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Serial-device problems

Use this information to solve serial-device problems.

Table 1. Symptoms and user actions for serial device problems.

Table with one spanned column at the top and two other columns with headers that provides information about symptoms and user actions to solve serial device 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, System x3850 X6 and x3950 X6 Type 6241 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.
SymptomAction
The operating system can not identify the serial port.
  1. Make sure that each port is assigned a unique address in the Setup utility and none of the serial ports is disabled.
  2. Replace the I/O book.
A serial device does not work.
  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:
    1. Failing serial device
    2. Serial cable
  3. Replace the components listed in step 2 one at a time, in the order shown, restarting the server each time.
  4. Replace the standard I/O book.