HP EliteBook 840 G1 Service Manual page 103

Description
System board with UMA graphics and an Intel Core i7-4600U processor for use with
the Windows 8 Standard operating system
System board with UMA graphics and an Intel Core i7-4600U processor for use with models
without the Windows 8 operating system
System board with discrete graphics and an Intel Core i7-4600U processor for use with
the Windows 8 Professional operating system
System board with discrete graphics and an Intel Core i7-4600U processor for use with
the Windows 8 Standard operating system
System board with discrete graphics and an Intel Core i7-4600U processor for use with models
without the 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 following components:
a. Service cover (see
b. Battery (see Battery on page
c.
Hard drive (see
d.
Fan (see Fan on page
e.
Keyboard (see
f.
Base enclosure (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 Heat sink on page
●
NOTE:
You do not have to remove the heat sink to remove the system board.
Solid-state drive (see
●
WLAN module (see
●
WWAN module (see
●
Service cover on page
50)
Hard drive on page 51)
77)
Keyboard on page 62)
Base enclosure on page
Memory module on page
81)
Solid-state drive (SSD) on page
WLAN module on page
WWAN module on page
48)
71)
56)
53)
60)
58)
Component replacement procedures
Spare part number
730809-501
730809-001
730810-601
730810-501
730810-001
91