Need overclocking advice

[vizzini111]

Hi all

I need some help overclocking my i7 920

im running it with a:
i7 920 C0
ASUS P6T Deluxe V2
OCZ 1600mhz Platinum series 7-7-7 @1.65v
Coolermaster hyper 212+ cooler

I have been using a guide to overclock this, my goal was to hit 3.8ghz but the highest i can get it without it crashing when it gets into windows is 3.6

the guide im using suggests 1.25v is the max safest level to raise the CPU voltage to, so im not going above that, is that right?

it also has the voltage set to 1.2v for a 3.8ghz overclock however i have to have it set to 1.25v for a 3.6ghz OC, is this safe?

The software im using to monitor it is: CPU-Z, Everest, Core temp 1.0 and prime 95

The current ambient temp of the room is about 23 degree's

this is a screenshot after using Prime95 for about 45 mins, looking at that does anyone think im in trouble of burning my CPU and/or M/B out?




**edit

25 mins after i took the screen shot the temps on everest read:

Motherboard: 37
CPU: 62
Core #1: 72
Core #2: 71
Core #3: 68
Core #4: 67

Core temp reads: a max of 72 on core 1 and 2 and a max of 68 on core 3 and 4

also i read the x58 chips get very hot and they are safe so long as they are under 80 degree's, does that mean the CPU temp of Core #1 (which seems to run hottest


**Update: 1hr 30 mins of prime95

25 mins after i took the screen shot the temps on everest read:

Motherboard: 36
CPU: 61
Core #1: 71
Core #2: 69
Core #3: 67
Core #4: 67

Core temp reads: a max of 73 on core 1 and 72 on core #2 and a max of 68 on core 3 and 4

[Frozencry]

Your OC seems pretty solid. I'm hitting 75-80 on my 4.2 OC on my 2600k, so yeah you should be well within threshold as the X58's tend to be fairly easy to keep from overheating lest you're doing some extreme OC's.

Setting 1.25 for a 3.6 OC should be safe, it just means you're pumping more power into it. You don't want to go over what they consider safe voltages though as that will almost certainly do some damage, so be careful with that.

If you're maxing out at about 3.6 and are unable to move further, you'll probably need to get some better cooling then. Remember that reviews and OC tests are based on situations where the room is also at a good level of ambient temperature, so OCing to high levels is a lot easier. There's a tonne of things to take into account when it comes to an OC such as that.
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[Appel]

Hey Denny, i've got a 2600K as well and was wondering how would you go about over-clocking it? What's a safe OC?

I've got pretty good airflow and a CoolIT Vantage Water Cooling Kit on the CPU.
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[Frozencry]

I'm lazy and have all my OC'ing done by pressing a button on my mobo, **** you not. But with that said, you can usually get em to about 4.4 on air and still have stability. I'm running stock cooling and it's at 4.2 with 1.361V, so you should be able to crank the 2600k up to a pretty decent OC.

As always, use a guide to help you get overclocking, but only do it if you really need it (though considering you're also running a triplehead build, it will definitely help clear out some bottlenecks as I've seen it from experience).
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[Appel]

Thanks. I'll look into it.

Next week, the computer will be complete. Well, minus a decent keyboard and mouse. But i'll post some pictures then.
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[vizzini111]

Looks like my overclock wasn't so solid after all, I went out tonight to the in laws and left my computer running while i was gone (just idle) and when I got home had a message saying overclock failed, please enter setup

I'm assuming that means my chip is not able to be overclocked? what could of caused that sort of crash

at idle the temps were around 28-32

Would it be an issue if i left all the RAM timings and voltages on auto and just bumped up the BCLK frequency?

[Puddingfork]

Your voltages were probably too low, do some more research. Overclocking isn't as simple as following a guide, no two CPUs are the same and you've got to know:
-Save temps
-Safe voltages (Too high and you'll destroy your CPU fast)
-Spend hours testing for errors (a minimum 2hrs in prime95 for each adjustment, 6-18hrs when you think you've got a good clock imo)
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[vizzini111]

^^today when i was doing all the tests i had no errors after i finished the tests i was playing f1 2011 and AC brotherhood for about 4 hrs without any fail or spikes in temps

does that basically mean my voltages are the only thing left that it could of been? why wouldn't an error of come up while the computer was actually under stress? because its obviously happened while it was in sleep mode

do you know of any websites that give good tutorials on the ins and outs of overclocking, everything i find on google is people clocking to 4ghz + which is not very helpful to me

**edit

i've currently left everything the same except put the blck down to 170 leaving it at a 3.4 OC and have been stressing for 1hr and 20mins so far the highest CPU temp using everest is 52 degree's

[thebigm]

There's issues with overclocking and the lower power states if the CPU tries to downclock itself (i.e. lower voltage or multiplier).

This would be what happens in the sleep states and basically, it can drop the voltage low enough to be unstable. Hence a lot of things can vary with overclocking, and trying to get the best out of a chip may require you to disable power saving features. And continually test and tweak till you find something that works.

As a note to those on 2600Ks, I'm on 4.4GHz and 1.34V, hitting about 65C on air (aftermarket Noctua C14 with low noise/undervolted fans).

[vizzini111]