ok I have had issues with every OS even after replacing everthign put the cpu, and power supply. So I tried someting I connected my Hardrives on the IDE instead of the added SCSI. And installed Windows 2000 Advanced Server and everthing is fine. I really want XP and would like to have my dvd and cdrw on seperate connections to the board. If i place everything separate everything fails. Just FYI thats CdRw, DVD, 20GB 7200RPM HD, and 6.4GB 5400RPM HD, 512DDR, XP1500+, Geforce 2 TI 64MB DDR, SB live 5.1, and NIC. Anyone have the same issue? Is this just not possible to setup all drive separately? Micosoft blames hardware even after replacement "its the memory they say".