Is it the motherboard or power supply problem

Update (same as before but more detail): If you remember my old topic, my cousin's computer recently went dead after he turned it off. We initially thought it was the PSU, but that worked with the old eMachine. So is it the motherboard that is dead? Or the PSU simply can't supply enough power?

PSU: MGE Viper 500w PSU
Athlon 64 2000+ 2.0GHz
GeForce 6600 GT PCI-E
1GB PC3200 RAM
Maxtor 200GB HD
Pioneer CD-RW/DVD Drive
Bunch of other fans that came with the case and the temp display (108F before the computer stopped working)

We got all these parts in one order from NewEgg, and we don't know if we can send in individual parts instead of the entire order...

So is it the motherboard or the low quality MGE Viper 500w PSU?

Update: Alright, my cousin can't disconnect the video card and processor due to him being afraid or not having the right tools, but he said last time he tried the eMachine PSU on this new computer. Apparently it powered on the fans and hard drive but nothing else. Than again, he could be confused. I've heard MGE Viper PSUs suck, is it possible if it blew out, it wrecked everything other than the fans and hard drive?

BTW, this happened after he turned it off, the system didn't stop working during computer use. He's to lazy to leave a message for me with the result. So I'll get an exact answer (if he does it) when I get home tonight.

Try asking in the motherboards.org support forum. Never failed me yet.

It's taking forever to get my confirmation e-mail...can someone ask for me?

Fans and drives spin up, no beeps? Probably dead board, processor, or both. Whats even more fun is that whatever is bad, you have the risk of blowing out replacement hardware finding out whats bad. Also have him pull out the PSU(the MGE Viper) from the system, plug it up, get a paper clip and connect the green wire and any black wire. That'll tell him if his PSU refuses to turn on anymore.
(like so http://xtronics.com/reference/atx_pinout.htm )

You can do an RMA for multiple items and ship them in the same box (atleast for NewEgg). Make sure you label everything properly. Last time I RMA'd like two mobos, I printed out both RMA sheets and included them in their respective boxes.

I've been copying and pasting from forum to forum so the original message may be sketchy.

The MGE Viper PSU apparently works for an older eMachine, but not for the new computer now. The details on the old eMachine's PSU to the new computer is vague because my cousin can't even remember whether he tried it or not -_-

Will we get shocked if we do the paper clip thing? What's supposed to happen? What do you mean by "plug it up"?

I foolishly threw away much of the original packaging (other than the boxes, CDs, cables, manuals) for the components. Anyway they'll still accept it for exchange/refund? Anyway to find out if the other parts are damaged too?

Only way to check what is bad is to see if there are any physical defects, if there are any, or test it in working hardware. Very rarely have I been able to spot physical defects on things though with the exception of like a scorch mark on the processor underside. BTW if the PSU powers on an another machine, the PSU is probably fine. Board or processor is probably toast.

About the PSU (although this probably doesn't matter anymore), your cousin won't get shocked. I've done this plenty of times and the only pins you connect are the PSU on and ground pins. What I mean by plug it up is to plug power into it.

And as far as RMAs go, I usually keep boxes to all my stuff. You'll probably be able to get away with it. Maybe email their support staff to see if thats ok.

One guy from NewEgg said we basically needed the serial # on the shrink wrap (although he said he wasn't completely sure). The other lady said that as long as we had most of the stuff, we're fine, because the serial # is on the boxes...although she hesitated when she spoke that bit..

Also, is it possible something is shorting out the motherboard (permanently?) We couldn't install all the screws and we haven't tried the "minimal install" (one RAM stick, processor, and motherboard on non-conductive surface).

We've basically packaged everything up in newspapers and Ziplock bags into the original boxes...I'll see if my cousin will try this one last test.