Acer Aspire 5739G Acer Aspire 5739G Series Service Guide - Page 132

External Unit Reassembly Process Replacing the CPU IMPORTANT:The CPU has a Pin1 locator that must be positioned corresponding to the marker on the CPU socket The following thermal pads are approved for use: • Silmore GP50 • Honeywell • Jet Motor 7762 The following thermal compounds are approved for use: • Eapus XR-PE 1. Raise the heat sink and hold it in a raised posotion. 2. Remove all traces of thermal grease or pad adhesive from the heat sink using a lint-free cloth or cotton swab and Isopropyl Alcohol, Acetone, or other approved cleaning agent. 3. Place the CPU into the socket. Take note of the Pin 1 locator in the image below. WARNING:Take care to prevent the pins from becoming bent while replacing the CPU. If you find it difficult to replace the CPU using this method, or lack the tools to properly insert the CPU into the socket, then follow the instructions provided in "Replacing the CPU (Alternate Procedure)" on page 100. 4. Apply a small amount of thermal grease or the supplied thermal pad to the centre of the heat sink. There is no need to spread grease manually, the force used during the installation of the Thermal Module is sufficient. 5. Using a flat screwdriver, turn the CPU socket latch clockwise 180° to lock the CPU in place. 122 Chapter 3