Asus P9D-I - Manual (Page 42)

2-22 Chapter 2: Hardware information
4. RAID configuration utility selection (3-pin RAID_SEL1)
This jumper allows you to select the RAID configuration utility to use when you create
disk arrays. Place the jumper caps over pins 1–2 if you want to use the LSI Logic
embedded SATA RAID Setup Utility (default); otherwise, place the jumper caps to pins 2–
3 to use the Intel
® Rapid Storage Technology enterprise SATA Option ROM Utility.