Asus Motherboard P5MT-S Owner's Manual page 135

4. Use the arrow keys to select a RAID set member, then press
<SpaceBar> to mark. An X mark appears after the selected HDD.
5. Follow step 4 to select other members of the RAID set, then press
<Enter> when finished.
6. Select the stripe size from the
menu, then press <Enter>.
For server systems, we recommend that you use a lower array block size.
For multimedia computer systems used mainly for audio and video editing,
we recommend a higher array block size for optimum performance.
7. When prompted, use the keyboard to assign a name for the RAID 0
set, then press <Enter>.
ASUS P5MT-S 5-35