Diagnostic tools 65
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:
• Expansion boards ("Removing a non-hot-plug expansion board" on page 28, "Removing a PCI-X
Hot Plug expansion board" on page 47)
• Processors ("Removing a processor" on page 22), 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.
• PPMs ("Removing a PPM" on page 25), except the PPM installed in slot 1
• DIMMs ("Removing DIMMs" on page 59), except the first bank
• Hard drives ("Removing a hot-plug SCSI hard drive" on page 40, "Removing a hot-plug SAS
hard drive" on page 41)
• 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 ("Re-entering the server serial number and product ID" on page 34).
Expansion board-related port 85 codes
Expansion board-related port 85 codes display in the format 6xh.
IMPORTANT: Reboot the server after completing each numbered step. If the error condition continues,
proceed with the next step.
To troubleshoot expansion board-related error codes:
1. Reseat all expansion boards.
2. 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:
• Expansion boards ("Removing a non-hot-plug expansion board" on page 28, "Removing a PCI-X
Hot Plug expansion board" on page 47)
• Processors ("Removing a processor" on page 22), 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.
• PPMs ("Removing a PPM" on page 25), except the PPM installed in slot 1
• DIMMs ("Removing DIMMs" on page 59), except the first bank
• Hard drives ("Removing a hot-plug SCSI hard drive" on page 40, "Removing a hot-plug SAS
hard drive" on page 41)
• Peripheral devices
