Jumper the 40Gb drive as master and connect it to the main Primary IDE connector (not RAID). Then boot to the drive vendor's installation floppy (MaxBlast for Maxtor, Drive Fitness Test for IBM, Data LifeGuard for WD). Run all the diagnostics, including write testing (which will also low level format the drive).
If everything checks out okay, go to the Abit site and see if there is a BIOS update and install it.
Then try reinstalling with the drive connected to the main Primary IDE port, not a RAID port.
If you still have problems with the installation, you may have an overheating problem in the system, or a defective motherboard, CPU or memory.