Jim - Computer issue

[Jaxs]

Last night my computer just shut down. Seems it re-booted itself when I was out of the office.
Then when I was using it, putting in a flash drive, it shut down.

On reboot it would not find C: drive and was looking for a boot drive.

I tested my digital C: drive and it works.

I unplugged all the digital hard drives and left only the C: drive connected.

Computer booted fine.

Reconnected each drive one at a time and system was fine.

Burned a CD of my work, checked my mail and shut down for the night.

Today, I power on and the fans come on but I get no video signal. I am not even getting the P6T blue motherboard flash screen.

Checked out the monitor on other PC. It works fine.

I have removed the video card and replaced it with a spare. Still no dice. I can not test the video card in another PC as they are not compatible.

Did this Mother Board fail. Was it Failing yesterday?

How do I test.

I am relegated to a lap top for work now. Yikes.

[Lastat]

I had a mobo fail on me, it was apparent because most of the capacitor tops were raised. Can you prevent all the optical drives from spinning up on boot? May be the power supply? i have been through 3 with this tower in the last 3 years.

Good luck.

[Shadowjack]

It could be the mother board or the PSU. I would try to swap out the PSU first and see what happens.

[Jaxs]

Computer fixed. Remove this little watch battery and switch a jumper back and forth and Bingo.
I am not sure I understand it all but it worked. Tech said sometimes computers get confused.

[Lastat]

MAGIC!!!