IBM 8668 - Eserver xSeries 232, Hardware Maintenance Manual

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DIMM 4 error LED
(CR15)
DIMM 3 error LED
(CR14)
DIMM 2 error LED
(CR17)
DIMM 1 error LED
(CR16)
Light path
diagnostics panel
Microprocessor 2
error LED (CR20)
Fan sink 1 LED
(CR78)
Fan sink 2 LED
(CR79)
Microprocessor 1
error LED (CR13)
VRM 2 error LED
(CR18)
VRM 1 error LED
(CR19)
Remind button
Integrated
system management
processor LED
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.
MEM
CPU
PCI A
PCI B
PCI C
VRM
DASD
SP
PS1
PS2
PS3
NON
OVER
NMI
TEMP
FAN
REMIND
Installing options
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