Problem with overclocking my Venice 3000+ [Archive]

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BIG_DEADy

05-31-2005, 12:24 AM

I have a problem to overclock my Venice 3000+ to 2,7 GHz. With my old RAM (Adata Vitesta PC4000 2x512MB) I can run 300HTT x 9 @ 1,58V and the memory are running with 250 MHz @ 2,5-3-3-5 @ 2,8V. I changed the RAM to 2 Corsairs 512MB modules (XMS-PC3200C2 Rev1.5 (2-2-2-5-1T) --chip--> Winbond New BH-5 ~ Brainpower PCB).

1:1 I can run up to 240 MHz @ 3,2V @ 1,5-2-2-5 1T Timings, so I think the RAM is fine and sweet (in a week I will test with more than 3,2V). At this frequenz the RAM is primestable and running very fast. After this I wanted back my old frequenz of my CPU, so I set the HTT to 290 and the ram dividier to 166 (for the first time, so I'm sure the RAM isn't the problem). I raised the CPU voltage up to 1,62V and the HTT multi down to 3 like my old settings. But then my PC won't boot into windows, every time I get a bluescreen (for short time I see the Windows logon). The bluescreen says: PCN_LIST_CORRUPT

So I increased all voltages a little bit: Chipset to 1,6; HTT to 1,3V; CPU to 1,65V --> o way, still bluescreens. Only the RAM voltage I can't increase, because then I have to strip down my system to set the jumper for higher voltages (DFI nf4 SLI-DR).

Have anyone an idea, why I get bluescreens? The time before my new RAMs the CPU also still running good, why not now? At the moment I run 267 HTT x 9 (~2,4 GHz @ 1,58V, not tested with lower voltage) and RAM dividier 180 (~240 MHz RAM @ 1,5-2-2-5 1T @ 3,2V) and my machine is primestable. I hope someone know something about that.

Sorry 4 my bad English (I love to say it :D )

TekXoID

05-31-2005, 12:39 AM

BIG_DEADy

05-31-2005, 05:06 AM

Pull one of the sticks. I had the same problem until I did. Venice can't handle
more than two double-sided modules when overclocked, in my experience, over 265MHz.

j/w, Why do you have to "strip down your system" to change the VDIMM jumper?

It's like...right there.

http://img18.echo.cx/img18/5794/imga03124dt.jpg

You missunderstand me. With the right dividier the RAM won't run over 240 MHz, so the CPU should make it. Also my friend runs 2 Twinmos Winbond Speed Premium 512MB sticks @ 255 @ 2-2-2-5 with a Venice. This modules and also my old Adata PC4000 are double sided. My aim is to run the CPU @ 300HTT x 9 and the RAM with 166/200 (should give about 250 MHz). I hope I will reach it.

And at last a pic of my crappy pc case:

a small chieftec bigtower (new casecon already in work)

http://www.8ung.at/veb_big_daddy/aktuell.jpg

This should explain why i have to "strip down my system" when I want to jumper the board!

BadlyDrawnBoy

05-31-2005, 09:46 AM

I get bluescreens when I use those dividers(3:4, 5:6). Only 9:10 seems to be working for me.

BIG_DEADy

05-31-2005, 10:15 AM

I get bluescreens when I use those dividers(3:4, 5:6). Only 9:10 seems to be working for me.

Same thing! I just tested some other dividiers (166/200 ; 150/200 ; 133/200) and no one will boot into windows when cpu frequency is at 2,7 GHz. After before testing the checksum of bios he will hang and reboot. No way! :confused:

200/200 still working fine, in this mode I tested my RAMs. 180/200 works fine, too. Seems I will test the maximum of my BH5. Now I need 270 MHz RAM frequency to get 2,7GHz. I think this is unreachenable. :(

I think 260 with 3,5V is the end of the RAM with 1,5-2-2-5 timings. All other is just luck.

TekXoID

05-31-2005, 04:07 PM

You missunderstand me. With the right dividier the RAM won't run over 240 MHz, so the CPU should make it. Also my friend runs 2 Twinmos Winbond Speed Premium 512MB sticks @ 255 @ 2-2-2-5 with a Venice. This modules and also my old Adata PC4000 are double sided. My aim is to run the CPU @ 300HTT x 9 and the RAM with 166/200 (should give about 250 MHz). I hope I will reach it.

And at last a pic of my crappy pc case:

a small chieftec bigtower (new casecon already in work)

This should explain why i have to "strip down my system" when I want to jumper the board!
Right, he runs 1GB, but only at 255MHz. I wall at 265MHz when using a full GB (both sticks), which
is a mere 2.385GHz. But no wall is even reached until 312MHz when using 1:1 with a single stick.
Dividers will get me to 2.9GHz with both ram's, but that can't nearly compare to 1:1 performance @ 2.8GHz

Don't take my word for it, if your RAM is double sided, pull one stick, leaving one
in DIMM2, and see how far you can go for yourself. It's at least worth a try. :)

Of course, this probably has more of an effect on TCCD users like me, but it certainly "Loosens the leash" without any
performance impact (other than the lower amount of total RAM) and you should be able to get more out of your BH-5.
Personally I found the limits of my old 2x256MB Mushkin LvL II to be 272MHz @ 3.4v @ 2-2-2-5, but that was with a winnie 3500+.

