Lenovo ThinkCentre A52 (English) Quick reference guide - Page 12

drive, safety

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become blocked by placing the product on a bed, sofa, carpet, or other flexible surface. Never block, cover or disable these features. You should inspect your desktop computer for dust accumulation at least once every three months. Before inspecting your computer, turn off the power and unplug the computer's power cord from the electrical outlet; then remove any dust from vents and perforations in the bezel. If you notice external dust accumulation, you should also examine and remove dust from the inside of the computer including heat sink inlet fins, power supply vents, and fans. Always turn off and unplug the computer before opening the cover. If possible, avoid operating your computer within 2 feet of high-traffic areas. If you must operate your computer in or near a high-traffic area, you should inspect and, if necessary, clean your computer more frequently. For your safety and to maintain optimum computer performance, always follow these basic precautions with your desktop computer: v Keep the cover closed whenever the computer is plugged in. v Regularly inspect the outside of the computer for dust accumulation. v Remove dust from vents and any perforations in the bezel. More frequent cleanings might be required for computers in dusty or high-traffic areas. v Do not block or restrict airflow into the front of the computer. v Do not block the airflow vents on the back of the computer. v Do not store or operate your computer inside furniture, as this might increase the risk of overheating. v Airflow temperatures into the computer should not exceed 35° C (95° F). v Do not use non-ThinkCentre air filtration devices. CD and DVD drive safety CD and DVD drives spin discs at a high speed. If a CD or DVD is cracked or otherwise physically damaged, it is possible for the disc to break apart or even shatter when the CD drive is in use. To protect against possible injury due to this situation, and to reduce the risk of damage to your machine, do the following: v Always store CD/DVD discs in their original packaging v Always store CD/DVD discs out of direct sunlight and away from direct heat sources v Remove CD/DVD discs from the computer when not in use v Do not bend or flex CD/DVD discs, or force them into the computer or their packaging v Check CD/DVD discs for cracks before each use. Do not use cracked or damaged discs x Quick Reference

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become
blocked
by
placing
the
product
on
a
bed,
sofa,
carpet,
or
other
flexible
surface.
Never
block,
cover
or
disable
these
features.
You
should
inspect
your
desktop
computer
for
dust
accumulation
at
least
once
every
three
months.
Before
inspecting
your
computer,
turn
off
the
power
and
unplug
the
computer’s
power
cord
from
the
electrical
outlet;
then
remove
any
dust
from
vents
and
perforations
in
the
bezel.
If
you
notice
external
dust
accumulation,
you
should
also
examine
and
remove
dust
from
the
inside
of
the
computer
including
heat
sink
inlet
fins,
power
supply
vents,
and
fans.
Always
turn
off
and
unplug
the
computer
before
opening
the
cover.
If
possible,
avoid
operating
your
computer
within
2
feet
of
high-traffic
areas.
If
you
must
operate
your
computer
in
or
near
a
high-traffic
area,
you
should
inspect
and,
if
necessary,
clean
your
computer
more
frequently.
For
your
safety
and
to
maintain
optimum
computer
performance,
always
follow
these
basic
precautions
with
your
desktop
computer:
v
Keep
the
cover
closed
whenever
the
computer
is
plugged
in.
v
Regularly
inspect
the
outside
of
the
computer
for
dust
accumulation.
v
Remove
dust
from
vents
and
any
perforations
in
the
bezel.
More
frequent
cleanings
might
be
required
for
computers
in
dusty
or
high-traffic
areas.
v
Do
not
block
or
restrict
airflow
into
the
front
of
the
computer.
v
Do
not
block
the
airflow
vents
on
the
back
of
the
computer.
v
Do
not
store
or
operate
your
computer
inside
furniture,
as
this
might
increase
the
risk
of
overheating.
v
Airflow
temperatures
into
the
computer
should
not
exceed
35°
C
(95°
F).
v
Do
not
use
non-ThinkCentre
air
filtration
devices.
CD
and
DVD
drive
safety
CD
and
DVD
drives
spin
discs
at
a
high
speed.
If
a
CD
or
DVD
is
cracked
or
otherwise
physically
damaged,
it
is
possible
for
the
disc
to
break
apart
or
even
shatter
when
the
CD
drive
is
in
use.
To
protect
against
possible
injury
due
to
this
situation,
and
to
reduce
the
risk
of
damage
to
your
machine,
do
the
following:
v
Always
store
CD/DVD
discs
in
their
original
packaging
v
Always
store
CD/DVD
discs
out
of
direct
sunlight
and
away
from
direct
heat
sources
v
Remove
CD/DVD
discs
from
the
computer
when
not
in
use
v
Do
not
bend
or
flex
CD/DVD
discs,
or
force
them
into
the
computer
or
their
packaging
v
Check
CD/DVD
discs
for
cracks
before
each
use.
Do
not
use
cracked
or
damaged
discs
x
Quick
Reference