I have an Intel D915GAV Desktop board, recently I've been experiencing serious hang issues, even when the system isn't under any load at all. When I restart the PC, an error message appears : Disk read error. Press Ctrl+Alt+Del to reboot. And in BIOS, I see that there are no SATA devices, including my ASUS combo drive, and only my gigabyte combo drive is present(which is the only IDE device) . The problems disappear for a few hours when I plug the SATA cables in different slots, after which the problem starts again. I think there's a problem with the motherboard SATA slots, but I'm not sure yet. Any help please? .