HP EliteBook 720 Maintenance and Service Guide - Page 86

System board, RTC battery see

Get HP EliteBook 720 PDF manuals and user guides View all HP EliteBook 720 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 86 highlights

System board NOTE: The system board spare part kit includes the battery connector bracket and replacement thermal material. All system boards use the following part numbers: xxxxxx-001: Windows 7 or non-Windows operating systems xxxxxx-501: Windows 8.1 Standard operating system xxxxxx-601: Windows 8.1 or Windows 10 operating system Description System board for use only on computer models equipped with: Intel Core i7-5600U processor Intel Core i7-5500U processor Intel Core i5-5300U processor Intel Core i5-5200U processor Intel Core i3-5010U processor Spare part number 781858-xxx 781857-xxx 781856-xxx 781855-xxx 781854-xxx 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 37), and then remove the following components: a. Battery (see Battery on page 39) b. Hard drive (see Hard drive/solid-state drive on page 41) c. Keyboard (see Keyboard on page 50) d. RTC battery (see RTC battery on page 56) e. Top cover (see Top cover on page 57) f. Heat sink (see Heat sink on page 72) g. Fan (see Fan on page 74) 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 44) ● Solid-state drive (see M.2 solid-state drive on page 46) ● WLAN module (see WLAN module on page 47) ● Memory modules (see Memory module on page 49) Remove the system board: 76 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts

  • 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
System board
NOTE:
The system board spare part kit includes the battery connector bracket and replacement thermal
material.
All system boards use the following part numbers:
xxxxxx-001: Windows 7 or non-Windows operating systems
xxxxxx-501: Windows 8.1 Standard operating system
xxxxxx-601: Windows 8.1 or Windows 10 operating system
Description
Spare part number
System board for use only on computer models equipped with:
Intel Core i7-5600U processor
781858-xxx
Intel Core i7-5500U processor
781857-xxx
Intel Core i5-5300U processor
781856-xxx
Intel Core i5-5200U processor
781855-xxx
Intel Core i3-5010U processor
781854-xxx
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
37
), and then remove the following components:
a.
Battery (see
Battery
on page
39
)
b.
Hard drive (see
Hard drive/solid-state drive
on page
41
)
c.
Keyboard (see
Keyboard
on page
50
)
d.
RTC battery (see
RTC battery
on page
56
)
e.
Top cover (see
Top cover
on page
57
)
f.
Heat sink (see
Heat sink
on page
72
)
g.
Fan (see
Fan
on page
74
)
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
44
)
●
Solid-state drive (see
M.2 solid-state drive
on page
46
)
●
WLAN module (see
WLAN module
on page
47
)
●
Memory modules (see
Memory module
on page
49
)
Remove the system board:
76
Chapter 6
Removal and replacement procedures for Authorized Service Provider parts