Hi. I've got a homebuilt windows xp system with the OS installed on a sata drive. There's also two other sata drives and an ide drive fitted for storage. It's been working fine but last week it started to reboot each time just as it gets to the XP logo. It also reboots in safe mode. I tried several "software" things, to no avail. I then disconnected the three extra drives and it booted up OK. Reconnecting any one of them would make the error come back. Thinking it was a power issue I ordered an OCZ 600W psu to replace the original Antec 380W one. This arrived today, but fitting it didn't cure the problem. If I leave power connected to the three drives, with no data connected, it boots up OK. But as soon as you connect any of the data cables it won't. Also each of the secondary drives seem to be recognised by the bios on the boot screen. And I've also tried resetting the bios back to default. Does anyone have any ideas ? ... because I've ran out ! Thankyou.