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Is this a PSU problem?

R

rinaldo00

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Mar 9, 2005
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I do not have a mulitimeter to test my PSU so I am wondering if this sounds like a PSU problem. I don't even know how to describe my problem well, but I'll try. I usually keep my compter on 24/7 but sometimes I turn it off on hot days to give it a rest overnight. I have turned it off twice in the last month and the problem happened both times. The computer will not turn on. I press the power button and if I hold it I hear the computer TRY to turn on, it chugs, just like a car that is trying to start when you hold they key.

I opened up the case, cleaned everything, reseated my HD and my two GTX 680 4GB GPUs, tried again and it worked the first time. This second time it didn't work. I thought it might be overloaded so I removed one GPU and it worked. The thing is I have had two GPUs in it for years. This is an old HP Blackbird gaming rig that I rebuilt last yar. I changed everything EXCEPT the PSU which is now 5 years old. I do not know the brand, all I know is it is a Power Supply 1.1 kW Modular Cable Design

Has anyone ever heard of such a weird problem like this?
 
Sounds like it to me.

Those capacitors can degrade over the years and who knows if that power supply even used quality ones to being with.
 
Time to replace the PS. Had exactly the same problem. Topower sent me new PS for reasonable cost, and it slipped right in. Machine has worked perfectly since.
 
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My question is....what the hell are you running that you thought you might be overloading a 1.1kW PSU?
 
mstavridis said:
Power sag caused by old caps... Get a new one preferably with solid caps.
Click to expand...

Recapping the PSU is an option if the PSU is out of warranty. It costs at most $30 and a few hours of soldering and you get another 5 years out of the unit. I've recapped dozens of PSUs with tired old caps or junk caps (Fuhjyyu, Teapo, etc.) and I've had a pretty high success rate using low ESR Nichicon caps.
 
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