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P6T - i7 920 - Corsair Dominator 6GB Overclocking

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January 17, 2009 1:09:30 AM

Gentlemen ( & Ladies if there be any),

I need some guidance!

In short I have finally ponied up for a computer system of my dreams, problem is using the i7 920 to overclock. I understand the basics for over clocking older components, and after watching a few videos and reading some websites I'm still at a loss for some of the features of the BIOS.

Does anyone know or can type up a guide explaining the features for a basic overclock for the spec's I have. I purchased the system components as to what was listed on the links below.

What are the basics to get a stable overclock to 3.6 and beyond once I have a better grasp of the beginnings... The bit-tech website and the youtube video were the most helpful, but for as many tutorials have been used for the same components I have, it's still a little unclear. I know that each person will have varing results... I just need the steps and an short explanation for the BIOS components... getting in to the DRAM timing etc there are a lot of options etc... and I don't' want to do anything stupid. So I'm looking to you and the community for help!

i7 920
Noctua NH-U12P
Asus P6T
EVGA GTX-295
Corsair Dominator 6GB 8-8-8-24 (1600)
Corsair HX1000w
CoolerMaster 840

The websites I've referenced so you know my research etc... not just some person wasting your time... I have done some reading.
http://hothardware.com/Articles/Overclocking-Intels-Cor...
http://www.tomshardware.com/reviews/core-i7-overclock,2...
http://www.bit-tech.net/hardware/cpus/2008/11/06/overcl...
http://www.extremetech.com/article2/0,2845,2335836,00.a...
http://www.neoseeker.com/Articles/Hardware/Reviews/asus...

http://www.youtube.com/watch?v=iwbzQblRQ7I&eurl=http://...

http://www.pureoverclock.com/review.php?id=685&page=7
http://i4memory.com/wp/article/327

January 18, 2009 3:58:18 AM

almost 40 views and no comments? There's gotta be someone out there with the knowledge... Here are some screen shots if this helps..

I was able to get 3.41mhz, but the RAM was listed as 9-8-8-24 @ T1 instead of the 8-8-8-24 @ T2 ... any ideas? should I use the Manual, D.O.C.P or X.M.P? Bit-tech.net used XMP for the same RAM hardware, but they achieved a much higher OC.

VISTA x64 SP1







January 22, 2009 12:28:58 AM

are you using the asus p6t, or the p6t deluxe?
Related resources
February 16, 2009 10:25:27 PM

Noctua NH-U12P
Asus P6T
Corsair Dominator 6GB 8-8-8-24 (1600)

This is exactly the combination I am considering ordering (the P6T deluxe actually), and after reading some reviews, I was concerned about clearance between the Noctua and the dominator heat sinks. I don't know if the p6T deluxe is significantly different in that regard, and I plan to go with 12gig, do you have much clearance between the Noctua and the Dominator heat sinks?
February 17, 2009 1:16:04 AM

I had enough clearance , but I think it might depend on how you place the heatsink. I have the fan's facing up towards to top of my case since I have vents on the top with 2x230mm fans. I had no problems with clearance.
February 17, 2009 11:11:11 AM

I have almost an identical system, except I am using the BFG GTX 260 OC (ver.216). I am running stable at 3.6GHz, here is what I have set, hopefully it helps.

-BCLK Freq.: 180
-DRAM Freq.:1603MHz
-CPU Voltage: 1.25V

The other settings I actually kept stock for now, until I do more research on safe voltage with the i7. I have been running these settings for just over a couple of weeks and everything seems to be running great. No hiccups, no stuttering, no suspension or hanging.

Best of luck, if you can toss some info my way as to something new that you find out on Voltage tweaking with the i7 I would much appreciate it. :) 

Good Luck
February 17, 2009 5:35:28 PM

mkyb14 said:
Gentlemen ( & Ladies if there be any),

I need some guidance!

In short I have finally ponied up for a computer system of my dreams, problem is using the i7 920 to overclock. I understand the basics for over clocking older components, and after watching a few videos and reading some websites I'm still at a loss for some of the features of the BIOS.

Does anyone know or can type up a guide explaining the features for a basic overclock for the spec's I have. I purchased the system components as to what was listed on the links below.

What are the basics to get a stable overclock to 3.6 and beyond once I have a better grasp of the beginnings... The bit-tech website and the youtube video were the most helpful, but for as many tutorials have been used for the same components I have, it's still a little unclear. I know that each person will have varing results... I just need the steps and an short explanation for the BIOS components... getting in to the DRAM timing etc there are a lot of options etc... and I don't' want to do anything stupid. So I'm looking to you and the community for help!

i7 920
Noctua NH-U12P
Asus P6T
EVGA GTX-295
Corsair Dominator 6GB 8-8-8-24 (1600)
Corsair HX1000w
CoolerMaster 840

The websites I've referenced so you know my research etc... not just some person wasting your time... I have done some reading.
http://hothardware.com/Articles/Overclocking-Intels-Cor...
http://www.tomshardware.com/reviews/core-i7-overclock,2...
http://www.bit-tech.net/hardware/cpus/2008/11/06/overcl...
http://www.extremetech.com/article2/0,2845,2335836,00.a...
http://www.neoseeker.com/Articles/Hardware/Reviews/asus...

http://www.youtube.com/watch?v=iwbzQblRQ7I&eurl=http://...

http://www.pureoverclock.com/review.php?id=685&page=7
http://i4memory.com/wp/article/327


Always overclock in the bios. I do not trust OC palm or overclocking from the desktop with oc programs. becuase you will not get as high as you want to get OC wise. Go into bios, go into manul AI tweaker mode, turn turbo off, up the Blk frequency in increments of two and test for crashes. You should have a very good cooler if you want a high overclock. As far as the memory I am just learning that phase. the 920 is the best over clocker at of the I-7 Core series. I have a 940 and I am 3.4ghz with a V8 Master Coller. I know I can go higher but I do not to test my luck.

February 18, 2009 8:56:29 AM

From what I have learned as a general rule of thumb for processor OC is usually the "smaller" processors of the series will have the most headroom for an OC. Obviously they cannot get the highest output, however they have the most headroom.

For Example:
Many people have an i7-920 @ 4GHz (although not necessary) running stable. clearly epic cooling is required - water. The i7-965 can reach 5.6GHz, which is rediculous, but the 920 has the most headroom. Does that make sense, or am I totally mistaken?

February 18, 2009 11:51:00 PM

I would say you're overestimating a bit. I would say with good air cooling (something like a TRUE), an i7 920 would get to around 3.6-3.7 GHz typically, and a 965 would get to around 4-4.1GHz (and yes, the 920 gets farther above stock). With good water cooling, the 920 would probably reach 4ish GHz, perhaps a bit higher, and the 965 would be good for probably 4.4.
March 29, 2009 7:01:04 PM

I have a 920 @ 3.8 on ziggy dark knight air, domimantor 1600 8-8-8-24 2T stable with temps ~65C load.

The only difference on P6T bios is I manually set the the cpu ratio to 20 and the bclk to 190 which gets the magic 1603 dram timing. HT is on, C1E, CPU TM, A20M all off.
!