Lenovo ThinkCentre M52 User Manual - Page 31

Installing, memory

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Installing memory Your computer has four connectors for installing dual inline memory modules (DIMMs) that provide up to a maximum of 4.0 GB of system memory. When installing DDR2 type memory modules, the following rules apply: v Use 1.8 V, 240-pin double data rate 2 synchronous dynamic random access memory (DDR2 SDRAM). v Use 256 MB, 512 MB, 1.0 GB, or 2.0 GB memory modules in any combination. To install a memory module: 1. Remove the cover. See "Removing the cover" on page 10. 2. Locate the memory connectors. See "Identifying parts on the system board" on page 14. 3. Open the retaining clips. 4. Make sure that the notch 1 on the memory module aligns correctly with the connector key 2 on the system board. Push the memory module straight down into the connector until the retaining clips close. What to do next: v To work with another option, go to the appropriate section. v To complete the installation, go to "Replacing the cover and connecting the cables" on page 27. Chapter 1. Installing options 15

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Installing
memory
Your
computer
has
four
connectors
for
installing
dual
inline
memory
modules
(DIMMs)
that
provide
up
to
a
maximum
of
4.0
GB
of
system
memory.
When
installing
DDR2
type
memory
modules,
the
following
rules
apply:
v
Use
1.8
V,
240-pin
double
data
rate
2
synchronous
dynamic
random
access
memory
(DDR2
SDRAM).
v
Use
256
MB,
512
MB,
1.0
GB,
or
2.0
GB
memory
modules
in
any
combination.
To
install
a
memory
module:
1.
Remove
the
cover.
See
“Removing
the
cover”
on
page
10.
2.
Locate
the
memory
connectors.
See
“Identifying
parts
on
the
system
board”
on
page
14.
3.
Open
the
retaining
clips.
4.
Make
sure
that
the
notch
±1²
on
the
memory
module
aligns
correctly
with
the
connector
key
±2²
on
the
system
board.
Push
the
memory
module
straight
down
into
the
connector
until
the
retaining
clips
close.
What
to
do
next:
v
To
work
with
another
option,
go
to
the
appropriate
section.
v
To
complete
the
installation,
go
to
“Replacing
the
cover
and
connecting
the
cables”
on
page
27.
Chapter
1.
Installing
options
15