IBM x3500 Installation Guide - Page 106

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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 Problem Determination and Service Guide on the IBM System x Documentation CD 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 or information LED also lit Description Action TEMP A system temperature or component 1. See the BMC log or the system-error log (see the has exceeded specifications. Problem Determination and Service Guide on the Note: A fan LED might also be lit. IBM System x Documentation CD) for the source of the fault. 2. Make sure that the airflow in the server is not blocked. 3. If a fan LED is lit, reseat the fan. 4. Replace the fan for which the LED is lit. 5. Make sure that the room is neither too hot nor too cold (see "Environment" in "Features and specifications" on page 5). CPU A microprocessor has failed, is missing, or has been incorrectly installed. Note: (Trained service technician only) Make sure that the microprocessors are installed in the correct sequence. 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 system board. 3. (Trained service technician) Reseat the failing microprocessor. 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) System board S_ERR Reserved VRM A dc-dc regulator has failed or is missing. Note: This error is for either the VRM or integrated VRD. If the VRD has failed, the system board must be replaced by an trained service technician. 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 system board. 3. Install any missing VRMs. 4. Reseat the following components: a. Failing VRM b. (Trained service technician only) Microprocessor associated with the VRM 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) System board 92 IBM System x3500 Type 7977: Installation Guide

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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
Problem
Determination
and
Service
Guide
on
the
IBM
System
x
Documentation
CD
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
or
information
LED
also
lit
Description
Action
TEMP
A
system
temperature
or
component
has
exceeded
specifications.
Note:
A
fan
LED
might
also
be
lit.
1.
See
the
BMC
log
or
the
system-error
log
(see
the
Problem
Determination
and
Service
Guide
on
the
IBM
System
x
Documentation
CD)
for
the
source
of
the
fault.
2.
Make
sure
that
the
airflow
in
the
server
is
not
blocked.
3.
If
a
fan
LED
is
lit,
reseat
the
fan.
4.
Replace
the
fan
for
which
the
LED
is
lit.
5.
Make
sure
that
the
room
is
neither
too
hot
nor
too
cold
(see
“Environment”
in
“Features
and
specifications”
on
page
5).
CPU
A
microprocessor
has
failed,
is
missing,
or
has
been
incorrectly
installed.
Note:
(Trained
service
technician
only)
Make
sure
that
the
microprocessors
are
installed
in
the
correct
sequence.
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
system
board.
3.
(Trained
service
technician)
Reseat
the
failing
microprocessor.
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)
System
board
S_ERR
Reserved
VRM
A
dc-dc
regulator
has
failed
or
is
missing.
Note:
This
error
is
for
either
the
VRM
or
integrated
VRD.
If
the
VRD
has
failed,
the
system
board
must
be
replaced
by
an
trained
service
technician.
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
system
board.
3.
Install
any
missing
VRMs.
4.
Reseat
the
following
components:
a.
Failing
VRM
b.
(Trained
service
technician
only)
Microprocessor
associated
with
the
VRM
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)
System
board
92
IBM
System
x3500
Type
7977:
Installation
Guide