Maintenance and Service Guide

Heat sink assembly
NOTE: The heat sink assembly spare part kit includes replacement thermal material.
Table 6-3 Heat sink description and part number
Description Spare part number
Heat sink L60623-001
Before removing the heat sink assembly, follow these steps:
1. Prepare the computer for disassembly (Preparation for disassembly on page 32).
2. Remove the bottom cover (see Bottom cover on page 32).
3. Disconnect the battery cable from the system board (see Battery on page 45).
Remove the heat sink assembly:
1. Loosen the four captive screws on the heat sink following the sequence stamped on the heat sink (1),
and then remove the heat sink from the system board (2).
IMPORTANT: Take extreme care when removing the heat sink and fan assembly. The heatpipe is very
fragile and can be easily damaged and bent during removal.
48 Chapter 6 Removal and replacement procedures for authorized service provider parts