Asus M2N-SLI - Manual (Page 155)

ASUS M2N-SLI Deluxe -
Deleting a RAID set
1. In the main JMB363 RAID BIOS menu, highlight Delete RAID Disk Drive
using the up/down arrow key then press <Enter>.
2. Use the space bar to select the RAID set you want to delete.
A selected set shows a sign before it. Press the <Del> key to delete the
set.
3. A dialogue box appears to confirm the action. Press <Y> to confirm;
otherwise, press <N>.
Pressing <Y> deletes all the data in the HDDs.