IBM 88643RU Service Guide - Page 68

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Attention: Static electricity that is released to internal server components when the server is powered-on might cause the server to halt, which could result in the loss of data. To avoid this potential problem, always use an electrostatic-discharge wrist strap or other grounding system when working inside the server with the power on. 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. Remove the memory cards (see "Removing and replacing a memory card" on page 41). 5. Remove the power supplies (see "Hot-swap power supply" on page 36). 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. 52 IBM System x3850 Type 8864: Problem Determination and Service Guide

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Attention:
Static
electricity
that
is
released
to
internal
server
components
when
the
server
is
powered-on
might
cause
the
server
to
halt,
which
could
result
in
the
loss
of
data.
To
avoid
this
potential
problem,
always
use
an
electrostatic-discharge
wrist
strap
or
other
grounding
system
when
working
inside
the
server
with
the
power
on.
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.
Remove
the
memory
cards
(see
“Removing
and
replacing
a
memory
card”
on
page
41).
5.
Remove
the
power
supplies
(see
“Hot-swap
power
supply”
on
page
36).
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.
52
IBM
System
x3850
Type
8864:
Problem
Determination
and
Service
Guide