Troubleshooting Your System 81
Troubleshooting External Connections
Loose or improperly connected cables are the most likely source of problems for the system, monitor, and
other peripherals (such as a printer, keyboard, mouse, or other external device). Ensure that all external
cables are securely attached to the external connectors on your system. See Figure 1-1 for the front-panel
connectors and Figure 1-2 for the back-panel connectors on your system.
Troubleshooting the Video Subsystem
Problem
• Monitor is not working properly.
• Video memory is faulty.
Action
1
Check the system and power connections to the monitor.
2
Determine whether the system has monitors attached to both the front and rear video connectors.
The system supports only one monitor attached to either the front or rear video connector. When a
monitor is connected to the front panel, and the back-panel video connector is disabled.
If two monitors are attached to the system, disconnect one monitor. If the problem is not resolved,
continue to the next step.
3
Check the system and power connections to the monitor.
4
Run the appropriate online diagnostic test. See "Using Dell PowerEdge Diagnostics" on page 93.
If the tests run successfully, the problem is not related to video hardware.
If the tests fail, see "Getting Help" on page 103.
Troubleshooting the Keyboard
Problem
• System message indicates a problem with the keyboard.
• Keyboard is not functioning properly.
Action
1
Run the appropriate online diagnostic test. See "Using Dell PowerEdge Diagnostics" on page 93.
2
Press each key on the keyboard, and examine the keyboard and its cable for signs of damage.
3
Swap the faulty keyboard with a working keyboard.
If the problem is resolved, replace the faulty keyboard. See "Getting Help" on page 103.
If the problem is not resolved, see "Getting Help" on page 103.
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