Lenovo E100 Hardware Maintenance Manual - Page 97

Replacing, battery

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Replacing the CMOS battery This procedure describes how to remove and replace the CMOS battery. If the CMOS battery fails, the date, time, and configuration information (including passwords) are lost. An error message is displayed when you turn on the computer. 1. Turn off the computer and all attached devices. 2. Unplug the power cord and remove the cover. See "Removing the covers" on page 86. 3. Locate the battery. See "Identifying parts on the system board" on page 85. 4. If necessary, remove any adapters that impede access to the battery. See "Replacing a PCI adapter" on page 89 for more information. 5. Remove the old battery. 6. Install the new battery. 7. Replace any adapters that were removed to gain access to the battery. See "Replacing a PCI adapter" on page 89 for instructions for replacing adapters. 8. Replace the cover, and plug in the power cord. See "Completing the FRU replacement" on page 105. Note: When the computer is turned on for the first time after battery replacement, an error message might be displayed. This is normal after replacing the battery. Chapter 8. Replacing FRUs (Type 9626) 91

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Replacing
the
CMOS
battery
This
procedure
describes
how
to
remove
and
replace
the
CMOS
battery.
If
the
CMOS
battery
fails,
the
date,
time,
and
configuration
information
(including
passwords)
are
lost.
An
error
message
is
displayed
when
you
turn
on
the
computer.
1.
Turn
off
the
computer
and
all
attached
devices.
2.
Unplug
the
power
cord
and
remove
the
cover.
See
“Removing
the
covers”
on
page
86.
3.
Locate
the
battery.
See
“Identifying
parts
on
the
system
board”
on
page
85.
4.
If
necessary,
remove
any
adapters
that
impede
access
to
the
battery.
See
“Replacing
a
PCI
adapter”
on
page
89
for
more
information.
5.
Remove
the
old
battery.
6.
Install
the
new
battery.
7.
Replace
any
adapters
that
were
removed
to
gain
access
to
the
battery.
See
“Replacing
a
PCI
adapter”
on
page
89
for
instructions
for
replacing
adapters.
8.
Replace
the
cover,
and
plug
in
the
power
cord.
See
“Completing
the
FRU
replacement”
on
page
105.
Note:
When
the
computer
is
turned
on
for
the
first
time
after
battery
replacement,
an
error
message
might
be
displayed.
This
is
normal
after
replacing
the
battery.
Chapter
8.
Replacing
FRUs
(Type
9626)
91