Asus Motherboard P5MT-M - Manual (Page 119)

A S U S P 5 M T - M A S U S P 5 M T - M A S U S P 5 M T - M A S U S P 5 M T - M A S U S P 5 M T - M 5 - 2 1 5 - 2 1 5 - 2 1 5 - 2 1 5 - 2 1
4. Select all the drives required for the RAID set, then press <Enter>. The
configurable array appears on screen.
5. Press <F10>, select the configurable array, then press <SpaceBar>.
The logical drive information appears including a Logical Drive menu
that allows you to change the logical drive parameters.