Lenovo S200 Hardware Maintenance Manual - Page 152

Installing, memory

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Replacing a memory module This procedure describes how to remove and replace a memory module. Installing memory This computer either has two or four connectors for installing double data rate 2 dual inline memory modules (DDR2 DIMMs). System boards with two connectors can accommodate a maximum of 2.0 GB of system memory. System boards with four connectors can accommodate a maximum of 4.0 GB of system memory. When installing memory modules, the following rules apply: v If you are replacing a memory module on a system board with four memory connectors, at least one memory module must be installed in the first memory channel (in either memory connector 1 or memory connector 2). See "Locating parts on the system board" on page 125for more information. v Use 1.8 V, 240-pin, double data rate 2 synchronous dynamic random access memory (DDR2 SDRAM). v Use 256 MB, 512 MB, or 1 GB memory modules in any combination. Note: Only DDR2 SDRAM DIMMs can be used. 1. Remove the computer cover. See "Removing the cover" on page 123. Note: For this procedure, it helps to lay the computer on its side. 2. Locate the memory module connectors. See "Locating parts on the system board" on page 125. 3. Remove the memory module being replaced by opening the retaining clips as shown. 4. Position the new memory module over the memory connector. Make sure the notch 1 on the memory aligns correctly with the connector key 2 on the system board. Push the memory module straight down into the connector until 146 Hardware Maintenance Manual

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Replacing
a
memory
module
This
procedure
describes
how
to
remove
and
replace
a
memory
module.
Installing
memory
This
computer
either
has
two
or
four
connectors
for
installing
double
data
rate
2
dual
inline
memory
modules
(DDR2
DIMMs).
System
boards
with
two
connectors
can
accommodate
a
maximum
of
2.0
GB
of
system
memory.
System
boards
with
four
connectors
can
accommodate
a
maximum
of
4.0
GB
of
system
memory.
When
installing
memory
modules,
the
following
rules
apply:
v
If
you
are
replacing
a
memory
module
on
a
system
board
with
four
memory
connectors,
at
least
one
memory
module
must
be
installed
in
the
first
memory
channel
(in
either
memory
connector
1
or
memory
connector
2).
See
“Locating
parts
on
the
system
board”
on
page
125for
more
information.
v
Use
1.8
V,
240-pin,
double
data
rate
2
synchronous
dynamic
random
access
memory
(DDR2
SDRAM).
v
Use
256
MB,
512
MB,
or
1
GB
memory
modules
in
any
combination.
Note:
Only
DDR2
SDRAM
DIMMs
can
be
used.
1.
Remove
the
computer
cover.
See
“Removing
the
cover”
on
page
123.
Note:
For
this
procedure,
it
helps
to
lay
the
computer
on
its
side.
2.
Locate
the
memory
module
connectors.
See
“Locating
parts
on
the
system
board”
on
page
125.
3.
Remove
the
memory
module
being
replaced
by
opening
the
retaining
clips
as
shown.
4.
Position
the
new
memory
module
over
the
memory
connector.
Make
sure
the
notch
±1²
on
the
memory
aligns
correctly
with
the
connector
key
±2²
on
the
system
board.
Push
the
memory
module
straight
down
into
the
connector
until
146
Hardware
Maintenance
Manual