Lenovo 9935B3U User Manual - Page 25

Installing, replacing, memory, module

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4. Using the blue handle 1 , lift and slide the drive bay assembly forward until the locating studs in the drive bay assembly are aligned with the slots on the sides of the chassis. Pull upward on the handle to remove the drive bay assembly completely from the chassis. Depending on what component of the computer you want to remove, you can either disconnect the cables from the rear of the drives or leave them connected. Figure 8. Removing the drive bay assembly Installing or replacing a memory module Attention Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the ThinkCentre Safety and Warranty Guide that came with your computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide, go to: http://www.lenovo.com/support This section provides instructions on how to install or replace a memory module. Your computer has four slots for installing or replacing DDR2 DIMMs (double data rate 2 dual inline memory modules) that provide up to a maximum of 8 GB of system memory. When you install or replace a memory module, use the following guidelines: v Use 1.8 V, 240-pin DDR2 SDRAM (double data rate 2 synchronous dynamic random access memory). v Use 512 MB, 1 GB, or 2 GB memory modules in any combination up to a maximum of 8 GB. Note: Only DDR2 SDRAM DIMMs can be used. To install or replace a memory module: 1. Remove the computer cover. See "Removing the computer cover" on page 14. 2. You might have to remove the drive bay assembly to access the memory slots. See "Accessing the system board components and drives" on page 15. 3. Remove any parts that might prevent access to the memory slots. 4. Locate the memory slots. See Figure 4 on page 11. Chapter 2. Installing options and replacing hardware 17

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4.
Using
the
blue
handle
±1²
,
lift
and
slide
the
drive
bay
assembly
forward
until
the
locating
studs
in
the
drive
bay
assembly
are
aligned
with
the
slots
on
the
sides
of
the
chassis.
Pull
upward
on
the
handle
to
remove
the
drive
bay
assembly
completely
from
the
chassis.
Depending
on
what
component
of
the
computer
you
want
to
remove,
you
can
either
disconnect
the
cables
from
the
rear
of
the
drives
or
leave
them
connected.
Installing
or
replacing
a
memory
module
Attention
Do
not
open
your
computer
or
attempt
any
repair
before
reading
and
understanding
the
“Important
safety
information”
in
the
ThinkCentre
Safety
and
Warranty
Guide
that
came
with
your
computer.
To
obtain
a
copy
of
the
ThinkCentre
Safety
and
Warranty
Guide
,
go
to:
This
section
provides
instructions
on
how
to
install
or
replace
a
memory
module.
Your
computer
has
four
slots
for
installing
or
replacing
DDR2
DIMMs
(double
data
rate
2
dual
inline
memory
modules)
that
provide
up
to
a
maximum
of
8
GB
of
system
memory.
When
you
install
or
replace
a
memory
module,
use
the
following
guidelines:
v
Use
1.8
V,
240-pin
DDR2
SDRAM
(double
data
rate
2
synchronous
dynamic
random
access
memory).
v
Use
512
MB,
1
GB,
or
2
GB
memory
modules
in
any
combination
up
to
a
maximum
of
8
GB.
Note:
Only
DDR2
SDRAM
DIMMs
can
be
used.
To
install
or
replace
a
memory
module:
1.
Remove
the
computer
cover.
See
“Removing
the
computer
cover”
on
page
14.
2.
You
might
have
to
remove
the
drive
bay
assembly
to
access
the
memory
slots.
See
“Accessing
the
system
board
components
and
drives”
on
page
15.
3.
Remove
any
parts
that
might
prevent
access
to
the
memory
slots.
4.
Locate
the
memory
slots.
See
Figure
4
on
page
11.
Figure
8.
Removing
the
drive
bay
assembly
Chapter
2.
Installing
options
and
replacing
hardware
17