Computer freeze with black screen when i am playing.

[paulo_88]

EDIT: posted on wrong area, any mod can move this to the gpu area please.

Hello guys, i need some help because i dont know what to do anymore, in the past few weeks i am having this issue, everytime i play any game, my screen goes black with sound looping, nothing else works and i need to restart, here is my specs:
CPU: I7-3770
MoBo: Asus P8B75-M LE
RAM: 8GB DDR3
GPU: Radeon RX 460
PSU: Corsair GS700

Here are the things i done so far:
RAM: memtest86 for 10 hours, no errors
HD: windows scandisk, hd tune, crystaldisk info, everything ok
CPU: intel processor diagnostic tool, no errors
GPU: when i am playing, the maximum it reaches are 68 celsius, i did a research and this looks normal, but i used the furmark3d and the screen goes black.

So, here is the thing, i have been using this gpu for like, 9 months, since my gtx 670 died, i think maybe she can be the problem, however, i tested on my friends computer and nothing happens, furmark and his games, no black screen, he have a RX 470, so, its possible my PSU arent sending enough power or something? Or can be anything else i am missing? Thanx and sorry my bad english.

 

[norcalsc]

sounds like your psu is dying that would be where id start based on what you are saying about trying on your friend's pc

 

[paulo_88]

sounds like your psu is dying that would be where id start based on what you are saying about trying on your friend's pc

yeah, i figured about the psu after the gpu test on his computer, also, is there a way to know if my psu is sending enough power to the gpu?