Power supply was going bad.

[mingsoup]

So the power supply on my Sonata case with Antec power supply was starting to fail. I heard a loud whining from the power supply when on, and the computer would not boot, but just hang after power on with all lights on the machine holding (such as the dvd rom activity light.)

So I grabbed a spare PSU, plugged it in, and the chine booted. So for some reason (I don't know why) I plugged back in the old psu. The room filled with invisible smoke and the smell of firecrackers was everywhere. I also heard long sparks going in the PSU. I powered down.....that PSU was definately dead. Plugged the spare PSU back into the mobo, and it won't turn on.

I check the case switch in another computer, and it turned on the other computer fine. I've checked its plugged in fine. The LED on the mobo does come one.....just no boot.


Is the mobo shot? How can I tell for sure? Ideas?

Thanks.

 

[ELicious]

I bet your bad PSU killed your mobo. If you ever suspect a PSU is failing, I would not test it on a valuable machine.

 

[robisbell]

you've damaged any or all of the following, and doubt warranty will cover it:

CPU
RAM
Video Card
HDD(s)
Optical Drives
Motherboard
any other components in the expansion slots.

the parts may work for a while in another system but are pretty much guaranteed to DOA.

 

[Quiksilver]

^^^ What he said.

It really depends on what line the voltage spiked down and took out :S Either way you have one expensive fix ahead of you.

 

[mingsoup]

i HATE PSUs.

Things I've had fail on me multiple times:
PSU's (4 (3 Antec))
Hard Drives
360

Thanks guys. I guess I'll start with mobo, then move from there. I was SO CLOSE. It booted....but oh no, just HAVE to plug it in again. Wow. Oh well....I got to see a PSU go sub critical..with smoke and long sparks, Firecracker invisible smoke, electrolytic fumes. Whole shebang! Radical. Lesson learned I suppose.

 

[practor]

Well hey a new system. Go gigabyte for the mobo "P