Installing memory module1 Insert the memory module into the connector until snaps in.2 Install the base cover.3 Follow the procedures in After working inside your computer.Heat sinkRemoving heat sink assemblyHeat sink assembly comprises of heat sink and the system fan.1 Follow the procedure in Before working inside your computer.2 Remove the base cover.3 To remove the heat sink assembly:NOTE: To identify the number of screws, see screw list.a Disconnect the fan cable from the system board [1].b Remove the M2.0 x 5.0 screws that secure the heat sink and the M2.0 x 3.0 screws that secure the fan to the system board [2].NOTE: Remove the screws in the order of the callout numbers [1, 2, 3, 4] as indicated on the heat sink.c Lift the heat sink assembly from the system board [3].20 Removing and installing components