Core i7/X58 Overclocking Thread

Okay here we go 4.0Ghz on air 1 hour prime stable took some real work but I think I got it now...

Attachment 89646

I am in a bit of a hurry but I will post my bios settings on an update to this post in a little bit but I am shocked that this board runs this well it's awesome on all levels...

I am running the Gigabyte with the 920 and Patriot 1600 cas9

http://i286.photobucket.com/albums/l...t/DSC00185.jpg
http://i286.photobucket.com/albums/l...t/DSC00187.jpg
http://i286.photobucket.com/albums/l...t/DSC00189.jpg
http://i286.photobucket.com/albums/l...t/DSC00188.jpg


Hope this helps I am calling this 100% stable but I gotta prime for hours to be sure....

Note: I had to bump my Vcore to 1.4 in the bios to run stable in the picture I was trying for some lower settings but they didn't take....

Thats awesome! Please post in with full bios setting info once you got it precefted.

What overclock on qpi and core speed can be maintained while keeping nb temps below 45 and core temps below 60?

Using the best air cooling.

Because I think a lot of people out there want the performance but don't want they heat in their cash to fry everything else.

Quote:

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Originally Posted by msgclb

I didn't notice this before but CPU-Tweaker 1.0 beta2 shows the Bus @ 195.6MHz along with some other changes.

BIOS Settings:
CPU Ratio Setting: 20
BCLK Frequency: 190
DRAM Frequency: DDR3-1573
DRAM Timings: All Auto

Attachment 89639

I then checked the stock setting and now CPU-Tweaker shows the Bus @ 137.6MHz.

BIOS Settings:
CPU Ratio Setting: 20
BCLK Frequency: 133
DRAM Frequency: DDR3-1066
DRAM Timings: All Auto

Attachment 89640

I looks like that CPU-Tweaker is adding 4-5MHz to the BCLK BIOS setting. Now am I the only one that is seeing this?

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reading frequency is correct on some system and wrong on some others.
It's seem that I need to perform it, but I don't know why is wrong;

For the XMP profile (not show in the spd table) it's cause it's not enabled on the spd register. (B2=0x00)

Hi
Guacomde

are you using the UD5 or Extreme

if Ud5 how are you cooling the northbrigde
it seems to get hot when water coling on cpu

cheers

Are you kidding me? 4.0 on air, and only 1.36V?? Nice going Guacamole! What air cooler are you using?

Quote:

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Originally Posted by beast200

Hi
Guacomde

are you using the UD5 or Extreme

if Ud5 how are you cooling the northbrigde
it seems to get hot when water coling on cpu

cheers

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I am using the UD5 and I have the V8 but I am quick to trade it in for the Zalman CNPS9900 when it comes out in the next day or so.. I don't notice any heat dump on any of my heatsinks this board is cool to the touch while priming any place you touch it North and South and all the mosfets just cool calm and collected motherboard... Very pleased with my board it's amazing just wish it had e-sata my only complaint...

http://i286.photobucket.com/albums/l...t/DSC00190.jpg

Quote:

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Originally Posted by roller11

Are you kidding me? 4.0 on air, and only 1.36V?? Nice going Guacamole! What air cooler are you using?

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Quote:

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Originally Posted by Guacomole

Hope this helps I am calling this 100% stable but I gotta prime for hours to be sure....

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Hey, don't forget to update us after you've had time to really test the stability. I'd love to know if that OC holds water long term. :comp10:

and 2 results of today....efficiency is horrible for the clock speed....but that`s what crappy mem does to you..CAS9...
temp at -44C load with a single stager..

Hi again

Core I7 920 @ 4000Mhz
Corsair 3GB DDR3-1600Mhz 9-9-9-24 1T
Gigabyte X58-UD5 (F3 Bios)



Setings:

Multi: x20
BCLK:200
Performance : Standard
Loadline : Enable
QPI link : x36
Uncore : x16
Memory : x8
QPI/VTT : 1.26v
Vdim : 1.60v
Vcore : 1.38xv Bios
CPU Settings :Turbo & Multi On , rest Off !








4Ghz @ 1.344v Load (1.36 Idle)


http://img376.imageshack.us/img376/2...hzprimeit8.jpg




Everest @ 4Ghz (Turbo "mode" ON )

http://img243.imageshack.us/img243/3...est4ghzgd9.jpg









Superpi 1M @ 4Ghz (Turbo "mode" ON )


http://img185.imageshack.us/img185/2051/spirecxn1.jpg




regards

Well, I'm still stuck with a stock cooler :(. Running my Core i7 940 at just over 3.5GHz rock solid 24/7 @ 1.208-1.216V (4 cores/8 threads stable), memory at ~1825MHz @ 1.65V.

I guess not bad for a really crappy stock cooler (920 and 940 have the lower-end stock cooler).

Allright gentleman here I am again just a quick update a couple of screen shots after an hour then 2 hours of priming I am really happy with the 920 and the Gigabyte UD5 it's a really incredible set up I ended up with this board by mistake, Mwave sold me a RIIE and when I went to pick it up they didn't have it so the only other board was the Gigabyte so I rolled with it and now this is my motherboard for keeps, you couldn't pry this thing out of my clutches for anything!! I cancelled my RIIE and I am happy, happy, happy........ :clap::clap::clap::up::up:

Attachment 89671

Attachment 89672

Still going.....

Great results Guacomole. I have the exact same cpu and mobo as you, could you plz post your bios settings? Im pretty average when it comes to overclocking, but i can follow instruction pretty well, so can you make detailed bios settings- perhaps screenshots?....
Thanks in advance.

Edit: Nevermind, i just saw your post at the top of the page.

What are your ram timings, and what is your cpu to ram ratio?

good work boys :clap:

Guacomde what bios version are you using ?

Guacamole your tjunction temperature is not good, it's 100°c for core i7 so your temp is higher than you think. Check the last beta rel temp log.

wprime day today :D
1.5Vcore,1.275Vqpi,1,74Vmem (bios set).

