HP ProLiant Gen9 Troubleshooting Manual page 60

269- IMPORTANT: Default configuration settings have been restored per user request
...If Secure Boot was enabled, related security settings may have been lost.
Action: Restore any desired configuration settings.
270- iLO FW Communication Issue – Unable to communicate with iLO FW
...Certain management functionality is not available.
Action: Remove power. If issue persists, update iLO FW. If issue still persists, contact HP service.
271- Processor X, DIMM Y could not be authenticated as genuine HP SmartMemory
Enhanced and extended HP SmartMemory features will not be active.
275- Unsupported Processor Detected - Processor stepping not supported
...System halted.
Action: If available, update the System ROM to a version supporting this stepping through iLO's out-of-band
FW update interface.
276- Option Card Configuration Error
...One or more option cards are requesting more memory mapped I/O than is available.
...System halted.
Action: Remove one or more option cards to allow the system to boot.
277- Secure Boot Authentication Failure
...One or more UEFI drivers or applications failed authentication and was not executed.
Action: Confirm the system has FW/SW that supports Secure Boot and has not been compromised.
278- Secure Boot Authentication Failure
...One or more UEFI drivers or applications was not authorized due to revoked certificate(s) and was not executed.
Action: Update the SW/FW to a revision with a valid certificate.
281- IMPORTANT: SW12 is ON indicating physical presence
...This switch should only be ON to override certain security protections.
Action: Power down the server and set SW12 to OFF if physical presence is not required.
282- Invalid Server Serial Number and Product ID
...The Serial Number and/or Product ID have been corrupted or lost.
Action: Enter the correct values for these fields in Platform Configuration (RBSU).
283- Memory Address/Command Parity Error Detected – Processor X, Channel Y
Action: Reseat the DIMMs. If the issue persists, contact HP service.
HP ProLiant server errors 60