ASUS P4S800 - dead after air blast!

[sidespar]

I have a ASUS P4s800 with a P4 3.0E GHz prescott.

Recently I took a air compressor and blew highly compressed air all over it to get dust out. After plugging it back up, it doesn't work anymore.

Initially it turned on for about 1 minute, no screen output, then turned itself off. I turned it on again, and it did the same thing - made a funny smell.

Then it won't turn on at all. When you hit the power switch, the cpu fan shakes a little bit, but nothing happens - no fans, drives, etc.

So I tested the psu, it's good. I swapped in another CPU, no difference, so the CPU is good. Which leaves me with the mobo.

If i disconnect the ATX12V 4 pin connector, the the computer turns on and the CPU fan spins (no cpu power so it doesn't do anything of course). But when I plug this connector back in, nothing happens.

Any idea what I did when I blasted it with air? All the caps and coils look ok. No physical burn marks.

Where do I get another socket 478 mobo for my processor? I can't find the p4s800 anywhere. Anyone got one laying around? ASUS won't RMA it.

Thanks.

 

[evongugg]

Remove the battery for 30 minutes.
Try again.

 

[evongugg]

Check for missing jumpers on the motherboard.

 

[blackwidow_rsa]

You built up static, it mustve damaged the motherboard somehow. SOL, i'd say. Try ebay for a board

 

[sidespar]

Don't see any missing jumpers and I removed the battery and replaced. Still nothing.

Based on my failure, what do you think got toasted? I've got a complete electronics lab with scopes and irons, so if I knew where to look, I could replace the f'ed up component. But the mobo is so complex, I have no idea where to start. Especially without a schematic.

 

[allhands]

Have you tried disconnecting all other components on the mobo (video card, sound card etc, memory etc) and seeing if you get any results. The problem may lie somewhere else.

 

[sidespar]

Yep, I even tried to the board on the bench by itself.

 

[beginner101]

I work with compressed air, you are lucky a piece of metal didn't fly in your face. If the air gets to a closed space it can have amazing force.
You will never know what damage you caused, its too powerful.

 

[sidespar]

Yeah, I learned my lesson. It did get all the dust off though!

I went ahead and built a new quad-core system. It was time. Although everything else in this computer is nice and I would like to get it running for a linux media server box, so if anybody has another p4 mobo socket 478 that would work with my processor, let me know!

Thanks