Asus RS300-E7/PS4 - SATA;SAS Backplane Cabling

Chapter 2: Hardware setup2-16
2.7 SATA/SAS backplane cabling
Connects a
8-pin plug from
power supply
SGPIO_SEL1jumper:
pins 1-2 (Onboard)
pins 2-3 (Add-on card)
Connects the data cables
connected to the motherboard
Connect to the SATA/SAS HDDs