IBM 88643RU Service Guide - Page 70

information, Front-panel, assembly, Microprocessor, microprocessor

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FRU information Front-panel assembly To remove the front-panel assembly, complete the following steps. Release button 1. Read the safety information that begins on page vii, and "Handling static-sensitive devices" on page 31. 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. 4. Remove the DVD drive power and signal cables from the media-interposer card. 5. Note where the light path diagnostics ribbon cable is connected, and then disconnect the light path diagnostics ribbon cable from the I/O board. 6. Press the blue tab on the chassis above the front-panel assembly and pull the assembly out of the server. To install a 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 to the I/O board. 4. Replace the bezel and top cover. 5. Reconnect the external cables and power cords. Microprocessor tray and microprocessor The following sections describe how to replace the microprocessor tray and a microprocessor. The following notes describe information that you must consider when installing a microprocessor: v When the microprocessor tray is replaced, the BMC MAC address changes to a default value. 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. 54 IBM System x3850 Type 8864: Problem Determination and Service Guide

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FRU
information
Front-panel
assembly
To
remove
the
front-panel
assembly,
complete
the
following
steps.
Release
button
1.
Read
the
safety
information
that
begins
on
page
vii,
and
“Handling
static-sensitive
devices”
on
page
31.
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.
4.
Remove
the
DVD
drive
power
and
signal
cables
from
the
media-interposer
card.
5.
Note
where
the
light
path
diagnostics
ribbon
cable
is
connected,
and
then
disconnect
the
light
path
diagnostics
ribbon
cable
from
the
I/O
board.
6.
Press
the
blue
tab
on
the
chassis
above
the
front-panel
assembly
and
pull
the
assembly
out
of
the
server.
To
install
a
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
to
the
I/O
board.
4.
Replace
the
bezel
and
top
cover.
5.
Reconnect
the
external
cables
and
power
cords.
Microprocessor
tray
and
microprocessor
The
following
sections
describe
how
to
replace
the
microprocessor
tray
and
a
microprocessor.
The
following
notes
describe
information
that
you
must
consider
when
installing
a
microprocessor:
v
When
the
microprocessor
tray
is
replaced,
the
BMC
MAC
address
changes
to
a
default
value.
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.
54
IBM
System
x3850
Type
8864:
Problem
Determination
and
Service
Guide