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Solving Display Problems
If you encounter display problems, see the documentation that came with the monitor and to the
common causes and solutions listed in the following table.
Table C-5 Solving Display Problems
Blank screen (no video).
Cause Solution
Monitor is not turned on and the monitor light is not on. Turn on the monitor and check that the monitor light is on.
Bad monitor. Try a different monitor.
The cable connections are not correct. Check the cable connection from the monitor to the computer
and to the electrical outlet.
You may have a screen blanking utility installed or energy
saver features are enabled.
Press any key or click the mouse button and, if set, type your
password.
System ROM is corrupted; system is running in Boot Block
Emergency Recovery Mode (indicated by eight beeps).
Reflash the system ROM with the latest BIOS image.
You are using a fixed-sync monitor and it will not sync at the
resolution chosen.
Be sure that the monitor can accept the same horizontal
scan rate as the resolution chosen.
Computer is in standby mode. Press the power button to resume from standby mode.
CAUTION: When attempting to resume from standby
mode, do not hold down the power button for more than four
seconds. Otherwise, the computer will shut down and you
will lose any unsaved data.
Monitor cable is plugged into the wrong connector. If the computer system has both an integrated graphics
connector and an add-in graphics card connector, plug the
monitor cable into the graphics card connector on the back of
the computer.
Monitor settings in the computer are not compatible with the
monitor.
1. In Windows XP Control Panel, double-click the Display
icon and select the Settings tab.
In Windows Vista Control Panel, under Appearance
and Personalization, select Adjust screen
resolution.
In Windows 7, right click in an empty space on the
desktop and select Screen Resolution.
2. Reset the resolution.
Monitor is configured to use an input that is not active. Use the monitor's on-screen menu controls to select the
input that is being driven by the system. Refer to the
monitor's user documentation for more information on the on-
screen controls and settings.
110 Appendix C Troubleshooting Without Diagnostics
- Maintenance and Service Guide 1
- About This Book 3
- Table of contents 5
- 1 Product Features 9
- Front Panel Components 10
- Rear Panel Components 11
- Serial Number Location 12
- Software 13
- Computer Setup—File 18
- Computer Setup—Storage 19
- Computer Setup—Security 20
- Computer Setup—Power 22
- Computer Setup—Advanced 23
- SATA Hard Drives 25
- SATA Hard Drive Cables 25
- SMART ATA Drives 26
- Hard Drive Capacities 26
- Chassis Designations 27
- Generating Static 28
- Grounding the Work Area 29
- Operating Guidelines 30
- Routine Care 31
- Service Considerations 32
- Cables and Connectors 33
- Hard Drives 33
- Lithium Coin Cell Battery 34
- 6 Illustrated parts catalog 35
- Spare parts 29 37
- Spare parts 31 39
- Spare parts 33 41
- Spare parts 35 43
- Preparation for Disassembly 45
- Computer Access Panel 47
- Front Bezel 48
- Bezel Blanks 49
- System Board Connections 50
- Installing Additional Memory 51
- Populating DIMM Sockets 52
- Installing DIMMs 52
- Cable Management 61
- Drive Positions 63
- Description Spare part number 77
- Baffle 636921-001 77
- Front Fan Assembly 78
- Speaker 636925-001 80
- Heat sink 81
- Processor 84
- Power Supply 86
- P2 PWRCMD 87
- P3 PWRCPU 87
- System Board 88
- Type 1 Battery Holder 91
- Type 2 Battery Holder 91
- Type 3 Battery Holder 92
- Orientation 93
- Installing a Security Lock 94
- Installing a Security Lock 87 95
- Front Bezel Security 96
- A Power Cord Set Requirements 98
- Country-Specific Requirements 99
- B POST Error Messages 100
- Audible Codes 102
- Safety and Comfort 104
- Helpful Hints 105
- Solving General Problems 107
- Solving General Problems 101 109
- Solving Power Problems 111
- Solving Hard Drive Problems 113
- Solving Display Problems 118
- Solving Display Problems 111 119
- Solving Display Problems 113 121
- Solving Audio Problems 123
- Solving Printer Problems 125
- Solving Network Problems 131
- Solving Network Problems 125 133
- Solving Memory Problems 134
- Solving Memory Problems 127 135
- Solving Processor Problems 136
- Cause Solution 142
- Solving Software Problems 144
- Resetting the Password Jumper 146
- F System Recovery 151
- System Recovery options 152
- Recovery media 154
- G Specifications 156
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