Serial Port Problems - Lenovo ThinkServer TD200x Hardware Maintenance Manual
Hardware maintenance manual for td200x
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Also See for ThinkServer TD200x:
- Hardware maintenance manual (304 pages) ,
- Installation and user manual (246 pages) ,
- Installations- und benutzerhandbuch (246 pages)
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• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• See Parts Listing, TD200x Machine Types 3719, 3821, 3822, and 3823 to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
• If an action step is preceded by "(Trained service technician only)," that step must be performed only by
a trained service technician.
Symptom
The server unexpectedly shuts
down, and the LEDs on the
operator information panel are
not lit.
Serial port problems
• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• See Parts Listing, TD200x Machine Types 3719, 3821, 3822, and 3823 to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
• If an action step is preceded by "(Trained service technician only)," that step must be performed only by
a trained service technician.
Symptom
The number of serial ports that
are identified by the operating
system is less than the number
of installed serial ports.
A serial device does not work.
66
ThinkServer TD200x Hardware Maintenance Manual
Action
See Solving undetermined problems.
Action
1. Make sure that:
• Each port is assigned a unique address in the Setup utility and none of the
serial ports is disabled.
• The serial port adapter (if one is present) is seated correctly.
2. Reseat the serial port adapter.
3. Replace the serial port adapter.
1. Make sure that:
• The device is compatible with the server.
• The serial port is enabled and is assigned a unique address.
• The device is connected to the correct connector.
2. Reseat the following components:
a. Failing serial device
b. Serial cable
3. Replace the following components one at a time, in the order shown, restarting
the server each time:
a. Failing serial device
b. Serial cable
c. (Trained service technician only) System board
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