HP ProBook 5220m HP ProBook 5220m Notebook PC - Maintenance and Service Guide - Page 79

System board, WLAN module see

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System board NOTE: The system board spare part kit includes replacement thermal material. Description System board (includes replacement thermal material) ● Includes Intel Arrandale I3-350M 2.26-GHz processor ● Includes Intel Arrandale I5-540M 2.53-GHz processor ● Includes Intel Arrandale I5-450M 2.4-GHz processor ● Includes Intel Arrandale I5-520M 2.4-GHz processor ● Includes Intel Celeron U3400 1.06-GHz processor Spare part number 610803-001 611373-001 614534-001 614535-001 614536-001 Before removing the system board, follow these steps: 1. Shut down 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 all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 40). 5. Remove the following components: a. SIM (see SIM on page 42) b. Switch cover (see Switch cover on page 51) c. Keyboard (see Keyboard on page 53) d. WWAN module (see WWAN module on page 45) e. Bluetooth module and cable (see Bluetooth module on page 67) f. WLAN module (see WLAN module on page 42) g. Hard drive (see Hard drive on page 48) h. Top cover (see Top cover on page 56) 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 module (see Memory module on page 47) ● WLAN module (see WLAN module on page 42) ● WWAN module (see WWAN module on page 45) ● Modem module (see Modem module on page 65) ● SIM (see SIM on page 42) Component replacement procedures 71

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System board
NOTE:
The system board spare part kit includes replacement thermal material.
Description
Spare part number
System board
(includes replacement thermal material)
●
Includes Intel Arrandale I3-350M 2.26-GHz processor
610803-001
●
Includes Intel Arrandale I5-540M 2.53-GHz processor
611373-001
●
Includes Intel Arrandale I5-450M 2.4-GHz processor
614534-001
●
Includes Intel Arrandale I5-520M 2.4-GHz processor
614535-001
●
Includes Intel Celeron U3400 1.06-GHz processor
614536-001
Before removing the system board, follow these steps:
1.
Shut down 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 all external devices connected to the computer.
3.
Disconnect the power from the computer by first unplugging the power cord from the AC outlet and
then unplugging the AC adapter from the computer.
4.
Remove the battery (see
Battery
on page
40
).
5.
Remove the following components:
a.
SIM (see
SIM
on page
42
)
b.
Switch cover (see
Switch cover
on page
51
)
c.
Keyboard (see
Keyboard
on page
53
)
d.
WWAN module (see
WWAN module
on page
45
)
e.
Bluetooth module and cable (see
Bluetooth module
on page
67
)
f.
WLAN module (see
WLAN module
on page
42
)
g.
Hard drive (see
Hard drive
on page
48
)
h.
Top cover (see
Top cover
on page
56
)
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 module (see
Memory module
on page
47
)
●
WLAN module (see
WLAN module
on page
42
)
●
WWAN module (see
WWAN module
on page
45
)
●
Modem module (see
Modem module
on page
65
)
●
SIM (see
SIM
on page
42
)
Component replacement procedures
71