only halfway reliable measurement for bandwidth is from within memtest.

First, thank you for sharing your experience! :)

The difference between Trcd 4 to 3 can only be seen in benchmarks.

If you test Sandra 2004/2005 you can see some bandwidth loss when running trcd 4 instead of 3.

Here a sample with Pifast calculating 1M pi:

http://xtremesystems.org/forums/attachment.php?attachmentid=27598&stc=1

MEMTEST86++ bandwidth is not accurate. I have experienced heavy bandwidth difference when changing Trcd, Tref, Twr and Trrd, sometimes 100-200MB difference.
The bandwidth is also related to your processor speed, not constant like on the S754 platform.

[xavicl]

nice guide for gskill, in my ocz plat rev2 i need to put several settings to auto to run memtest without errors. So settings for gskill not for ocz tccd

[flexy]

hi kakaroto,

thanks for the posting and the screenshots.


i have more information coming after a weekend and today tweaking and benching and priming without end :) Btw. i have a winnie week 42 3500+, dfi ultra-d, 310p bios, the two OCZ 3200 rev2s...X-120 heatsink

Ok...first...you are right, cooling is EVERYTHING !

I put a 80mm Sunon Fan over my sticks and BINGO ! - i could tighten my timings a lot and finally could run them 289 2.5 3 3 7 1T with the tightest timings possible.

I tested the new setting (now with fan blowing) 15 runs memtest #5, pass memtest #8 and one complete memtest run....and i did not HAVE one error.

Also...after priming (better OCCT-ing since OCCT is even more sensitive than prime) i *know* that my CPU is good for 2600.

So...i took the new memory timings (which were actually the SAME like my 2.5 4 3 7 timings except the "4").....and as said i pass memtest like a champ....but then disaster struck in Windows !

OCCT/Prime...i couldnt even run 5 secs with the VERY SAME settings which passed memtest..and at 2601mhz and same voltage as i had before.

So...i took a64tweaker and started to tweak back (relax) many timings...kept the "3" TRCD at any cost but tweaked all the usual stuff down....but for nothing on earth i could get prime/occt running more than 7mins without it complaining - and then i already tweaked down all the nice settings and lost bandwidth.....but prime STILL complaining.

After hours and hours and experimenting i am now back to my old 2.5 4 3 7 settings..and i am priming right now (just to double check) and of course everything is fine.

What i want to say:

If you tweak the memory - well we all know the memory controller is on the CPU. Change TRCD (or anything) from 4 to 3 - and your CPU will have a totally different overclocking behaviour (which makes sense - kind of).
The relationship CPU/memcontroller/memory is that way that tweaking the one thing will influence the other. Maybe this is often overseen.

The result: You might run memtest for hours...but you might get a surprise in Windows...and especially once you start testing with prime/occt.

I am really still kind of surprised since i did not expect that GREAT of problems, eg. not even 5 secs stable in OCCT is *serious* instable - i also had errors like page faults and BSODS whatever - this just to show you that memtest...well....i dont know. What does it mean when i can pass memtest for hours but cant pass 5 secs in OCCT ?

It MIGHT be that these highly tweaked settings are only good for CPUs at stock speed....eg. you can run your memory at those speeds and the CPU can handle the tight latency if its not overclocked....and if the CPU is already on the edge (like mine w/ 2600mhz)...it just cannot handle the latency ?

[wai-wai]

gd guide~~!!
i love it >3<

[Crosis]

Hi there,
First thatks for that guide ;) It's my first post here, so please forgive me my English :) Everybody are sharing with their experiance, so I'll do the same ;) I've tried to reach stable 2,5-3-3-6, but I have no idea how to do it :( I've tried settigs that kakaroto posted here, I've tried also things he called "when those settings are not stable" and nothin' :( I have closed case, zalman F2 (low) on the window of case, 2 80mm Thermaltakes on the side and zalman 7000b (low). I'm trying to reach that score in "everyday conditions". Increasing vddr does nothin', better cooling the same. Now I'm testin' 2,5-4-3-6 in windows memtest. It's 800% without error so far. If that settings will be stable It will be ok, but I'm afraid that I would not reach highest frequency (310-315) with nice timings (2,5):(

EDIT:
I've tried 2,5-4-3-6 on 310 and had errors in #5 so I increased Trp to 4 and #5 was passed... but errors in #8 :down: :(

[kakaroto]

hi kakaroto,

thanks for the posting and the screenshots.


i have more information coming after a weekend and today tweaking and benching and priming without end :) Btw. i have a winnie week 42 3500+, dfi ultra-d, 310p bios, the two OCZ 3200 rev2s...X-120 heatsink

.......................................
.......................................
.......................................

It MIGHT be that these highly tweaked settings are only good for CPUs at stock speed....eg. you can run your memory at those speeds and the CPU can handle the tight latency if its not overclocked....and if the CPU is already on the edge (like mine w/ 2600mhz)...it just cannot handle the latency ?

Your are totally right with that!, Memtest86++ test5 is far from 100% stable in windows (Prime95 long time stressing)
To get your memory fully stable, I think you must run the STD for some passes (~ 1 hour) and test 8 for a long time.

The memorycontroller is implemented in the core, but I think when the CPU is on the edge, this must have influence to the memorycontroller. But I haven't tested that so..

Hi there,
First thatks for that guide ;) It's my first post here, so please forgive me my English :) Everybody are sharing with their experiance, so I'll do the same ;) I've tried to reach stable 2,5-3-3-6, but I have no idea how to do it :( I've tried settigs that kakaroto posted here, I've tried also things he called "when those settings are not stable" and nothin' :( I have closed case, zalman F2 (low) on the window of case, 2 80mm Thermaltakes on the side and zalman 7000b (low). I'm trying to reach that score in "everyday conditions". Increasing vddr does nothin', better cooling the same. Now I'm testin' 2,5-4-3-6 in windows memtest. It's 800% without error so far. If that settings will be stable It will be ok, but I'm afraid that I would not reach highest frequency (310-315) with nice timings (2,5):(

EDIT:
I've tried 2,5-4-3-6 on 310 and had errors in #5 so I increased Trp to 4 and #5 was passed... but errors in #8 :down: :(

First thanks everyone for using the guide, I'm happy it also works on most of the people.

What is your max stable with 2.5-3-3-6 1T @2.6~2.7v. If you get a speed working stable you can work further with that speed.

[flexy]

The memorycontroller is implemented in the core, but I think when the CPU is on the edge, this must have influence to the memorycontroller. But I haven't tested that so..


Probably old news...but tweaking various "memory" settings has quite a significant influence on how high you can overclock your CPU.

Maybe some people who run at a wall w/ their CPU should just relax some memory timings and might get a suprise because their CPU might overclock far better.

It might be old news for the Pros but i never saw it from that perspective.....eg. if you overclock CPU you think HTT, Core Voltage....but never really the memory timiings. Yesterday in some tests (OCCT, Prime) etc. i came close to 2700 with my winnie which had a hard time before reaching eg. 2610...

But..of course there are always trade-offs...if you increase latency and timings to get more mhz on the CPU you might lose a similliar amount on the memory (because the timings)...and..after all....the overall performance is the same.

[Ackbar]

I noticed that you placed Winchesters, Newcastles and Venice all in the "low to mid-range" of CPUs. While Clawhammers are in the high end, but you didn't include 3500+ Clawhammers in there. What are your thoughts (if any) on the quality of the memory controller of the 3500+ Clawhammers?

Great guide! I had no idea the number of Winchesters with a poor memory controller was so high!

6/10!!! :shocked:

[WiCKeD]

Awesome! This is just what I was looking for!!!

One thing I would say is that TCCD gets hot at any voltage. Active cooling is definitely advisable.

[zeebs]

Props on a sick ram guide. Thanks for taking the time to make this, it should assist a lot of people in reaching their overclocking goals. I will let you know what it does for me when I get my tax return -> san diego/venice :D

[Sir Lancelot]

Hi there,

First of all, thank you for this guide!

But I have a problem here, those settings seem to work fine @ 1:1, but with the 180 divider, I cannot have my mems stable at 282MHz.