Once you pin down Vcore for OC, QPI/vtt for uncore Mhz and mem volts it is easy to switch between multipliers by adjusting mem voltage/speed and uncore volt/speed.

182x22 prime 12+hrs (settings previous post)
191x21 overnight for 7+ hrs, (uncore lowered 16x, mem to 1.62v o/w same settings)
20x200 prime 6+hrs (cant run longer leaving town) (uncore 16x and vtt up to 1.32 and mem voltage to 1.64)...

uncore from 18 to 16 however is similar to running TRD 9 versus 7, if can believe everest. Despite going from 182x22 to 191x21 with increased blck and increased mem speed, I lost mem performance very small degree b/c also dropped uncore to 16x. In order to fully utilize 20x200 with increased mem speed need to be willing to run higher vtt/qpi volts to allow higher uncore mhz.

giorgos nice clock with low volts! I need way more mhz than that to get 4550.

Quote:

---

Originally Posted by Guacomole

I am using the UD5 and I have the V8 but I am quick to trade it in for the Zalman CNPS9900 when it comes out in the next day or so.. I don't notice any heat dump on any of my heatsinks this board is cool to the touch while priming any place you touch it North and South and all the mosfets just cool calm and collected motherboard... Very pleased with my board it's amazing just wish it had e-sata my only complaint...

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nice results here !
bu why do you want to change your V8 to a zalman ? and why did you change the stock fan for the V8 ?

Quote:

---

Originally Posted by johnyz333

Great results Guacomole. I have the exact same cpu and mobo as you, could you plz post your bios settings? Im pretty average when it comes to overclocking, but i can follow instruction pretty well, so can you make detailed bios settings- perhaps screenshots?....
Thanks in advance.

Edit: Nevermind, i just saw your post at the top of the page.

What are your ram timings, and what is your cpu to ram ratio?

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My ram is 9-9-9-24 and I am on the 8x multiplier for memory..

Quote:

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Originally Posted by freshy

good work boys :clap:

Guacomde what bios version are you using ?

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F3

Quote:

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Originally Posted by pinto

Guacamole your tjunction temperature is not good, it's 100°c for core i7 so your temp is higher than you think. Check the last beta rel temp log.

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pinto I here what you are saying but I don't exactly understand on the version of Real Temp I am using it tells me my TJ is 95 so I upped it to 100 and now it seems I have more room Can you please explain this to me?

Quote:

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Originally Posted by herderien

nice results here !
bu why do you want to change your V8 to a zalman ? and why did you change the stock fan for the V8 ?

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Stock fan sucks temps were out of control, the V8 is all that I could find for the 1366 and I always like Zalman the best I have always run Zalman coolers for all my air cooling, plus the V8 is not the best design very cheap..

Update: I am having some trouble on the 20 multiplier (fail prime after 3 hours) so now I have read a little in the other threads I am trying 4.0 at 211 Bclk with the 19X multiplier it seems to be working better but I'll keep you posted....

Quote:

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Originally Posted by Guacomole

Very pleased with my board it's amazing just wish it had e-sata my only complaint...

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The extreme comes with an e-sata backplate, maybe you could try to steal someone's if they don't want it :)

Gaucomole, nice job on air, I bet you are 1 notch vcore away from prime stable 20x200. Or a few C too high at current volts. Would be interesting if you had temps lower 5-7C and see if stable at current vcore or lower, also be interesting to see if 19x211 gets you there without raising vcore. I dont think mine will prime at 211 bclk...wont boot past 215. Water I think is going to make it much easier to OC these hot things.

F3E bios is ok as long as leave turbo off. Turbo on bug raises bclk to 23 all time, not just for turbo, so need additional .03vcore just to boot, and almost twice that to run prime....so back to F3 til bug fixed.

EDIT: Cant use turbo mode when using lower multiplier on stock on any bios as then will increase multiplier by 2 instead of one, requiring much higher vcore for stability.
Example 22x182 for 4ghz, prime stable with and without turbo (23x182 or 4186mhz)
21x191 for 4ghz, will not even boot at same vcore because turbo is then 23x191 (4393). Had to increase vcore by .03V to support even booting 4393 on core 0/1, ran prime couple mins but no time to play with it....apparently one negative of i940 over i920 if wanting to run 20x200 with turbo on...and turbo makes a significant difference.

Hello all,

I just ordered my i7 920, should be arriving by Dec 2nd. Still to decide on mobo - Asus/ GB / Evga - I am confused which to pick (I am not an extreme overclocker though 3.6 to 3.8 would do fine with me.)

Can anyone tell me, if my TUNIQ Tower will fit on this LGA1366 socket layout ? Or Do I have shell out money to get a new CPU Cooler too ????

Thanks for your help.

Quote:

---

Originally Posted by Guacomole

My ram is 9-9-9-24 and I am on the 8x multiplier for memory..



F3



pinto I here what you are saying but I don't exactly understand on the version of Real Temp I am using it tells me my TJ is 95 so I upped it to 100 and now it seems I have more room Can you please explain this to me?



Stock fan sucks temps were out of control, the V8 is all that I could find for the 1366 and I always like Zalman the best I have always run Zalman coolers for all my air cooling, plus the V8 is not the best design very cheap..

Update: I am having some trouble on the 20 multiplier (fail prime after 3 hours) so now I have read a little in the other threads I am trying 4.0 at 211 Bclk with the 19X multiplier it seems to be working better but I'll keep you posted....

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Use the 2.85 beta version it supports the i7 cpu better than the old ones ;)

@ Pinto

care to share your settings for 4.5 on that 965 of yours?

turbo enabled, bios F3, 1.49 vcore, loadline enabled, cpu PLL 1.96, IOH core 1.16, cpu clock 800mv, 1.64 DRAM volts, 1.38 Vtt, QPI 36X, uncore 17, mem 8.
http://valid.canardpc.com/show_oc.php?id=462368

Quote:

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Originally Posted by icecold316

Hello all,

I just ordered my i7 920, should be arriving by Dec 2nd. Still to decide on mobo - Asus/ GB / Evga - I am confused which to pick (I am not an extreme overclocker though 3.6 to 3.8 would do fine with me.)

