HP EliteDesk 800 G1 Tower PC (ENERGY STAR) Spezifikationen Seite 259
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Activity Beeps Possible cause Recommended action
Red Power LED flashes five
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.
5 Pre-video memory error. CAUTION: To avoid damage to the DIMMs or
the system board, you must unplug the computer
power cord before attempting to reseat, install, or
remove a DIMM module.
1. Reseat DIMMs.
2. Replace DIMMs one at a time to isolate the
faulty module.
3. Replace third-party memory with HP
memory.
4. Replace the system board.
Red Power LED flashes six
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.
6 Pre-video graphics error. For systems with a graphics card:
1. Reseat the graphics card.
2. Replace the graphics card.
3. Replace the system board.
For systems with integrated graphics, replace the
system board.
Red Power LED flashes seven
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.
7 System board failure
(ROM detected failure
prior to video).
Replace the system board.
Red Power LED flashes eight
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.
8 Invalid ROM based on
bad checksum.
1. Reflash the system ROM with the latest BIOS
image.
2. Replace the system board.
Red Power LED flashes nine
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.
9 System powers on but is
unable to boot.
1. Check that the voltage selector, located on
the rear of the power supply (some models),
is set to the appropriate voltage. Proper
voltage setting depends on your region.
2. Unplug the AC power cord from the
computer, wait 30 seconds, then plug the
power cord back in to the computer.
3. Replace the system board.
4. Replace the processor.
Interpreting POST diagnostic front panel LEDs and audible codes
247
- Maintenance and Service Guide 1
- About This Book 3
- Table of contents 5
- 1 Product features 13
- Small Form Factor (SFF) 14
- Ultra-slim Desktop (USDT) 14
- Serial number location 20
- Tower (TWR) 21
- Software 23
- Windows 8 24
- Downloading Windows 8 updates 25
- 3 Illustrated parts catalog 26
- Miscellaneous parts 29
- Mass storage devices 30
- Misc boards 31
- Computer major components 34
- 4 Routine care, SATA drive 47
- Generating static 48
- Grounding the work area 49
- Operating guidelines 50
- Routine care 51
- Service considerations 52
- Cables and connectors 53
- Hard Drives 53
- SATA hard drives 54
- SATA hard drive cables 55
- SMART ATA drives 55
- Cable management 55
- 5 Removal and replacement 56
- Expansion cards 65
- No. Guide Screw Device 72
- Removing a 5.25-inch drive 74
- Installing a 5.25-inch drive 74
- Power switch/LED assembly 89
- Solenoid lock 641498-001 95
- Fan 727135-001 99
- Power supply 101
- 6 Removal and replacement 106
- Access panel 107
- Front bezel 108
- Front bezel security 109
- Bezel blanks 111
- DDR3-SDRAM DIMMs 112
- Populating DIMM sockets 112
- Installing DIMMs 113
- Expansion card 115
- System board connections 119
- Drive positions 122
- Removing a 3.5-inch device 123
- Installing a 3.5-inch device 124
- Removing a slim optical drive 126
- Fan duct 136
- Description Spare part number 137
- Solenoid lock 732772-001 137
- Hood sensor 140
- Cable routing 141
- Front I/O assembly 142
- Power switch assembly 144
- Speaker 727149-001 146
- Fan sink 147
- Processor 148
- System board 150
- 7 Removal and replacement 153
- Bezel blank 157
- DDR3-SDRAM SODIMMs 159
- Populating SODIMM sockets 160
- Installing SODIMMs 161
- Front fan 162
- Optical drive 163
- Hard drive 166
- Speaker 689384-001 168
- Heat sink 169
- Drive cage 176
- Card reader 178
- WLAN module 180
- Graphics board 181
- Power switch 182
- Rear fan 185
- Antennas 186
- Port cover 191
- Power supply, external 191
- Computer Setup—File 194
- Computer Setup—Storage 195
- Computer Setup—Security 197
- Computer Setup—Power 202
- Computer Setup—Advanced 204
- 9 Troubleshooting without 207
- Helpful hints 208
- Solving general problems 210
- Solving power problems 214
- Solving hard drive problems 216
- Solving display problems 221
- Solving audio problems 226
- Solving printer problems 228
- Solving Network Problems 234
- Solving memory problems 238
- Solving processor problems 240
- Solving software problems 246
- 10 POST error messages 248
- Resetting the password jumper 262
- 12 HP PC Hardware Diagnostics 265
- 13 System backup and recovery 267
- Using Windows 8 Refresh 269
- Using Windows 8 Reset 270
- Creating recovery media 273
- System Restore 276
- System Recovery 277
- A Battery replacement 281
- B Power cord set requirements 284
- Country-specific requirements 285
- C Specifications 286
- SFF specifications 287
- USDT specifications 288
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