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Installing
a
second
microprocessor
Your
computer
comes
with
one
microprocessor
installed
on
the
system
board.
Your
computer
supports
up
to
two
microprocessors.
With
two
microprocessors,
your
computer
can
operate
as
a
symmetric
multiprocessing
(SMP)
computer.
With
SMP,
certain
operating
systems
and
application
programs
can
distribute
the
processing
load
among
the
microprocessors.
Note:
When
installing
microprocessor
options,
lay
the
computer
on
its
side.
The
following
notes
describe
information
that
you
must
consider
when
installing
an
additional
microprocessor
in
your
computer:
v
Read
the
documentation
that
comes
with
the
microprocessor
to
determine
whether
you
need
to
update
the
computer
basic
input/output
system
(BIOS)
code.
The
most
current
level
of
BIOS
code
for
the
computer
is
available
from
http://www.ibm.com/pc/support/.
v
(Optional)
Obtain
an
SMP-capable
operating
system.
For
a
list
of
supported
operating
systems,
go
to
http://www.ibm.com/pc/us/compat/.
v
To
ensure
proper
computer
operation,
use
microprocessors
that
have
the
same
cache
size
and
type,
and
the
same
clock
speed.
Microprocessor
internal
and
external
clock
frequencies
must
be
identical.
You
can
use
the
Configuration/Setup
Utility
program
in
your
computer
to
determine
the
specific
type
of
microprocessor
on
your
system
board.
Important:
The
first
microprocessor
must
always
be
installed
in
the
Microprocessor
1
socket.
v
The
microprocessor
speeds
are
automatically
set
for
this
computer;
therefore,
you
do
not
need
to
set
any
microprocessor
frequency-selection
jumpers
or
switches.
v
Terminator
cards
are
not
required
for
empty
microprocessor
sockets.
However,
for
airflow,
an
empty
microprocessor
socket
must
contain
a
microprocessor
baffle.
v
If
you
need
to
replace
a
microprocessor,
call
for
service.
v
For
additional
illustrations
of
the
system-board
components,
see
“System-board
option
connectors”
on
page
13.
v
To
order
additional
microprocessor
options,
contact
your
IBM
marketing
representative
or
authorized
reseller.
v
For
a
list
of
supported
microprocessor
options
for
your
computer,
go
to
http://www.ibm.com/pc/;
then,
select
your
country
and
navigate
to
the
list
of
options
for
your
computer
The
Microsoft
Windows
XP
operating
system
that
comes
preinstalled
on
your
computer
automatically
configures
itself
when
an
additional
microprocessor
is
installed.
Other
operating
systems
might
have
to
be
manually
configured
to
support
an
additional
microprocessor.
See
the
User’s
Guide
on
the
IBM
IntelliStation
Documentation
CD
for
instructions.
Complete
the
following
steps
to
install
an
additional
microprocessor:
1.
Read
the
safety
information
beginning
on
page
v
and
the
guidelines
in
“Handling
static-sensitive
devices”
on
page
11.
2.
Turn
off
the
computer
and
all
attached
devices.
(See
“Turning
off
the
computer”
on
page
44.)
Chapter
2.
Installing
the
hardware
35