IBM 8863 Service Guide - Page 102

IBM 8863 - eServer xSeries 366 Manual

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Page 102 highlights

v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See Chapter 3, "Parts listing, Type 8863," on page 93 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. System-error log message Action Power Supply X 12V Over Voltage Fault 1. Power supply 2. Power backplane Power Supply X 12V Under Voltage Fault 1. Power supply 2. Power backplane Power Supply X AC Power Removed 1. Connect the ac power cord to power supply X. 2. Replace power supply X. Power Supply X Current Fault 1. Power supply 2. Power backplane Power Supply X DC Good Fault 1. If the system power present LED is lit, reduce the server to the minimum configuration (see page 91) and replace components one at a time to isolate the fault. 2. Reseat the following components: a. Power supply b. Power backplane 3. Replace the components listed in step 2 one at a time, in the order shown, restarting the server each time. Power Supply X Removed 1. Reseat power supply X. 2. Replace power supply X. 3. Replace the power backplane. Power Supply X Temperature Fault 1. Make sure that the fan air intake areas are clear and well ventilated. 2. Make sure that all fans are installed and functioning. 3. Reseat power supply X. 4. Replace power supply X. QA Cache 1.8V Power Good Fault 1. Reseat the microprocessor tray. 2. (Trained service technician only) Reseat the microprocessors. 3. Reseat the microprocessor VRMs, if present. 4. (Trained service technician only) Replace the microprocessor tray. QA Vcc PLL Power Good Fault 1. Reseat the microprocessor tray. 2. (Trained service technician only) Reseat the microprocessors. 3. Reseat the microprocessor VRMs, if present. 4. (Trained service technician only) Replace the microprocessor tray. QB Cache Power Good Fault 1. Reseat the microprocessor tray. 2. (Trained service technician only) Reseat the microprocessors. 3. Reseat the microprocessor VRMs, if present. 4. (Trained service technician only) Replace the microprocessor tray. 86 IBM xSeries 366 Type 8863: Problem Determination and Service 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
Chapter
3,
“Parts
listing,
Type
8863,”
on
page
93
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.
System-error
log
message
Action
Power
Supply
X
12V
Over
Voltage
Fault
1.
Power
supply
2.
Power
backplane
Power
Supply
X
12V
Under
Voltage
Fault
1.
Power
supply
2.
Power
backplane
Power
Supply
X
AC
Power
Removed
1.
Connect
the
ac
power
cord
to
power
supply
X.
2.
Replace
power
supply
X.
Power
Supply
X
Current
Fault
1.
Power
supply
2.
Power
backplane
Power
Supply
X
DC
Good
Fault
1.
If
the
system
power
present
LED
is
lit,
reduce
the
server
to
the
minimum
configuration
(see
page
91)
and
replace
components
one
at
a
time
to
isolate
the
fault.
2.
Reseat
the
following
components:
a.
Power
supply
b.
Power
backplane
3.
Replace
the
components
listed
in
step
2
one
at
a
time,
in
the
order
shown,
restarting
the
server
each
time.
Power
Supply
X
Removed
1.
Reseat
power
supply
X.
2.
Replace
power
supply
X.
3.
Replace
the
power
backplane.
Power
Supply
X
Temperature
Fault
1.
Make
sure
that
the
fan
air
intake
areas
are
clear
and
well
ventilated.
2.
Make
sure
that
all
fans
are
installed
and
functioning.
3.
Reseat
power
supply
X.
4.
Replace
power
supply
X.
QA
Cache
1.8V
Power
Good
Fault
1.
Reseat
the
microprocessor
tray.
2.
(Trained
service
technician
only)
Reseat
the
microprocessors.
3.
Reseat
the
microprocessor
VRMs,
if
present.
4.
(Trained
service
technician
only)
Replace
the
microprocessor
tray.
QA
Vcc
PLL
Power
Good
Fault
1.
Reseat
the
microprocessor
tray.
2.
(Trained
service
technician
only)
Reseat
the
microprocessors.
3.
Reseat
the
microprocessor
VRMs,
if
present.
4.
(Trained
service
technician
only)
Replace
the
microprocessor
tray.
QB
Cache
Power
Good
Fault
1.
Reseat
the
microprocessor
tray.
2.
(Trained
service
technician
only)
Reseat
the
microprocessors.
3.
Reseat
the
microprocessor
VRMs,
if
present.
4.
(Trained
service
technician
only)
Replace
the
microprocessor
tray.
86
IBM
xSeries
366
Type
8863:
Problem
Determination
and
Service
Guide