HP 721953-251 Datasheet download pdf (Page 56)

3. Remove the memory module (2) by pulling the module away from the slot at an angle.

NOTE: Memory modules are designed with a notch to prevent incorrect insertion into the memory

module slot.

NOTE: The computer uses two memory sockets. The top socket houses the expansion memory

module and the bottom socket houses the primary memory module. The removal procedure is the same

for both memory sockets.

Reverse this procedure to install a memory module.

46 Chapter 5 Removal and replacement procedures for Customer Self-Repair parts

1 2 ... 51 52 53 54 55 56 57 58 59 60 61 ... 146 147

HP ProBook 450 G0 Notebook PC 1
HP ProBook 455 G1 Notebook PC 1
Safety warning notice 5
Table of contents 7
1 Product description 11
Display 7 17
TouchPad 18
Front 13 23
Right 15 25
Service tag and PCID label 26
PCID label 27
3 Illustrated parts catalog 28
Computer major components 19 29
Computer major components 21 31
Display components 32
Plastics Kit 33
Cable Kit 34
Mass storage devices 35
Miscellaneous parts 36
Tools required 42
Service considerations 42
Cables and connectors 43
Drive handling 43
Grounding guidelines 44
Customer Self-Repair parts 47
Description Spare part number 48
Hard drive 50
Optical drive 53
Memory modules 55
WLAN/Bluetooth combo card 57
WWAN module 59
Keyboard 61
Speaker assembly 70
Fingerprint reader assembly 72
Power button board 73
Function board 75
Card reader board 76
USB/audio board 78
System board 79
Optical drive extension board 82
Power cable 82
Battery cable 84
RTC battery – WWAN models 85
Fan/heat sink assembly 87
Processor 90
Display assembly 92
Updating the BIOS 100
Downloading a BIOS update 101
Using MultiBoot 102
Using System Diagnostics 104
Using Setup Utility 105
Displaying system information 106
Exiting Setup Utility 107
Determining the BIOS version 108
Starting Computer Setup 110
Using Computer Setup 110
Backing up your information 114
Performing a system recovery 115
Using HP Software Setup 118
Using f11 recovery tools 122
13 Specifications 126
Hard drive specifications 128
DVD-ROM drive 130
14 Statement of Volatility 132
Non-volatile memory usage 134
Non-volatile memory usage 125 135
Questions and answers 136
16 Recycling 139
23. Remove the LCD panel 144
134 Chapter 16 Recycling 144

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HP 721953-251 Datasheet Page 56

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