asus dual rx480 4gb reboot problem

omardonq

Commendable
Dec 15, 2016
3
0
1,510
when i start the game or begin furmark test after 5 seconds my pc rebooting instantly...

pc specs ;

cpu : i5 4690k
graphic card : asus dual rx 480 4gb
mb: msi z97 pc mate
rams : 2x4gb corsair vengeance
psu : 750w thermaltake 80plus bronze

btw : i bought my psu 2,5 years ago..
so whats the problem? Any idea?
 

I look for update my bios, but can't find anything. Can u show how to do it?