1. osewill STEP ONE gt Pre installation Make sure the heat spreader on the top of the CPU die is perfectly clean The base of the heatsink is protected by a plastic cover which protecs the thermal interface compound that is pre applied to the heatsink This protective cover must be removed prior to installation Remove the transparent cover Grey thermal grease STEP THREE gt Clip Attachment Hold the heatsink to keep the bottom of the heatsink in contact with CPU Place the clip hook into the RM cut out using the a S thumb bar do the same for both clips Make sure the heatsink is correctly located COOLER RCX Z200 user manual STEP TWO gt Clip Placement Hook the end of the clip into the cut out in the retention module corner leg do the same for both clips Make sure the clips are located in the heatsink slots a j STEP FOUR gt Connect the Fan Power Connect the CPU cooler fan to the motherboard power connector marked CPU FAN This connector is keyed so the power lead can only be installed one way If a connector marked CPU FAN is not apparent on the board check the motherboard manual for fan connection information