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-event log and the IMM event log for additional informationbefore you replace a FRU.LED Problem ActionNone, butthesystem-error LEDis lit.An error has occurred and cannot bediagnosed, or the IMM has failed. Theerror is not represented by a light pathdiagnostics LED.Use the Setup utility to check the system-event log forinformation about the error.BRD An error has occurred on the systemboard.1. Check the LEDs on the system board to identify thecomponent that is causing the error. The BRD LED can belit for the following conditions:v Batteryv Missing PCI riser-card assemblyv Failed voltage regulator2. Check the system-event log for information about the error.3. Replace any failed or missing replaceable components,such as the battery (see “Removing the battery” on page229 for more information) or PCI riser-card assembly (see“Removing a PCI riser-card assembly” on page 188 formore information).4. If a voltage regulator has failed, replace the system board.CNFG A hardware configuration error hasoccurred. (This LED is used with theMEM and CPU LEDs.)1. If the CNFG LED and the CPU LED are lit, complete thefollowing steps:a. Check the microprocessors that were just installed tomake sure that they are compatible with each other(see “Installing a microprocessor and heat sink” onpage 240 for additional information aboutmicroprocessor requirements).b. (Trained service technician only) Replace theincompatible microprocessor.c. Check the system-error logs for information about theerror. Replace any components that are identified in theerror log.2. If the CNFG LED and the MEM LED are lit, complete thefollowing steps:a. Check the system-event log in the Setup utility or IMMerror messages. Follow steps indicated in “POST errorcodes” on page 28 and “Integrated managementmodule error messages” on page 114.Chapter 3. Diagnostics 65