Can anyone tell me, if my TUNIQ Tower will fit on this LGA1366 socket layout ? Or Do I have shell out money to get a new CPU Cooler too ????

Thanks for your help.

---

I don't know how the Tuniq attaches to boards but if it uses a loose bracket you should be able to get an LGA1366 bracket for it. If it's made specifically for the LGA775 you're out of luck, 'cos the mounting holes are different.

The thermalright 1366 mounting kit should be adaptable to the Tuniq with a bit of packing I would think.

hi
i too have had problems with 200 x 20
still at 190 x 20 totaly stable

can get 211x 19 to work ok but volts sarting to get high
and still waiting for fuzion 1366 mounting bracket
change mem from corsair xms 1333 to 1600
much better

for icecold 316 the gigabyte ud5 is a very good board
first gigabyte board i have purchased

normal go for asus but no hesitation about recommending this board

cheers

nevermind :)

Quote:

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Originally Posted by bowman

I don't know how the Tuniq attaches to boards but if it uses a loose bracket you should be able to get an LGA1366 bracket for it. If it's made specifically for the LGA775 you're out of luck, 'cos the mounting holes are different.

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Should work fine, perhaps add a washer. Bought 2 of them, 1 is for me Tuniq. Wil make pic.

Quote:

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Originally Posted by pinto

Use the 2.85 beta version it supports the i7 cpu better than the old ones ;)

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Thanks pinto got it also looks like the new core temp is goos too...

Quote:

---

Originally Posted by beast200

hi
i too have had problems with 200 x 20
still at 190 x 20 totaly stable

can get 211x 19 to work ok but volts sarting to get high
and still waiting for fuzion 1366 mounting bracket
change mem from corsair xms 1333 to 1600
much better

for icecold 316 the gigabyte ud5 is a very good board
first gigabyte board i have purchased

normal go for asus but no hesitation about recommending this board

cheers

---

As far as I can tell the 200 X 20 has some kind of issue I think it's a multiplier issue actaully I am testing right now 211 X 19 and it is going better but I left for a few hours and came home and I had rebooted so I upped some volts and I am giving it another run..

We shall see but it's okay to put some voltage to this stuff we are not OCing FSB and NB stuff anymore everything is different.

I agree with the recommendation about the Gigabyte it has been an excellent choice for me personally...

Quote:

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Originally Posted by unclewebb

TJMax is 100C.
When overclocking you'll probably lose long term Prime stability near 90C.

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What about this?

Quote:

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Originally Posted by loc.o

Should work fine, perhaps add a washer. Bought 2 of them, 1 is for me Tuniq. Wil make pic.

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Good to know that. So its possible to make Tuniq fit on it with a slight mod. I definitely dont want to do CD Rack Mod like Pedro did :ROTF: with Tuniq on 920. If possible show me the pic. Thanks.

It took me just one attempt to do this, less than 2 minutes.:yepp:

4.188Ghz with just 1.34 V, below the 1.35 V limit, very much stable.

Who did say overclocking this would be hard?

:rofl:

CPU-Z Validation

Guacomole what trFC setting are you using?

Quote:

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Originally Posted by johnyz333

Guacomole what trFC setting are you using?

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everything is on auto besides the 9-9-9-24 but I just got the corsair 1600 cas8 and everything is changing....

Ok plz update us on changed settings with the corsair.
So what was the final outcome with the 4ghz oc, was it 24/7 stable??

Quote:

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Originally Posted by johnyz333

Ok plz update us on changed settings with the corsair.
So what was the final outcome with the 4ghz oc, was it 24/7 stable??

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No not yet stable at 4.0 I made it 3 hours in prime95 then Prime stopped working and windows asked if I wanted to close the program so I started over and I am now trying the 19X multiplier with my Bclk at 211 still freezing and having some issues and also new memory so I will update after I have some time to sort it all out.... :shrug:

ok sweet.
The reason i ask is im picking up my ud5 tomorrow, but still have a chance to get the evga instead. All i want is 4ghz on air(thermalright 120). U think i should stick with the ud5?

How high we letting load temps get? Is 90 ok:eek:?

Quote:

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Originally Posted by sinister1st

How high we letting load temps get? Is 90 ok:eek:?

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Yes as long as the system is stable, if it trespasses 100 then the multiplier will be dropped until it reaches their required temps, lets say 60 celsius.

Quote:

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Originally Posted by Metroid

Yes as long as the system is stable, if it trespasses 100 then the multiplier will be dropped until it reaches their required temps, lets say 60 celsius.

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Great:up:

All Core based CPUs are designed to start throttling just before they hit TJMax. Usually when Distance to TJMax is 2. RealTemp will show this in the Thermal Status area at the bottom. When it says OK that means there have been no thermal throttling episodes since you started up your computer. If it says LOG that means there has been at least one thermal throttling incident logged since you last booted up and if it says HOT that means your processor is presently throttling. Your CPU will automatically drop the multi and total MHz only long enough to get your temperatures under control and then will return the multi to its previous value. It will continue to cycle the multi up and down to control heat and will let the CPU basically sit at its maximum temperature.

Here's what an E8400 looks like after running Prime Small FFTs for 3 hours with the CPU fan turned off.
Only one core hit 100C and that only happened once even though the CPU fan was turned off for 3 hours.

http://img204.imageshack.us/img204/276/hote8400fw5.png

The Core i7 is designed to do the exact same thing. As long as your overclock isn't maxed out, they can both run quite reliably at some very high temperatures. So far the Core i7 looks like it has more temperature headroom compared to Core 2 Duo.

