LED name Description
Error LEDs When an error LED is lit, it indicates that the associated
component has failed.
RTMM heartbeat LED Power-on and power-off sequencing.
IMM 2 heartbeat LED Indicates the status of the boot process of the IMM2.
When the server is connected to power this LED flashes quickly
to indicate that the IMM2 code is loading. When the loading is
complete, the LED stops flashing briefly and then flashes slowly
to indicate that the IMM2 if fully operational and you can press
the power-control button to start the server.
Standby power LED When this LED is flashing, it indicates that the server is
connected to an ac power source.
When this LED is lit, it indicates that the server is dc power on.
System board error LED System-board has failed.
Microprocessor
mismatch LED
When this LED is lit, it indicates that microprocessor 1 is not
installed, or the microprocessors do not have the same cache
size and type, and clock speed.
DIMM error LEDs A memory DIMM has failed or is incorrectly installed.
Microprocessor error
LED
Microprocessor has failed, is missing, or has been incorrectly
installed.
Light path LED Indicates whether or not the lightpath button is functional. If the
light path LED is lit after pressing the lightpath button, it
indicates that the lightpath button is functioning properly. By
contrast, if the lightpath LED is not lit when pressing the light
path button, it means the lightpath button is not functioning
properly.
Figure 73. System board LEDs
Chapter 4. Troubleshooting 123
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