Asus RS924A-E6/RS8 - Manual (Page 38)

Chapter 2: Hardware setup 2-16
2.7 SATAII/SAS backplane cabling
Connects a 8-pin plug
from power supply
Connects to the AMD ® SP5100 SATA connectors on the motherboard
Onboard SGPIO1/2/3/4:
Connects to the
SGPIO1/2 connector to
support Promise SAS
RAID SGPIO function.
Connects to the
SGPIO3/4 connector
to support PIKE card
SAS RAID SGPIO
function
SGPIO_SEL: Set to pin 2-3 to enable onboard
SP5100 SATA SGPIO function (default) or
enable optional PIKE SAS RAID SGPIO function
J1: Connects to the
power connector of
the slim-type optical
drive