Lenovo ThinkPad 300 Service Guide - Page 51

Replacing, second, battery

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3 1 1 1 2 9. Reinstall the battery. 10. Turn the computer over, and reconnect the AC adapter and the cables to the computer. To make sure that the SO-DIMM is installed correctly, do as follows: 1. Turn on the computer. 2. When the ThinkPad logo comes up, immediately press F1 to enter the BIOS Setup Utility. 3. The "Installed memory" item shows the total amount of memory installed in your computer. Replacing the second battery Important: Read Safety and Warranty Guide before replacing the second battery. Some models come with a second battery. To replace it, do as follows: 1. Turn off the computer, or enter hibernation mode. Then disconnect the AC adapter and all cables from the computer. Wait for a few minutes, till the inside of the computer cools, before you start the following procedures. Chapter 5. Upgrading and replacing devices 43

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3
1
1
1
2
9.
Reinstall
the
battery.
10.
Turn
the
computer
over,
and
reconnect
the
AC
adapter
and
the
cables
to
the
computer.
To
make
sure
that
the
SO-DIMM
is
installed
correctly,
do
as
follows:
1.
Turn
on
the
computer.
2.
When
the
ThinkPad
logo
comes
up,
immediately
press
F1
to
enter
the
BIOS
Setup
Utility.
3.
The
“Installed
memory”
item
shows
the
total
amount
of
memory
installed
in
your
computer.
Replacing
the
second
battery
Important:
Read
Safety
and
Warranty
Guide
before
replacing
the
second
battery.
Some
models
come
with
a
second
battery.
To
replace
it,
do
as
follows:
1.
Turn
off
the
computer,
or
enter
hibernation
mode.
Then
disconnect
the
AC
adapter
and
all
cables
from
the
computer.
Wait
for
a
few
minutes,
till
the
inside
of
the
computer
cools,
before
you
start
the
following
procedures.
Chapter
5.
Upgrading
and
replacing
devices
43