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PC keeps shutting off for no apparent reason

post #1 of 16
Thread Starter 
As in, it shuts down, instantly, without any errors. I have tested pretty much everything, lowered the OC, ran GPU tests and Prime95 all night, including memory tests.

This just happens once or twice a day, and those happen in a row, then it doesn't happen for the rest of the day. It isn't related to overheating, my PC is cool. The only thing I can think of is the PSU or the motherhboard, the HDD works just fine on another PC.

Could it be that windows is somehow corrupted?
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post #2 of 16
CX600?

Yep. (yep to the PSU, not Windows)
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post #3 of 16
If it was Windows you would probably get BSOD or some type of error messages I would think. I had an issue like that before and it was my PSU. Maybe try another PSU if you have 1 laying around.
post #4 of 16
Yes, it seems like a psu problem. 600 watts is perfectly fine for your comp, but the unit probably is going bad.

RMA or get a new one.
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post #5 of 16
Could the PSU be shorting out on anything?

It happens to me very often when I start moving cables around as I have a few, probably not the safest mods. wink.gif
     
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post #6 of 16
Its probably your psu. Have you got a spare one to test with?
Also check no wires have become loose, its often small things like this that are actually the problem.
    
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post #7 of 16
PSU or the VRMs are overheating.
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post #8 of 16
Thread Starter 
Checked all the cables, etc, everything is fine, VRMs have a fan blowing at them and are completely cool. I had problems with them before but that's why I locked 2 cores and installed a fan to blow at them, now they barely even heat up.

I don't have a spare PSU around at the moment, so guess I'll have to order a new one to see if this is it :/
..
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CPUMotherboardGraphicsRAM
1055T@3445MHZ 1.2V/ SB Pentium G620@0.84v ASUS M4A79XTD EVO/ ASUS P8P67 Sapphire 6870/ Club 3D 5770 2x2gb Kingston DDR3 1333mhz @ 1467mhz 7-7-7-17 
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post #9 of 16
Quote:
Originally Posted by Devilmaypoop View Post

Checked all the cables, etc, everything is fine, VRMs have a fan blowing at them and are completely cool. I had problems with them before but that's why I locked 2 cores and installed a fan to blow at them, now they barely even heat up.
I don't have a spare PSU around at the moment, so guess I'll have to order a new one to see if this is it :/

Don't order another CX if thats what you have now. You haven't said which Corsair 600w you have though. Is it a GS? CX?
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CPUMotherboardGraphicsRAM
i5 6600k MSI Gaming Z170A EVGA GTX 980 Classified Crucial Ballistix Tactical (2 x 8GB) DDR4 2666 
Hard DriveCoolingOSMonitor
Samsung Pro 950 Cryorig H7 Windows 7 Ultimate x64 CrossOver 2560x1440 IPS 
PowerCaseMouseMouse Pad
Rosewill Capstone 550-M Phanteks Enthoo Pro RAZER Abyssus Mirror Special Edition XTRAC Ripper 
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Intel q9300 Intel DP45SG MSI TFII GTX 660 Corsair Dominator 1333 
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CPUMotherboardGraphicsRAM
i5 6600k MSI Gaming Z170A EVGA GTX 980 Classified Crucial Ballistix Tactical (2 x 8GB) DDR4 2666 
Hard DriveCoolingOSMonitor
Samsung Pro 950 Cryorig H7 Windows 7 Ultimate x64 CrossOver 2560x1440 IPS 
PowerCaseMouseMouse Pad
Rosewill Capstone 550-M Phanteks Enthoo Pro RAZER Abyssus Mirror Special Edition XTRAC Ripper 
AudioAudioAudioAudio
Asus Xonar Essence STX Dayton Audio B652 Lepai Tripath Class-T Hi-Fi Audio Mini Amplifier 8 Inch 60-Watt Powered Subwoofer 
CPUMotherboardGraphicsRAM
Intel q9300 Intel DP45SG MSI TFII GTX 660 Corsair Dominator 1333 
Hard DriveCoolingOSMonitor
Corsair Force 3 90gb Deepcool Gammaxx 300 Windows 7 Samsung SyncMaster 932bw 
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post #10 of 16
Thread Starter 
Quote:
Originally Posted by jagz View Post

Don't order another CX if thats what you have now. You haven't said which Corsair 600w you have though. Is it a GS? CX?

It's a CX, do they have problems like this usually? I thought Corsair was a quality brand.
..
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CPUMotherboardGraphicsRAM
1055T@3445MHZ 1.2V/ SB Pentium G620@0.84v ASUS M4A79XTD EVO/ ASUS P8P67 Sapphire 6870/ Club 3D 5770 2x2gb Kingston DDR3 1333mhz @ 1467mhz 7-7-7-17 
Hard DriveOSPower
Samsung Spinpoint F3 1TB Windows 7 Home 64bit Corsair 600W 
  hide details  
Reply
..
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CPUMotherboardGraphicsRAM
1055T@3445MHZ 1.2V/ SB Pentium G620@0.84v ASUS M4A79XTD EVO/ ASUS P8P67 Sapphire 6870/ Club 3D 5770 2x2gb Kingston DDR3 1333mhz @ 1467mhz 7-7-7-17 
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