Compaq 4000S Specifiche Pagina 128
- Pagina / 188
- Indice
- SEGNALIBRI
Valutato. / 5. Basato su recensioni clienti
System does not power on and the LEDs on the front of the computer are not flashing.
Cause Solution
System unable to power on. Press and hold the power button for less than 4 seconds. If
the hard drive LED turns green, then:
1. Check that the voltage selector, located on the rear of
the power supply on some models, is set to the
appropriate voltage. Proper voltage setting depends on
your region.
2. Remove the expansion cards one at a time until the
5V_aux light on the system board turns on.
3. Replace the system board.
OR
Press and hold the power button for less than 4 seconds. If
the hard drive LED does not turn on green then:
1. Check that the unit is plugged into a working AC outlet.
2. Open hood and check that the power button harness is
properly connected to the system board.
3. Check that both power supply cables are properly
connected to the system board.
4. Check to see if the 5V_aux light on the system board is
turned on. If it is turned on, then replace the power
button harness.
5. If the 5V_aux light on the system board is off, then
replace the power supply.
6. Replace the system board.
118 Appendix D Troubleshooting Without Diagnostics
- Maintenance and Service Guide 1
- About This Book 3
- Table of contents 5
- Software 11
- Computer Setup—File 16
- Computer Setup—Storage 17
- Computer Setup—Security 19
- Computer Setup—Power 25
- Computer Setup—Advanced 26
- SATA Hard Drives 30
- SATA Hard Drive Cables 30
- SMART ATA Drives 31
- Hard Drive Capacities 31
- Chassis Designations 32
- Generating Static 33
- Grounding the Work Area 34
- Operating Guidelines 35
- Routine Care 36
- Service Considerations 37
- Power Supply Fan 38
- Cables and Connectors 38
- Hard Drives 39
- Lithium Coin Cell Battery 39
- 5 Illustrated parts catalog 40
- Spare parts 41
- Serial Number Location 49
- Preparation for Disassembly 50
- Computer Access Panel 51
- Front Bezel 52
- Bezel Blanks 53
- System Board Connections 54
- Installing Additional Memory 55
- Populating DIMM Sockets 56
- Installing DIMMs 57
- Cable Management 64
- Cable Connections 65
- Drive Positions 67
- Description Spare part number 81
- Baffle 636921-001 81
- Front Fan Assembly 82
- Hood Sensor 83
- Speaker 636925-001 85
- Heat sink 86
- Processor 88
- Power Supply 90
- P1 PWR (P1) 91
- P3 PWRCPU 91
- System Board 92
- Type 1 Battery Holder 95
- Type 2 Battery Holder 95
- Type 3 Battery Holder 96
- Orientation 97
- Installing a Security Lock 98
- Front Bezel Security 100
- A Connector Pin Assignments 102
- Ethernet RJ-45 103
- Microphone 104
- Headphone 104
- Line-in Audio 104
- Line-out Audio 104
- DVI Connector 105
- 4-Pin Power (for CPU) 106
- SATA Data and Power 107
- PCI Express 108
- B Power Cord Set Requirements 110
- Country-Specific Requirements 111
- C POST Error Messages 112
- Audible Codes 118
- Safety and Comfort 122
- Helpful Hints 123
- Solving General Problems 125
- Solving Power Problems 129
- Solving Diskette Problems 131
- Solving Hard Drive Problems 134
- Solving Display Problems 139
- Solving Audio Problems 144
- Solving Printer Problems 146
- Solving Network Problems 152
- Solving Memory Problems 155
- Solving Processor Problems 157
- Solving Software Problems 165
- Contacting Customer Support 166
- Resetting the Password Jumper 168
- Survey Tab 174
- Test Tab 175
- Status Tab 176
- History Tab 176
- Errors Tab 176
- Help Tab 177
- Protecting the Software 178
- H System Recovery 179
- System Recovery options 180
- Recovery media 182
- Creating recovery media 183
- I Specifications 184
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