Allright after much deliberation I think I have finally done it.. Although I may not be able to reboot (inside joke for Gigabyte owners) here we go:

Attachment 89738

Everything is basically on auto I went back and read the article on HARDOCP about the P6T Deluxe then I remembered that these boards are owned and manufactured by the same company.. I mean Gigabyte now owns Asus so it made sense that they would be nearly identical in a lot of ways... Anyway, I am just rolling along and I will take pictures of my bios again after about 5 hours of Prime95.. The only settings I adjusted were Vcore, DRam voltage, Loadline enabled and I manually set my memory timings to 9-8-8-24...

Well, after some more fiddling with the stock cooler I came up with some mixed results. Using Core i7 940 at 3.4GHz (200x17), uncore at 3.2GHz, and QPI at 3.6GHz the system is rock solid 24/7 using just 1.208-1.216V with temps maxing out at around 88C on all 4 cores. Upping the multiplier to 18 yields 3.6GHz with everything else the same, including voltage and can Prime successfully for anywhere between 15-45 minutes. In that time the temps will climb to over 90C and it seems that as soon as that becomes sustained it is only a matter of time before the system will crash. So essentially, 3.6GHz (200x18) with a stock cooler should be stable enough for even gaming as there will be no sustained 100% load on the cores during that time. But, it is a bit of crapshoot. The best I managed to do on stock is boot Windows and run SuperPi at 4.1GHz using about 1.35V. This was not stable for any sustained period of time really. One other thing to note is that my computer is stuck in a corner so it is definitely not in the most optimal setup for air cooling. Furthermore, my room temperature is typically anywhere between 20C-22C which is a bit on the warmer side. I'd expect that with some water cooling I could keep the volts and temps down and quite comfortably get 4GHz-4.2GHz.

This is all done on R2E mobo, with only voltages for core, QPI/DRAM, and DRAM being adjusted. I have not noticed anything else affecting the OC ability for now. I also noticed that the CPU seems to respond better to finer adjustments of voltage on the lower end to get higher clocks than cranking up the voltage. I'm sure this is also in part due to temperatures. Also, Intel lists 1.35V as max, so I am not comfortable going too much past that. Unfortunately, R2E gets not ability to modify QPI and Uncore multipliers so this blows when trying to isolate max stable CPU clock as QPI and Uncore are always playing a role. Maybe this should be a feature request in future BIOS? Who knows...one can only hope...

I was thinking of picking up Swiftech H20-220 Ultima Plus WC kit to cool this better but since I am new to WC, I am not really sure this thing is worth the money...thoughts?

Quote:

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Originally Posted by dejanh

I was thinking of picking up Swiftech H20-220 Ultima Plus WC kit to cool this better but since I am new to WC, I am not really sure this thing is worth the money...thoughts?

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you shouldn't buy a kit. Read the Liquid Cooling section of this forum and you'll find out why.

Quote:

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Originally Posted by safan80

you shouldn't buy a kit. Read the Liquid Cooling section of this forum and you'll find out why.

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Agreed if you are going to water cool do it right the first time spend the money do your research use companies like swiftech, thermochill, EK, Danger Den, etc.. It's kind of a big deal..

So I am having trouble with Easy Tune 6 on the F3 bios I cannot install EZ Tune and get it to work is anyone else having a problem? I get an error that says Intel sockets fail to intialize and I get a MUI MFC error anybody know what this could be?? I think there might be something wrong with the board..

Quote:

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Originally Posted by Guacamole

Agreed if you are going to water cool do it right the first time spend the money do your research use companies like swiftech, thermochill, EK, Danger Den, etc.. It's kind of a big deal..

So I am having trouble with Easy Tune 6 on the F3 bios I cannot install EZ Tune and get it to work is anyone else having a problem? I get an error that says Intel sockets fail to intialize and I get a MUI MFC error anybody know what this could be?? I think there might be something wrong with the board..

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I got same problem on vista 64 and know of other 2 with same i guess is jsut buggy software, you got an ati card ?

P.S. I see you got a 4870-512 like me :)

If can, can give a try with the 280 gtx ?

hey folks,
I have the CAS8 1600 Dominators. If you have this Kit and the RIIE see my thread about rhe BIOS in the Xtreme Bandwith section. It won't run stable on 0403 original BIOS. I flashed mine to 0602 and was able to run 6400 QPI, DDR1600 on the DRAM Freq, 1.64xxx (keyed in 1.64) and mnaually adjusted timings to 8-8-8-24. I have not messed with any other OC settings yet becasue I was fighting a Video issue the last 3 days. It turns out my card was defective and needs to be RMA'd.

Those settings seem much more stable with the new BIOS. Before my RIIE would not boot after setting the above advertised specs into the BIOS. It would only run at BIOS deafaults of 1333. Now it runs smoothly, stable, and as advertised. I highly recommend flashing your BIOS for complete memory support if you are using the RIIE.

I also measured and verified DRAM voltage through ProbeIt and got a 1.639v actual reading on the DMM. These are safe advertised settings. The 6400 QPI is advertised for the Extreme i7 965.

Just passing on my findings on this particular RAM, and the BIOS issue I found. Thought it would help. The Dominators are really good modules. I can't wait to tweak them and start OC'ing when I get my Video Card RMA taken care of.

Quote:

---

Originally Posted by dejanh

I was thinking of picking up Swiftech H20-220 Ultima Plus WC kit to cool this better but since I am new to WC, I am not really sure this thing is worth the money...thoughts?

---

danamics new em cooler at price similiar to watercooling might be an option.
the review isnt out yet but the cooler seems as a choice for those going watercooling.

Quote:

---

Originally Posted by Ghigo

I got same problem on vista 64 and know of other 2 with same i guess is jsut buggy software, you got an ati card ?

P.S. I see you got a 4870-512 like me :)

If can, can give a try with the 280 gtx ?

