Using SeaTools' Set Capacity feature to overcome BIOS capacity limitation
The ability to "Set Capacity" is a feature in SeaTools for DOS that will instruct the selected hard drive to report a size smaller than its true capacity during boot.
I still suspect my drive is bad even though it passes all of the SeaTools tests
SeaTools thoroughly tests your Seagate, Maxtor-brand, and Quantum-brand ATA drives.
Set Drive Size with Seatools for DOS
Sometimes it is necessary to use the SeaTools for DOS software to get the drive back to its native capacity.