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

Table Of Contents
Description Spare part number
512-GB, SATA-3 solid-state drive supporting TLC 829939-001
256-GB, SM841 Samsung locked solid-state drive supporting Opal2 (for use only on computer models
equipped with a 15.6-in. display assembly)
834423-001
256-GB, SM841 Samsung locked solid-state drive supporting Opal2 (for use only on computer models
equipped with a 14.0-in. display assembly)
834422-001
180-GB, SATA-3 solid-state drive (for use only on computer models equipped with a 15.6-in.
display assembly)
749262-001
180-GB, SATA-3 solid-state drive (for use only on computer models equipped with a 14.0-in.
display assembly)
749278-001
128-GB, SATA-3 solid-state drive (for use only on computer models equipped with a 15.6-in.
display assembly)
749261-001
128-GB, SATA-3 solid-state drive (for use only on computer models equipped with a 14.0-in.
display assembly in all countries and regions except Brazil
749277-001
128-GB, SATA-3 solid-state drive (for use only on computer models equipped with a 14.0-in.
display assembly in Brazil)
749280-001
Before removing the solid-state drive, 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 Battery on page 56).
5. Remove the service cover (see Service cover on page 57).
Remove the solid-state drive:
1. Remove the two Phillips screws (1) that secure the solid-state drive to the system board. (The solid-
state drive tilts up.)
2. Remove the solid-state drive (2) by pulling the drive away from the slot at an angle.
Component replacement procedures 71