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PC Boots first time but not second HELP!!

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  • CPUs
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January 22, 2012 5:22:35 AM

Hi ill post some specs first
Windows Vista 64bit
ASUS P5KC Motherboard
Intel Core 2 Extreme X6800 (just upgraded from Intel Pentium Dual Core E2180)
Kingston DDR3 1333 2x2gb
EVGA GTX 460
Antec Trio 650w PSU

I upgraded my CPU today to the x6800. The computer booted up the first time but when i shut it down and tried to boot up it wouldn't POST or load windows. I removed the CPU and inspected it... it seemed fine to me so i reinstalled it and booted up. Same thing again, booted up the first time but when i shut down it wouldnt boot the second time. Everything powers up the second time too.. the fans, hard drives... but no post or windows...

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a c 186 à CPUs
January 22, 2012 5:32:05 AM

Did you apply thermal paste?
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January 22, 2012 6:14:21 AM

Yes i did. I have a Cooler Master Hyper 212 cooling it. idles at 22c
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a b à CPUs
January 22, 2012 6:25:40 AM

did it have anysighns of doing this before the upgrade? if not id imagine it common sence to assume its the cpu it self alltho ive never heard of a cpu itself doing that
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January 22, 2012 6:31:06 AM

Last time i cleaned out my computer case, which was a few months ago with my old cpu, I took off the cpu fan to clean it thoroughly and i took off my cpu just to inspect it. when i booted it up it wouldnt but up so i took out the cpu again, inspected it and reinstalled it. It booted up just fine every time after that. Other than that incident no.
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January 22, 2012 6:32:45 AM

Do I need to maybe update or flash my BIOS?
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a b à CPUs
January 22, 2012 6:37:11 AM

might be your mb then aswell hard to say really should see what amuffin has to say about it before we really lead to what it is. if it did it before with your old cpu once it might be your mb but also hard to tell because that was only 1 time as you said
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a b à CPUs
January 22, 2012 6:41:42 AM

i know a hp of myne did that for a while, i had to reset the heasink itself rather than the thermal paste and cpu, just adding that in there
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January 22, 2012 7:47:39 PM

The CPU performance graph shows that it is constantly bouncing from 0 to 50% in a constant pattern... during the first boot of course..
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January 31, 2012 8:33:22 PM

Okay so I figured it out.. I had an older version of the BIOS so I tried flashing it using asus ASUSUpdate. DO NOT USE ASUSUPDATE. If will fail trying to flash your BIOS and it will basically wipe it out and u will have no BIOS. Had to get a new BIOS chip but with up to date BIOS on it already. This fixed everything. What a headache....
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