BH-5 = Loves maximum drive strength.
TCCD = Weaker drive strength the better.

astaris

05-31-2005, 11:26 PM

Same thing! I just tested some other dividiers (166/200 ; 150/200 ; 133/200) and no one will boot into windows when cpu frequency is at 2,7 GHz. After before testing the checksum of bios he will hang and reboot. No way!
BIG_DEADy when i use these dividers (i'm on 150 now) on this board i need to set all dram paremeters (from tcl to twcl) manually in the bios, none left on auto. Also i set async latency to 8 and preamble to 6. Try this, it works for me.
Sorry, my signature is 2 year old...i'm too lazy atm :p:

BIG_DEADy

06-01-2005, 01:17 AM

@ TekXoID

The problem is that I can't run 2,7 GHz with the same CPU before I changed the memory. That's the problem, not that the memory can't clock more (but I'm sure it can). So why I can't run 290 HTT x 9 (~2,6 GHz @ 1,6V) and the memory with a divider of 5:6 which should give me 240 MHz to the memory? It can't be the memory, because now I run 267 HTT x 9 and memory divider 9:10 (~240 MHz). I know my CPU does the 2,7 GHz but NOW I won't be able to run it at this frequency. It looks like a problem with the dividers (1:1 and 9:10 works fine). Something other must be changed. Btw I have the Hellfire modded BIOS on the DFI nf4 SLI-DR.

@ astaris

No setting is on auto. Mainly I used this settings:
Winbond UTT settings (http://www.athlon64power.com/utt/UTT.txt)
But it seems just 1:1 and 9:10 is stable, but these two dividers are to low because I wan't my 2,7 GHz CPU frequency back :stick: . Also 133:200 won't work, the CPU just hangs up after the post screen. Very strange. So the only thing I can do is to get a higher voltage on the memory and try to run 260 MHz or 270 MHz with a divider of 9:10 to get my 2,7 GHz. But for this I have to need more time (maybe the weekend).

BTW thank you two for helping me! :toast:

Jimbo Mahoney

06-01-2005, 02:37 AM

Are you using Windows XP SP2?

Try this:

Edit the boot.ini file (It's on the root of C:) and change this:

/noexecute=OptIn

to this:

/noexecute=AlwaysOff

This will disabled the DEP feature of the chip in SP2. SP1 and Win2k don't have this feature.

For me, I had MAJOR problems getting above 290 - 300 HTT on my Venice 3000 in SP2. In Win2k and XP SP1, I could get upto 324. In SP2, it would just NOT boot windows (hang and reset after the CMOS Checksum thingy).

This was the problem.

Let me know if it helps!

BIG_DEADy

06-01-2005, 03:20 AM

Yes, I have WinXP SP2! I will try it.

BIG_DEADy

06-01-2005, 03:47 AM

It doesn't work. I wonder why my CPU now lock up after getting higher than 2400 MHz. Anyone an idea? I thought it was the divider of the memory, but now I'm running 300HTT x 8 (2,4 GHz @ 1,426V) and memory 166:200 (CPU-Z says 240 MHz @ 1,5-2-2-5 1T @ 3,2V). What the fuc*** hell is going on here? All multipliers over 8 will cause an bluescreen or an lock up after cmos checksum crap. Why my CPU running with my old Memory with 2,7 GHz? Should I buy new memory or a new CPU? I don't understand it, I thought the Corsair 2x512MB TwinX 3200C2 Rev1.5 is fine memory. It's really annoying.

BIG_DEADy

06-01-2005, 04:02 AM

Here are two screens:

Venice 3000+ with Adata Vitesta PC4000 (http://www.8ung.at/veb_big_daddy/venice.jpg)
Venice 3000+ (same CPU) with Corsair PC3200C2 BH5 "BP" PCB (http://www.8ung.at/veb_big_daddy/VeniceBH5.JPG)

I'm going to be crazy! :nuts:

astaris

06-01-2005, 06:03 AM

BIG_DEADy the only difference between adata and corsair are the memory timings. Maybe to get the cpu frequency higher you have to adjust some memory settings. I suggest to make these changes:
tras=7;
trc=10;
dram drive strength=8;
dram drive data sterngth=1.
These are the setting that i use for my system (dfi nf4 + venice 3000 + twinmos sp bh5).
Also try tref=4128.

BIG_DEADy

06-01-2005, 06:32 AM

I will test it tomorrow, now I have to learn for my final test which is tomorrow! *g*

But is it possible that the memory controller of the venice can't handle BH5 RAMs? This would be the only logical answer why my CPU can't go so high.

@ astaris

Do you have the complete timings? When I all left on auto it also can't boot into windows. Maybe you have different settings than I. Please tell me.

BTW: I tested the two other RAM slots (orange one) -> no change
Then I changed the bios from the modded hellfire to the beta 510-2. -> no change

astaris

06-01-2005, 11:14 AM

BIG_DEADy

06-02-2005, 05:40 AM

Here we go:
CPC -> Enable
tCL=2
tRCD=2
tRAS=7
tRP=2
tRC=10
tRFC=16
tRRD=2
tWR=3
tWTR=2
tRTW=2
tREF=3120
tWCL=1
Bank Interleave -> Enable
DQS Skew Control -> Auto
DQS Skew Value=0
DRAM Drive Strength=8
DRAM Data Drive Strength=1
Max Async Latency=8
Read Preamble Time=6
Idle Cycle Limit=256
Dynamic Counter -> Disable
R/W Queue Bypass=16
Bypass Max=7
32 Byte Granulation -> Disable
I'm running 289*9 with 3/4 (150) divider with a ddr frequency
of 217 Mhz@3v. For the tref setting i suggest to use this formula:
tref_f=15.8*(ddr Frequency)
Then, in the bios, choose the nearest lower value.

:woot:

Thank you very much, my CPU is running now very fine :D ! 2,7 GHz and memory now with 225 MHz and your settings. Tomorrow I will get my new watercooling stuff and then I can jumper the mobo.

But I did a mistake. Here are the mistakes:

Tras = 2
Trp = 5

Now I see that I've been mixed up these 2 values but now all running fast! I'm so happy and my oraly exam was also good! :D

I've got 11 points in geography which should be in England or USA a B! :fact: