Integrated System Management Processor Led; Light Path Diagnostic Panel - IBM eserver xSeries 232 8668 Hardware Maintenance Manual

VRM 1 error LED
(CR19)
Microprocessor 1
error LED (CR13)
Microprocessor 2
error LED (CR20)
VRM 2 error LED
(CR18)

Integrated System Management Processor LED

The xSeries 232 server has a Integrated System Management Processor on the
system board. This green LED flashes, indicating that the system temperature, fan
speeds, voltage ranges, power supplies, and power backplane are being monitored.
If an error occurs in any of these areas, the Integrated System Management
Processor turns on the respective error LED on the Light Path Diagnostics panel. If
the ISM LED remains on or off, an error has occurred.

Light Path Diagnostic Panel

The Light Path Diagnostics LEDs are described in the following table. For more
information, refer to "Diagnostic programs and error messages" on page 14.
DIMM 3 error LED
(CR14)
Fan sink 1 LED
(CR78)
Fan sink 2 LED
(CR79)
Light path
diagnostics panel
MEM PS1
CPU PS2
PCI A PS3
PCI B NON
PCI C OVER
VRM NMI
DASD TEMP
SP FAN
REMIND
DIMM 4 error LED
(CR15)
DIMM 2 error LED
(CR17)
Remind button
DIMM 1 error LED
(CR16)
Integrated
system management
processor LED
Installing options
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