System-board LEDs
The following illustration shows the light-emitting diodes (LEDs) on the system
board.
Voltage
regulator
error LED
Standby
power
LED
DIMM 4
error LED
DIMM 3
error LED
DIMM 2
error LED
DIMM 1
error LED
Fan 3
error LED
Fan 4 error LED
Fan 2
error LED
Fan 5 error LED
Fan 1
error LED
Baseboard
management
controller
heartbeat
LED
Table 3. System-board LEDs
LED Description
Error LEDs When one of these LEDs is lit, it indicates that the associated
component has failed.
Baseboard management
controller heartbeat LED
This LED flashes to indicate that the mini-BMC is functioning
normally.
Standby power LED When this LED is lit, it indicates that the server is connected
to ac power.
Chapter 2. Installing optional devices 15
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