Question PC keep random boot in Game

[isemampaisayau]

Hello,

Recently my gaming pc have this problem - it keeps randomly reboot when I run games for 5-15 minutes.
I tried remove my rams, boot my pc, motherboard speaker long beep 3 times.
I tried change my PSU and downgrade my GPU driver, same problem still occurs.

Game Tested: Dota 2, CS:GO, PUBG and Apex Legends

I tried stress test using Aida64 and also FurMark:
CPU 100% @ 60c (140F)
GPU 99% @ 72c (162F)

System:
Windows 10 ver 1809
Geforce ver 417.35
Geforce ver 418.91 (Initially I thought latest GPU driver problem, so I downgraded it, but same problem still occurs)

Spec:
Intel i7 6700
MSI B150A Gaming Pro
2x8GB TridentZ 2400Mhz
MSI Gaming GTX980 4G
Aigo 600W PSU & CM Thunder 520M
500GB Samsung EVO SSD
1TB Seagate HDD

Please advice, thanks in advance!
Sorry for my bad English.

 

[computerjoe314]

My guess would be that it's either a motherboard VRM problem or a GPU problem.

 

[isemampaisayau]

My guess would be that it's either a motherboard VRM problem or a GPU problem.

Is there anyway to verify and confirm which one has problem?
I can use the pc to surf internet and watching netflix.

 

[computerjoe314]

It's unclear.
It might be that the VRM can't handle all the load,and it might be that your power supply can't handle the load.
What happened when you stress tested your computer?

 

[isemampaisayau]

It's unclear.
It might be that the VRM can't handle all the load,and it might be that your power supply can't handle the load.
What happened when you stress tested your computer?

Nothing happened, everything is normal during the stress test for about 1 hour 30 minutes. But when I try to run games I’ve mentioned above, it’ll auto reboot after 5 to 15 minutes.