HP EliteBook 820 G1 Maintenance And Service Manual page 124

4. Remove the fan (3).
NOTE:
The thermal material must be thoroughly cleaned from the surfaces of the heat sink and the
system board components each time the heat sink is removed. Replacement thermal material is included
with the heat sink and system board spare part kits. Thermal paste is used on the processor (1) and the
heat sink section (2) that services it.
Reverse this procedure to install the fan.
114 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts ENWW