HP ProBook 640 G1, 645 G1, 650 G1, and 655 G1 Notebook PCs - Maintenance and Service Guide

a. Service cover (see Service cover on page 57)
b. Hard drive (see Hard drive on page 58)
c. Optical drive (see Optical drive on page 69)
d. Keyboard (see Keyboard on page 72)
e. Base enclosure (see Base enclosure on page 82)
Remove the smart card reader:
1. Release the ZIF connector (1) to which the smart card reader cable is attached, and then disconnect the
smart card reader cable from the system board.
2. Remove the two Torx screws (2) that secure the smart card reader to the base enclosure.
3. Remove the smart card reader (3).
Reverse this procedure to install the smart card reader and cable.
System board
NOTE: The system board spare part kit includes battery connector bracket and replacement
thermal material.
Description Spare part number
For use on computer models equipped with an Intel processor, the QM87 chipset, a graphics subsystem
with discrete memory, a 15.6-in. display assembly, a backlit keyboard, and the Windows 10 or
Windows 8 Professional operating system
801636-601
For use on computer models equipped with an Intel processor, the QM87 chipset, a graphics subsystem
with discrete memory, a 15.6-in. display assembly, a backlit keyboard, and the Windows 10 or
Windows 8 Standard operating system
801636-501
For use on computer models equipped with an Intel processor, the QM87 chipset, a graphics subsystem
with discrete memory, a 15.6-in. display assembly, a backlit keyboard, and a non-
Windows operating system
801636-001
System board 89