5.
Remove
the
power
supplies
(see
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
6.
Slide
the
server
into
the
rack.
7.
Connect
the
cables
and
power
cords
(see
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
138
IBM
System
x3950
Type
8878
and
System
x3950
E
Type
8879:
Problem
Determination
and
Service
Guide
