v
Follow
the
suggested
actions
in
the
order
in
which
they
are
listed
in
the
Action
column
until
the
problem
is
solved.
v
See
the
parts
listing
in
the
Problem
Determination
and
Service
Guide
to
determine
which
components
are
customer
replaceable
units
(CRU)
and
which
components
are
field
replaceable
units
(FRU).
v
If
an
action
step
is
preceded
by
“(Trained
service
technician
only),”
that
step
must
be
performed
only
by
a
trained
service
technician.
Lit
light
path
diagnostics
LED
with
the
system-error
LED
also
lit
Description
Action
FAN
A
fan
has
failed
or
has
been
removed.
Note:
A
failing
fan
can
also
cause
the
TEMP
LED
to
be
lit.
1.
Reinstall
the
removed
fan.
2.
If
an
individual
fan
LED
is
lit,
replace
the
fan.
3.
Reseat
the
microprocessor
tray.
4.
(Trained
service
technician
only)
Replace
the
microprocessor
tray.
PCI
BRD
The
PCI-X
board
has
failed.
1.
(Trained
service
technician
only)
Reseat
the
PCI-X
board
assembly.
2.
Run
diagnostic
program
3.
(Trained
service
technician
only)
Replace
the
PCI-X
board
assembly.
CPU
BRD
The
microprocessor
tray
has
failed.
1.
(Trained
service
technician
only)
Reseat
the
microprocessor
tray.
2.
Run
diagnostic
program
3.
(Trained
service
technician
only)
Replace
the
microprocessor
tray.
I/O
BRD
The
I/O
board
has
failed.
1.
Reseat
the
I/O
board.
2.
Replace
the
I/O
board.
58
IBM
System
x3800
Type
8865:
Installation
Guide
