Hp COMPAQ DX2718 MT Manuale Utente Scaricare il pdf (Pagina 106)

D–26 483941-001 Service Reference Guide

Troubleshooting Without Diagnostics

Contacting Customer Support

For help and service, contact an authorized reseller or dealer. To locate a reseller or dealer near

you, visit

www.hp.com.

✎

If you take the computer to an authorized reseller, dealer, or service provider for service,

remember to provide the setup and power-on passwords if they are set.

✎

Refer to the number listed in the warranty or in the Worldwide Telephone Numbers Guide on the

Library CD for technical assistance.

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Business PCs 1
1st Edition 1
Service Reference Guide 2
First Edition (February 2008) 3
Contents 4
A Connector Pin Assignments 6
B Power Cord Set Requirements 6
C POST Error Messages 6
E Memory 6
Redflag Linux 7
1.3 HP Software 8
2.1 Power-On Self-Test (POST) 9
2.2 Computer Setup Utilities 10
2.2.2 Computer Setup Menu 12
Computer Setup (Continued) 13
2.3.1 Backing up the CMOS 19
2.3.2 Restoring the CMOS 19
Desktop Management 20
3.2.2 Dual-State Power Button 21
3.2.3 Power Management 21
3.3 Security 22
Entering a User Password 23
Clearing Passwords 25
4.1 SATA 3.0 Hard Drives 26
4.2 SATA Hard Drive Cables 27
4.3 SATA SMART Drives 28
4.4 Drive Capacities 28
4.5 SATA BIOS 28
Disassembly Preparation 29
5.2.1 Generating Static 31
5.2.4 Grounding the Work Area 32
5.3 Routine Care 33
5.3.3 Cleaning the Keyboard 34
5.3.4 Cleaning the Monitor 34
5.3.5 Cleaning the Mouse 34
5.4 Service Considerations 35
5.4.3 Cables and Connectors 36
5.4.4 Hard Drives 36
MT chassis and SFF chassis) 38
(SFF chassis) 40
Removing the Front Bezel 41
Minitower Configuration 42
6.4 Front Drive Bezels 43
6.5 Memory 44
Installing a DIMM 46
6.6 Expansion Cards 47
Installing an Expansion Card 50
6.7 Cable Management 52
6.8 Drives 53
6.8.2 Removing a Drive 54
Removing the Hard disk 55
Releasing the Hard Drive Cage 55
Removing the Hard Drive Cage 56
Removing the Hard Drive 57
Desktop Drive Positions 57
Installing the Optical Drive 60
6. Press the latch 1 63
6.10 System Fan 65
6.11 Heatsink - MT chassis 66
6.12 Processor 67
6.13 System Board 69
6.14 Battery 70
6.14.1 Battery Holder 71
6.15 Power Supply 72
Connector Pin Assignments 73
Parallel Interface 74
Microphone 74
Headphone 75
Line-In Audio 75
Line-Out Audio 75
24-Pin Power 76
4-Pin Power (for CPU) 76
Power Cord Set Requirements 77
POST Error Messages 78
Preliminary Checklist 81
Solving General Problems 82
Solving Display Problems 87
Solving Audio Problems 90
Solving Printer Problems 92
Solving Keyboard Problems 93
Solving Network Problems 94
Solving Memory Problems 96
Solving Processor Problems 97
Solving Drive Key Problems 99
Restoring the Software 105
Contacting Customer Support 106

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Hp COMPAQ DX2718 MT Manuale Utente Pagina 106

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