Asus RS120-E5/PA2 - Manual (Page 38)

Chapter 2: Hardware setup 2-20
To uninstall the system fans:
1. Disconnect a system fan cable
from the fan connector on the
motherboard.
To reinstall the system fan:
1. Insert the fan to the fan cage. The
airflow directional arrow on the
fan side should point towards the
system rear panel.
2. Connect the system fan cable to the
fan connector on the motherboard.
2. Lift the fan, then set aside.
3. Repeat step 1 to 2 to uninstall the
other system fans.