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... Random Shutdown Problem

Last response: in Systems
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March 3, 2012 6:19:24 PM

What is my next troubleshooting step?

My build:
Antec 300 Black Illusion (4 fans)ATX Mid Tower
Biostar TA790GXB3 AM3 AMD 790GX ATX Motherboard
G. Skill Ripjaws Series 4GB 240-pin DDR3 SDRAM DDR3 1333 (PC3 10666)
AMD Phenom II X4 955 Black Edition Deneb 3.2 Ghz 4 x 512KB L2 Cache 6MB L3 Cache AM3 125W
Western Digital 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5"
Asus DVD Burner 5.25”
Antec Earthwatt 500W Continuous PSU

- No cross firing
- No over clocking
- no RAID
- no sound card
- no video card

My problem: Random shutdowns with no error messages and no warnings
I've been using system since 5/2010 without complaints, but 4 months ago my PC turned off after 3 hour of use, and from then, started to shutdown randomly without any pattern. Sometimes I'm away from the system when it shuts down. It does it most consistently when I open two browsers using Flash for online games. First I ran MEMTEST+86 to check the memory sticks and everything was fine after 6 tests.

I tried to use Prime95 In-Place test to measure CPU temperature, but system shutdown less than 1 minute into test. Not sure about the results – found 2 new text files:
Prime:
V24OptionsConverted=1
WGUID_version=2
StressTester=1
UsePrimenet=0
MinTortureFFT=128
MaxTortureFFT=1024
TortureMem=8
TortureTime=15

[PrimeNet]
Debug=0

And Local:
OldCpuSpeed=3520
ComputerGUID=d55212b32a8d1f59f0614d05d1f7d845

Anywhere to find performance info. in PC? Should I just replace the thermal compound in the CPU? Is the motherboard the problem? Could it still be the power supply?
March 3, 2012 6:35:15 PM

i suuspect hight temps on CPU

Best solution

March 3, 2012 6:39:28 PM
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Often times this is a power supply issue, however it sounds like your CPU is overheating and the system is shutting down to prevent damage. Download the program RealTempGT and monitor your temps and report back.
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March 3, 2012 11:39:54 PM

Downloaded Core Temp 1.0 and here's the report. Thank you trispir and crisan_tiberiu

Photo not loading - high temp was 62c

March 3, 2012 11:45:50 PM

^That didn't quite work out.

And it could be overheating or it could be a PSU going bad. Did you happen to remmeber the temps in CoreTemp when running Prime95?
March 3, 2012 11:58:59 PM

Let's try photo insert again for jimmysmitty.

March 4, 2012 12:12:25 AM

I would try re-applying the thermal compound and ensure that the heat sink is level on the CPU. That is easier than RMA or even more expensive options.

Are you using a stock cooler or after market? Which one is it? Good luck!
March 4, 2012 12:23:39 AM

2532277,7,1079626 said:
I would try re-applying the thermal compound and ensure that the heat sink is level on the CPU. That is easier than RMA or even more expensive options.

Are you using a stock cooler or after market? Which one is it? Good luck![/quotemsg

Stock
March 4, 2012 12:57:14 AM

62c is not bad for that CPU on the stock cooler under Prime95.

As I said, it may be a PSU issue that when under load it can't provide the necessary watts/amps.
March 11, 2012 1:38:13 AM

Best answer selected by Jade276.
!