IBM 884015U Maintenance And Troubleshooting Manual

Contents

LED Problem ActionNone An error has occurred and cannot bediagnosed, or the ASM processor hasfailed. The error is not represented by alight path diagnostics LED.Check the system-error log and BMC log for information aboutthe error.OVERSPECThe power supplies are using morepower than their maximum rating.Replace the failing power supply, or remove optional devicesfrom the server.PS 1 When the LED is lit, the power supplyin bay 1 has failed. When the LEDflashes, an invalid power-supplyconfiguration has occurred.If the power supply has failed, replace the power supply. If aconfiguration error has occurred, make sure that the powersupply is installed correctly.PS 2 When the LED is lit, the power supplyin bay 2 has failed. When the LEDflashes, an invalid power-supplyconfiguration has occurred.If the power supply has failed, replace the power supply. If aconfiguration error has occurred, make sure that the powersupply is installed correctly.CPU When the LED is lit, a microprocessorhas failed. When the LED flashes, aninvalid microprocessor configuration hasoccurred.If a lit LED on the system board indicates a problem with amicroprocessor, make sure that the microprocessor is installedcorrectly. See the Option Installation Guide on the IBM xSeriesDocumentation CD for information about installing amicroprocessor.If the problem remains, replace the microprocessor.If a configuration error has occurred, make sure that themicroprocessors have the same cache size and type, and thesame clock speed. Microprocessor internal and external clockfrequencies must be identical.If the problem remains, replace the system board.VRM When the LED is lit, an error occurredon the microprocessor voltage regulatormodule (VRM). When the LED flashes,an invalid VRM configuration hasoccurred.Check the system board LEDs to determine which VRM hasfailed. If the option VRM has failed, replace the optional VRM. Ifthe VRM mounted on the system board has filed, replace thesystem board.If a configuration error has occurred, make sure that the VRM isinstalled correctly. If the problem remains, replace the VRM.CNFG When this LED is lit, the front systemerror LED will also be lit.Check the microprocessor options just installed to ensure theyare compatible with each other and change as needed.MEM 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 ReservedSP 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.84 xSeries 346 Types 8840 and 1880: Hardware Maintenance Manual and Troubleshooting Guide