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System just turned off.

Last response: in Components
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June 30, 2012 8:35:10 PM

My rig runs perfect for a very very long time, no problems what so ever, then this morning it literally just turned off.

No blue screen, so windows shut down, as if it stopped receiving power and just turned off.
It wouldn't turn back on so i decided to pop it open real quick and see what was going on.

Plugged power cord in, waited for green light on mobo and gave it a few seconds and then hit the power button.
-Fans spin on for a second and i see a red light on the processor, its fan spun up for a second to, and then the fans stop and it wont even spin the fans on when i press the power button again.
-Only when i unplug and re-plug in the power cord will the fans spin up for a second.

The outlet, surge protector and power cord are all fine.
-So that leads me to believe it's the psu.

It has been pretty hot here lately in Vista California, that could be it. I have the 4 fans up at full all the time.

idk, any help is appreciated.

rig:
-MOBO: Asus 990fx sabertooth.
-CPU: Amd 8150fx eight core
-GPU radeon 6770 xfx hd
-PSU: Corsair 700w
-Case: NXZT h2

More about : system turned

a b ) Power supply
June 30, 2012 8:46:05 PM

was it overclocked at all?
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a b ) Power supply
June 30, 2012 8:57:02 PM

Sadly, could be almost anything: bad DIMM; motherboard; power connection. PSU would not be my first guess, but it is certainly possible. Motherboard manual is often helpful in these cases: take a look at beep codes and status LEDs.
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June 30, 2012 9:01:41 PM

sounds like broken psu

i had same issue



replaced and works fine.


you can check psu by using a paperclip to short certain pins on motherboard power connection on psu


if that turns psu fan on then you know its motherboard


if it doesnt then its psu


i know it can be done i just can't remember which pins



there is loads of info on google about it
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