142 Troubleshooting Your System
Action
1
Enter the System Setup program and ensure that the serial port is enabled,
and the serial port/COM ports are configured appropriately for any
applications you are using. See "Using the System Setup Program" on
page 47.
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 "Using Server
Administrator Diagnostics" on page 161.
If the tests run successfully but the problem persists, see "Troubleshooting
a Serial I/O Device" on page 142.
Troubleshooting a Serial I/O Device
Problem
• 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.
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 "Getting Help" on page 175.
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