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Well that is good and bad news considering I traded my 4870 for a GTX 260 Well live and learn ATI Strikes again.. Shoot! Thanks for letting me know I could have banging my head against the wall for awhile.... :shrug:

I no think is ati problem but more crap software from gigabyte, if you look to older easy tune versions it was a bug festival and really few people able to use it.

Gotta say, I'm loving my Core i7 / ASUS P6T / Noctua NH-U12P 1366SE combination.
I'm running 3.6 Ghz at stock voltages, and I have all 6 case fans wired up to the motherboard to automatically adjust fanspeed (speedfan)
EASIEST OVERCLOCK EVER.
http://www.exoid.com/R1F/3600.jpg

Wish I could figure out why my pi1m time is fine but my 06 CPU score blows. :(

Holy crap. I figured it out. Setting msconfig to "4" cores under boot had my score down to 3k. Leaving it to default so windows handles it caused the score to jump up where it ought to be.

i have come across some interesting results concerning HT while OCing on my setup...

@ 4.2 with HT enabled
http://i37.photobucket.com/albums/e8...der/0642ht.jpg



@ 4.2 with HT DISABLED
http://i37.photobucket.com/albums/e8...r/0642noht.jpg



the jusp in overall score isn't that big, but if you just look at the 3D numbers, you'll see a pretty big diff. The overall diff being smaller is only accounted for the decrease in CPU score when HT is disabled.

As an aside, while watching the benchmark roll, there were times when I noticed a 30fps increase with HT disabled...

seems these chips have a great deal of untapped gaming potential to be had by simply disabling HT

its noted for gaming HT off is the best option.

Good find sonofander, let's see if the result is repeatable by a few people on different hardware to rule out any anomalies :)

Quote:

---

Originally Posted by T_Flight

hey folks,
I have the CAS8 1600 Dominators. If you have this Kit and the RIIE see my thread about rhe BIOS in the Xtreme Bandwith section. It won't run stable on 0403 original BIOS. I flashed mine to 0602 and was able to run 6400 QPI, DDR1600 on the DRAM Freq, 1.64xxx (keyed in 1.64) and mnaually adjusted timings to 8-8-8-24. I have not messed with any other OC settings yet becasue I was fighting a Video issue the last 3 days. It turns out my card was defective and needs to be RMA'd.

Those settings seem much more stable with the new BIOS. Before my RIIE would not boot after setting the above advertised specs into the BIOS. It would only run at BIOS deafaults of 1333. Now it runs smoothly, stable, and as advertised. I highly recommend flashing your BIOS for complete memory support if you are using the RIIE.

I also measured and verified DRAM voltage through ProbeIt and got a 1.639v actual reading on the DMM. These are safe advertised settings. The 6400 QPI is advertised for the Extreme i7 965.

Just passing on my findings on this particular RAM, and the BIOS issue I found. Thought it would help. The Dominators are really good modules. I can't wait to tweak them and start OC'ing when I get my Video Card RMA taken care of.

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I have basically the same setup as you, just using Core i7 940 instead of 965. Same Dominator sticks. I was able to run them at 1800MHz 7-7-7-20 stable with 1.65V and 1.437V QPI/DRAM. However, I have also noticed that upping the core speed will affect your ability to run the ram so high. I am still investigating this issue...

I am using the newest 0705 BIOS btw.

Quote:

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Originally Posted by flopper

danamics new em cooler at price similiar to watercooling might be an option.
the review isnt out yet but the cooler seems as a choice for those going watercooling.

---

Unfortunately, that one is not licensed for sale in North America, and who knows when it will become available. I wanted it as well, even contacted the manufacturer but they said no dice. Maybe I will pick it up in Europe when I go this coming summer depending on what the reviews say.

Oh, and in terms of the watercooling components, I looked at the reviews for the components that come as part of that kit I mentioned, and they are very decent. Most of those components are listed even on this site as some of the best to buy. The only two things I would like different than in the kit is a bigger rad (3 vs. 2) and maybe a voltage adjustable pump. Building the same kit myself is stupendously expensive considering I can buy the whole kit for $290.

Is Loadline Calibration Ok for Core i7??? Also the reason why HT enabled lowers scores is the APP is not multi threaded or optimized, compare with a benchmark that is great at multi threading, like Lost Planet.

well then it seems very important to have a good idea of what you want to use your machine for when OCing...

I can stabalize 4.2 @ 1.45v and really good temps with HT disabled. If I turn HT back on, I have to raise my vcore to 1.48 to keep prime stable and my temps shoot through the roof even on really good water.
Right now I'm working on getting 4.3 stable w/out HT and I'm already working with 1.475vcore. I'd hate to see what volts it would take to maintain that clock speed w/ HT enabled


anybody running the RIIE and have luck stabalizing 4.3 or higher? I'm feeling a bit stuck... it seems that if I raise my QPI voltage to 1.45v real, it stabalizes my CPU on small ffts, but the higher QPIv makes the rest of my system unstable on the large ffts. If I drop my QPIv my system will prime large ffts all day, but the small one BSOD my machine :shrug:

I have dialed in 4.25 though :D


http://i37.photobucket.com/albums/e8.../4250prime.jpg



I know it's only 45min, but acceptable for me to try getting to the next level...

Quote:

---

Originally Posted by unclewebb

All Core based CPUs are designed to start throttling just before they hit TJMax. Usually when Distance to TJMax is 2. RealTemp will show this in the Thermal Status area at the bottom. When it says OK that means there have been no thermal throttling episodes since you started up your computer. If it says LOG that means there has been at least one thermal throttling incident logged since you last booted up and if it says HOT that means your processor is presently throttling. Your CPU will automatically drop the multi and total MHz only long enough to get your temperatures under control and then will return the multi to its previous value. It will continue to cycle the multi up and down to control heat and will let the CPU basically sit at its maximum temperature.

