Is this a new problem? Were things working OK previously? Any new hardware and or software?

If you can't boot you can't run those scans. I just mentioned in case you could boot. You had mentioned that you could get in before it began to slow down.

You can not just put in another hard drive with another XP on it and boot.

0x0000007B: INACCESSIBLE_BOOT_DEVICE

"Windows lost access to the system partition or boot volume during the startup process. Typical causes: Installing incorrect device drivers when installing or upgrading storage adapter hardware, or a virus."

In order to use a different hard drive you would need to reinstall XP onto it while it is on the motherboard.

If it is a heat issue it would be the CPU or Graphics Card or less likely the PSU.

So at this point what happens when you power on the computer?

Does the BIOS POST run? Does it just fail loading XP? Can you still boot Knoppix?

Can you boot your XP CD?

115 Volts is your house current (unless you are in Europe)

If you suspect heat then disassembling the CPU fan/heatsink/etc. would be good yes.

Clean it up and try new paste.

http://www.arcticsilver.com/arctic_s...structions.htm

http://www.dansdata.com/goop.htm

http://www.techwatch.com.au/reviews/...thermal_paste/


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