X8SIL/X8SIL-F
7
8
Align the four heatsink fasteners with the mounting holes on the moth- erboard. Gently push the pairs of diagonal fasteners (#1 & #2, and #3 & #4) into the mounting holes until you hear a click. (Note: Make sure to orient each fastener so that the narrow end of the groove is pointing outward.) 
Repeat Step 7 to insert all four heat- sink fasteners into the mounting holes.
9
Once all four fasteners are se- curely inserted into the mounting holes and the heatsink is proper- ly installed on the motherboard, connect the heatsink fan wires to the CPU Fan connector.
