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Need help with 2500k @ 4.5ghz

post #1 of 7
Thread Starter 
Yea I need help keeping my 2500k stable @ 4.5ghz
I can run games and fold for 24hrs straight but two hours in prime95 and bsod 124 error.
Anything I can try?

Heres my settings
LCC: enabled
Vcore @ SVID which is 1.355v
All other voltages auto and using XMP memory profile.
Power saving features disabled and i have HPET disabled (don't know if these matter)
I have also tried changing the VTT/QPI voltage from defualt to various values between 1.08 and 1.2v with no difference.

I have also run the HCI memtest for an hour or two with zero errors.

Oh and temps max out at 65C for one core all the rest being lower.

The only thing I could think of is increasing the vcore since it does drop to 1.332 under load but I really don't want to go over 1.355 before I try everything else.

Any help would be appreciated.
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post #2 of 7
Scoot it towards 1.4v for vcore. Yes, I know you don't want to do it, but unless you lower your clock, it won't be stable. The 212+ will have no problem cooling it.

edit: The max safe voltage for those CPU's is 1.52v
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post #3 of 7
Have you try to enable PLL overvoltage in the BIOS?
post #4 of 7
Don't go to 1.4 right away.

I know that 1.355 is suppose to be the magic number for a 4.5ghz 24/7, but not all Sandy Bridge chips are the same.

I would try 1.36 vcore, and then keep increasing increment of .10 until you fully get stable. Try to leave LLC at default or somewhere in the middle. And make sure the multiplier is at 45. Check ventilation/fan as well.
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post #5 of 7
Mine requires 1.356v for 4.5GHz. But I have to set it to "1.360v" in BIOS so it stays at 1.356v under load. Try 1.360v, yourself.
Edited by Diabolical999 - 6/2/11 at 5:29pm
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post #6 of 7
strange mine only needs 1.34 for 20 runs of intel burn test. LLC at level 6.
all u can do is increase vcore or lower multiplier. i see according to ur sig that ur stable at 4.4 GHz 1.34v. that's a good overclock, maybe stick to that instead?
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post #7 of 7
Im at 4.5. 45x100/1.368
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