no video

Have you tried booting from a Floppy? What OS?
I am going to assume that you have tried a different Hard Drive, if not, you should.
It may also be a BIOS issue,do you have the latest (and correct) BIOS?

How about the power supply?

Sounds like you have ruled out everything else.

If you have a volt meter, you can check that all the voltages are correct.
Or, just swap it out.

Chas

How about the power supply?

Sounds like you have ruled out everything else.

If you have a volt meter, you can check that all the voltages are correct.
Or, just swap it out.

Chas

How about the power supply?

Sounds like you have ruled out everything else.

If you have a volt meter, you can check that all the voltages are correct.
Or, just swap it out.

Chas

Good one Chas. I ruled it out (bad IT mistake)because he said he'd replaced the MOBO and processor. He did say the fan worked though, would it be because the fan is such low voltage yet the power supply connectors may be not providing ample power for drives?

P.S. Do you have a dirty mouse with a sticky button? Click, Click, Click.

The only thing left is the power supply. That's an easy replacement.

If you have a meter check the DC voltages of the power supply. Should be +12,-12,+5,-5 give or take up to 10%. Also check that the cables that go into the white mollusk connector from the power supply to the mother board (maim MB power) has all the connections seated all the way. I've had problems with some of these connectors that have 2 wires stuffed in the same hole.

Hi and CLEAR THE CMOS by the jumpers.
REMEMBER the power is to be disconected when clearing most new MB cmos, it clears using the battery.
You may have a shorted MB at a screw down post?? Have you tested out of case on the bench??
I hope this does help. fred

Hi,

I have not seen any mention of changing the ram. Did I overlook this or has this not been tried?
The original system could have also suffered mulitple failures, such as from a lightning strike or power surge. Try testing the original power supply, CPU, ram, video, drives, ect. on a "known good" motherboard, one piece at a time. Bench jig the known good motherboard and start with the power supply. Test each component until you find the failed item(s). Should each piece pass the bench jigtests, try putting the now confirmed good items on the original motherboard, with this board set up bench jigged ( out of the case ). Should everything now work, I would suspect the motherboard is going to ground in the case. Check for a metal standoff where there is not a mounting hole for the motherboard or anything else that could cause a grounding issue.

I hope this helps