Lenovo ThinkCentre M50e Hardware Maintenance Manual - Page 112

Important

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Locating connectors on the rear 1 Power connector 2 Mouse connector 3 Parallel connector 4 Ethernet connector 5 Audio line in connector 6 PCI slots 7 AGP slot (some models) 8 Audio line out connector 9 Microphone connector 10 USB connectors 11 VGA monitor connector 12 Serial connector 13 USB connectors 14 Keyboard connector Removing the cover Important Read Chapter 2, "Safety information," on page 5 and "Handling electrostatic discharge-sensitive devices" on page 8 before removing the cover. 1. Shut down your operating system, remove any media (diskettes, CDs, or tapes) from the drives, and turn off all attached devices and the computer. 2. Unplug all power cords from electrical outlets. 3. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O) cables, and any other cables that are connected to the computer. 4. Press the buttons on the sides of the computer and pivot the rear of the cover up and off of the computer. 106 Hardware Maintenance Manual

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Locating
connectors
on
the
rear
±1²
Power
connector
±8²
Audio
line
out
connector
±2²
Mouse
connector
±9²
Microphone
connector
±3²
Parallel
connector
±10²
USB
connectors
±4²
Ethernet
connector
±11²
VGA
monitor
connector
±5²
Audio
line
in
connector
±12²
Serial
connector
±6²
PCI
slots
±13²
USB
connectors
±7²
AGP
slot
(some
models)
±14²
Keyboard
connector
Removing
the
cover
Important
Read
Chapter
2,
“Safety
information,”
on
page
5
and
“Handling
electrostatic
discharge-sensitive
devices”
on
page
8
before
removing
the
cover.
1.
Shut
down
your
operating
system,
remove
any
media
(diskettes,
CDs,
or
tapes)
from
the
drives,
and
turn
off
all
attached
devices
and
the
computer.
2.
Unplug
all
power
cords
from
electrical
outlets.
3.
Disconnect
all
cables
attached
to
the
computer.
This
includes
power
cords,
input/output
(I/O)
cables,
and
any
other
cables
that
are
connected
to
the
computer.
4.
Press
the
buttons
on
the
sides
of
the
computer
and
pivot
the
rear
of
the
cover
up
and
off
of
the
computer.
106
Hardware
Maintenance
Manual