IBM x3655 Service Guide - Page 112

Installing, system, board, shuttle

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Important: Note which DIMMs are in which connectors, before you remove the DIMMs. You must install them in the same configuration on the replacement system board. 6. Remove all DIMMs, and place them on a static-protective surface for reinstallation (see "Removing a memory module" on page 62). 7. Disconnect all cables from the system board. 8. Slide the power supplies out of the bays slightly or remove them entirely (see "Removing a hot-swap power supply" on page 68). 9. Slide the power backplane toward the right side of the server (see "Removing the power backplane" on page 82). Attention: In the following step, do not allow the thermal grease to come in contact with anything, and keep each heat sink paired with its microprocessor for reinstallation. Contact with any surface can compromise the thermal grease and the microprocessor socket; a mismatch between the microprocessor and its original heatsink can require the installation of a new heat sink instead. 10. Remove each microprocessor heat sink and microprocessor; then, place them on a static-protective surface for reinstallation (see "Removing a microprocessor" on page 87). 11. Slide the shuttle release latch toward the left side of the server, and push the shuttle toward the rear of the server approximately 12.7 mm (0.5 inch). 12. Lift the shuttle out of the server. 13. If you are instructed to return the shuttle assembly, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you. Installing the system board and shuttle Notes: 1. When you reassemble the components in the server, be sure to route all cables carefully so that they are not exposed to excessive pressure. 2. When you replace the system board, you must either update the server with the latest firmware or restore the pre-existing firmware that the customer provides on a diskette or CD image. 94 IBM System x3655 Type 7985: Problem Determination and Service Guide

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Important:
Note
which
DIMMs
are
in
which
connectors,
before
you
remove
the
DIMMs.
You
must
install
them
in
the
same
configuration
on
the
replacement
system
board.
6.
Remove
all
DIMMs,
and
place
them
on
a
static-protective
surface
for
reinstallation
(see
“Removing
a
memory
module”
on
page
62).
7.
Disconnect
all
cables
from
the
system
board.
8.
Slide
the
power
supplies
out
of
the
bays
slightly
or
remove
them
entirely
(see
“Removing
a
hot-swap
power
supply”
on
page
68).
9.
Slide
the
power
backplane
toward
the
right
side
of
the
server
(see
“Removing
the
power
backplane”
on
page
82).
Attention:
In
the
following
step,
do
not
allow
the
thermal
grease
to
come
in
contact
with
anything,
and
keep
each
heat
sink
paired
with
its
microprocessor
for
reinstallation.
Contact
with
any
surface
can
compromise
the
thermal
grease
and
the
microprocessor
socket;
a
mismatch
between
the
microprocessor
and
its
original
heatsink
can
require
the
installation
of
a
new
heat
sink
instead.
10.
Remove
each
microprocessor
heat
sink
and
microprocessor;
then,
place
them
on
a
static-protective
surface
for
reinstallation
(see
“Removing
a
microprocessor”
on
page
87).
11.
Slide
the
shuttle
release
latch
toward
the
left
side
of
the
server,
and
push
the
shuttle
toward
the
rear
of
the
server
approximately
12.7
mm
(0.5
inch).
12.
Lift
the
shuttle
out
of
the
server.
13.
If
you
are
instructed
to
return
the
shuttle
assembly,
follow
all
packaging
instructions,
and
use
any
packaging
materials
for
shipping
that
are
supplied
to
you.
Installing
the
system
board
and
shuttle
Notes:
1.
When
you
reassemble
the
components
in
the
server,
be
sure
to
route
all
cables
carefully
so
that
they
are
not
exposed
to
excessive
pressure.
2.
When
you
replace
the
system
board,
you
must
either
update
the
server
with
the
latest
firmware
or
restore
the
pre-existing
firmware
that
the
customer
provides
on
a
diskette
or
CD
image.
94
IBM
System
x3655
Type
7985:
Problem
Determination
and
Service
Guide