Asus K8N-DRE - Manual (Page 121)

A S U S K 8 N - D R E A S U S K 8 N - D R E A S U S K 8 N - D R E A S U S K 8 N - D R E A S U S K 8 N - D R E 5 - 2 3 5 - 2 3 5 - 2 3 5 - 2 3 5 - 2 3
2. After selecting the drives, press <Esc>.
3. When prompted, select <Save changes, then exit this menu>, then
press <Enter> to create the RAID 1 set.