System-Board Leds - IBM 84875MU User Manual

System-board LEDs

The following illustration shows the LEDs on the system board.
Microprocessor
fan error LED
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DIMM 3 error LED
DIMM 4 error LED
System fan 2
error LED
System fan 1
error LED
Standby power
LED
DIMM 2 error LED
DIMM 1 error LED