IBM 8874 Installation Guide - Page 90

system-error

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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 CPU A microprocessor has failed, is missing, or has been improperly installed. Note: Make sure that the microprocessors are installed in the correct sequence; see "Installing an additional microprocessor" on page 15. 1. Check the BMC log or the system-error log to determine the reason for the lit LED. 2. Find the failing, missing, or mismatched microprocessor by checking the LEDs on the microprocessor tray. 3. Reseat the following components: a. (Trained service technician only) Failing microprocessor b. Microprocessor tray 4. Replace the following components one at a time, in the order shown, restarting the server each time: a. (Trained service technician only) Failing microprocessor b. (Trained service technician only) Microprocessor tray VRM A dc-dc regulator has failed or is missing. 1. Check the BMC log or the system-error log to determine the reason for the lit LED (for a VRM). 2. Find the failing or missing VRM by checking the LEDs on the microprocessor tray. 3. Install any missing VRMs. 4. Reseat the following components: a. Failing VRM b. (Trained service technician only) Microprocessor associated with the VRM c. Microprocessor tray 5. Replace the following components one at a time, in the order shown, restarting the server each time: a. Failing VRM b. (Trained service technician only) Microprocessor associated with the VRM c. (Trained service technician only) Microprocessor tray LOG Information is present in the BMC 1. Save the log if necessary and clear. log and system-error log. One or both logs might be full or almost full. 2. Check the log for possible errors. 78 IBM xSeries 460 Type 8872 and xSeries MXE 460 Type 8874: Installation Guide ERserver

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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
CPU
A
microprocessor
has
failed,
is
missing,
or
has
been
improperly
installed.
Note:
Make
sure
that
the
microprocessors
are
installed
in
the
correct
sequence;
see
“Installing
an
additional
microprocessor”
on
page
15.
1.
Check
the
BMC
log
or
the
system-error
log
to
determine
the
reason
for
the
lit
LED.
2.
Find
the
failing,
missing,
or
mismatched
microprocessor
by
checking
the
LEDs
on
the
microprocessor
tray.
3.
Reseat
the
following
components:
a.
(Trained
service
technician
only)
Failing
microprocessor
b.
Microprocessor
tray
4.
Replace
the
following
components
one
at
a
time,
in
the
order
shown,
restarting
the
server
each
time:
a.
(Trained
service
technician
only)
Failing
microprocessor
b.
(Trained
service
technician
only)
Microprocessor
tray
VRM
A
dc-dc
regulator
has
failed
or
is
missing.
1.
Check
the
BMC
log
or
the
system-error
log
to
determine
the
reason
for
the
lit
LED
(for
a
VRM).
2.
Find
the
failing
or
missing
VRM
by
checking
the
LEDs
on
the
microprocessor
tray.
3.
Install
any
missing
VRMs.
4.
Reseat
the
following
components:
a.
Failing
VRM
b.
(Trained
service
technician
only)
Microprocessor
associated
with
the
VRM
c.
Microprocessor
tray
5.
Replace
the
following
components
one
at
a
time,
in
the
order
shown,
restarting
the
server
each
time:
a.
Failing
VRM
b.
(Trained
service
technician
only)
Microprocessor
associated
with
the
VRM
c.
(Trained
service
technician
only)
Microprocessor
tray
LOG
Information
is
present
in
the
BMC
log
and
system-error
log.
One
or
both
logs
might
be
full
or
almost
full.
1.
Save
the
log
if
necessary
and
clear.
2.
Check
the
log
for
possible
errors.
78
IBM
ERserver
xSeries
460
Type
8872
and
xSeries
MXE
460
Type
8874:
Installation
Guide