Asus P9D-E/4L - Manual (Page 32)

2-12 Chapter 2: Hardware information
3. Connect the CPU fan cable to the connector on the motherboard labeled CPU_FAN1.
DO NOT forget to connect the CPU fan connector! Hardware monitoring errors can occur if
you fail to plug this connector.
2.3.3 Uninstalling the CPU heatsink and fan
A
A
B
B
A
A B
B
4. Carefully remove the heatsink and fan assembly from the motherboard.
To uninstall the CPU heatsink and fan:
1. Disconnect the CPU fan cable from the
connector on the motherboard.
2. Rotate each fastener counterclockwise.
3. Pull up two fasteners at a time in a
diagonal sequence to disengage the
heatsink and fan assembly from the
motherboard.