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Computer shuts off on its own

post #1 of 4
Thread Starter 
So lately I've been having issues. Today was the third time my computer shut down on its own. Everything just immediately shuts off except my keyboard, mouse, and other USB connected devices still receive power and my mobo LED indicators stay on when it happens. I cannot simply press the power button after this happens. I have to disconnect the power cord or turn the power switch off and hold the power button until my mobo LEDs turn off and turn my PSU back on and press the power button and then I get a screen that says your computer had an unexpected shut down do you want to start up normally.

It's a Kingwin MK Black Series 650w PSU that I bought used off of ebay about 6 to 8 months ago. I have not changed anything lately to my computer hardware wise. The problem happened every time I was in the middle of playing a game. the first 2 times I was playing Call of Duty Black Ops 2 and the most recent when I was Playing Gary's Mod. Neither are hardware demanding games and I run both at max settings but I feel like they arent the issue.

First I thought my CPU was overheating and that was causing the shut downs because I have auto shut down if my CPU hits 65C. I mainly had my CPU OC to 3.9ghz and when I used EVGA OC Scanner and used CPU Burner to max out my cpu and used HWMonitor to watch my temps I maxed out at 60C. It is starting to get warm out so my room temp is a bit higher but when I changed my OC to 3.7 and checked the temps I was still at 60C with even a space heater going on in my room. I hope my PSU isn't dieing but it seems weird that my mobo LEDs stay on when my computer shuts down.

The most recent change to my computer was my Razer Mamba 2012 mouse that I have had for over a week now and the shut downs have been happening in the last 3 days. I havent been able to confirm if the mouse's driver is having something to do with the shut downs. So hopefully someone can shed some light on the subject for me. I would really prefer not to buy another PSU for the chance of it not solving the problem and getting stuck with a PSU that I can't Refund because It was installed.

http://kingwin.com/products/cate/pow...ies/mk_650.asp

I've been posting this on many forums to get the most answers and I forget on here that I don't have a sig.

CPU: AMD FX 8120
GPU: EVGA GTX 560 SC 2G
Mobo: Asus M5A99X EVO R2.0
RAM: Corsair Vengence 8G (2x for 16G total)
HDD: Wastern Digital Caviar Blue
PSU: Kingwin MK Black Series 650w
Case: Azza Toledo 301
PERF: MadCatz Cyborg Keyboard v7 and Razer Mamba 2012 mouse
Audio: Asus Xonar DS PCI 7.1 Sound Card and Razer Tiamat 7.1 headset
http://imgur.com/ZKQ19f6
Edited by UNDEADFRIEND - 4/1/13 at 7:03am
post #2 of 4
It would help if we knew more about the specs of your computer (CPU, motherboard, video card(s), etc.)

Without knowing more about said components, all I can say at the moment is that PSU is not a true 650w PSU. Its 12v output maxes out at 38A/456w, which is the output a reputable, modern 500w PSU puts out.
Julia
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Western Digital Caviar SE WD1600JS NEC ND-3520A Windows XP Dell M780 
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Julia
(11 items)
 
Centurion (Dead)
(11 items)
 
 
CPUMotherboardGraphicsRAM
AMD Athlon 64 3700+ EPoX EP-9NPA+ Ultra EVGA GeForce 6800 GS (256-P2-N389-AX) CORSAIR VS1GB400C3 
Hard DriveOptical DriveOSMonitor
Western Digital Caviar SE WD1600JS NEC ND-3520A Windows XP Dell M780 
PowerCaseOther
FSP Group SAGA+ 450R Cooler Master Centurion 5 w/ Window (CAC-T05-WW) Samsung Floppy Drive (SFD321B/LBL1) 
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post #3 of 4
Thread Starter 
Quote:
Originally Posted by svenge View Post

It would help if we knew more about the specs of your computer (CPU, motherboard, video card(s), etc.)

Without knowing more about said components, all I can say at the moment is that PSU is not a true 650w PSU. Its 12v output maxes out at 38A/456w, which is the output a reputable, modern 500w PSU puts out.


I've been posting this on many forums to get the most answers and I forget on here that I don't have a sig.

CPU: AMD FX 8120
GPU: EVGA GTX 560 SC 2G
Mobo: Asus M5A99X EVO R2.0
RAM: Corsair Vengence 8G (2x for 16G total)
HDD: Wastern Digital Caviar Blue
PSU: Kingwin MK Black Series 650w
Case: Azza Toledo 301
PERF: MadCatz Cyborg Keyboard v7 and Razer Mamba 2012 mouse
Audio: Asus Xonar DS PCI 7.1 Sound Card and Razer Tiamat 7.1 headset
http://imgur.com/ZKQ19f6
post #4 of 4
Hm. So you were running that Bulldozer chip at 3.9GHz? That uses a fair amount of power, but it shouldn't cause problems.
Edited by svenge - 4/1/13 at 8:21am
Julia
(11 items)
 
Centurion (Dead)
(11 items)
 
 
CPUMotherboardGraphicsRAM
AMD Athlon 64 3700+ EPoX EP-9NPA+ Ultra EVGA GeForce 6800 GS (256-P2-N389-AX) CORSAIR VS1GB400C3 
Hard DriveOptical DriveOSMonitor
Western Digital Caviar SE WD1600JS NEC ND-3520A Windows XP Dell M780 
PowerCaseOther
FSP Group SAGA+ 450R Cooler Master Centurion 5 w/ Window (CAC-T05-WW) Samsung Floppy Drive (SFD321B/LBL1) 
  hide details  
Reply
Julia
(11 items)
 
Centurion (Dead)
(11 items)
 
 
CPUMotherboardGraphicsRAM
AMD Athlon 64 3700+ EPoX EP-9NPA+ Ultra EVGA GeForce 6800 GS (256-P2-N389-AX) CORSAIR VS1GB400C3 
Hard DriveOptical DriveOSMonitor
Western Digital Caviar SE WD1600JS NEC ND-3520A Windows XP Dell M780 
PowerCaseOther
FSP Group SAGA+ 450R Cooler Master Centurion 5 w/ Window (CAC-T05-WW) Samsung Floppy Drive (SFD321B/LBL1) 
  hide details  
Reply
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