HP EliteBook 840 G2 Notebook PC Maintenance And Service Manual page 104

Description
Equipped with an Intel Core i3-5010U 2.10-GHz processor (3.0-MB L3 cache, dual core, 15-W), Intel HD
Graphics 5500 graphics subsystem with UMA memory, and the Windows 8 Standard operating system
for use only on HP EliteBook 840 G2 Notebook PC and HP EliteBook 740 G2 Notebook PC
computer models
Equipped with an Intel Core i3-5010U 2.10-GHz processor (3.0-MB L3 cache, dual core, 15-W), Intel HD
Graphics 5500 graphics subsystem with UMA memory, and a non-Windows 8 operating system for use
only on HP EliteBook 840 G2 Notebook PC and HP EliteBook 740 G2 Notebook PC computer models
Before removing the system 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 service cover (see
a. Battery (see
b. Keyboard (see
c. Base enclosure (see
d. Fan (see
e. Heat sink (see
When replacing the system board, be sure that the following components are removed from the defective
system board and installed on the replacement system board:
●
Memory modules (see
●
Heat sink (see
●
WLAN module (see
●
WWAN module (see
Remove the system board:
1. Position the computer right side up.
2. Open the computer as far as it will open.
94 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts
Service cover on page
Battery on page 53)
Keyboard on page 63)
Base enclosure on page
Fan on page 77)
Heat sink on page 84)
Memory module on page
Heat sink on page 84)
WLAN module on page
WWAN module on page
51), and then remove the following components:
75)
62)
60)
58)
Spare part number
799509-501
799509-001
ENWW