Have you tried actually setting up your power management with a custom plan? It may solve your problems.

__________________
AMD X2 BLACK EDITION 3.2GHz SAMURAI COOLER::GA-M51 MB-HEATPIPE CHIPSET COOLER::3GB XMS2 PC6400 RAM::GEFORCE 8800 GTS 320MB 575/900MHz::160GB BARRACUDA RAID 0::SOUNDBLASTER AUDIGY::LITE-ON DVD RAMDRIVE/PIONEER DVD::HIPER MODULAR 530W PSU::THERMALTAKE ARMOUR Jr CASE::RAZER COPPERHEAD MOUSE::VISTA HOME PREMIUM SP1