Computer Won't Boot Up, Replaced PSU

September 27, 2010 at 19:21:53
Specs: Windows Vista, Intel Core 2 Duo E6600/OCZ SLI Ready 1G
While I was on the computer, surfing the internet, the screen turned black & "recovered" with a error message from NVIDIA-- a display failure & recovery-- but the computer froze, aside from the mouse, so I shut down manually by pressing, as well as, holding the power button for approximately 15 seconds. I did not restart the computer for two days.

Two Days Later: I pressed the power button, but the computer won't boot up! When I pressed the power button I got one of two responses: 1) no response AT ALL or 2) the lights & fans came on but do not run properly (flickered or ran slow) with a LOUD screeching noise!

Recent Computer Problems:
- A message when booting up the computer about the fan speed being too slow to start up
- Random crashes & a blue screen with a message about "compiling memory for physical dump"
- Not waking from sleeping, as well as, a LOUD screeching noise while trying to do so

I have blown the dust out of the computer case & fans, as well as, replaced the PSU.

When I booted it up, again, the LOUD screeching still remained but none of the other problems were apparent, the lights & fans are now working properly. However, when I shut it off and booted it up, again, the loud screeching had stopped but still nothing worked. No start up screen, no beeps, nothing.

Desktop/Laptop: Desktop
Operating System: Windows Vista
CPU: Intel Core 2 Duo E6600
Motherboard: ASUS P5N-E SLI
Video Card: EVGA NVIDIA 8800 GTX

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September 27, 2010 at 19:43:45
cpu fan is not spinning. bios detects failed fan and prevents bootup to protect cpu

Goin' Fishin' (Some day)

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September 27, 2010 at 19:54:26
I reset BIOS by removing battery and replacing, the LOUD screeching stopped when I did so.

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