Asus Motherboard P5ND2 - Manual (Page 26)

1-14 Chapter 1: Product introduction
1.6.3 Uninstalling the CPU heatsink and fan
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.
B
A
B
A
A
A B
B
4. Carefully remove the heatsink
and fan assembly from the
motherboard.