My rig is:
A64 3000+ @ 3100MHz, S&M 1.51 stable (Prommy cooled)
DFI NF4 Ultra-D
OCZ Powerstream 520W
ATI X850XT PE
4x 160 @ RAID0
and of course, 2x 512 GsKill 4800LA




Any help will be much appreciated ;)



Thankx

[Crosis]

What is your max stable with 2.5-3-3-6 1T @2.6~2.7v.
Really? I haven't tried yet :P I've just tried 275 and 300.
If you get a speed working stable you can work further with that speed.
In Poland we have a small competition in SuperPi 16M, and I have some results to defeat :P So I'm searching for the best timings at ~315.

[Tutti-frutti]

Nice guide again :)
I have tested my Gskill TCCD too, with a lot of different settings.

My settings are almost the same as this guide now, but I have 2 different vallues:

Tref:
A value of 4708 will not result any error in Test #5 of memtest, I have 40 passes without an error. But when I run the STD test, 2-6 errors will pop up in test 3 and 4 each round. Even on a frequency of 260 mhz (haven't test lower than that).
When I changed this value to 3072 cycles, the errors are gone :)
This is a little bit strange, because it's faster and, in theory, it will result in less stability. I have talked about this with Kakaroto, and he saw the same problem. It seems TCCD loves Tref 3072c more than 4708c.

TRC:
The other differrent value is the TRC. Reducing this value to 8 (guide: 12) doesn't hit the stability of my system, but it gives a better bandwitdh (3099 MB/s --> 3297MB/s in memtest on ddr600)

So this will be my optimized memory configuration:

BIOS Settings

Vddr: 2.7-2.9v (2.9volt performs best here)
Tcl: 2.5
Trcd: 3
Tras: 6
Trp: 3
Trc: 8
Trfc: 14
Trrd: 2
Twr: 2
Twrt: 2
Trwt: 2
Tref: 3072(200MHz 3.9us)
Twcl: 1

Bank int.: Enable
Skew control: 255 +
Drive strength: 7
Data strength: 4
Max. Async: 8ns
Read Preamble: 5ns
Idle Cycle: AUTO
Dyn. Counter: Enable
R/W Bypass: 16x
Bypass Max: 7x
32Bit Gran.: Disable

[kakaroto]

Nice guide again :)
I have tested my Gskill TCCD too, with a lot of different settings.

My settings are almost the same as this guide now, but I have 2 different vallues:

Tref:
A value of 4708 will not result any error in Test #5 of memtest, I have 40 passes without an error. But when I run the STD test, 2-6 errors will pop up in test 3 and 4 each round. Even on a frequency of 260 mhz (haven't test lower than that).
When I changed this value to 3072 cycles, the errors are gone :)
This is a little bit strange, because it's faster and, in theory, it will result in less stability. I have talked about this with Kakaroto, and he saw the same problem. It seems TCCD loves Tref 3072c more than 4708c.

TRC:
The other differrent value is the TRC. Reducing this value to 8 (guide: 12) doesn't hit the stability of my system, but it gives a better bandwitdh (3099 MB/s --> 3297MB/s in memtest on ddr600)

So this will be my optimized memory configuration:

BIOS Settings

Vddr: 2.7-2.9v (2.9volt performs best here)
Tcl: 2.5
Trcd: 3
Tras: 6
Trp: 3
Trc: 8
Trfc: 14
Trrd: 2
Twr: 2
Twrt: 2
Trwt: 2
Tref: 3072(200MHz 3.9us)
Twcl: 1

Bank int.: Enable
Skew control: 255 +
Drive strength: 7
Data strength: 4
Max. Async: 8ns
Read Preamble: 5ns
Idle Cycle: AUTO
Dyn. Counter: Enable
R/W Bypass: 16x
Bypass Max: 7x
32Bit Gran.: Disable

Thanks Tutti-fruti, this finding is very nice :D

[ben805]

I thought the Bank Interleave need to be disable for stability?

[kakaroto]

I thought the Bank Interleave need to be disable for stability?

Interleaving allows banks with RAM to alternate their refresh and access cycles.
If 2x dimms (double sided) is used (2x 512), I recommend Interleaving mode. (4-way)
When you use single sided dimms (2x256), I recommend disable Interleaving mode (2-way) for best functionality.

[Sir Lancelot]

Kakaroto: and how about when using the 180 divider?...Mine works more or les fine @ 1:1, but with the 180 divider, it's a no go...



Thankx

[eva2000]

for BH-5 2x 512MB interleaving caused instability but for 2x 512MB TCCD they were more stable with interleaving

[fareastgq]

So if you use all the settings mentioned above in tuti fruti's post and your comp posts at 230 fsb 2x512, but reboots after it gets into windows and loads everything, how do you fix that? This might help some of u too, run your ram 2t, this helped me out, but I think I corrupted my inital os install so I have to reformat now :/ On a differnt note, anyone know what I can do for 1t settings and stopping the reboot? I was using 310p bios for this, I'm switching back to 2-17 and trying the settings now after a fresh install. I have seen you guys talk about ram timings, but what about the other voltages for the MB like LDT and chipset etc...here goes 1 long night of testing...

[mdzcpa]

Tref:
A value of 4708 will not result any error in Test #5 of memtest, I have 40 passes without an error. But when I run the STD test, 2-6 errors will pop up in test 3 and 4 each round. Even on a frequency of 260 mhz (haven't test lower than that).
When I changed this value to 3072 cycles, the errors are gone :)
This is a little bit strange, because it's faster and, in theory, it will result in less stability. I have talked about this with Kakaroto, and he saw the same problem. It seems TCCD loves Tref 3072c more than 4708c.


Same experiences here. I run all of my GSkill DFI combos with a Tref of 3072.

[Onepagebook]

Same experiences here. I run all of my GSkill DFI combos with a Tref of 3072.

When I run super pi, I set 100, 1.95
3072 can be normal using purpose.

[mdzcpa]

When I run super pi, I set 100, 1.95
3072 can be normal using purpose.

Thanks for the tip, I'll give that a try for benching :toast:

And, yes, the 3072 is for 24/7 use:)

[chew*]

Great guide thx I just purchased 2x256mb sticks of F1 LA and ill be using this guide to try t hit 8x300. very informative :)

[eva2000]

Thanks for the tip, I'll give that a try for benching :toast:

And, yes, the 3072 is for 24/7 use:)
my 2 sets of 2x 512MB Gskill PC4400LE 431 only hit 290mhz 2.5-4-3-7 1T at 2.9v (2.7 and 2.8v errors) on DFI NF4 SLI-D with 310 bios in memtest and 3072 was most stable, with new 325 beta bios 3120 TREF was more stable

[kakaroto]

Kakaroto: and how about when using the 180 divider?...Mine works more or les fine @ 1:1, but with the 180 divider, it's a no go...



Thankx

That a mobo bug I guess. I have troubles with high HTT with MP8 and 9.

[kiwi]

I've mainly used memtest and prime. Is STD some memory stability test? Link to download? Couldn't find it in google.

What about chipset and LDT voltage? Any suggested values? 1.3 and 1.7 is nice I guess.

[kakaroto]

I've mainly used memtest and prime. Is STD some memory stability test? Link to download? Couldn't find it in google.

What about chipset and LDT voltage? Any suggested values? 1.3 and 1.7 is nice I guess.

Noooo :) STD is a testing procedure in Memtest86++. You can select the test with "test selection"

Ik use 290MHz HTT with 1.2 LDT / 1.5v chipset.

[Jesse71]

Thanks for the great guide, I have just received my Gskill GBLA today :toast:

Tests for this week-end on my DFI Nf4 Ultra :p:

[kiwi]

Noooo :) STD is a testing procedure in Memtest86++. You can select the test with "test selection"

Ik use 290MHz HTT with 1.2 LDT / 1.5v chipset.

Ah yeah! lol stupid me :stick:

[Sir Lancelot]

Hi there,

First of all, thank you for this guide!

But I have a problem here, those settings seem to work fine @ 1:1, but with the 180 divider, I cannot have my mems stable at 282MHz.


My rig is:
A64 3000+ @ 3100MHz, S&M 1.51 stable (Prommy cooled)
DFI NF4 Ultra-D
OCZ Powerstream 520W
ATI X850XT PE
4x 160 @ RAID0
and of course, 2x 512 GsKill 4800LA




Any help will be much appreciated ;)



Thankx


I still need help on this....

