hi I have just put together some new bits asus kn8-e and x1800Xt into rig in sig. every thing was fine, but i reformatted and now when i reset/reboot it sometimes wont boot but after checking ram / drives the next screen it just hangs. I have removed a damaged DVDrw drive and replaced ide cable but still getting this problem. Any ideas what to check next. i have no optical drive at the moment. just 1 sata + 1 ide .