No power up

Here was the fix for me. The machine refuses to boot if the video card is not functioning. It should have one long beep however to tell you that there is a video problem. Someone hooked up our speaker incorrectly though! So we got no beeps. Once the speaker was hooked up and the video card was replaced, all is well!

Are you hearing any beeps, or can you get into the bios, to check that it is recognising your harddrives.

Secondly check cmos battery it may be flat.

It may also be halting on all errors, you can turn this off by entering the bios(press F2 or DEL on start up) then entering the 'standard cmos features' or settings; then dissable 'Halt on all errors'.

This will then show on the start up what the problem is.

All this is of course if you can get as far as the bios menu.

If there are 2 beeps which says memory ok, setting ok, then the CPU has died.
One beep means normally memory problem, but you will have to check beep codes with your motherboard.

I have the exact the same problem here. I checked my battery and it is ok. I think it may be the onboard videocard that fried because my monitor hadnt a connection to ground earlyer.

Same problem here.
The CPU-fan, fan on the videocard and the fan of the power supply run immediatly when the power supply is turned on. No beeps, no display. Nothing happens when the reset button or the power button is pressed.

I found out the HDD, CD and DVD start up when disconnected from the mobo. If connected to the mobo neither one starts up.

I replaced the battery with the one from my calculator. (calculator works with both batteries).

I tried a different power supply with the same result.

Any ideas?