[jmf3rd]

Last night while using my computer, the video froze, but I was still able to use move the mouse pointer on the screen. The computer would not respond to any keyboard commands, ctrl-alt-del resulted in the "starting application" cursor ("arrow+hourglass") for about 1 second.
After a minute or so, the system just powered off. Pushing the power button had no effect.
I noticed that the fan in the power supply was still spinning. I unplugged the PC, plugged it back in, and the power light came on, fans spun up --- and then it powered down again, again with the power supply fan spinning. It contued to spin for 30-45 seconds.
It remains in that state. The power switch has no effect at all unless the machine is unplugged, then it will provide power for .5 seconds or so.

Enermax EG701AX-VE-SFMA Noisetaker 600W Power Supply
Asus P5WD2 Premium Motherboard
Intel Pentium D Processor 830 3.0 GHz, 800 MHz FSB
ATI Radeon X850 Pro PCI Express
1 Plextor PX-740A 16X DVD R/RW CD-R/RW
1 Western Digital Caviar SE16 WD2500KS 250GB SATA 7200 RPM
1 Western Digital 200GB PATA 7200 RPM
1 3.5" Floppy
Zalman CNPS7700-Cu Coller
2 120mm case fans (Bottom front, top rear)
1 80mm case fan top vent
40mm fan behind each harddisk

Any ideas???
Thanks

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Will the machine boot when you unplug all hardware except for monitor and keyboard+mouse?

Also, if you have more than 1 stick of memory, remove them all but one.

Any luck?

[emery]

Will the machine boot when you unplug all hardware except for monitor and keyboard+mouse?

Also, if you have more than 1 stick of memory, remove them all but one.

Any luck?

[jmf3rd]

Pulled everything out, turned out it was the video card.
Fan on it went south -- gotta call ATI, it's only 8 months old.

Thanks for the advice.

[emery]

Glad you found the cause of the problem.