The power supply seemed to be doing a decent job. Last nite the motherboard temperature alarm was going off. I checked the system and the power supply was pretty hot. I looked in the back and the fan was no longer turning. The power supply is putting out power, but not spinning the internal fan. Thanks for taking my $60 cooler master. After reading many power supply reviews, it is becoming more apparent that you have to spend a considerable amount of money to get a reliable/quality power supply. grrrr......