HP ProBook 4540s HP ProBook 4540s Notebook PC HP ProBook 4440s Notebook PC HP - Page 71

Heat sink, Keyboard see

Get HP ProBook 4540s PDF manuals and user guides View all HP ProBook 4540s manuals
Add to My Manuals
Save this manual to your list of manuals

Page 71 highlights

Heat sink All heat sink spare part kits include replacement thermal material. Description For use in 4540s models: Heat sink for use in models with UMA graphics Heat sink for use in models with discrete graphics For use in 4440s/4441s models: Heat sink for use in models with discrete graphics Heat sink for use in models with UMA graphics Spare part number 683489-001 683490-001 683655-001 683656-001 Before removing the heat sink, 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 42). 5. Remove the following components: a. Bottom door (see Bottom door on page 44). b. Keyboard (see Keyboard on page 56) c. Heat shield (see Heat shield on page 59) d. Fan (see Fan on page 61) Remove the heat sink: 1. Position the computer upside-down. 2. To remove the discrete heat sink, in the order indicated, loosen the six captive Phillips screws (1) that secure the heat sink to the system board. Component replacement procedures 63

  • 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
Heat sink
All heat sink spare part kits include replacement thermal material.
Description
Spare part number
For use in 4540s models:
Heat sink for use in models with UMA graphics
683489-001
Heat sink for use in models with discrete graphics
683490-001
For use in 4440s/4441s models:
Heat sink for use in models with discrete graphics
683655-001
Heat sink for use in models with UMA graphics
683656-001
Before removing the heat sink, 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
42
).
5.
Remove the following components:
a.
Bottom door (see
Bottom door
on page
44
).
b.
Keyboard (see
Keyboard
on page
56
)
c.
Heat shield (see
Heat shield
on page
59
)
d.
Fan (see
Fan
on page
61
)
Remove the heat sink:
1.
Position the computer upside-down.
2.
To remove the discrete heat sink, in the order indicated, loosen the six captive Phillips screws
(1)
that secure the heat sink to the system board.
Component replacement procedures
63