Come on guys, give me a hand here ok....



:stick:

[Teukka76]

My 1GB GBLE 440 set can do 286MHz 2.5-3-3-7 @2.8V how much can I gain raising the volt to 2.9-3.0V?

[fareastgq]

Here's an update, after a clean install, I was able to run the ram dual channel with the relaxed timings and managed to get it 3dmark2001se stable, it's very important that you relax the tref and change the idle cycle time to 128 or 256, these are the only settings that I could get to run 3dmark stable, (bios 2-17), I was using this bios because this is still the ONLY bios for me that doesn't corrupt my OS install no matter how much I OC. For my system I still feel this is the best bios, Also, currently I am not able to max out the potential of my chip due to heat (dumb stock cooler), I have no doubt under water this chip will fly at 2.7 gigs and 275-280 HTT dual channel (I'm talking 100% stable for 24/7 oc now) , in memtest I was stable up to 280 HTT dual channel on 2.7 volts, seems to get into windows though, I need 2.9, the sticks are hotter running memtest than any games or 3dmark, thanks to OPB for the new sticks, they rock man. One last note, I ran 1T timings.

[flexy]

Ah yeah! lol stupid me :stick:

"STD" is just the whole testsuite test #1 to test #8, without the "extended" tests.

Still....i have some problems with memtest since it looks it literally has no use EXCEPT for checking that memory sticks are working ok, or that they get enough voltage etc. to work properly.
Ok, this alone is certainly already worth a lot !

BUT
If you see my other posts.....and the OP's comments....dont even ASSUME that a bunch of memtest runs gives you any indication about stability in Windows or in games/apps.

I had it happen that i run 15 tests #5 ok and STD and test #8....and with the very same configuration i couldnt even properly boot into windows...not to mention that it was only prime stable for 5 secs etc.

So...check your memory sticks with it...let it run a few runs to make sure your memory is working ok....but for overclocking and tweaking OCCT or prime is much better and memtest is almost useless !

[LowRun]

There are now TCCD 507 to add to the list too.

[kakaroto]

There are now TCCD 507 to add to the list too.

will do thnx. Are there any test with the new 50x series?

[althes]

Great guide, I will definitely be using it today with my tccd 2*256 la

[rick_fx]

Great guide!!!

Got 300MHz 2.5-3-3-6 at 2,7V.

With a little tweaking, tccd is now stable at 2.5-4-3-5 @325 with 2,9V :)

[LowRun]

will do thnx. Are there any test with the new 50x series?

There are some done with 504 and very few as of now with the 507, you could eventualy PM Computermsa for further infos. I got my 4x512 507 stick courtesy of this young gentleman but i'm waiting for the Venice to compliment them with and have nothing serious to test them right now, will do ASAP.

[webbyboy]

My PDP 440 TCCDs can't do even 275mhz with the exact settings on the first post. I wondering why. voltage i gave was 3.0V.

[Jesse71]

I have a link with the new TCCD 507

http://www.oc.com.tw/article/0503/readgoodarticle.asp?id=3625

http://www.oc.com.tw/article/0503/imgs/Cebit2005-TeamGroup-09.jpg
and
http://www.oc.com.tw/article/0503/imgs/Cebit2005-TeamGroup-08.jpg

[psy^]

I have a link with the new TCCD 507

http://www.oc.com.tw/article/0503/readgoodarticle.asp?id=3625



Holy crap, actually rated for 350MHz @ 3-4-4-8, 2.95v :eek: :slobber:
That's some crazy shiat, i sure can't see DDR2 (or 3 at this rate) taking over as the standard any time soon :D

[jmke]

My PDP 440 TCCDs can't do even 275mhz with the exact settings on the first post. I wondering why. voltage i gave was 3.0V.

try 2.75v

[arctic-k20]

great guide - really helped!!

guys - i was wondering if anybody had suggestions for me to try and tighten some timings in my setup:

300x9 1:1

2.5-4-3-6-9-14-3-2-2-2-3072-auto-incr-255-7-2-8-5-256-en-16-7-dis

those settings get me 32m superpi stable but if i put trcd to 3 it errors out pretty quick - they are ocz 4200plat tccd and seem happiest @ 2.7v

also i have tried 4708 vs 3072 and 3072 is more stable....

[xavicl]

You cant put trcd to 3 at those speeds, search the limit. I reach 280 at 2.5-3-3-5 and more than 280 need to raise 1 on trcd, so at 300 I use 2.5-4-3-7 with only 2.8V ;) with 3/26 BIOS.

[gundamit]

I have a link with the new TCCD 507 So this company (ASTAK?) is marketing a stick from one production week? I imagine quantities are limited. Pretty exciting stuff since its guaranteed to run 3-4-4-8 but I'm wonder if some of these 512mb sticks will go 2.5-4-3-6 like OPB's pair of 256mb sticks. Wishful thinking?

[GNU]

Did anyone using LDT/FSB? What's the best for overclocking? I see 5x at bios? It's good if i using 9x260 LDT/FSB 4x @2340MHZ? More LDT/FSB more Power?

[arctic-k20]

you want to keep the overall ht speed below 1000 - so 5x times your ram speed = ht speed

for 260 4x should be ok but much higher than that and you will need to lower it to 3x

[GNU]

you want to keep the overall ht speed below 1000 - so 5x times your ram speed = ht speed

for 260 4x should be ok but much higher than that and you will need to lower it to 3x

Okay thank you very much.

[GNU]

you want to keep the overall ht speed below 1000 - so 5x times your ram speed = ht speed

for 260 4x should be ok but much higher than that and you will need to lower it to 3x

I have forgotten anything. It's better to set LDT/FSB "auto" ? I read some posts and some members mean it's better for High OC and it's better if you set CPC diesable?

[arctic-k20]

cpc is 1t or 2t
enable=1t disable=2t

yes you can overclock higher if you set it to 2t but there is a performance hit
and i would choose a ldt number - not auto because it will auto to 5x and you will become unstable fairly quickly once you are over 1000

[kakaroto]

cpc is 1t or 2t
enable=1t disable=2t

yes you can overclock higher if you set it to 2t but there is a performance hit
and i would choose a ldt number - not auto because it will auto to 5x and you will become unstable fairly quickly once you are over 1000

When you set AUTO, the LDT multiplier is adjust when the HTT is high.
I get multiplier 3x when setting HTT to 300MHz (LDT = AUTO)

[GNU]

cpc is 1t or 2t
enable=1t disable=2t

yes you can overclock higher if you set it to 2t but there is a performance hit
and i would choose a ldt number - not auto because it will auto to 5x and you will become unstable fairly quickly once you are over 1000

Okay thank you but i have FSB 9x260 LDT/FSB 4x it's HTT 1040 it's also over 1000. Shall i reduceLDT/FSB on 3x and set FSB 9x270 it's better?

@kakarotto: Multiplier 3x? Isn't too bad for OC?

[mdzcpa]

I've run numerous DFI NF4 boards at 300 x 4 LDT for 24/7 use. The 1000mhz max rule of thumb on the hypertransport bus doesn't apply to the NF4 like it did with the NF3.

Just fyi.

[S0nic]

I've run numerous DFI NF4 boards at 300 x 4 LDT for 24/7 use. The 1000mhz max rule of thumb on the hypertransport bus doesn't apply to the NF4 like it did with the NF3.

Just fyi.

did u have to raise ldt voltage from 1.2V? or the chipset voltage from 1.5V? because afaik it's not a mobo issue, it's a chipset issue..

[SET]

hello.

I have problems here. I have tried the configuration as Kakatoto says, but cannot cause that this works correct. Actiualmente I obtain these results on 3/10.P.

Somebody can say please to me that I must change or that I am making bad?

Thank you very much

[arctic-k20]

try chaging:
trfc=14
trc=9
max async=8ns
idle cycle limit=256

and are you sure 1.4v is enough for you cpu @ 2500mhz ? might need a smidge more

[SET]

My configuration is:

Vcore: 1.550 + 104%
LTD: 1.2V
Chipset: 1.5V
Vdimm: 2.9V

Profit to obtain 2,6 Ghz with these adjustments, but does not finish the PI 1M. T

hat but I can do?

