HP ProBook 4420s HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Mai - Page 101

System board, Palm rest see

Get HP ProBook 4420s - Notebook PC PDF manuals and user guides View all HP ProBook 4420s manuals
Add to My Manuals
Save this manual to your list of manuals

Page 101 highlights

System board NOTE: The system board spare part kit includes replacement thermal material. Description System board (includes replacement thermal material) ● For use with UMA graphics subsystem, WWAN module, and 33.8-cm (13.3-in) displays ● For use with UMA graphics subsystem and 33.8-cm (13.3-in) displays ● For use with discrete graphics subsystem and 33.8-cm (13.3-in) displays ● For use with UMA graphics subsystem and 35.6-cm (14.0-in) displays ● For use with discrete graphics subsystem and 35.6-cm (14.0-in) displays ● For use with UMA graphics subsystem and 35.6-cm (14.0-in) displays in the People's Republic of China and Russia ● For use with discrete graphics subsystem and 35.6-cm (14.0-in) displays in the People's Republic of China and Russia Spare part number 599521-001 599520-001 599518-001 599523-001 599522-001 608267-001 608266-001 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 49). 5. Remove the following components: a. SIM (see SIM on page 50) b. Switch cover (see Switch cover on page 51) c. Keyboard (see Keyboard on page 53) d. Speakers (see Speakers on page 60) e. WWAN module (see WWAN module on page 62) f. Palm rest (see Palm rest on page 64) g. Bluetooth module and cable (see Bluetooth module on page 72) h. WLAN module (see WLAN module on page 69) i. Hard drive (see Hard drive on page 66) j. Optical drive (see Optical drive on page 57) k. Display assembly (see Display assembly on page 81) l. Top cover (see Top cover on page 89) m. Power connector and cable Component replacement procedures 93

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154
  • 155
  • 156
  • 157
  • 158
  • 159
  • 160
  • 161
  • 162
System board
NOTE:
The system board spare part kit includes replacement thermal material.
Description
Spare part number
System board
(includes replacement thermal material)
●
For use with UMA graphics subsystem, WWAN module, and
33.8-cm
(13.3-in) displays
599521-001
●
For use with UMA graphics subsystem and
33.8-cm
(13.3-in) displays
599520-001
●
For use with discrete graphics subsystem and
33.8-cm
(13.3-in) displays
599518-001
●
For use with UMA graphics subsystem and
35.6-cm
(14.0-in) displays
599523-001
●
For use with discrete graphics subsystem and
35.6-cm
(14.0-in) displays
599522-001
●
For use with UMA graphics subsystem and
35.6-cm
(14.0-in) displays in the People's
Republic of China and Russia
608267-001
●
For use with discrete graphics subsystem and
35.6-cm
(14.0-in) displays in the People's
Republic of China and Russia
608266-001
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
49
).
5.
Remove the following components:
a.
SIM (see
SIM
on page
50
)
b.
Switch cover (see
Switch cover
on page
51
)
c.
Keyboard (see
Keyboard
on page
53
)
d.
Speakers (see
Speakers
on page
60
)
e.
WWAN module (see
WWAN module
on page
62
)
f.
Palm rest (see
Palm rest
on page
64
)
g.
Bluetooth module and cable (see
Bluetooth module
on page
72
)
h.
WLAN module (see
WLAN module
on page
69
)
i.
Hard drive (see
Hard drive
on page
66
)
j.
Optical drive (see
Optical drive
on page
57
)
k.
Display assembly (see
Display assembly
on page
81
)
l.
Top cover (see
Top cover
on page
89
)
m.
Power connector and cable
Component replacement procedures
93