Troubleshooting Basic I/O Functions; Troubleshooting A Serial I/O Device - Dell PowerEdge 850 Installation And Troubleshooting Manual

1. Run the appropriate online diagnostic test. See
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
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.
4. If the mouse is a USB mouse, enter the System Setup program and ensure that the USB ports are enabled. See "Using the System Setup Program" in
your User's Guide.
5. If the problem is not resolved, see
Troubleshooting Basic I/O Functions
Problem
Error message indicates a problem with the serial port.
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Device connected to the serial port is not operating properly.
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Action
1. Enter the System Setup program and ensure that the serial port is enabled, and that console redirection is disabled. See "Using the System Setup
Program" in your 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
If the tests run successfully but the problem persists, see the appropriate
USB Parallel Printer."

Troubleshooting a Serial I/O Device

Problem
Device connected to the serial port is not operating properly.
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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.
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.
If the problem persists, see
"Using Server Administrator
step 5.
"Getting Help."
"Using Server Administrator
"Getting Help."
Diagnostics" in "Running System Diagnostics."
Diagnostics" in "Running System Diagnostics."
procedure—"Troubleshooting a Serial I/O Device" or "Troubleshooting a Non-