Random shutdown how to diagnostic?

[Mesiah]

Hello guys, 

 

I am experiencing random shutdown/reboot. Wether I am browsing, working or playing doesn't matter. 

I could not find a way to triger the shutdown.

I ran CPU stress tests, the witcher 3 and furMark, Also did a memtest for about 4 hours. and no errors.

 

CPU temps are going from 40 degrees to 57 and GPU can go up to 71 degrees. 

so this seems fine no?

 

I tried with memory at 1333 instead of 1600 as my bios was reseting it after every crash. 

but it dosent seem to change anything. 

 

I noticed that it usually reboot 5-15 min after cold boot but then it seems that it wont reboot even after playing / woking for about an hour. 

 

do you have any idea from where it could come? 

or at least how to diagnostic such a random issue?

 

My config:

4790k 

GTX 970 g1

16g 1600 DDR3

SSD Samsung 250go
Power supply SFX 550W

 

thanks.

[dragoon20005]

check for loose power connections

[ManIkWeet]

This shutdown, is it a normal shutdown or does it just turn off?

[Mesiah]

This shutdown, is it a normal shutdown or does it just turn off?

it  snap instantly and then reboot... like if I press reset ( but I have no reset button)

 

Have you tried overclocking yet? What motherboard do you have, and does it have a dual bios?

I did not try overclocking yet  and my bios is set to default settings. 

it is a OC oriented motherboard though, the gygabyte Z97-SOC  I had to press the Overclock iginition button once on the motherboard in order to make it run correctly. 

and yes there is dualBios, why? 

 

thanks!

[ManIkWeet]

it  snap instantly and then reboot... like if I press reset ( but I have no reset button)

Sounds like a power issue then, try wiggling your cables into place a bit.

 

Also remove every USB device you can, USB can break eventually and cause short circuits.

[Mesiah]

allright I'll try it as soon I am home and let you know if it is better!

cheers !