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Troubleshooting the system using port 85 codes

  1. Locate the port 85 code display.

    IMPORTANT: Be sure the port 84/85 switch is set to display port 85 codes.

  2. Locate the code in the following table.

    For example, if the port 85 code displays "31h," see "Processor-related port 85 codes" for more information.

    Port 85 code

    Description

    3xh

    Port 85 codes in this format indicate processor-related errors. See "Processor-related port 85 codes" for more information.

    4xh

    Port 85 codes in this format indicate memory-related errors. See "Memory-related port 85 codes" for more information.

    6xh

    Port 85 codes in this format indicate expansion board-related errors. See "Expansion board-related port 85 codes" for more information.

    All other codes, including 00h, 01h, and 5xh

    Port 85 codes in this range cover several areas. See the section "Miscellaneous port 85 codes" for more information.
  3. Reference the designated section in this guide for the appropriate troubleshooting steps.