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Power went out in my room. Now PC won't turn on. - Page 2

post #11 of 26
Flick the power switch on the back of your PC if you havn't already, whatever turned your room off probably engaged a safety.
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post #12 of 26
Thread Starter 
The only power switch I have on the back of my PC is the one on my power supply, which I have already switched on and off many times. Should there be another one?
post #13 of 26
try taking you power supply apart there should be some fuse type things take them out and swap them for the ones in you other power supplys and see if it works
post #14 of 26
Thread Starter 
I've never opened a power supply before and I have no idea what the fuse type thing looks like. Does it require any soldering? I don't have a soldering iron or know how to solder. And isn't there a big risk of being shocked working inside a power supply?
post #15 of 26
Quote:
Originally Posted by darien View Post

I've never opened a power supply before and I have no idea what the fuse type thing looks like. Does it require any soldering? I don't have a soldering iron or know how to solder. And isn't there a big risk of being shocked working inside a power supply?

Not so much after about 1 month of just sitting there. Other then that DO NOT OPEN IT!!!!
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post #16 of 26
Quote:
Originally Posted by darien View Post

I connected 2 old power supplies and my current power supply to the old PC one at a time. I sat the old PC next to my current PC and connected a power cord to one of my current PC's fans then turned on the power of my old PC. The two older power supplies made the fan in my new PC turn on, but my current 600W power supply did nothing. So does this mean my power supply is definitely broken? Or is it just not compatible with my older PC? Both the older power supplies came with prebuilts and are under 300W and without the extra 4 pin connector. The motherboard in the old PC also doesn't take the extra 4 pin connector, so with my 600W power supply I just left the 4 pin unplugged.

if you open your psu, you will void the warranty if it didnt already expire.

correct me if im wrong, but the extra 4 pin, supplies power the the cpu, so it shouldn't affect the power delivery to a 3 pin fan. most likely your psu is gone.

but one last thing you could do, is disconnect your gpu and hard drives, and see if your motherboard will post. kinda like what you do when you first build the pc.
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post #17 of 26
Take out the 24 pin connector from the moterhaboard and try to manually turn on the power supply by connecting the green wire and any balck wire on the 24-pin using a paper clip or some other form of conductor.
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post #18 of 26
Thread Starter 
I just tried turning it on with the GPU and hard drive removed, but didn't see or hear anything from the motherboard. And when I was mentioning a 4 pin connector I was referring to the 4 on the main 24 connector that's split with 20 and 4. Not the CPU ones. Also, the fans I was testing weren't 3 pin fans. They are separate from the motherboard and are part of the Antec 900 tower. They each use one molex connector.
I bought the power supply in October 2008 and it had a 3 year warranty, so it just ended last month. I don't think I have a paper clip at the moment.
Edited by darien - 11/21/11 at 12:35am
post #19 of 26
Thread Starter 
I just realized that I could connect the 20 pin connector on my old power supply to the 24 pin slot on my motherboard and don't need the extra 4 to test it. So I connected one of the old ones to the motherboard and a fan. The fan came on and a light came on on my motherboard and video card (I had the video card connected to the motherboard but didn't have it plugged in to the old power supply). Then I tried my 600w power supply again and still no fans or anything came on. Seems like it's definitely the power supply that's bad. I also noticed that the green protection light on my surge protector isn't lit up. So I probably need a new power supply and surge protector. Does anyone have any recommendations?
post #20 of 26
Yep, both are gone.

My PSU is a Rosewill HIVE 750 which is a good price/watt. Surge protectors are a crapshoot really, just google some reviews I guess.
     
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