Error messages 166
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 (on page
166)" for more information.
Port 85 code Description
3xh
Port 85 codes in this format indicate processor-related errors. See "Processor-
related port 85 codes (on page 166)" for more information.
4xh
Port 85 codes in this format indicate memory-related errors. See "Memory-related
port 85 codes (on page 167)" for more information.
6xh
Port 85 codes in this format indicate expansion board-related errors. See
"Expansion board-related port 85 codes (on page 167)" 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 (on page 168)" for more information.
3. Reference the designated section in this guide for the appropriate troubleshooting steps.
Processor-related port 85 codes
Processor-related port 85 codes display in the format 3xh.
IMPORTANT: Reboot the server after completing each numbered step. If the error condition
continues, proceed with the next step.
To troubleshoot processor-related error codes:
1. Bring the server to base configuration by removing all components that are not required by the
server to complete POST. This process can include removing all:
o Expansion boards
o Processors, except the processor installed in socket 1
IMPORTANT: Processor socket 1 and PPM slot 1 must be populated at all times or the server
does not function properly.
o PPMs, except the PPM installed in slot 1
o DIMMs, except the first bank
o Hard drives
o Peripheral devices
2. Reseat the processor in socket 1.
3. Reseat the remaining processors, rebooting after each installation to identify any failed processors.
IMPORTANT: Populate the processors in the following order: 1, 2, 4, 3.
IMPORTANT: Always install a PPM when you install a processor. The system fails to boot if
the PPM is missing.
4. Replace the processor in socket 1.
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