Asus KCMR-D12 User Guide - Page 31

2.3.2 Installing the CPU heatsink and fan The AMD Opteron™ 4100 series processor requires a specially designed heatsink and fan assembly to ensure optimum thermal condition and performance. • 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. • Ensure that you use only AMD-certified heatsink and fan assembly. If you purchased a separate CPU heatsink and fan assembly, ensure that the Thermal Interface Material is properly applied to the CPU heatsink or CPU before you install the heatsink and fan assembly. Ensure that you have installed the motherboard to the chassis before you install the CPU fan and heatsink assembly. To install the CPU heatsink and fan 1. Place the heatsink on top of the installed CPU, ensuring that the heatsink fits properly on the retention module base. Retention bracket lock Retention bracket CPU fan CPU heatsink 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. ASUS KCMR-D12 2-13