IBM 8863 Service Guide - Page 138

backplane

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6. Pull the two blue latches ( 1 ) 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 ( 2 ), 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. To install a 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. Replace the top cover. 6. Reconnect the external cables and power cords. SAS backplane To remove the Serial Attached SCSI (SAS) backplane, complete the following steps. Release tabs SAS connectors Guide channels 1. Read the safety information that begins on page vii, and "Handling static-sensitive devices" on page 100. 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. 4. Pull the hard disk drives out of the server slightly to disengage them from the SAS backplane. 122 IBM xSeries 366 Type 8863: Problem Determination and Service Guide

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6.
Pull
the
two
blue
latches
(
±1²
)
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
(
±2²
),
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.
To
install
a
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.
Replace
the
top
cover.
6.
Reconnect
the
external
cables
and
power
cords.
SAS
backplane
To
remove
the
Serial
Attached
SCSI
(SAS)
backplane,
complete
the
following
steps.
Release tabs
Guide channels
SAS connectors
1.
Read
the
safety
information
that
begins
on
page
vii,
and
“Handling
static-sensitive
devices”
on
page
100.
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.
4.
Pull
the
hard
disk
drives
out
of
the
server
slightly
to
disengage
them
from
the
SAS
backplane.
122
IBM
xSeries
366
Type
8863:
Problem
Determination
and
Service
Guide