What do you have set for these settings in the BIOS? >>>
Onboard SATA/IDE Device (GIGABYTE SATA2 Chip) ............. Enabled
Onboard SATA/IDE Ctrl Mode (GIGABYTE SATA2 Chip) ........... IDE
And is this IDE Drive the ONLY drive you have on the IDE Ribbon cable, if so do you have it set properly? That would be Device on the End of the Cable for Master and Master set on the jumper, or device on the middle of the cable for slave and slave set for the jumper? Have you tried another IDE cable as well?
What drive is this? And when you say you tested it on another setup, what did you do? Can you see and use the drive on another setup? Just checking to be sure because some drives must be made ready (Set active and Formatted) for first use with the manufacturers tools
When you was in device manager, or now, did you scan for new devices? If not, please also try that