just replaced my mobo and cpu with an i5 750, asus p7p55d le and 4gb ripjaw cas9 kit. Ive reused my hard drives optical drive xfi and tv card and gtx260. Ive attempted to reinstall windows and keep getting a failed 2 start windows error because of a hardware change and to run setup again to repair. Well i do this and it still comes up with the same error. Iv tried vista and win7. Iv tried all hard drives on there own and its the same. Any ideas guys?