Power button board
Description Spare part number
Power button board for use in HP EliteBook 740/840/HP ZBook 14 models 730959-001
Power button board for use in HP EliteBook 750/850 models 730822-001
Before removing the power button board, 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 following components:
a. Service cover (see
Service cover on page 51)
b. Battery (see
Battery on page 53)
c. Fan (see
Fan on page 79)
d. Keyboard (see
Keyboard on page 65)
e. Base enclosure (see
Base enclosure on page 73)
f. Heat sink (see
Heat sink on page 82)
Remove the power button board:
1. Disconnect the power button board cable from the power button board (1).
2. Remove the broadhead Phillips PM2.0×3.0 screw that secures the board (2) to the top cover.
86 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts
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