pc boots fails

snakethenoob

Distinguished
Dec 13, 2011
5
0
18,510
i have is issue related to my gpu when ever i play games or do other things my screen just goes blank then i have to do to a hard reset but then my pc doesnt boat up at i get 1 long beep then 3 short beeps it does that every time i reset then i leave my pc off for 15 minutes or so and when i switch it on everything is fine but then after a couple of hours it does it again Black screen, sound loop. Monitors shut off. Requires hard reset

im running win 7 64 bit intel i7 quad core 3.70ghz 16gig ram and a amd 5770 series gpu 700 watt psu

ive done a mem test and theres no problem done mb test no problem done hd test no problem but i dont know how to test the gpu witch my guess is the problem please help thanks