Thanks

[arctic-k20]

trrd=3
tref=200mhz 3.9us

also try andyocz's vcore trick - set vcore to 1.3 and set 123% - try those settings and see if it helps!

[xavicl]

trrd=3
tref=200mhz 3.9us

also try andyocz's vcore trick - set vcore to 1.3 and set 123% - try those settings and see if it helps!
why 1.3*1.23% = 1.6V and no using 1.4, or more and 1.13 or 1.1 multi? is is worth to use 123% multi, any advantage?

[arctic-k20]

because it has been noticed that the vcore doesnt track properly when using 1.5+10% etc so if you drop it down to 1.3~1.4 and use a higher % you may get the vcore to scale up properly and get your cbbid to o/c

[SET]

Bad news.

I have tried all the possible configurations and this does not want to do 260 x 10 @ 2.5-3-3-x I have thought to change my memories by a UTT, can be good election?

Thanks for everything.

[MadMikeSS]

I'd like to say a thank you to the thread starter for providing this information. I used the settings listed for DDR550 with 331-3 bios with my G.Skill PC4400 LE modules and It's running perfectly. I will post some screens when I get home. But I'm very happy with what I have so far. The board worked perfectly right out of the box with the 1/25 bios also. But I'm glad someone posted some manual settings that work well. Thanks a bunch.

[GNU]

I use the settings @DDR550 but not 550 only 540 because if i try to set the FSB up to 275 or 280 at the same settings. Memtest shows too much errors.
At next i use the same settings @DDR600 but not 600 only 540. I can't set the FSB up
to FSB280. I have no idea. I want to run FSB 280 but it's crashes every time.
Can you help me.

[GNU]

I tried to use different settings but nothing runs. Any idea?

[Huhn]

thanks for this nice guide :) running my tccd adata 566er 2x512mb @ 300mhz cl 2,5-4-3-7 2,7v now. runs flawlessly and rock stable. without thta guide, even 300 mhz with 3-4-4-8 were not stable at all :toast: :woot:

[kakaroto]

thanks for this nice guide :) running my tccd adata 566er 2x512mb @ 300mhz cl 2,5-4-3-7 2,7v now. runs flawlessly and rock stable. without thta guide, even 300 mhz with 3-4-4-8 were not stable at all :toast: :woot:

Glad it helped alot of people here :toast:

=========
Guide is updated with a small change.
Tref 3072 is better then 4078 for 24/7 stability.
=========

Trc = 8 sometimes helps for better stability in memtest86++. Not confirmed by me. Thanks Tutti-fruti.
=========

Another thing:
Q:
My memtest session test5 is doing fine 200pass+ butwindows is not stable. (prime etc)
A:
Try up 0.1v.

[kakaroto]

I use the settings @DDR550 but not 550 only 540 because if i try to set the FSB up to 275 or 280 at the same settings. Memtest shows too much errors.
At next i use the same settings @DDR600 but not 600 only 540. I can't set the FSB up
to FSB280. I have no idea. I want to run FSB 280 but it's crashes every time.
Can you help me.

Please give us more info to help you. What kind of CPU are you using and what kind of RAM.
Thank you.

[GNU]

Please give us more info to help you. What kind of CPU are you using and what kind of RAM.
Thank you.

Sorry i have forgotten it.

Winnie 3200+
DFI Ultra-D
2x512 OCZ 3200+ EL DC
Tagan TGU480 - U01
Bios 310P (testing now)

After my post about Memtesterros. I have tested with 2.5-4-4-8 @280. It runs but not long. I tested with Memtest. It's okay then i tested with Sandra and Prime95 (long FFT 3h). It's okay but i tested first time the torture test BLEND (Prime95) it shows me an error. Another problem is if i play a game like Silent Hunter 3 (This game need very high memory) then my system crashes. My system doesn't run @2520 Mhz. And i want reach FSB 280 - 290 stable WITH 3-3-6/7/8 (anything but Trcd 3! It's faster and i read many posts about Tras. It's better 8 than below 8 but i want to reach fast settings without any lost of data) I can't solve my problem.
Ah yes i tested with Memory Analyzer (this program crashes while testing).

Summary all settings are not 100% stable.

[Gogeta]

For anyone using this guide: Remember, every rig OCs differently from the next, even if the hardware is identical. With this in mind, change each timing individually from the rest using A64 tweaker in Windows. You can then test for stability using Pi or 3DMark once the setting has successfully been established by A64 tweaker. This way if your system has a strange quork (ie can't run Trp of 3 above 250MHz...pretty uncommon in my experience) it can be singled out without going through an unsuccessful post if you were manually setting all the timings at once in the bios. Just something to keep in mind, even for the veterans out there (we all make dumb mistakes.) :D

GNU:
Try using 1.325v + 136% special and the 166MHz RAM divider. Then boot at 260htt or so and see if you can't scale to 290...Seems to me like your mem controller just can't hang at those speeds.

Here is what I run 24/7 with my OCZ PC4400 Hynix and 0449 3000+
http://valid.x86-secret.com/show_oc?id=12052

A64 Tweaker Shot
http://home.mchsi.com/~246gts/Pics/A64Tweaker_settings.jpg


Also, from all the testing I've seen, a Tras of 6 is the most efficient setting for the NF4.

[GNU]

For anyone using this guide: Remember, every rig OCs differently from the next, even if the hardware is identical. With this in mind, change each timing individually from the rest using A64 tweaker in Windows. You can then test for stability using Pi or 3DMark once the setting has successfully been established by A64 tweaker. This way if your system has a strange quork (ie can't run Trp of 3 above 250MHz...pretty uncommon in my experience) it can be singled out without going through an unsuccessful post if you were manually setting all the timings at once in the bios. Just something to keep in mind, even for the veterans out there (we all make dumb mistakes.) :D

GNU:
Try using 1.325v + 136% special and the 166MHz RAM divider. Then boot at 260htt or so and see if you can't scale to 290...Seems to me like your mem controller just can't hang at those speeds.

Here is what I run 24/7 with my OCZ PC4400 Hynix and 0449 3000+
http://valid.x86-secret.com/show_oc?id=12052

A64 Tweaker Shot
http://home.mchsi.com/~246gts/Pics/A64Tweaker_settings.jpg


Also, from all the testing I've seen, a Tras of 6 is the most efficient setting for the NF4.

@Gogeta: Thank you for your information. I haven't any problem if i set FSB down to 270/260. It's stable with 1.3v 123% 2.5-3-3-6 but if i set this up to 280 then the system crashes. So i have tried with 4-4-8. At the beginning. I have no problems with many Testprograms but after 4x reboot then the problem began. I can't believe it's my mem controller because it runs 2 days 280 without an error. I will test your suggestion.

[GNU]

So i tested your settings but it's not stable. My system crash while i play a game like Silent Hunter 3 (very high memory and cpu stress). So i see nothing want to run stable NOTHING. Every settings are not stable. I can't believe it. Many users have the same settings 2.5-3-3-6/7/8 or 2.5-4-4-8 but my system want it and crashes. Most settings passes Memtest without any errors but in windows ..... (One times it's prime error, one times it's Memory Analyzer and most of errors ARE IN GAMES! Many BSOD. It's maybe a defect Mobo or bad IRQ?

[fareastgq]

Try Bios 2-17 GNU ;)

[GNU]

Bios 217 is older than 310 what's better in 217?

[Gogeta]

Hmm, could be your mobo but it sounds like the limit of the cpu. I would switch to the 331-3 beta bios and see if things improve. They did for me.

[fareastgq]

Bios 217 is older than 310 what's better in 217?

Well, I've tried them all, and no matter what, 2-17 gives me 0 HD corruption, I can oc like hell and I never worry about it, it's the only bios that lets me run high fsb or tight timings, tccd or utt, 3dmark stable, if the other bios's are not working for you, this is prob the bios for u, you may be in the same situation as me, that's all, every rig is a bit diff, g'luck. As to technically what's differnt, I don't know, heh, ask oscar wu/tictac, someone who mods bios's :p:

[GNU]

Well, I've tried them all, and no matter what, 2-17 gives me 0 HD corruption, I can oc like hell and I never worry about it, it's the only bios that lets me run high fsb or tight timings, tccd or utt, 3dmark stable, if the other bios's are not working for you, this is prob the bios for u, you may be in the same situation as me, that's all, every rig is a bit diff, g'luck. As to technically what's differnt, I don't know, heh, ask oscar wu/tictac, someone who mods bios's :p:

Wow. Then i will test 2-17 and i hope it can stop my crashes about HDD Backup. I give you a short explain of my new problem. I tried to backup big files (3gb) from a IBM IDE HDD to a SATA Seagate HDD. While the transfer my system hangs up. Every time and this problem cames suddenly. I getting more and more and more problems. Ramsettings are not 100% stable see the other posts over me and then it's my HDD.

