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System-board LEDs
The following illustration shows the LEDs on the system board.
Heatsink
Orientation
DIMMs
DIMMs
1
Fan 5 error LED
9
PCI Express slot 2 error LED
2
Fan 4 error LED
10
PCI Express slot 1 error LED
3
H8 Heartbeat LED
11
Microprocessor error LED
4
Fan 3 error LED
12
Battery error LED
5
Fan 2 error LED
13
Standby power LED
6
Fan 1 error LED
14
System board error LED
7
SAS/SATA Controller LED
15
DIMM 1-6 error LEDs
8
IMM heart beat LED
Table 7. 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 IMM is functioning normally.
Standby power LED
When this LED is lit, it indicates that the server is connected to ac power.
The following table describes the LEDs on the system board and extender card and suggested actions to
correct the detected problems.
Chapter 5. Locating Server Controls and connectors
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