System-Board Leds - IBM System x3400 Type 7975 Installation Manual

System-board LEDs

The following illustration shows the LEDs on the system board. You might have to
refer to this illustration when solving problems with the server.
Microprocessor
mismatch
LED
Use the system-board LEDs to diagnose system errors. An error LED is lit to
indicate a problem with a specific component. After a problem is corrected, the LED
will not be lit the next time that the server is restarted; if the problem remains, the
LED will be lit again. For additional information, see the Problem Determination and
Service Guide on the IBM System x3400 Documentation CD.
DIMM
error LEDs
1 through 12
Slot 1
error LED
Slot 2
error LED
Slot 3
error LED
Slot 4
error LED
Slot 5
error LED
Slot 6
error LED
DIMM LEDs
6 12
5 11
4 10
3 9
2 8
1 7
Microprocessor 1
error LED
Microprocessor 2
error LED
VRM error
LED
Battery LED
BMC heartbeat
LED
ServeRAID
error LED
Chapter 5. Solving problems
91