Error messages 124
IMPORTANT: Processor socket 1 and PPM slot 1 must be populated at all times or the server will not
function properly.
• PPMs, except the PPM installed in slot 1
• DIMMS, except the first bank from one memory board
• Hard drives
• Peripheral devices
2. Install each remaining system component, rebooting between each installation to isolate any failed
components.
3. Clear the system NVRAM.
4. 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 52).