System-board LEDs
The following illustration shows the light-emitting diodes (LEDs) on the system
board.
DIMM 1 error LED
Riser-card-missing
error LED
RAID error LED
DIMM 2 error LED
DIMM 3 error LED
DIMM 4 error LED
DIMM 5 error LED
DIMM 6 error LED
DIMM 7 error LED
DIMM 8 error LED
DIMM 9 error LED
DIMM 12 error LED
DIMM 11 error LED
DIMM 10 error LED
VRM
error LED
Power channel B
error LED
Power channel A
error LED
Power channel D
error LED
Power channel C
error LED
BMC heartbeat LED
3 v battery
error LED
PCI slot 3
error LED
PCI slot 4
error LED
Remote Supervisor
Adapter II SlimLine
error LED
Microprocessor 1
error LED
Microprocessor 2
error LED
Table 3. System-board LEDs
LED Description
Error LEDs The associated component has failed.
BMC heartbeat LED This LED flashes to indicate that the BMC (baseboard
management controller) is functioning normally.
12-volt power (A, B, C, D)
LEDs
If any of these LEDs is lit, there is a failure in the associated
system board power channel (see “Power problems” on page
45).
Chapter 1. Introduction 15
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