[neokenzo]

Anything above 260Mhz, I cant use 2.5-3-3-6. Above 260Mhz, I can only 2.5-4-3-6 without any errors. Anyway of getting 2.5-3-3-6 above 260Mhz? Here is my settings at the moment:

Vddr: 2.7v
Tcl: 2.5
Trcd: 4
Tras: 6
Trp: 3
Trc: 9
Trfc: 12
Trrd: 2
Twr: 2
Twtr: 2
Trwt: 2
Tref: 3120
Twcl: 1

Bank int.: Enable
Skew control: 255 +
Drive strength: 7
Data strength: 4
Max. Async: 7ns
Read Preamble: 5ns
Idle Cycle: AUTO
Dyn. Counter: Enable
R/W Bypass: 16x
Bypass Max: 7x
32Bit Gran.: Disable

[GNU]

So i have solved my problems until my HDD problem. I uses 2.5-3-3-8 FSB260x9 LDT 4x @2320Mhz and this runs stable in all Testprograms even in games but i want more Mhz. I can't believe FSB260 is the maximum Clock for my CPU. I hope i can set more FSB stable maybe until 280. Any idea to change my settings?

I don't test Bios 2/17

[S0nic]

GNU: u can't expect too much from a newer 3000+ winnie, maybe try selling it and get a venice..

[kamui]

Hi All,

I have pb with this ram
http://img119.echo.cx/img119/9210/img00383yg.th.jpg (http://img119.echo.cx/my.php?image=img00383yg.jpg)

, it never reachs 8000 Mb/s for Memory Bandwidth
:(


this my rockstable setting ,
[Gskill Sa roxxxxxxxx] :cool: (http://kamui.kenshiro.free.fr/dfi/4.jpg)
http://img165.echo.cx/my.php?image=27nn.jpg

I want to know what is the best setting for this ram, I used DFI NF4-Ultra D Bios 414-3.
my bios setting ,

1 (http://kamui.kenshiro.free.fr/dfi/1.jpg) 2 (http://kamui.kenshiro.free.fr/dfi/2.jpg) 3 (http://kamui.kenshiro.free.fr/dfi/3.jpg)

Thx

Kamui ^^!

[eva2000]

Hi All,

I have pb with this ram
http://img119.echo.cx/img119/9210/img00383yg.th.jpg (http://img119.echo.cx/my.php?image=img00383yg.jpg)

, it never reachs 8000 Mb/s for Memory Bandwidth
:(


this my rockstable setting ,
[Gskill Sa roxxxxxxxx] :cool: (http://kamui.kenshiro.free.fr/dfi/4.jpg)
http://img165.echo.cx/my.php?image=27nn.jpg

I want to know what is the best setting for this ram, I used DFI NF4-Ultra D Bios 414-3.
my bios setting ,

1 (http://kamui.kenshiro.free.fr/dfi/1.jpg) 2 (http://kamui.kenshiro.free.fr/dfi/2.jpg) 3 (http://kamui.kenshiro.free.fr/dfi/3.jpg)

Thx

Kamui ^^!
sandra buffered depends on cpu raw speed too so you probably need at least 9x305mhz 2745mhz to get closer to 8000MB/s

[kamui]

oki thx ;)

[GNU]

GNU: u can't expect too much from a newer 3000+ winnie, maybe try selling it and get a venice..

Is not too much because many 3200+ Winnie owners reached 2600Mhz without any problems. My 3200+ is a product scrap. About Venice. Too expensive. I will wait :(

[S0nic]

Is not too much because many 3200+ Winnie owners reached 2600Mhz without any problems. My 3200+ is a product scrap. About Venice. Too expensive. I will wait :(

older winnies were good overclockers and had better memory controllers, but newer ones are crap, people who reached 2600mhz with their winnies most likely have older ones, venice should be the same price as the current winchesters, so if u can sell the winchester u have for a good price then u can add a bit and get a venice to take full advantage of your RAM/mobo

u could also sell ur 3200+ and get a venice 3000+ which should still overclock a lot further..

[GNU]

older winnies were good overclockers and had better memory controllers, but newer ones are crap, people who reached 2600mhz with their winnies most likely have older ones, venice should be the same price as the current winchesters, so if u can sell the winchester u have for a good price then u can add a bit and get a venice to take full advantage of your RAM/mobo

u could also sell ur 3200+ and get a venice 3000+ which should still overclock a lot further..

Older Winnies are better than newer? Not my CPU. My CPU is stable @2320 but not more. It's the worst OC @Winnie CPU. So i will see what to do.

[S0nic]

Older Winnies are better than newer? Not my CPU. My CPU is stable @2320 but not more. It's the worst OC @Winnie CPU. So i will see what to do.

yup, older are much better. Yours is a new stepping isn't it?

[eva2000]

yeah my 3200+ CBBHD 0445 VPMW

http://www.fileshosts.com/DFI/NF4_SLI_D/results/3200_0445_VPMW/Gskill/PC4400LE/2x512/797_798/LDT3x/9x/278-278-2.5337-1T-12-14-2224-1.44-1.5-1.6-2.8_3072_DS8_DDS2/superpi-32m_tn.jpg

http://www.fileshosts.com/DFI/NF4_SLI_D/results/3200_0445_VPMW/Gskill/PC4400LE/2x512/797_798/LDT3x/9x/278-278-2.5337-1T-12-14-2224-1.44-1.5-1.6-2.8_3072_DS8_DDS2/3dmark/3dmark2003_425-1100_22181_tn.jpg

[GNU]

yup, older are much better. Yours is a new stepping isn't it?

I don't know. It's a hard work to remove my XP120 etc... but i believe yes it's a newer CPU :(

[kakaroto]

CBBHD has the best memorycontrollers, according to user experiences.

Tommorow I will obtain a A64 3500+ Clawhammer, I will test how those memorycontrolers react with G.skill. I hope they will be the same as FX cores.

[S0nic]

CBBHD has the best memorycontrollers, according to user experiences.

Tommorow I will obtain a A64 3500+ Clawhammer, I will test how those memorycontrolers react with G.skill. I hope they will be the same as FX cores.

I think memory controllers on clawhammers are better than winchesters on average, but the chips are still not guranteed to hit high mhz although they do average higher than newer winnies..
btw my 0504 MPMW's mem controller goes up to DDR600 no problems and I bet I can get higher, but I can't get the chip stable at high mhz, 300 x 8 is no problem, but 300 x 9 is not fully stable..

[Huhn]

got a problem here with windows stability.
system is as followed:
amd xp3500 winchester
2x512mb adata pc566 tccd
dfi lanparty sli-d
tagan 480 watt

k the memory runs flawlessly memtest86 with 2,5-3-3-5 @ 2,7v :woot: . i used the memtest supplied by the dfi bios.
but when it comes to booting into windows everything fails. i cant even boot into windows with 250mhz and multiplier of 10. i ran that cpu with 2730mhz already, so this cant be the problem. i raised cpu voltag/chip voltage/ldt voltage, but nothing helped.is there any biosoption i could try?

[S0nic]

got a problem here with windows stability.
system is as followed:
amd xp3500 winchester
2x512mb adata pc566 tccd
dfi lanparty sli-d
tagan 480 watt

k the memory runs flawlessly memtest86 with 2,5-3-3-5 @ 2,7v :woot: . i used the memtest supplied by the dfi bios.
but when it comes to booting into windows everything fails. i cant even boot into windows with 250mhz and multiplier of 10. i ran that cpu with 2730mhz already, so this cant be the problem. i raised cpu voltag/chip voltage/ldt voltage, but nothing helped.is there any biosoption i could try?

same problem I have, no solution yet, I guess we just got bad cpu's..
was your 2730 overclock stable? because I can get into windows at 2750 and even run SuperPi 1M, but that's it..

