PC shuts down after a few seconds

olykenny

Honorable
Dec 10, 2013
3
0
10,510
I need some help I just built a PC for a friend and it seems like it's over heating or something. It starts and runs for a bit and shuts itself off and once it does that it shuts off after a few seconds.

Sabertooth 990fx r2.0 motherboard
Amd 9370 vishera 4.4ghz
Radeon hd 7850
16gb ram

The heat sink is the only thing that isn't brand new. I pulled it from his amd fx-8150 Zambezi 3.6ghz should I get a new heat sink?
 

olykenny

Honorable
Dec 10, 2013
3
0
10,510
Yeah spinning fan and all that. I've reseated everything including cleaning the heatsink and cpu with isopropyle alchohol and reapplying thermal paste. I've checked for electrical shorts and its a 1150 watt psu.