Acer TravelMate 4220 TravelMate 4520/4220, Extensa 4420/4120 Service Guide - Page 50

Removing the Processor 1. Use a flat screwdriver to turn the processor socket lock to the counter-clockwise to the unlock position (note the unlock icon). Torque value: 3 kgf-cm +/-15% 2. Hold the processor by its edges and remove it from its socket (U52). IMPORTANT: When installing a processor, note the golden arrow on the corner to make sure the processor is properly oriented over the socket. Refer to the figure above. 40 Chapter 3