Light path diagnostics LEDs

Use this information to diagnose and resolve possible errors displayed by the light path diagnostic LEDs.

The following table describes the LEDs on the light path diagnostics panels, on the system board, and on the optional expansion unit and suggested actions to correct the detected problems.

Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. See Parts listing, Types 8014, 8028 and 1916 to determine which components are CRUs and which components are FRUs. If an action step is preceded by "(Trained service technician only)," that step must be performed only by a trained service technician.
Lit light path diagnostics LED	Description	Action
None	An error has occurred and cannot be isolated, or the service processor has failed.	Make sure that the light path diagnostics LED is lit, to ensure that there is enough power in the blade server to light the rest of the LEDs. See Viewing the light path diagnostics LEDs. Check the BMC log for information about an error that is not represented by a light path diagnostics LED. See Using the Configuration/Setup Utility program.
DIMM x error	A memory error occurred.	Make sure that the DIMM that is indicated by the lit LED is supported. See Viewing the light path diagnostics LEDs. Reseat the DIMM that is indicated by the lit LED. See Removing a memory module and Installing a memory module. Replace the DIMM that is indicated by the lit LED. See Removing a memory module and Installing a memory module. Note: Multiple DIMM LEDs do not necessarily indicate multiple DIMM failures. If more than one DIMM LED is lit, reseat or replace one DIMM at a time until the error is corrected.
LP1	LP1 LED on system board: system-board assembly light path diagnostic LEDs have power. LP1 LED on optional expansion unit: check light path LEDs on the system board.	Check for error LEDs that are lit on the system-board assembly. See Viewing the light path diagnostics LEDs.
LP2 (optional expansion unit only)	Light path diagnostic LEDs on the optional expansion unit have power.	Check for error LEDs that are lit on the optional expansion unit. See Viewing the light path diagnostics LEDs.
Microprocessor error	The microprocessor has failed or overheated, or the start microprocessor is missing.	Check the advanced management module (AMM) log for more information. See Using the Configuration/Setup Utility program. If the log shows that a microprocessor is disabled or that a microprocessor IERR has occurred, perform one of the following actions: (Trained service technician only) Reseat the microprocessor that is indicated by the lit LED. See Removing a microprocessor and heat sink and Installing a microprocessor and heat sink. (Trained service technician only) Replace the microprocessor that is indicated by the lit LED. See Removing a microprocessor and heat sink and Installing a microprocessor and heat sink.
NMI (NMI error)	The system board has failed.	Replace the blade server cover, reinsert the blade server in the BladeCenter unit, and then restart the blade server. Check the BMC log for information about the error. See Using the Configuration/Setup Utility program. (Trained service technician only) Replace the system-board assembly - See Removing the system-board assembly and Installing the system-board assembly.
S BRD (System board error)	The system board has failed	(Trained service technician only) Replace the system-board assembly - See Removing the system-board assembly and Installing the system-board assembly.
TEMP (Over temperature error)	The system temperature has exceeded a threshold level.	Check the function of the shared BladeCenter unit resources. See Solving shared BladeCenter resource problems. Make sure that the room temperature is not too high. See Features and specifications for temperature information.
SAS storage drive error	A storage drive has failed.	Run the SAS Attached Disk diagnostic test. If the drives passes diagnostics but continues to have a problem, replace the storage drive with a new one. See Dynamic system analysis diagnostic programs and messages.