[PlatoonSgtElias]

I personally thank the creator of this thread alot! Before
260x10 and over that SuperPI fail.
Now 300x8 SuperPI stable :D

[kakaroto]

I personally thank the creator of this thread alot! Before
260x10 and over that SuperPI fail.
Now 300x8 SuperPI stable :D

no thanks ;)

[mustrum]

Thank you so much!!
I bought Geil Ultra X TCCD's second hand and i knew that they did DDR600 on the DFI and on a MSI K8N Noe2 allready.
I was about to sell them again since i couldn't get them stable even at 285 -2.5-4-4-8. I tried all available bios's and settings but no way to get it stable. Once i made it stable in memtest86+ and windows memtests but once i fired up Guildwars it craqshed to the desktop. (Guild Wars seems to be the ultimate program to test memory stability at least on my system.)

After reading this guide i started gto mess around with the less common settings in A64 tweaker and now it's stable at 285 2.5-4-3-6. That's good enough for me and i am very happy. My CPU and the memory could do more but my crappy board craps out above 285HTT. :brick:

Edit: One question i still have though: How do i get A64 tweaker to set it everytime i boot. I used "enable at startup" but it doesn't work.

[Enigma422]

Very good guide. Helped me reach my goal of DDR600 with my 'LD' GSkill memory. Currently running at 300MHz x 4 = 1200MHz HTT on my 3500+ Clawhammer and all seems good. Not time to start messing with my CPU speed :)

[higherøx]

I need your help!

System:
A64 3000+ CBBID 0508
DFI LP UT nF4 Ultra-D bios 310P
1Gb G.skill PC4800LA Samsung 440 Brainpower 808
Seventeam ST-420BKV ATX2.0 (all molex are pluged)

The only way I could pass the 5th test of memtest86 is:

http://img89.echo.cx/img89/9189/imagem4od.jpg

Anything different doesn't work...

But, with this config, it passed memtest86 #5 and OCCT, I used my PC 30 minutes and it was ok... but IT CAN'T EVEN complete the SuperPI 1mb :confused:

Please help me :(

[higherøx]

Oh...
I tried to pass SuperPI 1Mb and now it did it :cool:
My CPU is stock (1.8GHz), 6x300 and the LDT 3x300
What crazy system :cool:

[kakaroto]

Please update to the new bios 414-1 from Oskar Wu.

Then set Drive strength to 7 and Data strength to 2.
For 100% stability make sure you run min. one hour memtest 86++ test5 and the standard tests.

[higherøx]

Please update to the new bios 414-1 from Oskar Wu.

Then set Drive strength to 7 and Data strength to 2.
For 100% stability make sure you run min. one hour memtest 86++ test5 and the standard tests.

Can I update it to 414-2? Usually give better results with TCCD than 414-1.

[kakaroto]

Can I update it to 414-2? Usually give better results with TCCD than 414-1.

Sure you can :) I haven't tested it yet, only 414-1 and 3. Version 3 gave me very unstable system.

[higherøx]

Sure you can :) I haven't tested it yet, only 414-1 and 3. Version 3 gave me very unstable system.
Ok.. I will test it now :D

If you can, please help me here, too:
http://www.xtremesystems.org/forums/showthread.php?t=61751

Thank you :)

[higherøx]

I tested and 414-1 just gave me WORSE results!

I don't know what more to do... I'd like 300 2.5 3-3-6 1T or ~315 2.5 4-3-7 1T :(

My SuperPI sometimes does not work, shows errors (even when my pc is stock/100% stable)... What do you think it is?

Please, help...

[kakaroto]

I tested and 414-1 just gave me WORSE results!

I don't know what more to do... I'd like 300 2.5 3-3-6 1T or ~315 2.5 4-3-7 1T :(

My SuperPI sometimes does not work, shows errors... What do you think it is?

Please, help...

Its very simple: its the CPU or/and the memory.
2.4GHz is about the max for a common CBBID winchester. CBBID's are not good overclockers. The memorycontroller sucks most of the time too..so..

If SuperPI still fails also at stock speeds, then the memory can be faulty. It depends what kind of errors you get. "Not equal things..."

HTT can be the problem also, at 300Mhz you may consider rize some voltage. I use 1.3/1.6v at 300Mhz HTT. Try it yourself. Experiment, you learn from your problems. good luck.

[higherøx]

Ok thanks.
I will try to sell it and buy a Venice / Winchester CBBHD

Where did you found PC4800FF?

[[timko]]

Where did you found PC4800FF?

He doesn't have to find it, he works for G.Skill :)

[higherøx]

']He doesn't have to find it, he works for G.Skill :)Oh... ok :)

PS.: I wrote wrong, the correct is "Where did you find it" and NOT "Where did you found it" :D LOL :D :D

Thanks

PS.: When will it be disponible at newegg?

[higherøx]

New results:

DDR620 2.5 4-3-5 1T 2.9v

http://img126.echo.cx/img126/3226/dsc042962tp.th.jpg (http://img126.echo.cx/my.php?image=dsc042962tp.jpg)

2400MHz + DDR600 2.5 4-3-5 1T 2.8v

OCCT: http://server2.uploadit.org/files/higherox2-imagem.JPG

F0ckin' A64 CBBID, holy :banana::banana::banana::banana: for overclocking, 2400MHz with 1.66v :(

Can I use 2.9v daily (around real 2.99v) with no problems (sudden death or lose warranty for example) in my TCCD?

Thanks

PS.: Like I said I am just learning English, you'll find so MANY errors :D Sorry

[kakaroto]

New results:

DDR620 2.5 4-3-5 1T 2.9v

http://img126.echo.cx/img126/3226/dsc042962tp.th.jpg (http://img126.echo.cx/my.php?image=dsc042962tp.jpg)

2400MHz + DDR600 2.5 4-3-5 1T 2.8v

OCCT: http://server2.uploadit.org/files/higherox2-imagem.JPG

F0ckin' A64 CBBID, holy :banana::banana::banana::banana: for overclocking, 2400MHz with 1.66v :(

Can I use 2.9v daily (around real 2.99v) with no problems (sudden death or lose warranty for example) in my TCCD?

Thanks

PS.: Like I said I am just learning English, you'll find so MANY errors :D Sorry

Very nice result :) for a CBBID is pretty awesome :D
2.9v is no problemo for TCCD. Make sure you put a little airflow trough the memory. (e.g. 80mm fan)

[xavicl]

how can u put a fan to the memory? i dont know how to put the fan :(

[[timko]]

^^^ This is one method...

http://www.xtremesystems.org/forums/showpost.php?p=680991&postcount=57

[TEDY]

playing with APACER PC4000 TCCD 256modules

300*9

http://img127.echo.cx/img127/4159/apacerddr60018xg.th.jpg (http://img127.echo.cx/my.php?image=apacerddr60018xg.jpg)

http://img127.echo.cx/img127/1604/apacerddr6008ti.th.jpg (http://img127.echo.cx/my.php?image=apacerddr6008ti.jpg)

[higherøx]

Very nice result :) for a CBBID is pretty awesome :D
2.9v is no problemo for TCCD. Make sure you put a little airflow trough the memory. (e.g. 80mm fan)
Thank you!
My Venice 3000+ will come tomorrow or "the day after tomorrow" (I don't know how to write it ehaie :D) and then I will test it!

Do you have any idea to get 315 FSB with these G.Skills?

[kakaroto]

Thank you!
My Venice 3000+ will come tomorrow or "the day after tomorrow" (I don't know how to write it ehaie :D) and then I will test it!

Do you have any idea to get 315 FSB with these G.Skills?

315MHz is possible, it depends on your board and memorycontroller.
With some descent gskill 315MHz is possible with 2.5-4-4-8 or 2.5-4-3-8 1T timings.
Let us know what the results are with your future CPU.

My highest is now 300MHz 2.5-3-3-6 1T for 24/7 stability use with 1GB FF.

[higherøx]

315MHz is possible, it depends on your board and memorycontroller.
With some descent gskill 315MHz is possible with 2.5-4-4-8 or 2.5-4-3-8 1T timings.
Let us know what the results are with your future CPU.