Here's what an E8400 looks like after running Prime Small FFTs for 3 hours with the CPU fan turned off.
Only one core hit 100C and that only happened once even though the CPU fan was turned off for 3 hours.

http://img204.imageshack.us/img204/276/hote8400fw5.png

The Core i7 is designed to do the exact same thing. As long as your overclock isn't maxed out, they can both run quite reliably at some very high temperatures. So far the Core i7 looks like it has more temperature headroom compared to Core 2 Duo.

---

Will the multi still drop with hpet enabled and EIST disabled? I havent tried this yet with full cpu throttle?

Hi again guys

few more tests with Core i7 920 and X58-UD5




200 BCLK
DDR3-1600Mhz 9-9-9-24
Uncore x16
memory 8x


http://img376.imageshack.us/img376/2...hzprimeit8.jpg








----------------------------




205 BCLK
DDR3-1640Mhz 9-9-9-24
Uncore x16
memory 8x
Turbo ON




http://img520.imageshack.us/img520/156/4300dy7.jpg










superpi 1M


http://img520.imageshack.us/img520/1016/spinovodj3.jpg




:up:

as far I went today.
I might try for sub 9 tomorow.
the cpu and board are however picky at those speeds.
http://www.svensknlp.nu/databilder/maxed.jpg

Another quick question. How do RAM timings effect how you OC? For instance mine will have 7-7-7-20 timings, does that make it any different for me to OC than those of you with 8-8-8-XX timings?

I just wanted to say THANKS GUYS. I was able to use the info gathered
in this forum to get my new rig setup. Unfortunately i am still waiting on
a water block so am not doing anything spectacular here. Here is what
i have so far on air.

Asus P6T
I7 920 - batch=3836A866
Patriot 1600 6GB

Multi: x19
BCLK:200
Dram: 1600
Uclk: 3208
QPI Link: 9624
CPU: 1.23v
QPI/Dram: 1.28v
Vdim: 1.56v
Loadline: Enable

Quote:

---

Originally Posted by Jupiter

I just wanted to say THANKS GUYS. I was able to use the info gathered
in this forum to get my new rig setup. Unfortunately i am still waiting on
a water block so am not doing anything spectacular here. Here is what
i have so far on air.

Asus P6T
I7 920 - batch=3836A866
Patriot 1600 6GB

Multi: x19
BCLK:200
Dram: 1600
Uclk: 3208
QPI Link: 9624
CPU: 1.23v
QPI/Dram: 1.28v
Vdim: 1.56v
Loadline: Enable

---

Sweet, looks like you have a nice 3.8ghz OC on your hands there. Did it pass the 24/7 testing yet, or is it just gaming stable?

Quote:

---

Originally Posted by Hot'n'Chilly

Sweet, looks like you have a nice 3.8ghz OC on your hands there. Did it pass the 24/7 testing yet, or is it just gaming stable?

---

I tried running prime but it got over 70C pretty quick so i stopped it.
I will run some 24/7 testing once i get a water block. I did test at
3.8 and 4.0 while gaming 'NFS Undercover' and it ran perfectly fine.

Quote:

---

Originally Posted by Jupiter

I tried running prime but it got over 70C pretty quick so i stopped it.
I will run some 24/7 testing once i get a water block. I did test at
3.8 and 4.0 while gaming 'NFS Undercover' and it ran perfectly fine.

---

Your results are encouraging. I've been lowering the voltages trying to find the sweet spot today. My initial vCore was 1.31/1.35 (Windows/Bios). Now I am at 1.3/1.26. For stability testing I've been using OCCT v2.01b for 30"-60". In between testing I've been gettin' my game on making sure the settings are good.

I'm using the Gigabyte EX58-Ext. (cpu batch# 3837A728). I'm also using the Cooler Master V8 and I gotta say I like it so far. Keeps the temps manageable until I can put everything back under the wet stuff.

200 BCLK
DDR3-1600 Mhz 9-9-9-24
Uncore x16
Memory 8x
Turbo ON

Keep pushing it and posting your results! :up:

http://img.photobucket.com/albums/v3...920ss_126v.jpg

Looks like 1.25v lowest 1 hour OCCT stable vCore.

http://img.photobucket.com/albums/v3...0ss_12498v.jpg

Super Pi: 32M

i ran the same test HT on / HT off and got 13827 ht on 13542 ht off the difference is basicly the cpu score

Is everyone turning Loadline Calibration on?

12GB (6x2GB) GSkill PI 1333 7-7-7-19-1T
ASUS P6T Deluxe
i7 920 cooled by XSPC Delta V3, 750lph, 240 rad

With this system BCLK will not do 190MHz, it is currently priming at 185MHz (3.72GHz), relaxing the RAM to 9-9-9-27 doesn't help, setting tRFC to 110 doesn't help, using 2T or 3T doesn't help. But with only 6GB the board will do 190x20 or 200x19.

Has anyone else found that BLCK is limited by populating all RAM slots?

I will only use loadline enabled on mine. Loadline off = 1.39 bios, 1.36 idle, 1.31-2 load for prime stable, overshoot should be ~.075 v (1.39bios-1.315load) if GB follows intel specs. Loadline on = 1.35 bios, 1.328 idle, 1.31 load for prime stable, overshoot should be again ~.075v from load or ~1.39, only with loadline on I am not being babysat by bios setting = max overshoot, I have to realize overshoot is still going to ~1.39, ie whatever overshoot was from loading vcore with loadline off.

Between being babysat with 1.36 idle vs no babysitting and 1.328 idle, I will take the lower idle.

