DIMM Fault Status Indicators

Each of the 24 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. See Servicing 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. 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. 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.

STBY PWRGD LED lights to inform a service technician that the motherboard is receiving Standby power from at least one of the power supplies. This LED helps prevent service actions on the server internal components while the AC power cords are installed and power is being supplied to the server.