HP ProDesk 490 G2 Spezifikationen PDF herunterladen (Seite 61)

Front I/O and power switch assembly

1. Prepare the computer for disassembly (Preparation for disassembly on page 25).

2. Remove the access panel (

Access panel on page 26).

3. Remove the front bezel (

Front bezel on page 27).

4. From the inside of the computer, disconnect the three front I/O cables from the following system board

connectors:

●

PB/LED

●

FRONT USB3.0

●

FRONT AUD

NOTE: System board layout may vary.

HP ProBook 400 and 490 G2 models

Front I/O and power switch assembly 51

1 2 ... 56 57 58 59 60 61 62 63 64 65 66 ... 159 160

Maintenance and Service Guide 1
Safety warning notice 3
Table of contents 5
1 Product features 11
Front panel components 12
Serial number location 15
Downloading Windows 7 updates 16
Downloading Windows 8 updates 17
3 Illustrated parts catalog 19
Computer major components 11 21
Misc parts 23
Drives 15 25
PCI boards 26
Generating static 27
Grounding the work area 28
Operating guidelines 29
Routine care 30
Service considerations 31
Cables and connectors 32
Hard Drives 32
Lithium coin cell battery 32
SATA hard drives 33
SATA hard drive cables 33
SMART ATA drives 33
Cable management 33
Microtower 35
Access panel 36
Front bezel 37
Optical drive bezel blank 38
DDR3-SDRAM DIMMs 39
Installing DIMMs 41
Expansion cards 42
Drive positions 48
Removing a slim optical drive 49
WLAN module 55
WLAN module 47 57
RTC battery 58
DisplayPort connector module 60
HP ProBook 480 G2 models 62
Fan sink 64
Fan sink 55 65
Processor 66
Speaker 59 69
Description 70
Fan, non-recycled 70
Power supply 72
Power supply 65 75
System board 76
System board 69 79
System board 71 81
Computer Setup—File 85
Computer Setup—Storage 86
Computer Setup—Security 87
Computer Setup—Power 90
Computer Setup—Advanced 91
Safety and comfort 93
Helpful hints 94
Solving general problems 95
Solving general problems 87 97
Solving power problems 99
Solving hard drive problems 100
Solving display problems 103
Solving display problems 95 105
Solving audio problems 107
Solving printer problems 109
Solving Network Problems 114
Solving Network Problems 105 115
Solving Network Problems 107 117
Solving memory problems 118
Solving processor problems 119
Solving software problems 124
Solving software problems 115 125
8 POST error messages 126
Resetting the password jumper 136
10 HP PC Hardware Diagnostics 140
11 System backup and recovery 142
Creating recovery media 145
System Restore 147
System Recovery 148
Recommended Applications 151
A Power cord set requirements 152
Country-specific requirements 153
B Statement of Volatility 154
C Specifications 156

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