Something I´m just starting with Asus P6T, i7 920,Cellchock PC3-12800C7 Black Edition 1600C7(7-7-7-17)3x1GB Noctua NH-U12P SE 1366 Starting new setup closed case Antec P182--looks promising http://www.aijaa.com/v.php?i=3163744.jpg

What are your BIOS info? Its hard to see how you got it just from that shot.

http://img389.imageshack.us/img389/6...9418tb7.th.jpg
vcore 1.32
cpu pll 196
qpi/ram 1.35

cpu differential line amplitude 800mv
HT off
i'm not sure i'll go this way as my ram doesn't like more then 1600mhz, so i have to go for lowest multi (around 1275) 19x200 is rock stable @1.30v
after that screen i had a crash after 10 mins OCCT, and still have a weird issue for wich i'll make a seperate post so i stopped my testings

Quote:

---

Originally Posted by initialised

12GB (6x2GB) GSkill PI 1333 7-7-7-19-1T
ASUS P6T Deluxe
i7 920 cooled by XSPC Delta V3, 750lph, 240 rad

With this system BCLK will not do 190MHz, it is currently priming at 185MHz (3.72GHz), relaxing the RAM to 9-9-9-27 doesn't help, setting tRFC to 110 doesn't help, using 2T or 3T doesn't help. But with only 6GB the board will do 190x20 or 200x19.

Has anyone else found that BLCK is limited by populating all RAM slots?

---

Try the newest bios but it shouldn't matter how much memory that board should produce up to a 221 Bclk is what it specs for...

Quote:

---

Originally Posted by herderien

http://img389.imageshack.us/img389/6...9418tb7.th.jpg
vcore 1.32
cpu pll 196
qpi/ram 1.35

cpu differential line amplitude 800mv
HT off
i'm not sure i'll go this way as my ram doesn't like more then 1600mhz, so i have to go for lowest multi (around 1275) 19x200 is rock stable @1.30v
after that screen i had a crash after 10 mins OCCT, and still have a weird issue for wich i'll make a seperate post so i stopped my testings

---

try running prime.

OCCT sucks IMO, i never use it, nothing is better than Prime95/Memtest and Linpack, use those 3, if all are stable, you have one rock solid system.

occt worked good for my previous system :p

don't know if 4ghz is reachable for my noob skills, either i couldn't get more then 10 mins stability with 100% on all for cores @19*211 and loose too much memory bandwidth as i have difficulties to push my ram @1675Mhz

btw any clue now on why 20x multi does not work @ 200bclk ? do we have to leave it on "auto" ?

looks good with prime to :
http://img152.imageshack.us/img152/5...0465ex5.th.jpg
going to bed now, i'll try different things tomorrow for this damn 20x200 :p

Quote:

---

Originally Posted by herderien

occt worked good for my previous system :p

don't know if 4ghz is reachable for my noob skills, either i couldn't get more then 10 mins stability with 100% on all for cores @19*211 and loose too much memory bandwidth as i have difficulties to push my ram @1675Mhz

btw any clue now on why 20x multi does not work @ 200bclk ? do we have to leave it on "auto" ?

looks good with prime to :
http://img152.imageshack.us/img152/5...0465ex5.th.jpg
going to bed now, i'll try different things tomorrow for this damn 20x200 :p

---

I cant get 20x200 stable either, i have tried 3 boards, 3 different cpu's, none of which can do 20x200 no matter the volts. Am i missing something???

I just bought Gigabyte UD5 now.

I am Planning to do only 3.8Ghz or 4 Ghz max, Can anyone tell me if the below Memory is good?
OCZ Gold 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Triple Channel Kit Desktop Memory - Retail
http://www.newegg.com/Product/Produc...82E16820227365

Is DDR3 1333 sufficient for reaching 4Ghz or is it Good to have DDR3 1600?

Thanks.

Quote:

---

Originally Posted by icecold316

I just bought Gigabyte UD5 now.

I am Planning to do only 3.8Ghz or 4 Ghz max, Can anyone tell me if the below Memory is good?
OCZ Gold 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Triple Channel Kit Desktop Memory - Retail
http://www.newegg.com/Product/Produc...82E16820227365

Is DDR3 1333 sufficient for reaching 4Ghz or is it Good to have DDR3 1600?

Thanks.

---

at 200 base clock, you can either use 1200mhz or 1600mhz, if i were you id go with 1600mhz kit, patriot has a good kit for 250, gskill has one for 230.

Quote:

---

Originally Posted by GAR

at 200 base clock, you can either use 1200mhz or 1600mhz, if i were you id go with 1600mhz kit, patriot has a good kit for 250, gskill has one for 230.

---

OCZ had better timings compared to Patriot/GSkill/Corsair XMS3

OCZ:
# Cas Latency: 8
# Timing: 8-8-8-24

Patriot/GSkill
# Cas Latency: 9
# Timing: 9-9-9-24

If timing doesnt matter, I can get Corsair XMS3 6GB around 210 or so .

I have OCZ DDR3 1600 from new egg, works great, though I am using 3x1 since still on xp 32 bit til windows 7. I would definitely get 1600 over 1333 like GAR said, gives you more options for mem dividers like 8mem x200 for 1600. When i do get wind 7 64 bit, I will likely get 1800 or higher to give me more options.

Intel engineer in docs/video said turbo works with one or two cores loaded, I thought was just one. Tested on my i940 at 22x182, prime load on core 1 only (affinity cores 0/1) runs turbo multi to 23. Loading prime on 2 cores ( 0/1,2/3) multi bounces around 22.5, etc., loading 3 cores (0-5) and 4 cores (0-7) turbo is off and multi 22. When setting multi down one to 21 (turbo is then +2), one core loaded full turbo of 23, 2 loaded anywhere from 21.5 to 22.5 turbo depending on load.

pic w/22.5 multi with cores 1 and 2 (0/1 2/3) loaded with orthos.

Quote:

---

Originally Posted by icecold316

OCZ had better timings compared to Patriot/GSkill/Corsair XMS3

OCZ:
# Cas Latency: 8
# Timing: 8-8-8-24

Patriot/GSkill
# Cas Latency: 9
# Timing: 9-9-9-24

If timing doesnt matter, I can get Corsair XMS3 6GB around 210 or so .

