Re: Can't boot from USB on P4S800-MX
May be your motherboard is too old to support USB boot, did you try to update BIOS?
No, but no one has ever mentioned in any thread that a BIOS update has worked for them.
I'll give it a shot, but I just installed XP from another computer onto my HDD, installed it into the PC in question.. and I get a "DISK BOOT FAILURE. INSERT SYSTEM DISK AND PRESS ENTER" error message, so I don't know what to think.