HP EliteBook 820 G1, HP EliteBook 725 G2, & EliteBook 720 G1 Notebook PCs - Maintenance and Service Guide

Description Spare part number
Equipped with an Intel Core i7-4500U 1.80-GHz (SC turbo up to 3.00-GHz) processor (4.00-MB L3 cache,
15 W) and a non-Windows 8 operating system (Gold Conversion Kit)
817920-0C1
Equipped with an Intel Core i5-4200U 1.60-GHz (SC turbo up to 2.60-GHz) processor (3.00-MB L3 cache,
15 W) and the Windows 8 Professional operating system (Gold Conversion Kit)
817917-6C1
Equipped with an Intel Core i5-4200U 1.60-GHz (SC turbo up to 2.60-GHz) processor (3.00-MB L3 cache,
15 W) and the Windows 8 Standard operating system (Gold Conversion Kit)
817917-5C1
Equipped with an Intel Core i5-4200U 1.60-GHz (SC turbo up to 2.60-GHz) processor (3.00-MB L3 cache,
15 W) and a non-Windows 8 operating system (Gold Conversion Kit)
817917-0C1
Equipped with an Intel Core i3-4010U 1.70-GHz processor (3.00-MB L3 cache, 15 W) and the Windows 8
Professional operating system (Gold Conversion Kit)
817916-6C1
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 (Gold Conversion Kit)
817916-5C1
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 (Gold Conversion Kit)
817916-0C1
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
Service cover on page 67), and then remove the following components:
a. Battery (see
Battery on page 69)
b. Hard drive (see
Hard drive on page 71)
c. Keyboard (see
Keyboard on page 81)
d. RTC battery (see
RTC battery on page 88)
e. Top cover (see
Top cover on page 89)
f. Heat sink (see
Heat sink on page 103)
g. Fan (see
Fan on page 105)
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
WWAN module on page 74)
●
Solid-state drive (see
Solid-state drive on page 76)
●
WLAN module (see
WLAN module on page 78)
●
Memory modules (see
Memory module on page 80)
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.
112 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts