HP 4540s Specifications download pdf (Page 94)

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7. For 4540s models, remove the following screws that secure the top cover to the computer:

(1) 2 Phillips PM2.0×2.5 screws from the optical drive bay

(2) 3 Phillips PM2.0×2.0 broadhead screws from the battery bay

8. For 4440s/4441s models, remove the following screws that secure the top cover to the

computer:

(1) 3 Phillips PM2.0×2.5 screws from the optical drive bay

(2) 2 Phillips PM2.0×2.0 screws from the battery bay

86 Chapter 4 Removal and replacement procedures

1 2 ... 89 90 91 92 93 94 95 96 97 98 99 ... 173 174

HP ProBook 4540s Notebook PC 1
HP ProBook 4440s Notebook PC 1
HP ProBook 4441s Notebook PC 1
Safety warning notice 3
Table of contents 5
1 Product description 9
Display 9 17
Display - SUSE Linux models 19
TouchPad 20
Keys – Windows models 24
Model 4440s/4441s 25
Keys - SUSE Linux models 26
Bottom 23 31
3 Illustrated parts catalog 32
PCID label 33
Computer major components 34
Computer major components 27 35
Computer major components 29 37
Computer major components 33 41
Computer major components 35 43
Display components 44
Plastics Kit 45
Cable Kit 46
Mass storage devices 47
Miscellaneous parts 48
Tools required 58
Service considerations 58
Cables and connectors 59
Drive handling 59
Grounding guidelines 60
Bottom door 66
Optical drive 68
Hard drive 70
Memory modules 72
WWAN module 74
WLAN/Bluetooth combo card 76
Keyboard 78
Heat shield 81
Heat sink 85
Processor 88
Top cover 90
(2) 11 Torx T8M2.5×6.0 screws 92
Fingerprint reader board 97
Speaker assembly 99
Description Spare part number 101
Audio board 103
USB connector assembly 104
Battery cable 106
System board 107
RTC battery 111
Power cable 117
Latch assembly 118
Display assembly 120
System Diagnostics 128
Updating the BIOS 130
BIOS Setup Menu 132
Determining the BIOS version 140
Downloading a BIOS update 140
6 Specifications 142
Hard drive specifications 145
7 Backup and recovery 149
Backing up your information 150
Performing a system recovery 151
Using f11 recovery tools 152
Creating backups 158
8 Power cord set requirements 162
9 Recycling 165

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HP 4540s Specifications Page 94

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