My highest is now 300MHz 2.5-3-3-6 1T for 24/7 stability use with 1GB FF.
Thank you
I'm with problems with my Venice, it doesn't do 2.4GHz stock voltage (it's not normal... isn't it?)

But I'm using 310P Bios, do you think I should try any other bios? The problem is that 310P is the bios that works fine with my G.Skill :(

Any suggestions?

[kakaroto]

Thank you
I'm with problems with my Venice, it doesn't do 2.4GHz stock voltage (it's not normal... isn't it?)

But I'm using 310P Bios, do you think I should try any other bios? The problem is that 310P is the bios that works fine with my G.Skill :(

Any suggestions?

Flash the newest bios please... www.dfi.com.tw These have support for Venice and Sandiego processors.
I use the 414-1 bios, 414-2 works fine too. This BIOS support the VENICE and SAN DIEGO.

[higherøx]

I'm using 414-3

:(

[kakaroto]

Their is a new bios available 510. This one is again available in three flavours.

The best for TCCD is 510-2 with 3.16 Ramtable with memory in the orange banks.
For TCCD set Dram response at FAST.

I also find out that test 8 is better and more accurate on errors then test 5.

http://xtremesystems.org/forums/attachment.php?attachmentid=30495&stc=1

When test 5 is stable, also test with #8. The errors will shown on screen directly during the test, not after a pass.

[PicaXuu]

kakaroto can you please post your mem settings ?
I have the same ones and some difficulties to get them fully stable at DDR600 2,5-3-3-7...

And you think 510-2 is the best for my mems ?
I'm using 510-3 and I think it's great...

[kakaroto]

kakaroto can you please post your mem settings ?
I have the same ones and some difficulties to get them fully stable at DDR600 2,5-3-3-7...

And you think 510-2 is the best for my mems ?
I'm using 510-3 and I think it's great...

Have you tried my settings from the guide?

Here are the PC4800 FF settings:

http://xtremesystems.org/forums/attachment.php?attachmentid=30496&stc=1

Try differrent voltages, 2.6 - 2,66v - 2.7v - 2.77v - 2.8v then find the max stable memtest test5 & 8 run.

Also play with the the Drive strength en data, I used Drive strength 8 and data strength 2.

[PicaXuu]

I've already tried those settings but can't pass test 8 of Memtest even at DDR590 neither DDR600...

Here are my exact bios settings with bios 510-3:

http://www.cyclopnet.pt/~nsl69249/bios1.jpg

http://www.cyclopnet.pt/~nsl69249/bios2.jpg

Can you help me please ?

[kakaroto]

I've already tried those settings but can't pass test 8 of Memtest even at DDR590 neither DDR600...

Here are my exact bios settings with bios 510-3:

http://www.cyclopnet.pt/~nsl69249/bios1.jpg[/IMG]

http://www.cyclopnet.pt/~nsl69249/bios2.jpg[/IMG]

Can you help me please ?

You can change the read preamble to 5ns, and tref to 100MHz 1.95us in A64tweaker. I don't know the exact Tref setting in the bios..forgot it.

Try rise the Drive strength.

EDIT: I see you use 510-3. Try 510-2 and use the orange banks in case you didn't :)


Have you tried all voltages?

[PicaXuu]

Thanks for your help kakaroto !

I've just set DRAM Drive Strength to 7 and now everything is OK !
Rock stable DDR600 2,5-3-3-6 @ 2,6v !

I'm already using orange banks,
I think it's not necessary to try 510-2, what do you think ?

My San Diego 3700+ Rock Stable at 9x290 1:1 2,5-3-3-5

[arctic-k20]

1.95 100mhz = 3684 in bios

[kakaroto]

Thanks for your help kakaroto !

I've just set DRAM Drive Strength to 7 and now everything is OK !
Rock stable DDR600 2,5-3-3-6 @ 2,6v !

I'm already using orange banks,
I think it's not necessary to try 510-2, what do you think ?

My San Diego 3700+ Rock Stable at 9x290 1:1 2,5-3-3-5

Glad to hear my help works :) have fun.

Is that 32M pi stable?

Thnx artic-k20 :)

[higherøx]

Where can I find 510-2 for download?

thanks

[Transonic]

Where can I find 510-2 for download?

thanks
Here (http://www.dfi-street.com/forum/showpost.php?p=109132&postcount=1).

[PicaXuu]

Yep kakaroto Pi 32M rock stable !!! :)

[kakaroto]

Yep kakaroto Pi 32M rock stable !!! :)

Great!! I cannot do 32M fully with my Clawhammer 3500+.. Hopefully with a better controller on the 3700+ SD :)

Good job! :toast:

[higherøx]

Here (http://www.dfi-street.com/forum/showpost.php?p=109132&postcount=1).
Thank you very much man :)

[higherøx]

Now with 510-2

A64 Venice 3000+ @ 2.4GHz 300x8 1.525v :(
1Gb G.Skill PC4800LA @ DDR600 2.5 4-3-5 1T 2.8v

I tested my system in Memory Bandwidth Benchmark (SiSoft Sandra) and I get only 6680/6628 in the 1st. run and 6686/6620 in the 2nd. run.

It's terrible... isn't it?

What could I change? What setting is the problematic setting?

http://img237.echo.cx/img237/5977/imagem1rd.jpg

My Venice is REALLY a bad overclocker.
What voltage can I put in LDT and Chipset with no chance of getting any problems?

Thanks

[higherøx]

510-2 gave me so much better results
I could get the same results, but with more agressive settings and less 0.1v, going from 2.8v to 2.7v.
With other bios I couldn't pass memtest stable with 315FSB even with 2.9v, with 510-2, I almost passed this goal with 2.8v, but I got 2 errors in memtest #5, can you help me?
I'd like so much using 315FSB with 2.8v, because I'm not sure if I could use 2.9v daily.

Settings for 300 FSB 2.7v:
http://img246.echo.cx/img246/3321/dsc044726hh.jpg
http://img246.echo.cx/img246/8726/dsc044692gx.jpg
http://img246.echo.cx/img246/1045/dsc044702oo.jpg

When I got 2 errors in memtest86 315FSB 2.8v, the settings were (in order):
2.5
04
06 (05, 07 and 08 = worse)
03
14
16
03 (or 02-02-02-02 was the same)
03 (or 02-02-02-02 was the same)
02 (or 02-02-02-02 was the same)
03 (or 02-02-02-02 was the same)
3072 (4708 always were better, but with this bios it isn't)
01 Bus Clock (better than Auto)
Enabled

Auto
0 (255+ = worse)
Level 7
Level 2
8ns (9ns = worse)
Fast
5ns (Auto = worse)
256Cycles
Enable
16x (8x was worse/the same)
07x
Disable



Pleae help me!! I'd like 315 FSB 2.5 4-3 :)

[]'s

[ante_ante]

Anyone with Ocz PC3200 Rev2 memorys who using 510-x ? I need a good setup and should i use Tref 3072 also? Have a DFI NF4 Ultra-D and a SD 3700+

[jikdoc]

@kakaroto,

i read in a post by ocz tony that running a system under phase increases the drive strength so that you need to lower it in order to overclock well. have you noticed this with tccd? i'm running gskill LE @ 287 2.5-4-3-7 on SD now. 2.5-3-3-7 won't go at 275 and above

[kakaroto]

@kakaroto,

i read in a post by ocz tony that running a system under phase increases the drive strength so that you need to lower it in order to overclock well. have you noticed this with tccd? i'm running gskill LE @ 287 2.5-4-3-7 on SD now. 2.5-3-3-7 won't go at 275 and above

Uhm no. I also have a LS but the TCCD results on air and Phase are here the quiet the same.

When Timings are tighter then stronger drive strength come handy.
When looser the timings then you can try lowering the drive strength.

Remember, when upping the drive strength you may lower the Vddr to make it stable.

With TCCD I always use drive strength 7 and data strength 2 with Vddr 2.7v. With BH5/UTT I use 7/8 and 1/2 (depend on your ram test results)

[XiN]

So 510-2 (with 3.16 ram table) is better for TCCD?

Anyway, at the moment my best is DDR630 7-4-4-2.5 spi 32M stable (with 2.9V and bios 510-3) :)

PS: with a CBBID :fact: :hehe:

[higherøx]

So 510-2 (with 3.16 ram table) is better for TCCD?

