I have an old PC I've set up as a server for the home network, and it's being awkward by refusing to boot from anything but the hard drive. I've tried changing boot devices in the BIOS, and CONFIRMED that the changes stick, but even so it reports the hard drive not detected (unless I have one in) and stops.

Can anyone suggest a fix? Ubuntu's dmidecode gives me the following info:

Quote

BIOS Information
Vendor: Award Software International, Inc.
Version: F2
Release Date: 05/30/2003
Address: 0xE0000
Runtime Size: 128 kB
ROM Size: 256 kB
Characteristics:
PCI is SUPPORTED
PNP is supported
APM is supported
BIOS is upgradeable
BIOS shadowing is allowed
Boot from CD is supported
Selectable boot is supported
BIOS ROM is socketed
EDD is supported
5.25"/360 KB floppy services are supported (int 13h)
5.25"/1.2 MB floppy services are supported (int 13h)
3.5"/720 KB floppy services are supported (int 13h)
3.5"/2.88 MB floppy services are supported (int 13h)
Print screen service is supported (int 5H)
8042 keyboard services are supported (int 9h)
Serial services are supported (int 14h)
Printer services are supported (int 17h)
CGA/mono video services are supported (int 10h)
ACPI is supported
USB legacy is supported
AGP is supported
LS-120 boot is supported
ATAPI Zip drive boot is supported
Function key-initiated network boot is supported

Base Board Information
Manufacturer: Gigabyte Technology Co., Ltd.
Product Name: GA-8SG800P
Version: 1.x
Serial Number: