Hero To Zero

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Joined
10 Sep 2010
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1,533
Location
Cornwall, England
Hey everyone, So in the race for a bigger E-peen I've been pushing my Core i7 920 and recently managed a respectable 4.2Ghz (200 x 20 + Turbo and HT), I had it stable as a large rock.

Sadly my brother has a much better chip than me and managed 4.3Ghz (with less volts than I need at 4Ghz) so obviously I wasn't happy with that and thought I'd atleast attempt to match his 4.3Ghz OC.

In the BIOS I set my multi to 21 x 190 BLCK to give me 4.1Ghz and I'll leave tubo on to give me 4.3Ghz, I wanted to make sure it would at least boot so I set the Vcore to 1.425V, QPI to 1.395V, IOH Core to 1.220V, DRAM to 1.66V and set some others but I can't remember what there called.

Hit F10 to save and quit only to find that my PC wouldn't post at all, just kept power cyclying (powered on for about 3-4 seconds then restarting), I hit the Clear CMOS botton and tried my orginal 4.2Ghz settings that I know are stable, But still no joy, I then tried 3.8Ghz with my 4.2Ghz voltages... Still no joy. Sad times indeed.

I'm typing this at stock speed

Now when I boot I can hear coil whine that I couldn't hear before, and when I move my mouse I can hear coil whine... Did I damage something?

Could really use some helps please!
 
Looks like you slapped in too much voltages...

I would try your CPU on your bother's system. Hopefully it's just the motherboard causing the problem.
 
I've put 1.5V Vcore through it before and it was fine (4.6Ghz screenshot) although I've never put 1.395V QPI through it.
I'll test my chip on my brother's PC at the weekend.
 
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