diagnostics
panel.
This
information
and
the
information
in
can
often
provide
enough
information
to
correct
the
error.
3.
Remove
the
server
cover
and
look
inside
the
server
for
lit
LEDs.
Certain
components
inside
the
server
have
LEDs
that
will
be
lit
to
indicate
the
location
of
a
problem.
For
example,
a
VRM
error
will
light
the
LED
next
to
the
failing
VRM
on
the
microprocessor
tray.
The
following
illustration
shows
the
LEDs
and
connectors
on
the
microprocessor
tray.
Microprocessor 4
VRM connector
Microprocessor 3
VRM connector
Microprocessor card
error LED
Microprocessor 4 socket
Microprocessor 3 socket
Microprocessor 3 error LED
VRM 3 error LED
VRM 4 error LED
Microprocessor 4 error LED
Microprocessor 2
error LED
Microprocessor 1
error LED
Microprocessor 1
socket
Microprocessor 2
socket
Fan 4
Fan 8
Fan 3
Fan 7
Fan 6
Fan 2
Fan 5
Fan 1
Memory
card 1
Memory
card 2
Memory
card 3
Memory
card 4
Light path diagnostics
button
1
1
2
2
4
4
3
3
The
following
illustration
shows
the
LEDs
on
the
PCI-X
board.
PCI attention LEDs
PCI power LEDs
Power good LED
62
IBM
xSeries
366
Type
8863:
Problem
Determination
and
Service
Guide
Summary of Contents for xSeries 366
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