AC
DC
10.
Open
the
memory
card
retention
levers
on
the
top
of
the
memory
card.
11.
Insert
the
memory
card
into
the
memory
card
connector.
12.
Press
the
memory
card
into
the
connector
and
close
the
small
retention
lever.
13.
Wait
two
seconds
and
close
the
large
retention
lever.
If
you
have
other
options
to
install
or
remove,
do
so
now;
otherwise,
go
to
“Completing
the
installation”
on
page
47.
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
For
a
list
of
supported
options
for
the
server,
see
http://www.ibm.com/servers/
eserver/serverproven/compat/us/.
v
The
server
supports
up
to
four
Intel
Xeon
microprocessors.
If
you
are
installing
two
or
more
microprocessors,
they
must
be
the
same
cache
size
and
type,
and
the
same
clock
speed.
v
With
more
than
one
microprocessor,
the
server
can
operate
as
a
symmetric
multiprocessing
(SMP)
server.
With
SMP,
certain
operating
systems
and
application
programs
can
distribute
the
processing
load
among
the
microprocessors.
This
enhances
performance
for
database
and
point-of-sale
applications,
integrated
manufacturing
solutions,
and
other
applications.
v
The
voltage
regulators
for
microprocessors
1
and
2
are
integrated
on
the
microprocessor
board;
the
VRMs
for
microprocessors
3
and
4
come
with
the
microprocessor
options
and
must
be
installed
on
the
microprocessor
board.
42
IBM
System
x3950
Type
8872
and
System
x3950
E
Type
8874:
User’s
Guide
Summary of Contents for x3950 8872
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