IBM 7985 Problem Determination And Service Manual

v The server is restarted.v A new error occurs, causing the system-error LED to be lit again.Light path diagnostics LEDsThe following table describes the LEDs on the light path diagnostics panel andsuggested actions to correct the detected problems.Note: Check the system-error log and BMC log for additional information beforereplacing a FRU.LED Problem ActionNone, buttheSystemError LEDis litAn error has occurred and cannot bediagnosed, or the Advanced SystemManagement (ASM) processor on theRemote Supervisor Adapter II SlimLinehas failed. The error is not representedby a light path diagnostics LED.Check the system error log for information about the error.OVERSPECThe power supplies are using morepower than their maximum rating.Replace the failing power supply, or remove optional devicesfrom the server.PS 1 The power supply in bay 1 has failed. Make sure that the power supply is correctly seated. If theproblem remains, replace the failed power supply.PS 2 The power supply in bay 2 has failed. Make sure that the power supply is correctly seated. If theproblem remains, replace the failed power supply.CPU A microprocessor has failed. Make sure that the failing microprocessor, which is indicated bya lit LED on the system board, is installed correctly. See“Installing a microprocessor” on page 158 for information aboutinstalling a microprocessor.If the problem remains, replace the microprocessor (trainedservice technician only).VRM Not usedCNFG A hardware configuration error hasoccurred.Check the microprocessors just installed to be sure that theyare compatible with each other and with the VRM (see themicroprocessor section of the User’s Guide for compatiblityrequirements). Replace an incompatible microprocessor.Check the system-error logs for information about the error.Replace any components indicated.MEM When this LED is lit, a memory errorhas occurred.Replace the failing DIMM, which is indicated by the lit LED onthe system board.NMI A hardware error has been reported tothe operating system.Note: The PCI or MEM LED might alsobe lit.1. See the BMC log or the system-error log for the source ofthe fault.2. If the PCI LED is lit, follow the instructions for that LED.3. If the MEM LED is lit, follow the instructions for that LED.4. Restart the server.S ERR A PCI slot error has occurred. 1. See the BMC log or the system-error log.2. Replace the failing adapter.3. (Trained service technician) Replace the system board.52 IBM System x3655 Type 7985 and 7943: Problem Determination and Service Guide