Lenovo ThinkCentre M50e Hardware Maintenance Manual - Page 117

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5. Install the new battery. 6. Replace any adapters that were removed to gain access to the battery. 7. Go to "Installing the cover and connecting cables" on page 116. Note: Use the Setup Utility program to set the date and time and any passwords. See Chapter 6, "Using the Setup Utility," on page 55. Removing and replacing the power supply Attention Never remove the cover on a power supply or any part that has the following label attached. Hazardous voltage, current, and energy levels are present inside any component that has this label attached. There are no servicable parts inside these components. 1. Remove the cover. See "Removing the cover" on page 106. 2. Disconnect all power supply cables from the system board and the drives. See "Identifying parts on the system board" on page 108. 3. Remove the four screws that hold the power supply in place. 4. Lift the power supply out. Chapter 9. Replacing FRUs (Types 8149, 8177, and 8178) 111

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5.
Install
the
new
battery.
6.
Replace
any
adapters
that
were
removed
to
gain
access
to
the
battery.
7.
Go
to
“Installing
the
cover
and
connecting
cables”
on
page
116.
Note:
Use
the
Setup
Utility
program
to
set
the
date
and
time
and
any
passwords.
See
Chapter
6,
“Using
the
Setup
Utility,”
on
page
55.
Removing
and
replacing
the
power
supply
Attention
Never
remove
the
cover
on
a
power
supply
or
any
part
that
has
the
following
label
attached.
Hazardous
voltage,
current,
and
energy
levels
are
present
inside
any
component
that
has
this
label
attached.
There
are
no
servicable
parts
inside
these
components.
1.
Remove
the
cover.
See
“Removing
the
cover”
on
page
106.
2.
Disconnect
all
power
supply
cables
from
the
system
board
and
the
drives.
See
“Identifying
parts
on
the
system
board”
on
page
108.
3.
Remove
the
four
screws
that
hold
the
power
supply
in
place.
4.
Lift
the
power
supply
out.
Chapter
9.
Replacing
FRUs
(Types
8149,
8177,
and
8178)
111