HP ProBook 450 G2 Notebook PC HP ProBook 455 G2 Notebook PC Maintenance and Service Guide

Card reader board
Description Spare part number
Card reader board for use in HP 450 models 768133-001
Card reader board for use in HP 455 models 780894-001
Before removing the card reader board, follow these steps:
1. Shut down 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 all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet, and
then unplugging the AC adapter from the computer.
4. Remove the battery (see
Battery on page 43).
5. Remove the following components:
a. Service doors (see
Service door on page 44).
b. Keyboard (see
Keyboard on page 56)
c. Hard drive (
Hard drive on page 46)
d. Optical drive (
Optical drive on page 50)
e. Top cover (see
Top cover on page 64)
Remove the card reader board:
NOTE: Before you remove the card reader, make sure nothing (memory card or plastic insert) in installed.
1. Position the top cover upside-down.
2. Disconnect the cable from the board (1).
3. Remove the two Phillips PM2.5×4.0 screws (2) that secure the card reader board to the computer.
Component replacement procedures 75