Asus Motherboard P5MT-S Owner's Manual page 164

4. When prompted, insert the RAID driver disk to the floppy disk drive,
then press <Enter>.
5. When prompted, select the floppy disk drive (fd0) as the driver
update medium, select OK, then press <Enter>.
The drivers for the RAID controller are installed to the system.
6-10 Chapter 6: Driver installation