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Faulty i7 920?

post #1 of 25
Thread Starter 
I received a i7 920 / EVGA x58 3x SLI combo today (bought used from eBay).

At everything stock, untouched, I get BSOD during Prime95. If I bump CPU Vcore by one step, it ran for 15min successfully.

Is this a faulty chip if it won't even run successfully at stock settings?

Temps are not an issue. Running liquid cooling.

EDIT
To get it from stock 2.66Ghz to even just 3.0Ghz, I'm having to bump VCORE up from 1.28125 to 1.29375 and CPU VTT from 1.15 to 1.175. Should it not be OC'ing this much on stock volts?
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post #2 of 25
run memtest?
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post #3 of 25
Thread Starter 
Quote:
Originally Posted by robbo2 View Post
run memtest?
Ok. Trying that now.
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post #4 of 25
Some triple channel memory need 1.35 QPI voltage as standard when using XMP profiles.
post #5 of 25
seems to be voltage
Edited by M1 Abrams - 1/11/11 at 7:18pm
post #6 of 25
Thread Starter 
Quote:
Originally Posted by kylzer View Post
Some triple channel memory need 1.35 QPI voltage as standard when using XMP profiles.
Its on 1.1 at stock. I'm using corsair XMS3 CAS9. Rated at 1600, but I'm running it at about 1200. I undercclocked it for the duration of OC'ing the processor. Should I try bumping QPI voltage?
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post #7 of 25
Have you manually set all voltages in BIOS? Also what's your ram voltage at in BIOS?
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post #8 of 25
Thread Starter 
With everything at stock, I was just running the windows version of Memtest and got BSOD. Gonna run a thorough Memtest now.

No, didn't ste voltages manually except for RAM which is 1.65.
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post #9 of 25
definitely sounds like the RAM is causing the crash.

report back when you find out what memtest says.

there is no reason a stock i7 920 should fail on auto--thats how they were to designed.

If it was OCing that would be a different story...
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post #10 of 25
Is it C0 or D0 stepping?
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