Asus P5MT - Manual (Page 107)

A S U S P 5 M T S e r i e s A S U S P 5 M T S e r i e s A S U S P 5 M T S e r i e s A S U S P 5 M T S e r i e s A S U S P 5 M T S e r i e s 5 - 7 5 - 7 5 - 7 5 - 7 5 - 7
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.