Asus ESC4000 G2 - Manual (Page 62)

4-6 Chapter 4: Motherboard information
5. LSI MegaRAID or Intel RSTe selection jumper (3-pin RAID_SEL1)
This jumper allows you to select the PCH SATA RAID mode to use LSI MegaRAID
software or Intel ® Rapid Storage Technology enterprise 3.0 RAID. Place the
jumper caps over pins 1–2 if you want to use the LSI MegaRAID software RAID
Utility (default). Otherwise, place the jumper caps to pins 2–3 to use the Intel ®
Rapid Storage Technology Enterprise Option ROM Utility.
6. ME firmware force recovery setting (3-pin ME_RCVR1)
This jumper allows you to force Intel Management Engine (ME) boot from
recovery mode when ME become corrupted.