202 Adding and Replacing Parts
3
Tighten the four captive screws, labeled "1" through "4," in consecutive
order.
Processor Module
CAUTION: Only trained service technicians are authorized to remove or replace
the component covered by the following procedure. See your Product Information
Guide for complete information about safety precautions, working inside the
computer, and protecting against electrostatic discharge.
Removing the Processor Module
CAUTION: Before you begin the following procedure, follow the safety
instructions in the Product Information Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by periodically touching an unpainted metal surface (such as the
back panel) on the computer.
NOTICE: Do not touch the processor die. Press and hold the processor down on
the substrate on which the die is mounted while turning the cam screw to prevent
intermittent contact between the cam screw and processor.
NOTICE: To avoid damage to the processor, hold the screwdriver so that it is
perpendicular to the processor when turning the cam screw.
NOTICE: To help prevent damage to the system board, remove the main battery
(see "Before Working Inside Your Computer" on page 156) before working inside the
computer.
1
Follow the instructions in "Before Working Inside Your Computer" on
page 156.
2
Remove the hinge cover (see "Removing the Hinge Cover" on page 173).
3
Remove the keyboard (see "Keyboard" on page 174).
4
Remove the display assembly (see "Removing the Display Assembly" on
page 176).
5
Remove the palm rest (see "Removing the Palm Rest" on page 193).
NOTICE: To ensure maximum cooling for the processor, do not touch the heat
transfer areas on the processor thermal-cooling assembly. The oils in your skin
reduce the heat transfer capability of the thermal pads.
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