IBM 8872 Service Guide - Page 138

Microprocessor, microprocessor

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Page 138 highlights

1. Read the safety information that begins on page vii and "Installation guidelines" on page 99. 2. Turn off the server and peripheral devices, and disconnect the power cords and all external cables necessary to replace the device. 3. Remove the top cover and bezel (see "Top cover and bezel" on page 113). 4. Remove the DVD drive power and signal cables from the media-interposer card. 5. Note where the light path diagnostics ribbon cable and the USB cable are connected, and then disconnect the light path diagnostics ribbon cable and the USB cable from the I/O board. 6. Press the blue release button on the chassis above the front-panel assembly and pull the assembly out of the server. 7. If you are instructed to return the front-panel assembly, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you. Note: To remove the operator information panel from the front panel assembly, see "Operator information panel assembly" on page 117. To install the replacement front-panel assembly, complete the following steps: 1. Guide the light path diagnostics ribbon cable through first, and insert the assembly into the server through the front. 2. Connect the DVD drive power cable and signal cable. 3. Connect the light path diagnostics ribbon cable and the USB cable to the I/O board. 4. Install the top cover and bezel (see "Top cover and bezel" on page 113). 5. Slide the server into the rack. 6. Connect the cables and power cords (see "Completing the installation" in the Installation Guide or User's Guide for cabling instructions). 7. Turn on all attached devices and the server. Microprocessor tray and microprocessor The following notes describe information that you must consider when replacing a microprocessor: v The voltage regulators for microprocessors 1 and 2 are integrated on the microprocessor board; the VRMs for microprocessors 3 and 4 come with the microprocessor options and must be installed on the microprocessor board. v When installing additional microprocessors, populate the microprocessor connectors in numeric order, starting with connector 2. If you install the microprocessors in the wrong order, the server will not start. Removing and installing a microprocessor To remove the microprocessor tray and a microprocessor, complete the following steps: 122 IBM xSeries 460 Type 8872 and xSeries MXE 460 Type 8874: Problem Determination and Service Guide

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1.
Read
the
safety
information
that
begins
on
page
vii
and
“Installation
guidelines”
on
page
99.
2.
Turn
off
the
server
and
peripheral
devices,
and
disconnect
the
power
cords
and
all
external
cables
necessary
to
replace
the
device.
3.
Remove
the
top
cover
and
bezel
(see
“Top
cover
and
bezel”
on
page
113).
4.
Remove
the
DVD
drive
power
and
signal
cables
from
the
media-interposer
card.
5.
Note
where
the
light
path
diagnostics
ribbon
cable
and
the
USB
cable
are
connected,
and
then
disconnect
the
light
path
diagnostics
ribbon
cable
and
the
USB
cable
from
the
I/O
board.
6.
Press
the
blue
release
button
on
the
chassis
above
the
front-panel
assembly
and
pull
the
assembly
out
of
the
server.
7.
If
you
are
instructed
to
return
the
front-panel
assembly,
follow
all
packaging
instructions,
and
use
any
packaging
materials
for
shipping
that
are
supplied
to
you.
Note:
To
remove
the
operator
information
panel
from
the
front
panel
assembly,
see
“Operator
information
panel
assembly”
on
page
117.
To
install
the
replacement
front-panel
assembly,
complete
the
following
steps:
1.
Guide
the
light
path
diagnostics
ribbon
cable
through
first,
and
insert
the
assembly
into
the
server
through
the
front.
2.
Connect
the
DVD
drive
power
cable
and
signal
cable.
3.
Connect
the
light
path
diagnostics
ribbon
cable
and
the
USB
cable
to
the
I/O
board.
4.
Install
the
top
cover
and
bezel
(see
“Top
cover
and
bezel”
on
page
113).
5.
Slide
the
server
into
the
rack.
6.
Connect
the
cables
and
power
cords
(see
“Completing
the
installation”
in
the
Installation
Guide
or
User’s
Guide
for
cabling
instructions).
7.
Turn
on
all
attached
devices
and
the
server.
Microprocessor
tray
and
microprocessor
The
following
notes
describe
information
that
you
must
consider
when
replacing
a
microprocessor:
v
The
voltage
regulators
for
microprocessors
1
and
2
are
integrated
on
the
microprocessor
board;
the
VRMs
for
microprocessors
3
and
4
come
with
the
microprocessor
options
and
must
be
installed
on
the
microprocessor
board.
v
When
installing
additional
microprocessors,
populate
the
microprocessor
connectors
in
numeric
order,
starting
with
connector
2.
If
you
install
the
microprocessors
in
the
wrong
order,
the
server
will
not
start.
Removing
and
installing
a
microprocessor
To
remove
the
microprocessor
tray
and
a
microprocessor,
complete
the
following
steps:
122
IBM
xSeries
460
Type
8872
and
xSeries
MXE
460
Type
8874:
Problem
Determination
and
Service
Guide