R9 290X reboots my PC!

Tomimn

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Aug 30, 2014
8
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4,510
So... i ve bought a Radeon R9 290x ( 4gb ddr5). I have a sentey 750w PSU,a Intel DH61WW Motherboard,and an Intel i7 2600 processor. I can browse the internet perfectly, watch videos and do other normal stuff like that, but when i try to play a game (not necesarily something very intense like BF4,something like gta IV too) after the logos and whatnot,when i actually get to play and the gpu begins to work,after 5 to 10 seconds (maybe a little bit more) my computer reboots itself (no flickering or blue screen or anything like that) it just reboots itself.
Ive read that its not likely a PSU issue, since mine seems to be more than enough.Ive also tried increasing the fan speed at 100% and it lasted about 10 seconds longer but thats it,i dont know what to do! please help!
 

Tomimn

Reputable
Aug 30, 2014
8
0
4,510
I havent found many of those that ship here (theres currently an importation problem) but i found a Sentey ERP750-PS 750W Steel Edition, is it enough ?