Diagnostic tools 87
– PPMs ("Removing a PPM" on page 29), except the PPM installed in slot
1
– DIMMS ("Removing DIMMs" on page 76
), except the first bank from
one memory board
– Hard drives ("Removing a hot-plug SCSI hard drive" on page 50
)
– Peripheral devices
3. Reseat the remaining memory boards, rebooting after each installation to
isolate any failed memory boards.
4. Replace the DIMMs with a remaining bank of memory.
5. Replace the memory board.
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 41
).
Expansion board-related port 85 codes
Expansion board-related port 85 codes display on the media board 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
33
, "Removing a PCI-X Hot Plug expansion board" on page 57)
– Processors ("Removing a processor" on page 26
), except the processor
installed in socket 1
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