Dell PowerEdge 1750 Guide de dépannage télécharger pdf (Page 34)

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2-4 for the back-
panel connectors on your system; see Figure2-2 for the front-panel connectors. 
Troubleshooting the Video Subsystem  
Problem 
l Monitor is not working properly. 
 
l 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, the back-
panel video and PS/2 keyboard and mouse connectors are 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 Server Administrator Diagnostics" in "Running System Diagnostics."  
 
If the tests run successfully, the problem is not related to video hardware. See "Finding Software Solutions." 
If the tests fail, see "Getting Help." 
Troubleshooting the Keyboard  
Problem 
l System message indicates a problem with the keyboard. 
 
l Keyboard is not functioning properly. 
 
Action 
1. Ensure that the keyboard is properly connected to the system.  
 
2. Run the appropriate online diagnostic test. See "Using Server Administrator Diagnostics" in "Running System Diagnostics."  
 
If the test fails, continue to the next step. 
3. Press each key on the keyboard, and examine the keyboard, cable, and cable connector for signs of damage, including bent pins.  
 
If the keyboard is not damaged, go to step5. 
If the keyboard is damaged, continue to the next step. 
4. Swap the faulty keyboard with a working keyboard.  
 
If the problem is resolved, replace the faulty keyboard. See "Getting Help." 
5. Run the keyboard test in the system diagnostics. See "Running the System Diagnostics."  
 
If the test fails, see "Getting Help." 
Troubleshooting the Mouse  
Problem 
l System message indicates a problem with the mouse. 
 
l Mouse is not functioning properly. 
 
Action 
1. Run the appropriate online diagnostic test. See "Using Server Administrator Diagnostics" in "Running System Diagnostics."  
 
If the test fails, continue to the next step. 
2. Examine the mouse and its cable for signs of damage.  
 
If the mouse is not damaged, go to step4. 
If the mouse is damaged, continue to the next step. 
3. Swap the faulty mouse with a working mouse.  
 
If the problem is resolved, replace the faulty mouse. See "Getting Help." 
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Dell PowerEdge 1750 Guide de dépannage Page 34

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