Computer keeps shutting itself off for unknown reason?

Kayulzzz

Prominent
Mar 16, 2017
3
0
510
Hello!

So I've started encountering a problem which started the other day, I was on the internet alt tabbed out of overwatch when suddenly my computer shuts off, initially thinking it was a powercut, was not. Last night I let my brother go on my computer and he starts playing fallout 4 after modding it, computer shuts off, no blue screen, no beeps, just shut off as though it were a powercut. The computer will then try to start back up itself after the shut off, lights and fans all come on, the loading screens even display on the monitors then it will shut off and it will sometimes loop this, it will then get to a point where it stops trying and will not turn on after i press the button.

After we eventually get it on, he plays a different game but monitors the temps of the system, nothing appearing to overheat too much, GPU peaking at about 70 something, it soon shuts off again and after it starts back up it is fine for the rest of the night, and following morning up until now. Initially i thought maybe the games were just straining the GPU and it was the GPU's way of saying nah. This time im only on the internet and it shuts off and does the whole process of trying to start back up again, ive just got it running again. (God knows how much time i have right now)

- It is a custom build desktop PC

-CPU: i5 4690k
-GPU: GTX 960 (I've had ongoing problems with the GPU would not surprise me if i was told it was faulty but didnt know if this was enough for this particular issue)
-Mobo: MSI z97 Mpower
-PSU: Corsair CX series 600W
-Corsair Vengence 16gb RAM

And i recently bought new SSD and new hard drive back in December.
(Will also add that every part in this PC is no more then 2 years old)
 

Kayulzzz

Prominent
Mar 16, 2017
3
0
510


Yeah I have given it a good clean. With the problems I have been getting with my GPU (consistent FPS drops in games for the last 6 months) It was recently recommended that i reseat the GPU in a different PCI port, which i did do, and gave the comp a clean while i was at it. Will add the GPU was pretty damn warm.
 

Kayulzzz

Prominent
Mar 16, 2017
3
0
510


Looking back on my order history i purchased it from Amazon March 25th 2015, so its coming up 2 years old