Did I just kill my CPU?

JaguarSavage

Senior member
Jan 6, 2001
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I purchased parts for a new system and put it together last night. I have a Q6600, Asus P5K-E, ballistix 800 2x1gb, and a EVGA 8800 GTS.

I installed all the parts and the system booted fine the first time and I set up my OS and played Bioshock for about 4 hours (very nice ;)) with no problems. Since I had gotten the G0 revision of the Q6600, I then wanted to see how well it would overclock. I first tried 2.6ghz at 280x9 and it seemed fine. I wanted to push it a bit further and tried 2.9ghz at 322x9.

It hit 2.9ghz with a 1.3V and it seemed ok but I wanted to try a lower voltage so I tried 1.15v while keeping it at 2.9ghz. It booted ok, tempuratures were ok (95F) and I thought I was good to go. I left it 2.9ghz/1.15V and went to sleep for the night with the system running.

When I woke up this morning, the computer was powered down and now I can't get it to power on. The motherboard has power according to the power LED on the board but no fans, hard drives, or anything turns on when I hit the power switch. I've tried re-seating the processor, ram, video card, everything I can think of, but it still won't power.

I'm guessing the CPU got blown somehow. Did I noob it up and and overclock too soon or was the voltage too low?
Any advice/suggestions would be appreciated (though I don't currently have any spare 775 cpus to confirm just the processor is dead).

Thanks
 

Rebel44

Senior member
Jun 19, 2006
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Its unlikely to kill your CPU because of too low Vcore it will usualy only restart PC - did your reset your BIOS?
 

JaguarSavage

Senior member
Jan 6, 2001
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Well, the P5K-E doesn't really have a clear CMOS jumper. The only jumper it has only clears the real time clock (RTC). The mobo is supposed to 'detect' if any BIOS settings are not working and reset them to default. I have tried resetting the RTC jumper though.
 

Amaroque

Platinum Member
Jan 2, 2005
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When you reset the RTC (CMOS) jumper, you should remove the battery on most MB's.

I know that the ASUS MB's are supposed to auto reset, but it doesnt always work, espically if your RAM settings are too tight.
 

JaguarSavage

Senior member
Jan 6, 2001
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Thanks for the reply. I tried this: unplugged power cable, removed battery, set jumper to clear, waited 25 seconds, set jumper to normal, reinstalled battery, plugged power cable in and tried to power. It still won't power on unfortunately.
 

Amaroque

Platinum Member
Jan 2, 2005
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Try waiting 10 minutes with the battery out, jumper set to clear, and of course unplugged with the PSU off. I've had to do that in the past.

I know the book doesn't say that, but it's worked for me before.
 

JaguarSavage

Senior member
Jan 6, 2001
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Originally posted by: Amaroque
Try waiting 10 minutes with the battery out, jumper set to clear, and of course unplugged with the PSU off. I've had to do that in the past.

I know the book doesn't say that, but it's worked for me before.
I let it sit for 20 mins but still no go :(

Originally posted by: Pain999Any POST beeps? Most likely either your motherboard or power supply failed.
Nope. Like I said, no fans or anything powers up so no beeps at all.
 

Amaroque

Platinum Member
Jan 2, 2005
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Sounds like the PSU crapped out to me. But you may want to wait for other opinions.

You could also try unplugging the PSU from the MB for 5 mins, and retry. If that works, then your PSU is under powered for your setup.

BTW: What PSU are you using?
 

JaguarSavage

Senior member
Jan 6, 2001
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Yeah, I suppose it could be the PSU. At first I didn't consider that because the mobo was getting enough power to turn the power LED on but that's it. I don't know enough about power supplies to know if it could break to the point that it can still supply enough juice to turn on the mobo LED but not startup the system.
 

JaguarSavage

Senior member
Jan 6, 2001
205
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Alright, thanks for the responses. I'll borrow a PSU from the office Monday to see if that's it and post what I find.
 

myocardia

Diamond Member
Jun 21, 2003
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You can't run highend computers with $2.50 psu's, man. And yeah, it's your power supply.