HP EliteBook 820 G1 Maintenance And Service Manual page 128

Description
Equipped with an Intel Core i3-4010U 1.70-GHz processor (3.00-MB L3 cache, 15 W) and
the Windows 8 Standard operating system
Equipped with an Intel Core i3-4010U 1.70-GHz processor (3.00-MB L3 cache, 15 W) and a
non-Windows 8 operating system
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
components:
a.
Battery (see
b.
Hard drive (see
c.
Keyboard (see
d.
RTC battery (see
e.
Top cover (see
f.
Heat sink (see
g.
Fan (see
NOTE: 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:
WWAN module (see
●
Solid-state drive (see
●
WLAN module (see
●
Memory modules (see
●
Remove the system board:
1.
Turn the top cover upside down with the front toward you.
2. Release the ZIF connector (1) to which the power button board cable is attached, and then
disconnect the power button board cable from the system board.
118 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts
Service cover on page
Battery on page 73)
Hard drive on page
Keyboard on page
RTC battery on page
Top cover on page
Heat sink on page
Fan on page 113)
WWAN module on page
Solid-state drive on page
WLAN module on page
Memory module on page
71), and then remove the following
75)
85)
93)
94)
111)
78)
80)
82)
84)
Spare part number
730557-501
730557-001
ENWW