Dell PowerEdge 1750 Troubleshooting Guide download pdf (Page 35)

4. Enter the System Setup program and ensure that the mouse controller is enabled. See "Using the System Setup Program" in your User's Guide.  
 
If the problem is not resolved, continue to the next step. 
5. Run the pointing devices test in the system diagnostics. See "Running the System Diagnostics."  
 
If the test fails, see "Getting Help." 
Troubleshooting Basic I/O Functions  
Problem 
l Error message indicates a problem with a serial port. 
 
l Device connected to a serial port is not operating properly. 
 
Action 
1. Enter the System Setup program and ensure that the serial port(s) are enabled. See "Using the System Setup Program" in the User's Guide.  
 
2. If the problem is confined to a particular application, see the application documentation for specific port configuration requirements that the program 
may require.  
 
3. Run the appropriate online diagnostic test. See "Running the System Diagnostics" in "Running System Diagnostics."  
 
If the tests run successfully but the problem persists, see "Troubleshooting a Serial I/O Device." 
Troubleshooting a Serial I/O Device  
Problem 
l Device connected to the serial port is not operating properly. 
 
Action 
1. Turn off the system and any peripheral devices connected to the serial port.  
 
2. Swap the serial interface cable with a working cable, and turn on the system and the serial device.  
 
If the problem is resolved, replace the interface cable. See "Getting Help." 
3. Turn off the system and the serial device, and swap the device with a comparable device.  
 
4. Turn on the system and the serial device.  
 
If the problem is resolved, replace the serial device. See "Getting Help." 
If the problem persists, see "Getting Help." 
Troubleshooting a USB Device  
Problem 
l System message indicates a problem with a USB device. 
 
l Device connected to a USB port is not operating properly. 
 
Action 
1. Enter the System Setup program, and ensure that the USB ports are enabled. See "Using the System Setup Program" in your User's Guide.  
 
2. Turn off the system and any USB devices.  
 
3. Disconnect the USB devices, and connect the malfunctioning device to the other USB connector.  
 
4. Turn on the system and the reconnected device.  
 
If the problem is resolved, the USB connector might be defective. See "Getting Help." 
5. If possible, swap the interface cable with a working cable.  
 
If the problem is resolved, replace the interface cable. See "Getting Help." 
6. Turn off the system and the USB device, and swap the device with a comparable device.  
 
7. Turn on the system and the USB device.  
 
If the problem is resolved, replace the USB device. See "Getting Help." 
If the problem persists, see "Getting Help." 
Troubleshooting an Integrated NIC  
Problem 
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Dell PowerEdge 1750 Troubleshooting Guide Page 35

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