IBM 8872 Service Guide - Page 136

backplane

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5. Remove the power supplies (see "Hot-swap power supply" on page 106). 6. Pull the two blue latches on the power-supply structure toward the front of the server; the structure will disengage from the chassis. 7. Grasp the handle in the middle of the structure and rotate the structure up, allowing the structure to pivot at the chassis front. 8. Lift the structure out of the server, and make sure that the alignment tabs clear the chassis. 9. If you are instructed to return the power-supply structure, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you. To install the replacement power-supply structure, complete the following steps. Attention: Do not allow any cables to be pinched or caught on metal protrusions. 1. Align the tabs on the power-supply structure with the notches on the rear of the chassis; then, gently lower the structure into the server. Make sure that the structure is firmly seated in the chassis. 2. Push the two blue latches of the power-supply structure toward the rear of the server until they lock the structure into position. 3. Replace the power supplies. 4. Replace the memory cards. 5. Install the top cover (see "Top cover and bezel" on page 113). 6. Slide the server into the rack. 7. Connect the cables and power cords (see "Completing the installation" in the Installation Guide or User's Guide for cabling instructions). 8. Turn on all attached devices and the server. SAS backplane To remove the Serial Attached SCSI (SAS) backplane, complete the following steps: Release tabs SAS connectors Guide channels 120 IBM xSeries 460 Type 8872 and xSeries MXE 460 Type 8874: Problem Determination and Service Guide

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5.
Remove
the
power
supplies
(see
“Hot-swap
power
supply”
on
page
106).
6.
Pull
the
two
blue
latches
on
the
power-supply
structure
toward
the
front
of
the
server;
the
structure
will
disengage
from
the
chassis.
7.
Grasp
the
handle
in
the
middle
of
the
structure
and
rotate
the
structure
up,
allowing
the
structure
to
pivot
at
the
chassis
front.
8.
Lift
the
structure
out
of
the
server,
and
make
sure
that
the
alignment
tabs
clear
the
chassis.
9.
If
you
are
instructed
to
return
the
power-supply
structure,
follow
all
packaging
instructions,
and
use
any
packaging
materials
for
shipping
that
are
supplied
to
you.
To
install
the
replacement
power-supply
structure,
complete
the
following
steps.
Attention:
Do
not
allow
any
cables
to
be
pinched
or
caught
on
metal
protrusions.
1.
Align
the
tabs
on
the
power-supply
structure
with
the
notches
on
the
rear
of
the
chassis;
then,
gently
lower
the
structure
into
the
server.
Make
sure
that
the
structure
is
firmly
seated
in
the
chassis.
2.
Push
the
two
blue
latches
of
the
power-supply
structure
toward
the
rear
of
the
server
until
they
lock
the
structure
into
position.
3.
Replace
the
power
supplies.
4.
Replace
the
memory
cards.
5.
Install
the
top
cover
(see
“Top
cover
and
bezel”
on
page
113).
6.
Slide
the
server
into
the
rack.
7.
Connect
the
cables
and
power
cords
(see
“Completing
the
installation”
in
the
Installation
Guide
or
User’s
Guide
for
cabling
instructions).
8.
Turn
on
all
attached
devices
and
the
server.
SAS
backplane
To
remove
the
Serial
Attached
SCSI
(SAS)
backplane,
complete
the
following
steps:
Release tabs
Guide channels
SAS connectors
120
IBM
xSeries
460
Type
8872
and
xSeries
MXE
460
Type
8874:
Problem
Determination
and
Service
Guide