Asus M2N-L - Manual (Page 28)

2- Chapter 2: Hardware information
2.3.2 Installing the heatsink and fan
The AMD Athlon™ 64 X2, AMD Athlon™ 64, AMD Athlon™ 64 FX, AMD
Sempron™, AMD Opteron™ 64 1000 series (dual core), and AMD Phenom™
processors require a specially designed heatsink and fan assembly to ensure
optimum thermal condition and performance.
To install the CPU heatsink and fan:
1. Place the heatsink on top of the installed CPU, making sure that the heatsink
fits properly on the retention module base.
Your boxed CPU heatsink and fan assembly should come with installation
instructions for the CPU, heatsink, and the retention mechanism. If the
instructions in this section do not match the CPU documentation, follow the
latter.
Retention module base
Retention bracket
• The retention module base is already installed on the motherboard
upon purchase.
• You do not have to remove the retention module base when
installing the CPU or installing other motherboard components.
• If you purchased a separate CPU heatsink and fan assembly, make
sure that a Thermal Interface Material is properly applied to the CPU
heatsink or CPU before you install the heatsink and fan assembly.
Make sure that you use only AMD-certified heatsink and fan assembly.