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PC Wont Turn On


peterkr

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Hello Everyone,

 

Recently, i have been unable to turn on my computer and I've been unsuccessful in fixing it so far.

 

My Specs:

Asus P55D E-Pro MoBo

corsair 750 watt PSU

i5-750 CPU

Coolermaster Hyper TX3 i5/i7 compatable cooler

******** eco 2x2GB ram

gigabyte 5850C GPU

Coolermaster Haf 922 case

 

Description of my Problem:

I made this computer at the beginning of the summer and it has never given me problems until now. I have recently traveled back to college, and brought my desktop with me. After setting it up and turning it on in my new location, it worked fine for a few days. But then I started having problems when the computer would go idle. If I left my computer idle for an hour or so, or if I told it to go to sleep, about half of the times when I came back to it the computer would be unresponsive. I would press a key to get out of sleep mode, and everything would turn on, the fans would be spinning, the moniter was on (but blank), the HHD would start spinning, etc… Next, I would hold the power button down to force a shut down, and then restart my computer, and everything would work fine. After it was on it generally worked fine (although I did get a blue screen of death a few days ago, I’m not sure if that signifies something in particular).

 

The second part of my problem happened after one of the incidents above. My computer was locked in its idle state so I held down the power button so I could restart it. But when I pressed the power button to turn the computer back on, nothing happens. No fans spinning, no POST beeps.

 

Some of my observations thus far:

• When the PSU is plugged in, the MoBo power LED lights up, indicating its getting power.

• I’ve tried manually creating a connection to start the computer to check if the power button itself was malfunctioning,

• My case has an onboard LED that I can normally switch on and off via a button, but the button does not work.

• I tried doing a paperclip test described here: http://www.corsair.com/helpdesk/psu_support_tips.aspx and the PSU fan turned on when I did it

• I’ve tried multiple outlets & have tested to make sure the outlet works

Currently I’m thinking that the culprit must be either the PSU (hopefully), or the MoBo

 

Any help would be greatly appreciated and thanks in advance!

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First thing I would do is reset the CMOS via the CLRTC jumper on the motherboard. From there it is probably a good idea to run http://www.memtest.org to make sure that the memory has nothing to do with this problem. The PSU does not turn itself on or off, it requires a signal from the motherboard for both. It is usually unlikely that random restarts and shut downs would indicate a faulty PSU, but its certainly possible. If you have the option, I would test the unit in a different system and see if the problems follow the PSU. If so, then please Request an RMA.
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I tried Resetting the CMOS and putting in different RAM, but that didnt work. I ordered a PSU tester and plan on testing the PSU to determine if it is the problem. If the PSU fails a test that would warrant submitting a RMA to get a replacement right? I bought this PSU about 3 months ago
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