TroubleshootingEvent messagesUEFI diagnostic codes580A5On this page580A5 : [580A5] Mirror Fail-over complete. DIMM number % has failed over to to the mirrored copy.[580A5] Mirror Fail-over complete. DIMM number % has failed over to to the mirrored copy.DIMM Mirror Fail-over DetectedSeverityInfoUser ResponseComplete the following steps: Check the system-event log for uncorrected DIMM failures and replace those DIMMRelated LinksRemoving a DIMMInstalling a DIMMGive documentation feedback