Acer Aspire X1420G Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 34

Removing the Heat Sink Fan Assembly WARNING:The heat sink becomes very hot when the system is on. NEVER touch the heat sink with any metal or with your hands. 1. Use a long-nosed screwdriver to loosen the four screws on the heat sink, in the order as shown below. 2. Lift the heat sink fan assembly away from the mainboard. 3. Lay down the heat sink fan assembly, in an upright position, on top of the optical drive, as shown below, then disconnect the fan cable from the mainboard. 26 Aspire AX1400 Service Guide