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System-board LEDs
The following illustration shows the light-emitting diodes (LEDs) on the system
board.
1 PCI Express slot 2 error LED 9 Fan 4 error LED
2 PCI Express slot 1 error LED 10 Fan 1 error LED
3 SAS/SATA controller error LED 11 Fan 2 error LED
4 Baseboard management controller
heartbeat LED
12 Fan 3 error LED
5 Power good LED 13 DIMM 1 error LED
6 Standby power LED 14 DIMM 2 error LED
7 Voltage regulator error LED 15 DIMM 3 error LED
8 Fan 5 error LED 16 DIMM 4 error 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 17