Anyway, at the moment my best is DDR630 7-4-4-2.5 spi 32M stable (with 2.9V and bios 510-3) :)

PS: with a CBBID :fact: :hehe:Good question that I want to know, too.

I don't know if I use 510-1, 510-2 or 510-3. G.Skill 4800LA.

I heard that 510-2 is better for UTT, but I'm not sure.

Thanks, []'s

[Transonic]

Good question that I want to know, too.

I don't know if I use 510-1, 510-2 or 510-3. G.Skill 4800LA.

I heard that 510-2 is better for UTT, but I'm not sure.

Thanks, []'s
510-2 is suppose to be for UTT/BH-5 (510-1=TCCD, 510-3=everything) but I've seen several people use it with TCCD also. Personally I didn't notice anything even though 510-2 let's you use both the orange or yellow slots for dual channel. I had to go back to 310p for it to OC stable.

[higherøx]

So, I have TCCD I think I'd use 510-1... hummm

[XiN]

Isn't 510-1 generic and 510-3 for TCCD? Uhm ... just little confused :D

Anyway, I'll try 510-2 too ;)

[kakaroto]

Isn't 510-1 generic and 510-3 for TCCD? Uhm ... just little confused :D

Anyway, I'll try 510-2 too ;)

nope, with 510-3 you can use orange and yellow slots because this bios is two memory table compatible.

For UTT/BH5 the best bios is 510-2 and TCCD/TCC5 best is 510-1.

[XiN]

nope, with 510-3 you can use orange and yellow slots because this bios is two memory table compatible.

For UTT/BH5 the best bios is 510-2 and TCCD/TCC5 best is 510-1.
Ok, thx :)

So this http://www.techpowerup.com/articles/other/114 is wrong ...

(* -1 for both kinds of rams, -3 for TCCD etc., -2 for BH5/CH5 etc.)

[higherøx]

I just can't get my G.Skills stable at 300 2.5 4-3-6 with 2.6v :(

[Murdock_TF]

Hi everybody here,

I'm new in this forums, i watch you a long time and now i said; i must join the community :banana:

My Problem is the following:

Systems Specs.:
DFI NF4 Ultra
1GB OCZ Platinum Ed. Rev. 2 with Samsung TCCD 440 Chips on it
Athlon 64 3200 Winchester
X800XTPE

I wanna get 300Mhz @ 2,5-3-3-6 stable, but i can't get it. I tested a lot of confÃ:banana:gurations but nothing bring 300Mhz fully stable @ 2,5-3-3-5. FarCry chrashes after 15Min. but Memtest did 30Min. without errors.

Here are my setting in Bios:

http://tobias.ownagi.com/mem1.jpg
http://tobias.ownagi.com/mem2.jpg
http://tobias.ownagi.com/mem3.jpg

can someone tell me what i should change, but i didn't want to change TRCD to 4 :D

[xavicl]

These memories cant do 300 at 2.5-3-3-5 , i can only do 278 or so. And 305 at 2.5-4-3-7 (2.9V)

[higherøx]

Agreed.
My G.Skill's Samsung 440 just CAN'T run at 2.5 3-3.
And it was not easy to reach the total stability at 2.5 4-3-6 1T 2.7v.

[Transonic]

can someone tell me what i should change, but i didn't want to change TRCD to 4 :D
Well it's kinda like they said ^ it's hard enough to get G. Skill to do 2.5-3-3 @ 300 let alone Platinum Rev.2, try 2.5-4-4 instead. I spent the better part of yesterday morning trying to get 290 & 300 FSB to pass memtest and I got pretty damn close with these settings while at 2.5-3-3-7 but 2.5-4-4-7 was what got me to pass:

Genie:
290-300 FSB
3x HTT
9x Multi (10x hasn't worked for me yet)
1.55v Startup
1.4v
113%
1.3v LDT
1.7v NB
2.8v RAM (little or no errors compared to 2.7v in memtest, 2.9 showed no improvement)

DRAM Config:
200 1:1
2.5
4
7
4
10
14
2
2
2
2
1032 (4708 was a close 2nd best, I tried just about all of them)
1
enabled
increase skew (auto & 0 gave me a bunch of errors)
255 (tried 200, 100, 50, the lower the # the more the errors)
Level 7
Level 2
8ns (slightly more stable than 7ns)
5ns
256 cycles (everything stock from here down)
disabled
16x
7x
disabled

I'm chillin at 260x10 atm cuz it's rock solid without distortion on my screen. I'm gonna RMA my graphics card probably this week which, according to BFG, should clear up the crap on the screen. If that doesn't work then my CPU is next. I'm also gonna try to flash my bios again now that I got some good/stable settings to try. Currently I'm running the 310p bios. Hope this helps.

[higherøx]

1.55v Startup
1.4v
113%
Why?

I ever used 1.4v at startup that's my default, I did it wrong? :(

Thanks

[Transonic]

Why?

I ever used 1.4v at startup that's my default, I did it wrong? :(

Thanks
Well that didn't really make much of a difference for me, I was kinda emphasizing on the DRAM configuration settings/timings rather than voltages.

[higherøx]

Which gives the better performance for TCCD, Skew Value 255+ or 0 "Auto"?

And which of them give better stability?

T H A N K S

[kakaroto]

Which gives the better performance for TCCD, Skew Value 255+ or 0 "Auto"?

And which of them give better stability?

T H A N K S

I can explain to you, but OPB has a much more and clearer article about DQS. :)

http://www.xtremesystems.org/forums/showthread.php?t=57925&highlight=DQS

[higherøx]

Thanks :)
Other thing that's interesting is that trrd, twr, twtr and trwt were running here at 02-02-01-02, I just couldn't pass SuperPI 32Mb, then I put 03-02-02-03 and I didn't lose much performance but reach the stability.
Data strength for TCCD: I know that Level 1 and 3 are more stable, and 2 is better for UTT and BH series. But here Level 2 gave me stability. But what is FASTER for TCCD, Level 1 or Level 3?

Thank you

[kakaroto]

Start post is updated with San-diego memory stability tweaks :)

If anyone has more findings about the Venice and/or San-diego please share here. thank you!

[Cornelious0_0]

Hmm, I guess I'll get going and try out 510-2...seeing as never bothered, seeing that it was sposed to be "for" BH5/UTT.

[Radical_53]

Great guide! Thanks alot for that.

Before I got my OCZ to ~275MHz 2.5-3-3-7 with 2.73V, now it'll do 285MHz 2.5-3-3-6 or even 290MHz, the latter with 2.83V.
Still I'm not able to get to 300, but maybe that has some other reason, who knows? ;)
Using bios 510-2 right now by the way.

[higherøx]

Use 3.3v line when DRAM is not 3.2v... what it changes?

Thanks

[Crosis]

For some time I stopped o/c cause of time. Now I've tried 5xx-3 bios and using the same settings as in 310P I couldn't load the windows. I must tried lower alphas (trc, trfc and max. async) to load windows. It's normally?

[J-Mag]

kakaroto: Hey thanks for the great read! However, I am curious. Would you change the drive strength values if your TCCD seemed to respond better to 3.1v?

[Cornelious0_0]

kakaroto: Hey thanks for the great read! However, I am curious. Would you change the drive strength values if your TCCD seemed to respond better to 3.1v?

Good idea, I'm not sure either....can't remember if I actually saw any gains out of my ram at higher then 2.9v....but it'd be nice to know what i should be changing, if anything...if I end up crankin' 'er a little higher then 2.9 at all.

[kakaroto]

kakaroto: Hey thanks for the great read! However, I am curious. Would you change the drive strength values if your TCCD seemed to respond better to 3.1v?

With my test TCCD loves high drive strength. My LA's respond very well to high voltages and drive strength to (8).

[Cornelious0_0]

With my test TCCD loves high drive strength. My LA's respond very well to high voltages and drive strength to (8).

Maybe I'll bump my Drive Str to 8 and see what my 2x256MB 4400LE 431 does with some more powa. ;)

[TekXoID]

Use 3.3v line when DRAM is not 3.2v... what it changes?

ThanksChanges the .0X voltage of vDIMM up .03-05v depending on PSU.

I find this u