Pilot Motherboard LED Indicators
The
Pilot motherboard and modules that are installed on the motherboard
contain several LEDs.
Table 45: Motherboard LED status and description
LED Description
DDR3 DIMM Fault
LED
Each of the 16 DDR3 DIMM slots on the motherboard has an
amber fault LED associated with it. If a DIMM is faulty
, pressing
the Fault Remind buon on the motherboard signals the service
processor to light the fault LEDs associated with the faulted
DIMMs.
Processor Fault LED The motherboard includes a fault status indicator (LED) next to
each of the two processor (CPU) sockets.
These LEDs indicate when a processor is faulty. For example, if
on reboot the BIOS detects that there are uncorrectable processor
errors recorded in the machine check architecture (MCA)
registers apparently left over from the previous boot, then the
BIOS records and diagnoses these errors.
If it is determined that a processor is faulty, pressing the Fault
Remind buon on the motherboard signals the service processor
to light the fault LED associated with the faulted processor.
Fault Remind
Power LED
This LED is located next to the Fault Remind buon 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 have failed and, as a result, none of the component
fault LEDs illuminate.
Standby Power
Good LED
The service instructions for all internal components require that
all AC power is removed from the power supplies before the top
cover of the Pilot is removed.
This green LED is labeled STBY PWRGD and is located on the
back of the Pilot near PCIe slot 2.
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 Pilot’s internal components while the AC power
cords are installed and power is being supplied to the Pilot.
Related Links
Oracle FS System LEDs
Oracle FS System LED Status
263
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