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How bad is the damage? Shorted PSU

post #1 of 23
Thread Starter 
Hey guys!

So my PSU has burned, a few days ago my PC started to shut down after 20-30 minutes of gaming, at first I suspected it was due to overheating of the CPU, but the temps were ok. The temps showed in HWMonitor were all in an acceptable range. Until I checked the PSU, that thing was reaaally hot.

I removed it from its place and noticed the fan wasn't working, so I opened it up and there I found the damage:









My PSU it's a Antec Earthwatts de 750W, Antec EA-750. So anybody knows what exactly is damaged? What does that part of the PCB does? Cause the PC works perfectly, even when gaming, until it shuts down.

It's worthy to mention that as long as I remember, the PSU made always electrical popping noises when turning the ON/OFF switch on the PSU.

So, what do you think? I'm probably forced to change the PSU now, don't I? But will it be dangerous to keep using the PC while the new PSU comes? I mean for basic use, no gaming or intense tasks obviously.

Hope you can give your opinion, kind regards!
post #2 of 23
buy a new one if you care about your computer.
     
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post #3 of 23
dont use it anymore. might take another hardware with it. fire hazard. someone will answer what part of the psu that is.
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post #4 of 23
dont take a chance, buy a new one and even if you could replace the components, the pc board itself you couldn't as it looks well burned thumb.gif
post #5 of 23
Unless you're eager to learn about surface mount soldering, give it to somebody who can repair it, or gut it for parts because even if you replace all those burnt components, there's a good chance the charring of the circuit board will cause shorts and prevent operation.

The circuit board controls the fan (that portion seems OK) and also either regulates some of the output voltages (independent regulation?) or monitors them and shuts off the PSU if it finds anything wrong with them. HardwareSecrets.com says the 18-pin chip on the front is a dwa107n181, but they couldn't find information for it. Notice that the MOSFET wrapped in heatshrink with the resistors probably got hot (white paint around the 3 solder pads turned yellow), and I wouldn't be surprised if it's shorted.

post #6 of 23
Thread Starter 
So wouldn't it be possible that just the fan operation got messed up (cause the fan doesn't work at all) and therefore the PSU got really hot when gaming, and then shuts off? Because, at first i gamed around 30 minutes, then the PC shut off and (not knowing there were this problems with the PSU) I turned it on again and start plaiying again, this time staying on like 10 minutes.

Maybe as the PSU was already hot this time lasted a shorter time. Don't really know, any help appreciated.
post #7 of 23
I would recommend buying a new psu.

If you can't:

If that board only controls the fan, then i would replace it with a 120mm/140mm (Depending on size) and leave it on full speed. ( I did this on my old Cooler master 550w psu)
post #8 of 23
Damage is bad enough to replace the psu.

Not worth risking your house and belongings for $50 on a new psu, nevermind just the computer components themselves.
    
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post #9 of 23
That Antec Earthwatts 750 has a 3-year warranty. If you can find your original receipt, send it back to Antec and get it replaced. Their warranty replacement used to be pretty good, though I haven't RMA'd anything with them in a few years.

Greg
post #10 of 23
Should be covered under warranty. Antec has always been excellent to deal with in my experience.
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