Asus M3N78 SE - Manual (Page 19)

ASUS M3N78 SE 1-9
1.6.2 Installing the heatsink and fan
The AMD Phenom™ FX / Phenom / Athlon™ / Sempron™ processor requires a specially
designed heatsink and fan assembly to ensure optimum thermal condition and performance
Follow these steps 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.
Ensure that you use only qualified heatsink and fan assembly.
• 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, ensure that a Thermal
Interface Material is properly applied to the CPU heatsink or
CPU before you install the heatsink and fan assembly.
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.
CPU Fan
CPU Heatsink
Retention bracket
Retention bracket lock
Retention Module Base