System-Board Leds - IBM LS20 - BladeCenter - 8850 Service Manual

System-board LEDs

The following illustration shows the LEDs on the system board. You have to remove
the blade server from the BladeCenter unit, open the cover, and press the light path
diagnostics switch to light any error LEDs that were turned on during processing.
SCSI 1 error
LED (CR53)
(future use)
The following illustration shows the light path diagnostics panel on the system
board.
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AMD Opteron LS20 Type 8850 for IBM BladeCenter: Problem Determination and Service Guide
SCSI 0 error
LED (CR51)
(future use)
NMI
NMI error LED
MIS
Microprocessor mismatch error LED
SBRD
System-board error LED
TEMP
Over temperature error LED
Light path diagnostics LED
Light path diagnostics switch
BMC error LED (CR47)
(future use)
Light path diagnostics panel
Microprocessor 1 error
LED (CR54)
Microprocessor 2 error
LED (CR50)
DIMM 3 error LED (CR46)
DIMM 4 error LED (CR49)
DIMM 1 error LED (CR52)
DIMM 2 error LED (CR48)