ProLiant ML570 Generation 4 Server Maintenance and Service Guide

Diagnostic tools 73
Port 85 code Description
4xh Port 85 codes in this format indicate memory-related errors. See "Memory-related
port 85 codes (on page 74)" for more information.
6xh Port 85 codes in this format indicate expansion board-related errors. See
"Expansion board-related port 85 codes (on page 74)" 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 75)" 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 (on page 40)
o Processors ("Processor" on page 54), 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 ("PPM" on page 58), except the PPM installed in slot 1
o DIMMs ("Removing and installing a memory board (hot-plug)" on page 47, "Removing and
installing a memory board (non-hot-plug)" on page 50), except the first bank
o Hard drives ("Hot-plug hard drives" on page 36)
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.
5. Replace the processor board, if applicable.
6. Replace the system board.
IMPORTANT: If replacing the system board or clearing NVRAM, you must re-enter the server
serial number through RBSU.