LED Problem ActionMEM When the LED is on, a memory errorhas occurred. When the LED flashes,an invalid DIMM configuration hasoccurred.Replace the failing DIMM, which is indicated by the lit LED onthe system board. If a configuration error has occurred, makesure the DIMMs are installed correctly.NMI A machine check error has occurred. Check the system-error log and BMC log for information aboutthe error.S ERR A soft error has occurred. Check the system-error log and BMC log for information aboutthe error.SP The service processor has failed. Remove ac power from the server; then, reconnect the serverto ac power and restart the server.If the problem remains, replace the system board.DASD A hard disk drive error has occurred. Check the LEDs on the hard disk drives and replace theindicated drive.RAID A RAID controller error has occurred. Check the system-error log and BMC log for information aboutthe error. See the documentation that comes with the RAIDcontroller.FAN When the LED is lit, a fan has failed oris operating too slowly. A failing fan canalso cause the TEMP LED to be lit.When the LED flashes, an invalid fanconfiguration has occurred.Replace the failing fan, which is indicated by the lit LED. If aconfiguration error has occurred, make sure that the fans areinstalled correctly.TEMP The system temperature has exceededa threshold level.v Determine whether a fan has failed. If it has, replace it.v Make sure that the room temperature is not too high. See theUser’s Guide on the IBM xSeries Documentation CD fortemperature information.v Make sure that the air vents are not blocked.BRD An error has occurred on the systemboard.v Check the LEDs on the system board to identify thecomponent that is causing the error.v Check the system-error log and BMC log for informationabout the error.PCI APCI BPCI CAn error has occurred on a PCI bus. v Check the system-error log and BMC log for informationabout the error.v If you cannot isolate the failing adapter through theinformation in the system error log or BMC log, remove oneadapter at a time from the failing PCI bus, and restart theserver after each adapter is removed.If the problem remains, replace the system board.84 xSeries 346 Types 8840 and 1880: Hardware Maintenance Manual and Troubleshooting Guide
