HP EliteDesk 800 65W G3 Desktop Mini PC User Manual Page 96
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- Table of contents
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WARNING! When the computer is plugged into an AC power source, voltage is always applied to the system
board. To reduce the risk of personal injury from electrical shock and/or hot surfaces, be sure to disconnect
the power cord from the wall outlet and allow the internal system components to cool before touching.
Table 6-1 Solving Hardware Installation Problems
A new device is not recognized as part of the system.
Cause Solution
Device is not seated or connected properly. Ensure that the device is properly and securely connected and
that pins in the connector are not bent down.
Cable(s) of new external device are loose or power cables are
unplugged.
Ensure that all cables are properly and securely connected and
that pins in the cable or connector are not bent down.
Power switch of new external device is not turned on. Turn o the computer, turn on the external device, then turn on
the computer to integrate the device with the computer system.
When the system advised you of changes to the conguration,
you did not accept them.
Reboot the computer and follow the instructions for accepting the
changes.
A plug and play board may not automatically congure when
added if the default conguration conicts with other devices.
Use Windows Device Manager to deselect the automatic settings
for the board and choose a basic conguration that does not
cause a resource conict. You can also use Computer Setup to
recongure or disable devices to resolve the resource conict.
To access Device Manager in Windows 7, click Start, select Control
Panel, and then select Device Manager.
To access Device Manager in Windows 10, type device
manager in the taskbar search box, and then select Device
Manager from the list of applications.
USB ports on the computer are disabled in Computer Setup. Run the Computer Setup utility and ensure that Device available
is selected for appropriate USB ports under Advanced > Port
Options.
Computer will not start.
Cause Solution
Wrong memory modules were used in the upgrade or memory
modules were installed in the wrong location.
1. Review the documentation that came with the system to
determine if you are using the correct memory modules and
to verify the proper installation.
NOTE: DIMM1 or XMM1 must always be installed. DIMM1
must be installed before DIMM2, and DIMM3 must be
installed before DIMM4.
2. Observe the beeps and LED lights on the front of the
computer. Beeps and ashing LEDs are codes for specic
problems.
3. If you still cannot resolve the issue, contact Customer
Support.
88 Chapter 6 Troubleshooting without diagnostics
- Maintenance and Service Guide 1
- Safety warning notice 3
- Table of contents 5
- 1 Product features 9
- Serial number location 13
- 2 Illustrated parts catalog 14
- Misc parts 17
- Generating static 20
- Grounding the work area 21
- Operating guidelines 22
- Routine care 23
- Service considerations 24
- Cables and connectors 25
- Hard Drives 25
- Lithium coin cell battery 25
- SATA hard drives 26
- SATA hard drive cables 26
- SMART ATA drives 26
- Cable management 27
- Preparation for disassembly 28
- Top cover 29
- Front bezel 30
- Front bezel dust lter 31
- Thermal sensor 32
- SODIMM specications 33
- Populating SODIMM sockets 34
- Replacing SODIMMs 35
- Hard drive 37
- Hard drive cable 39
- Drive cage 41
- WLAN module 44
- WLAN module 37 45
- External antenna 46
- External antenna 39 47
- RTC battery 48
- Heat sink 51
- Heat sink 45 53
- Processor 54
- Option board 57
- System board 58
- System board callouts 60
- Computer Setup–Main 67
- Computer Setup—Security 69
- Computer Setup—Advanced 71
- Computer Setup—UEFI Drivers 76
- Safety and comfort 77
- Helpful hints 78
- Solving general problems 79
- Solving general problems 73 81
- Solving power problems 83
- Solving hard drive problems 84
- Solving display problems 87
- Solving display problems 81 89
- Solving audio problems 91
- Solving printer problems 93
- Solving network problems 97
- Solving network problems 91 99
- Solving memory problems 100
- Solving software problems 104
- Resetting the password jumper 112
- 10 System backup and recovery 117
- Backing up your information 119
- System Restore 120
- System Recovery 120
- Restore and recovery 125
- Using Windows tools 125
- A Power Cord Set Requirements 128
- Country-Specic Requirements 129
- Nonvolatile memory usage 132
- Nonvolatile memory usage 125 133
- Questions and answers 134
- C Specications 136
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