Computer dies when mining, gaming, and watching videos

[Temido2222]

This has started very recently. My computer black screens spontaneously with no record of what happened. I have narrowed it down to PSU or GPU.

Specs:
Motherboard- Msi A78M-E35
CPU- AMD Athlon X4 760K
GPU- 2GB MSI R7 260X
Ram- 2x 8GB Crucial Ballistix Sport
HDD- 1TB WD Blue
SSD- Samsung 840 Pro
PSU- Corsair CX430 430W

 

[coolcole01]

run valley bench if it goes out immediately its probably the card if it takes a few the psu watch the temps could also be the vrms on the mobo heating up

 

[littleleo]

I would try another power supply that is what it sounds like to me. If it was the VGA card I think you would get artifacts all over the screen too. Get at least a 500w of a decent brand.

 

[Temido2222]

Yep, I ordered a new PSU