Overclocking i7 920

[DLoaderMega88]

I have a comp ive had for awhile and I just wanna push it to the limits so i can get the best out of it with what i have

Specs:

i7 920 D0

Asus X58 Rampage II Extreme

Cooler Master V10

Corsair 12gb 6x2gb 1600 dominators 8-8-8-240

Cooler Master Real Power Pro 1250 watt

Asus 5870 Matrix

Ive been putting some crazy voltages through the thing, and ive seen a tone of reviews. I tried a ton of different settings but maybe this time around with all your guys help, I can finally get it to run screaming fast

Any basic settings I should try first? I wanna try to get 4.2ghz with 1600 memory. Is that even possible with my setup or am i just crazy?

 

[SkinToxicated]

head over the core i7 overclocking thread. that where i went to overclock my 920 D0 (i got 4ghz with 1.3 volts). and the guys were more than accommodating in sharing knowledge.

Mine is running at 4Ghz thanx to these guys

Give some details of what you have managed so far, they these guys will help you out getting the best from your system

 

[DLoaderMega88]

thanks alot, i just posted up there

 

[TMaksimov]

Not every i7 can do 4.0 at decent volts despite what people say. I, for one, have a really poop 950

 

[hmmblah]

I had a really bad 920 C0 that couldn't clock past 3.6GHz. My 930 in the same board has benched at 4.4GHz on air so I know it's the 920 that's the weak point. It's in my work rig.

 

[DLoaderMega88]

yea i can punch it in at 4.2 but the voltages im putting through it are insane, i would need much better cooling but was just curious to what people would recomend me try

 

[Johnny Rook]

I had a really bad 920 C0 that couldn't clock past 3.6GHz. My 930 in the same board has benched at 4.4GHz on air so I know it's the 920 that's the weak point. It's in my work rig.

I also had a 920 C0 that I bought in November 2008 and put on water. It went to 3.8Ghz without a glitch but, to get to 4.0Ghz it needed 1.5v in Gigabyte's X58-UD5 BIOS (~1.47v in CPUZ).

Now, I have a 920 D0 on a UD7 and it OC to 4.2Ghz @ ~1.36v (1.344v in CPUZ). That's an huge difference.

yea i can punch it in at 4.2 but the voltages im putting through it are insane, i would need much better cooling but was just curious to what people would recomend me try

As you know, all the CPUs are different and respond in particular ways to overclocking and even to the same motherboard/BIOS they are in. Maybe you just didn't have luck...

You don't tell what vCore voltage you're applying but, I suppose you're also setting the QPI/vtt voltage according.

Usually, the QPI/vtt needs at least, 1.355v @ 4.2Ghz, depending on what board is used.

With your RAM, there's no need to change any timings or voltages @ 4.2Ghz (200*20 + Turbo Enabled), as long as you leave it "stock" (1600Mhz).

It may also be required a little pump-up in IOH core voltages (in ASUS boards like yours, I recommend pumping the ICH core to same voltage as IOH): something like 1.16v or 1.18v @ 4.2Ghz.

Anyways, if you are using the stock cooler, I do not recommend messing with the vCore voltages at all.

Good luck

JRook

 

[cbiltsouris]

my i7 volts are a little odd tbh

it uses 1.28v for 4ghz, 1.31 for 4.2 and 1.345v for 4.4

havent tried 4.6 yet

 

[Miikkii]

Well you will need a base clock of 200 to get to 4.2Ghz if I remember correctly, the multiplier being 21?

I wouldn't want to run any more than that constantly on a day-to-day basis, especially if you want it to last a year or two. Also try not to worry yourself about overclocking the RAM's frequency, keeping it around 1600Mhz will make sure that your OC is stable and keep you on track. I got carried away with it and was wondering why my OC was never stable, discovered I tinckered with my memory a little more than I needed too.

 

[cbiltsouris]

ive never reached over 70 degrees