I you would format a harddrive, you would then create 1 partition as big as the drive itself. But the BIOS just says that the capacity of the device itself is 33 GB. That pc is at my grandparents house. I'll go there monday, and connect the other drive to the secondary IDE controller. Maybe those 2 harddisks on 1 IDE controller might be the problem. When I had the full 80 GB capacity on the old mainboard, I didn't had the other harddisk connected. That might be the problem.