PC power offs completely

Divont

Prominent
Aug 2, 2017
2
0
510
Hello,

This problem kept happening when I have games running.
Computer power offs by itself and tries to restart again but on the bios screen it would hang and power off again.
This process will repeat for several times until "Preparing automatic repair" screen show up and I have to choose continue to windows.

Used several software to check the temperature but all cpu/gpu temp looks fine.

Tried stress testing cpu (thinking could be cpu temp problem) using Prime95 but during the process of testing the computer will not power off, instead when i click on stop testing, the computer would power off by itself and repeats the process above.

My specs:
Asrock z97 extreme4
i5-4960k
G1 gaming gtx 970
1ssd
1hdd
16gb ram
SF-750F14MG 750W psu

Hope anyone can tell me what might be wrong here thanks !
 

Divont

Prominent
Aug 2, 2017
2
0
510
Just had time to remove parts and test and seems to be a faulty ram that I have recently installed.

One thing i noticed was the different voltage of my new ram.
Original Ram : 1.5v
New Ram : 1.35v

Could that be the cause of this problem ?