Base Enclosure - HP ProBook 640 G1 Maintenance And Service Manual

Thermal locations for computer models equipped with discrete graphics are shown in the following
illustration:
●
Thermal paste is used on the processor (1) and the heat sink section (2) that services it.
●
Thermal paste is used on the graphics board processor (3) and the heat sink section (4) that services it
Reverse this procedure to install the fan/heat sink assembly.

Base enclosure

Description
Base enclosure
For 15.6-in. models
For 14-in. models
Before removing the base enclosure, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the battery (see
a. Service cover (see
b. Hard drive (see
c. Optical drive (see
82 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts
Battery on page 56), and then remove the following components:
Service cover on page
Hard drive on page 58)
Optical drive on page 69)
57)
Spare part number
738692-001
738681-001