System-Board Leds; Bladecenter Gpu Expansion Unit Led - IBM 7870B4U Service Manual

System-board LEDs

Use this information to locate system-board LEDs in the blade server.
You must remove the blade server from the BladeCenter unit, open the cover or
remove any optional expansion units, and press the light path diagnostics switch
(see "System-board switches" on page 16) to light any error LEDs that were turned
on during processing. Diagnosing problems using the light path diagnostic LEDs is
described in "Light path diagnostics" on page 183.
The following illustration shows the light path diagnostics panel on the system
board.
The following illustration shows the LEDs on the system board.
DIMM 7-
error LED
DIMM 8-
error LED
DIMM 9-
error LED
DIMM 10-
error LED
DIMM 11-
error LED
DIMM 12-
error LED

BladeCenter GPU expansion unit LED

The following illustration identifies the fault LED on the front of the BladeCenter
GPU expansion (BGE) unit.
18
BladeCenter HS22 Type 7870, 1936, and 1911: Problem Determination and Service Guide
System board error LED
SYS BRD
NMI error LED
NMI
TEMP Over Temperature LED
MIS
Microprocessor
LP 1
mismatch LED
Light Path
diagnostic LED
Light Path
diagnostic switch
SAS 0-
error LED
Microprocessor 2- Battery-
error LED error LED
SAS 1-
Microprocessor 1-
error LED
error LED
Fault LED
DIMM 6-
error LED
DIMM 5-
error LED
DIMM 4-
error LED
DIMM 3-
error LED
DIMM 2-
error LED
DIMM 1-
error LED