ok, here is it. i just built this computer 1Ghz P III TUSL2-c mobo 60GB and 15GB GXP60 HDD's CDRW /creative labs ati dual head Radeon 256MB SDRAM PC133 my interface is an Aardvark Q10, and it works great... BUT... i get DC noise in my outputs. Headphones, Monitors...even if i route through external gear befor the amp...still hear hard drive noise, access noise, motor noise!!!!! it sucks.... i'm thinking up purchasing a new power supply, PC Power and Cooling 300 PFC model. HELP!!!!