Motherboard Status Indicators

The motherboard contains the following status indicators (LEDs).

Status Indicator	Description
DIMM Fault Status Indicators	Each of the 32 DIMM slots on the motherboard has an amber fault status indicator (LED) associated with it. If Oracle ILOM determines that a DIMM is faulty, pressing the Fault Remind button on the motherboard I/O card signals the service processor to light the fault LED associated with the failed DIMM. For more information on DIMM fault status indicators and the location of the Fault Remind button, see Servicing the DIMMs.
Processor Fault Status Indicators	The motherboard includes a fault status indicator (LED) adjacent to each of the two processor sockets. These LEDs indicate when a processor fails. Pressing the Fault Remind button on the motherboard I/O card signals the service processor to light the fault status indicators associated with the failed processors. For more information on processor fault status indicators and the location of the Fault Remind button, see Servicing Processors.
Fault Remind Status Indicator	This status indicator (LED) is located next to the Fault Remind button and is powered from the super capacitor that powers the fault LEDs on the motherboard. This LED lights to indicate that the fault remind circuitry is working properly in cases where no components failed and, as a result, none of the component fault LEDs illuminate. For more information on the fault remind status indicator and the location of the Fault Remind button, see Using the Server Fault Remind Button.
STBY PWRGD Status Indicator	This green status indicator (LED) is labeled STBY PWRGD and is located on the motherboard near the back of the server. This LED lights to inform a service technician that the motherboard is receiving Standby power from at least one of the power supplies. This LED is provided to help prevent service actions on the server internal components while the AC power cords are installed and power is being supplied to the server.