I7 920 Overclock

[Dominaeus]

Hey Guys,

I recently built my first computer with the follow components;

ASUS P6T Deluxe V2

ASUS ENGTX260

CORSAIR 620HX

Intel Core i7-920 Bloomfield 2.66GHz

2x CORSAIR DOMINATOR 6GB (3 x 2GB)

Western Digital VelociRaptor WD1500HLFS 150GB

Western Digital Caviar Green WD10EADS 1TB

Noctua NH-U12P SE2 120mm SSO CPU Cooler

Everything went together great and has been up and running.

I noticed that my cpu was running at 2.67ghz and my memory at 1071mhz.

I decided to follow this video guide here: http://www.mefeedia.com/entry/asus-p...cing/12157000

Ai Overclock Tuner - Manual
Intel(R) Speedstep(TM) - Disabled
BCLK Frequency - 190
DRAM Frequency - DDR3 - 1523mhz
CPU Voltage - 1.35
DRAM Bus Voltage - 1.66

Now when I put in these settings I can't boot into windows, but if I change the DRAM Bus Voltage to 1.64 I'm able to login to windows and then it crashes.

Now my questions are

Is my problem these BIO settings or is my PSU not powerful enough?

Do I need to upgrade to HX850w or HX1000w PSU to achieve these settings?

 

[balanovich]

Your PSU should be enough...
verify with this http://extreme.outervision.com/psucalculatorlite.jsp
I watched the video and it doesn't say everything. It shows you how to OC the RAM, but doesn't talk about the CPU itself.

You should check this guide.http://www.tomshardware.com/forum/253365-29-core-overclocking-guide Maybe you missed a thing or two.

What are your last OC settings that worked ?

Did you benchmark your gaming with stock speeds ? with OC speeds ? at 3.6 GHz ?
Was there a big difference ? With a GTX260, there won't be a lot of difference. OC it to 3.2 maybe 3.4 and you'll get a little boost, but going further is useless. It will keep your cpu healthier.


*I checked the PSU calculator.... You should be able to boot and even do desktop work.... but it won't support overclocking as heavily as your are planning.

 

[pluke the 2]

Hey Guys,

I recently built my first computer with the follow components;

ASUS P6T Deluxe V2

ASUS ENGTX260

CORSAIR 620HX

Intel Core i7-920 Bloomfield 2.66GHz

2x CORSAIR DOMINATOR 6GB (3 x 2GB)

Western Digital VelociRaptor WD1500HLFS 150GB

Western Digital Caviar Green WD10EADS 1TB

Noctua NH-U12P SE2 120mm SSO CPU Cooler

Everything went together great and has been up and running.

I noticed that my cpu was running at 2.67ghz and my memory at 1071mhz.

I decided to follow this video guide here: http://www.mefeedia.com/entry/asus-p...cing/12157000

Ai Overclock Tuner - Manual
Intel(R) Speedstep(TM) - Disabled
BCLK Frequency - 190
DRAM Frequency - DDR3 - 1523mhz
CPU Voltage - 1.35
DRAM Bus Voltage - 1.66

Now when I put in these settings I can't boot into windows, but if I change the DRAM Bus Voltage to 1.64 I'm able to login to windows and then it crashes.

Now my questions are

Is my problem these BIO settings or is my PSU not powerful enough?

Probably your Bios. Your PSU is fine.

Do I need to upgrade to HX850w or HX1000w PSU to achieve these settings?

No, you do not need to upgrade.

I feel like you just jumped into these settings? Because your CPU Voltage is pretty high, what temps are you getting in your bios screen? If I were you, especially since you have expensive components, I would read the guide to overclocking and take everything back default, and do stepping stones.

 

[mizzl]

I feel like you just jumped into these settings? Because your CPU Voltage is pretty high, what temps are you getting in your bios screen? If I were you, especially since you have expensive components, I would read the guide to overclocking and take everything back default, and do stepping stones.

Yeah, what he says 😛

 

[JackNaylorPE]

I'd start by verifying your memory. Set BCLK to 160 (CPU multiplier Auto) and memory multiplier to 10 and run memtest4.0 overnight.....if that passes try BCLK = 200 (CPU multiplier 20) and run overnight. If that passes ....

The Asus ROG boards have a feature called CPU Level Up which auto overclocks all the settings by changing 1 line in the BIOS. By telling my 920 to act like a 965, here's what it did:

CPU Multiplier - Auto
BCLK - 160
CPU Voltage - 1.3125 (reads 1.304 in CPU-z)
QPI/DRAM Core Voltage - 1.3875
DRAM Bus Voltage - 1.56406

From there .... Jumped to BCLK of 165, no issues ... continued w/ no changes to BIOS other than jumping BCLK by 3 .... 168, 171, 174, 177 etc ...... I tested w/ prime 95 for an hour after each one....when I tried 180, I had issues in windows. Haven't as yet figured out why. Had a BSOD at 177 so scaled back to 175 .... lowering any voltage even one notch fails in windows. Going up did nada for me.....still working at it.

If you want an ideal OC guide for Asus Boards, lookie here:

dang, site down .... go to asus site, go to forums..... go to Mobos....see "Most Important topics thread.....click on the OC guide at top.

 

[nottafanboy6954]

There are some basic rules of thumb here that it looks like you may have overlooked as well as some points where I agree with the previous posters. It does look like you jumped right into those settings without considering taking it slow to backtrack.

Just because your buddies i7 overclocked to 4Ghz on air with no voltage adjustments, doesn't mean yours will. Every chip is different and some are much more stubborn than others. 1.35v can create some pretty healthy heat from that chip so take it slow and monitor your temps, 5Mhz at a time can make it easier to make adjustments from than almost 60.

You had also mentioned that your RAM was running at its likely default 1066Mhz, that means that you are probably now exceeding that by a fairly healthy margin. A good deal of overclocks fail on this principle alone so eliminate it from your possibilities and lock it down to 800 or so and go from there.

Keep a journal, yeah I know this sounds involved but it can help you determine the exact change that caused stability problems so you can assess whether to throw more voltage or to disable a feature that may be in your way.

 

[pluke the 2]

Notta & Jack well put guys