Asus RS120-E4/PA4 - Manual (Page 34)

Chapter 2: Hardware setup 2-18
2.7 SATA backplane cabling
FAN_IN1 connects the fan cable
from FRNT_FAN4 on the MB
Connect the system fan cables
Connect the SATA HDDs
Connects the device fan cable
Connects a 8-pin plug from
power supply
Connects the SATA cable
from SATA1 (Port0) on
the MB
CON1_FAN
*The system fans rotate at full speed during power on when the backplane
FAN_IN1 connector cable is not connected to the FRNT_FAN4 connector on the
motherboard.
Connects the device fan cable
Connects the SATA cable from
SATA2 (Port1) on the MB
Connects the SATA cable from
SATA3 (Port2) on the MB
Connects the SATA cable from
SATA4 (Port3) on the MB
CON2_FAN CON3_FAN CON4_FAN