---

these g.skill have better timings
http://www.newegg.com/Product/Produc...82E16820231236

http://www.trustedreviews.com/mother...-II-Extreme/p5

so does this mean that 920 consume the same power as the 965 even if the 920 has a lower clock speed?

Quote:

---

Originally Posted by icecold316

I just bought Gigabyte UD5 now.

I am Planning to do only 3.8Ghz or 4 Ghz max, Can anyone tell me if the below Memory is good?
OCZ Gold 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Triple Channel Kit Desktop Memory - Retail
http://www.newegg.com/Product/Produc...82E16820227365

Is DDR3 1333 sufficient for reaching 4Ghz or is it Good to have DDR3 1600?

Thanks.

---

Definatly go for the 1600
i made the mistake of getting 1333 and then exchanged for 1600
i had problems with uncore @12 which you need for the mem 6 x
and could not get the system to work with mem @1200 had to overclock mem to 1520 (which it did)

Quote:

---

Originally Posted by rge

I have OCZ DDR3 1600 from new egg, works great, though I am using 3x1 since still on xp 32 bit til windows 7. I would definitely get 1600 over 1333 like GAR said, gives you more options for mem dividers like 8mem x200 for 1600. When i do get wind 7 64 bit, I will likely get 1800 or higher to give me more options.

Intel engineer in docs/video said turbo works with one or two cores loaded, I thought was just one. Tested on my i940 at 22x182, prime load on core 1 only (affinity cores 0/1) runs turbo multi to 23. Loading prime on 2 cores ( 0/1,2/3) multi bounces around 22.5, etc., loading 3 cores (0-5) and 4 cores (0-7) turbo is off and multi 22. When setting multi down one to 21 (turbo is then +2), one core loaded full turbo of 23, 2 loaded anywhere from 21.5 to 22.5 turbo depending on load.

pic w/22.5 multi with cores 1 and 2 (0/1 2/3) loaded with orthos.

---

Do oyu like orthos more than prime 95? I thought after quad it was just easier to use prime 95?

some 05 action in the SS...-44C load...
the score sucks...should be over 40.5K but i was running mem at ~1480mhz with 9-9-9-24.......GT1 - GT2 lost fps....

cannot get prime stable with 20x200.... even with 1,42v..blue screen after 5 to 10 mins
as my system is stable 19x200 1,3v i wonder what is preventing me from achieving the 4gh stable..could it be some kind of "need exact good vcore" more the push it ?
temps are ok (70/75) could it be the 130w limit ?

Quote:

---

Originally Posted by herderien

cannot get prime stable with 20x200.... even with 1,42v..blue screen after 5 to 10 mins
as my system is stable 19x200 1,3v i wonder what is preventing me from achieving the 4gh stable..could it be some kind of "need exact good vcore" more the push it ?
temps are ok (70/75) could it be the 130w limit ?

---

Might be need to wait for a better bios.
some have had issues running 20x multipel and over 200bclk.
does 19x210 work for u?

Quote:

---

Originally Posted by p360stick

http://www.trustedreviews.com/mother...-II-Extreme/p5

so does this mean that 920 consume the same power as the 965 even if the 920 has a lower clock speed?

---

No there is insufficent data to make this statement.

What where the VIDs of the different processors?

If they have a low VID 965 and compare it against a high VID 920, there is a very high possibility that the 920 would consume more then a 965.

Quote:

---

Originally Posted by herderien

cannot get prime stable with 20x200.... even with 1,42v..

---

Out of curiousity what other settings are u using? For 20x200 stable, I had to use 8x multi and 16-17x uncore. It was not stable with 6 multi and uncore of 12-15. I had to clear cmos after trying 6mem and 12uncore.

Have u tried loadline enable, turbo off (initially), mem 8, uncore 16, pcie 100 (doubt necessary but..), qpi/vtt 1.32, cpu pll 1.86, qpi pll 1.14. And scaling for me is .03 to .035 additional vcore for every 100mhz when around 4ghz. Also what flopper said, be interesting to try 19x210.

Quote:

---

Originally Posted by btdvox

Do oyu like orthos more than prime 95? I thought after quad it was just easier to use prime 95?

---

No, I use prime almost exclusively now with quads. But I needed 4 versions of a program running to set each version affinity for 1 core so it was easy to start and stop each core for testing...just used orthos for that purpose.

First tests on RE2:
Memory stable at 1015mhz (cpu 24/24 frequency)

http://img361.imageshack.us/img361/7...9920wv6.th.jpg

3d stable

http://img84.imageshack.us/img84/775...5mhzaw8.th.jpg

pi32 (not good time but save 11s between 1015mhz 99920 and 870mhz 88820)

http://img84.imageshack.us/img84/736...5mhzto4.th.jpg

i tried 19x210, could get to windows but i abandonned this way as i had to put my ram @1269 it did not seem to be an interessant path in term en performance. also i wasn't sure about what other parts i should put more volts in (cpu pll ? qpi dram ?)

i did not try loadline calibration, i forced mem @1600Mhz (x8 i guess) uncore left to auto and juste pushed vcore as 19x200 is stable i did not think i would have to modify anything but vcore with 20x200.

system is generaly more stable with core mutli on auto spécialy at boot as the speedstep can be unabled...thus is easier to recover from bad oc then it was for 211x19.

maybe i should try loadline calibration...i'll keep you posted !

You are assuming auto will result in same settings with 19 vs 20 multi on an immature bios, you might be right, but my bios was changing auto settings as I made other changes. I would at least make sure your auto uncore is on 16x, ie 3200 mhz 16x200 when you go from 19 to 20 multi, ie make sure it does not change. I took all the important things off auto, especially after watching them change for worse when i boot up at different settings. My mem timings if left on auto on some multis will try and boot at 6,6,6 18, and when it fails it will kill my OC and then boot up at 6,6,6, 18, despite a rating of 1600 at 8,8,8 24. Bios definitely immature, I dont trust auto for much. But loadline definitely helps on mine.

max mhz with 1.56Vcore at -47C..