huh, never heard of that brand of psu. what temps are you getting? i think it is most likely turning off due to overheating.
I just downloaded Open Hardware Monitor for the temperature and other stuff, but there is multiple temps given so anyone one specific. Sorry not a wizard at this stuff.
O.O omg, if those temps are accurate, then you have done something wrong. 1. is there a heatsink or some form of cooling on the cpu, and 2. if so, is there thermal compound between the cpu and cooler, and 3. if so, is it good quality and not hard? if not, then get some right away.