Serial Port Problems; Software Problems - Lenovo ThinkServer RD240 Hardware Maintenance Manual

• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• See the parts listing in Chapter 8 "Parts listing, RD240 Types 1045, 1046, 1047, and 1048" on page 93 to
determine which components are customer replaceable units (CRUs) and which components are field
replaceable units (FRUs).
• If an action step is preceded by "(Trained service technician only)," that step must be performed only by
a trained service technician.
Symptom
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 the parts listing in Chapter 8 "Parts listing, RD240 Types 1045, 1046, 1047, and 1048" on page 93 to
determine which components are customer replaceable units (CRUs) and which components are field
replaceable units (FRUs).
• 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.

Software problems

• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• See the parts listing in Chapter 8 "Parts listing, RD240 Types 1045, 1046, 1047, and 1048" on page 93 to
determine which components are customer replaceable units (CRUs) and which components are field
replaceable units (FRUs).
Action
Action
1. Make sure that:
• Each port is assigned a unique address in the Setup Utility program 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
21
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Chapter 5 Diagnostics