IBM 8840 Hardware Maintenance Manual - Page 52

Installing, microprocessor

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Attention: To avoid breaking the retaining clips or damaging the DIMM connectors, handle the clips gently. b. If the retaining clips are closed, open them; then, insert the DIMM by pressing the DIMM straight into the connector. Make sure that the retaining clips snap into the closed position. Note: If there is a gap between the DIMM and the retaining clips, the DIMM has not been properly installed. In this case, open the retaining clips and remove the DIMM; then, reinsert the DIMM. 7. Install the air baffle over the system board. If you have other options to install or remove, do so now. Otherwise, go to "Completing the installation" on page 51. Installing a microprocessor The following notes describe the type of microprocessor that the server supports and other information that you must consider when installing a microprocessor: v The server supports up to two microprocessors. With two microprocessors, the server can operate as a symmetric multiprocessing (SMP) server. With SMP, certain operating systems and application programs can distribute the processing load between the microprocessors. If the server comes with one microprocessor, you can install a second microprocessor. v You might have to update the BIOS code. Be sure to read the documentation that comes with the microprocessor, so that you can determine whether you have to update the BIOS code. You can download the latest level of BIOS code and many other code updates for your server at http://www.ibm.com/support/. v (Optional) Obtain an SMP-capable operating system. For a list of supported operating systems and other options, go to http://www.ibm.com/servers/eserver/ serverproven/compat/us/. v To order additional microprocessor options, contact your IBM marketing representative or authorized reseller. v When you install an additional microprocessor in socket J23, you must also install the voltage regulator module (VRM) that comes with the microprocessor in VRM connector J72. v The microprocessor speeds are automatically set for this server; therefore, you do not have to set any microprocessor frequency-selection jumpers or switches. v If you have to replace a microprocessor, call for service. v If the thermal-grease protective cover (for example, a plastic cap or tape liner) is removed from the heat sink or fan sink, do not touch the thermal grease on the bottom of the heat sink or fan sink or set down the heat sink or fan sink. Note: Removing the heat sink or fan sink from the microprocessor destroys the even distribution of the thermal grease and requires replacing the thermal grease. Setting down the heat sink or fan sink onto any surface when the thermal-grease protective cover is removed will contaminate the thermal grease. If the thermal grease becomes contaminated with particles, it must be replaced. For information about replacing contaminated thermal grease on the heat sink or fan sink, contact IBM Services. For support phone numbers, go to http://www.ibm.com/planetwide/, or in the U.S. and Canada, call 1-800-IBM-SERV (1-800-426-7378). Have the following information ready when you call: - Machine type and model 42 xSeries 346 Types 8840 and 1880: Hardware Maintenance Manual and Troubleshooting Guide

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Attention:
To
avoid
breaking
the
retaining
clips
or
damaging
the
DIMM
connectors,
handle
the
clips
gently.
b.
If
the
retaining
clips
are
closed,
open
them;
then,
insert
the
DIMM
by
pressing
the
DIMM
straight
into
the
connector.
Make
sure
that
the
retaining
clips
snap
into
the
closed
position.
Note:
If
there
is
a
gap
between
the
DIMM
and
the
retaining
clips,
the
DIMM
has
not
been
properly
installed.
In
this
case,
open
the
retaining
clips
and
remove
the
DIMM;
then,
reinsert
the
DIMM.
7.
Install
the
air
baffle
over
the
system
board.
If
you
have
other
options
to
install
or
remove,
do
so
now.
Otherwise,
go
to
“Completing
the
installation”
on
page
51.
Installing
a
microprocessor
The
following
notes
describe
the
type
of
microprocessor
that
the
server
supports
and
other
information
that
you
must
consider
when
installing
a
microprocessor:
v
The
server
supports
up
to
two
microprocessors.
With
two
microprocessors,
the
server
can
operate
as
a
symmetric
multiprocessing
(SMP)
server.
With
SMP,
certain
operating
systems
and
application
programs
can
distribute
the
processing
load
between
the
microprocessors.
If
the
server
comes
with
one
microprocessor,
you
can
install
a
second
microprocessor.
v
You
might
have
to
update
the
BIOS
code.
Be
sure
to
read
the
documentation
that
comes
with
the
microprocessor,
so
that
you
can
determine
whether
you
have
to
update
the
BIOS
code.
You
can
download
the
latest
level
of
BIOS
code
and
many
other
code
updates
for
your
server
at
v
(Optional)
Obtain
an
SMP-capable
operating
system.
For
a
list
of
supported
operating
systems
and
other
options,
go
to
serverproven/compat/us/.
v
To
order
additional
microprocessor
options,
contact
your
IBM
marketing
representative
or
authorized
reseller.
v
When
you
install
an
additional
microprocessor
in
socket
J23,
you
must
also
install
the
voltage
regulator
module
(VRM)
that
comes
with
the
microprocessor
in
VRM
connector
J72.
v
The
microprocessor
speeds
are
automatically
set
for
this
server;
therefore,
you
do
not
have
to
set
any
microprocessor
frequency-selection
jumpers
or
switches.
v
If
you
have
to
replace
a
microprocessor,
call
for
service.
v
If
the
thermal-grease
protective
cover
(for
example,
a
plastic
cap
or
tape
liner)
is
removed
from
the
heat
sink
or
fan
sink,
do
not
touch
the
thermal
grease
on
the
bottom
of
the
heat
sink
or
fan
sink
or
set
down
the
heat
sink
or
fan
sink.
Note:
Removing
the
heat
sink
or
fan
sink
from
the
microprocessor
destroys
the
even
distribution
of
the
thermal
grease
and
requires
replacing
the
thermal
grease.
Setting
down
the
heat
sink
or
fan
sink
onto
any
surface
when
the
thermal-grease
protective
cover
is
removed
will
contaminate
the
thermal
grease.
If
the
thermal
grease
becomes
contaminated
with
particles,
it
must
be
replaced.
For
information
about
replacing
contaminated
thermal
grease
on
the
heat
sink
or
fan
sink,
contact
IBM
Services.
For
support
phone
numbers,
go
to
or
in
the
U.S.
and
Canada,
call
1-800-IBM-SERV
(1-800-426-7378).
Have
the
following
information
ready
when
you
call:
–
Machine
type
and
model
42
xSeries
346
Types
8840
and
1880:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide