Wow, what a difference. Upgraded f/ Antec trublue 480w. No more crashes w/6800U(475core/1245mem) and AMD3700(2.9Ghz-1.8V) oc'd to the max. Review said be careful w/ 5Volt line spiked to 6.1Volt b/c it is build for power hungry server or dual processors system, but w/ highest oc it seems to be ok.