IBM 8874 Installation Guide - Page 23

Installing, additional, DIMMs

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Installing additional DIMMs The following illustration shows how to install a dual inline memory module (DIMM) on a memory card. The following notes describe information that you must consider when installing DIMMs: v You can configure your server to use memory mirroring and memory scrubbing. For detailed information about configuring your server and using these features, see the User's Guide on the IBM xSeries Documentation CD. v To use the hot-add and hot-swap memory features, you must reconfigure your server using the Configuration/Setup Utility program. See the User's Guide on the IBM xSeries Documentation CD for additional information. v There must be at least one memory card with one pair of DIMMs installed for the server to operate. v When you install additional DIMMs on a memory card, be sure to install them in pairs. All the DIMM pairs on each memory card must be of the same size, and type. v Install the DIMMs on each memory card in the order shown in the following table. You must install at least one pair of DIMMs on each memory card. See the User's Guide on the IBM xSeries Documentation CD for additional memory configuration installation sequences. Table 2. Memory card installation sequence Memory card order Memory card First 1 Second 2 Third 3 Fourth 4 DIMM pair 1 and 3 2 and 4 1 and 3 2 and 4 1 and 3 2 and 4 1 and 3 2 and 4 Note: Add odd-numbered DIMMs to each available memory card first, then add the even-numbered pairs. Chapter 2. Installing options 11

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Installing
additional
DIMMs
The
following
illustration
shows
how
to
install
a
dual
inline
memory
module
(DIMM)
on
a
memory
card.
The
following
notes
describe
information
that
you
must
consider
when
installing
DIMMs:
v
You
can
configure
your
server
to
use
memory
mirroring
and
memory
scrubbing.
For
detailed
information
about
configuring
your
server
and
using
these
features,
see
the
User’s
Guide
on
the
IBM
xSeries
Documentation
CD.
v
To
use
the
hot-add
and
hot-swap
memory
features,
you
must
reconfigure
your
server
using
the
Configuration/Setup
Utility
program.
See
the
User’s
Guide
on
the
IBM
xSeries
Documentation
CD
for
additional
information.
v
There
must
be
at
least
one
memory
card
with
one
pair
of
DIMMs
installed
for
the
server
to
operate.
v
When
you
install
additional
DIMMs
on
a
memory
card,
be
sure
to
install
them
in
pairs.
All
the
DIMM
pairs
on
each
memory
card
must
be
of
the
same
size,
and
type.
v
Install
the
DIMMs
on
each
memory
card
in
the
order
shown
in
the
following
table.
You
must
install
at
least
one
pair
of
DIMMs
on
each
memory
card.
See
the
User’s
Guide
on
the
IBM
xSeries
Documentation
CD
for
additional
memory
configuration
installation
sequences.
Table
2.
Memory
card
installation
sequence
Memory
card
order
Memory
card
DIMM
pair
First
1
1
and
3
2
and
4
Second
2
1
and
3
2
and
4
Third
3
1
and
3
2
and
4
Fourth
4
1
and
3
2
and
4
Note:
Add
odd-numbered
DIMMs
to
each
available
memory
card
first,
then
add
the
even-numbered
pairs.
Chapter
2.
Installing
options
11