System Board Led Locations And Diagnostic Led Panel - IBM eserver xSeries 350 User Reference Manual

System board LED locations and diagnostic LED panel

The following illustration shows the location of the lights on the system board. You
might need to refer to this illustration when solving problems with the server.
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IBM® xSeries 350: User's Reference
PCI slot
power-on light
PCI slot
attention lights
Microprocessor 4 error
light
Post OK light
Microprocessor 3 error
light
Microprocessor 2 error
light
Microprocessor or
terminator card
present lights
Microprocessor 1 error
light