HP E1Z74UT User Manual Page 182
- Page / 245
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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Table 8-1 Solving Hardware Installation Problems (continued)
A new device is not recognized as part of the system.
Cause Solution
When the system advised you of changes to the configuration,
you did not accept them.
Reboot the computer and follow the instructions for accepting
the changes.
A plug and play board may not automatically configure when
added if the default configuration conflicts with other devices.
Use Windows Device Manager to deselect the automatic
settings for the board and choose a basic configuration that
does not cause a resource conflict. You can also use
Computer Setup to reconfigure or disable devices to resolve
the resource conflict.
To access Device Manager in Windows 7, click Start, select
Control Panel, and then select Device Manager.
To access Device Manager in Windows 8, from the Start
screen, type
c, select Control Panel from the list of
applications, and then select Device Manager.
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
Security > USB Security.
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 flashing LEDs are codes for specific
problems.
3. If you still cannot resolve the issue, contact Customer
Support.
172 Chapter 8 Troubleshooting without diagnostics
- Maintenance and Service Guide 1
- About This Book 3
- Table of contents 5
- 1 Product features 11
- Small Form Factor (SFF) 12
- Serial number location 17
- Software 18
- Windows 8 19
- Downloading Windows 8 updates 20
- 3 Illustrated parts catalog 21
- Misc parts 24
- Misc boards 26
- Computer major components 30
- Spare part 37
- Description 37
- 732772-001 Solenoid lock 37
- 4 Routine care, SATA drive 38
- Generating static 39
- Grounding the work area 40
- Operating guidelines 41
- Routine care 42
- Service considerations 43
- Cables and connectors 44
- Hard Drives 44
- SATA hard drives 45
- SATA hard drive cables 46
- SMART ATA drives 46
- Cable management 46
- 5 Removal and replacement 47
- Access panel 48
- Front bezel security 49
- Front bezel 50
- Expansion cards 56
- No. Guide Screw Device 62
- Removing a 5.25-inch drive 64
- Installing a 5.25-inch drive 64
- Power switch/LED assembly 78
- Speaker 645330-001 83
- Solenoid lock 641498-001 84
- Fan 636922-001 88
- 6 Removal and replacement 95
- Bezel blanks 100
- DDR3-SDRAM DIMMs 101
- Populating DIMM sockets 101
- Installing DIMMs 102
- Expansion card 104
- System board connections 108
- Drive positions 111
- Removing a 3.5-inch device 112
- Installing a 3.5-inch device 113
- Removing a slim optical drive 115
- Power supply 122
- Fan duct 125
- Description Spare part number 126
- Solenoid lock 732772-001 126
- Hood sensor 129
- Cable routing 130
- Front I/O assembly 131
- Power switch assembly 133
- Speaker 727149-001 135
- Fan sink 136
- Processor 137
- System board 139
- Computer Setup—File 144
- Computer Setup—Storage 145
- Computer Setup—Security 148
- Computer Setup—Power 153
- Computer Setup—Advanced 155
- 8 Troubleshooting without 158
- Helpful hints 159
- Solving general problems 161
- Solving power problems 165
- Solving hard drive problems 166
- Solving display problems 170
- Solving audio problems 176
- Solving printer problems 178
- Solving Network Problems 184
- Solving memory problems 187
- Solving processor problems 189
- Solving software problems 195
- 9 POST error messages 197
- Resetting the password jumper 211
- 11 HP PC Hardware Diagnostics 214
- 12 System backup and recovery 216
- Using Windows 8 Refresh 218
- Using Windows 8 Reset 219
- Creating recovery media 222
- System Restore 225
- System Recovery 226
- A Battery replacement 230
- Smart cover FailSafe key 233
- C Power cord set requirements 236
- Country-specific requirements 237
- D Specifications 238
- SFF specifications 239
- Rated Input Current 4A 240
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