HP EliteDesk 705 35W G4 Desktop Mini PC Manuel d'utilisateur Page 23
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- MARQUE LIVRES
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4 Removal and replacement procedures
Adherence to the procedures and precautions described in this chapter is essential for proper service. After
completing all necessary removal and replacement procedures, run the Diagnostics utility to verify that all
components operate properly.
NOTE: Not all features listed in this guide are available on all computers.
NOTE: HP continually improves and changes product parts. For complete and current information on
supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then
follow the on-screen instructions.
Warnings and cautions
Before performing upgrades be sure to carefully read all of the applicable instructions, cautions, and
warnings in this guide.
WARNING! To reduce the risk of personal injury from electrical shock, hot surfaces, or re:
Disconnect the power cord from the AC outlet and allow the internal system components to cool before you
touch them.
Do not plug telecommunications or telephone connectors into the network interface controller (NIC)
receptacles.
Do not disable the power cord grounding plug. The grounding plug is an important safety feature.
Plug the power cord into a grounded (earthed) AC outlet that is easily accessible at all times.
To reduce the risk of serious injury, read the Safety & Comfort Guide. The Safety & Comfort Guide also
provides important electrical and mechanical safety information. The
Safety & Comfort Guide is available on
the web at http://www.hp.com/ergo.
WARNING! Energized and moving parts inside.
Disconnect power to the equipment before removing the enclosure.
Replace and secure the enclosure before re-energizing the equipment.
IMPORTANT: Static electricity can damage the electrical components of the computer or optional
equipment. Before beginning these procedures, ensure that you are discharged of static electricity by briey
touching a grounded metal object. See Electrostatic discharge information on page 8 for more information.
When the computer is plugged into an AC power source, voltage is always applied to the system board. To
prevent damage to internal components, you must disconnect the power cord from the power source before
opening the computer.
NOTE: Your computer model may look slightly dierent from the illustrations in this chapter.
Warnings and cautions 15
- Maintenance and Service Guide 1
- Safety warning notice 3
- Table of contents 5
- 1 Product features 9
- Front panel components 10
- Rear panel components 11
- Serial number location 11
- 2 Illustrated parts catalog 12
- Computer major components 5 13
- Miscellaneous parts 14
- Miscellaneous parts 7 15
- Generating static 16
- Grounding the work area 17
- Operating guidelines 18
- Routine care 19
- Service considerations 20
- Hard Drives 21
- Lithium coin cell battery 21
- SATA hard drives 22
- Warnings and cautions 23
- Preparation for disassembly 24
- Front bezel dust lter 24
- Access panel 25
- Front bezel 26
- Hood sensor 27
- Hard drive 29
- Hard drive connector 30
- Drive cage 31
- WLAN module 35
- Expansion connector board 39
- Memory modules 40
- Memory modules 35 43
- Heat sink 45
- Processor 47
- System board 48
- System board components 51
- Internal WLAN antenna cables 52
- Computer Setup–Main 57
- Computer Setup—Security 59
- Computer Setup—Advanced 62
- Computer Setup—UEFI Drivers 66
- Safety and comfort 67
- Helpful hints 68
- Solving general problems 69
- Solving general problems 63 71
- Solving power problems 72
- Solving hard drive problems 73
- Solving display problems 76
- Solving display problems 69 77
- Solving display problems 71 79
- Solving audio problems 80
- Solving printer problems 81
- Solving network problems 85
- Solving memory problems 87
- Solving software problems 90
- Solving software problems 83 91
- Resetting the password jumper 99
- A Power Cord Set Requirements 107
- Country-Specic Requirements 108
- Nonvolatile memory usage 111
- Questions and answers 113
- C Specications 115
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