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Windows 7: What blew up in my PSU?

30 Jan 2013   #11
Microsoft MVP

Windows 7 Ultimate X64 SP1

Unless the PSU switch is turned off or the mains pulled, it remains powered up, the low voltage has been cut off to the motherboard though.

Col. Travis I don't put any faith in surge protectors such as that. I would recommend a good Uninterpretable Power Supply, UPS, instead. They supply clean and steady power plus having a good surge control circuit. Most will have software which will monitor your input power too.

My System SpecsSystem Spec
31 Jan 2013   #12
Colonel Travis

Black Label 7 x64

Great advice everyone, thanks. Got a good Corsair PSU, no components were fried. Have absolutely no desire to make a PSU or fix one. Just curious to know how stuff works.
My System SpecsSystem Spec
31 Jan 2013   #13
Microsoft MVP

Windows 7 Ultimate X64 SP1

You're welcome. If you have a PSU problem again, do not open it. Depending on the caps quality and specs some may hold a lethal charge for days.
Try these steps to see if it will "turn on".
PSU-How to Test
My System SpecsSystem Spec

31 Jan 2013   #14
Comp Cmndo

Windows 7 Home Premium 64bit

Quote   Quote: Originally Posted by Colonel Travis View Post
Thanks for the warnings, I waited a while before opening it, had no intention of repairing it because I don't even know what happened. Going to get a new PSU tonight.

About a month ago I bought this new power surge protector (suppressor). Is it possible this was the culprit?

No clue how to pinpoint what the problem was. From what I've read about the PSU, I'm going with that being the source. But I don't know if something else caused it to blow and that's what bugs me. Also, I'd like to know what actually blew inside just for my own knowledge.
Power Surge Protector would not cause chip to explode. Surge Protectors are passive devices.

The chip that blew is made by Power Integrations in Korea. Its a TNYxxx (can't read the xxx).
Maybe this: TNY 279 Chip gets hot | Power Integrations

Stay away from anything OCZ makes. They make warranty claims so difficult, you will give up.
My System SpecsSystem Spec

 What blew up in my PSU?

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