well, i've tried it with 3 different drives. 2 of them bein WD, one is a hitachi Sata, i tried them all individually. I am thinking it's the MOBO, i oc'd my 64bit 3000+ venice to about 2.1ghz on the stock PSU. i thought i had just killed the PSU. Bought a new 500W PSU and now it all boots fine, just won't get past the initial driver load.