Lenovo 7244 Manuel D’Utilisation
4.
Position
the
replacement
memory
module
over
the
memory
slot.
Make
sure
the
notch
1
on
the
memory
module
aligns
correctly
with
the
slot
key
2
on
the
system
board.
Push
the
memory
module
straight
down
into
the
slot
until
the
retaining
clips
close.
5.
Go
to
Replacing
the
power
supply
Attention
Do
not
open
your
computer
or
attempt
any
repair
before
reading
and
understanding
the
“Important
safety
information”
in
the
ThinkCentre
Safety
and
Warranty
Guide
that
came
with
your
computer.
To
obtain
a
copy
of
the
ThinkCentre
Safety
and
Warranty
Guide,
go
to:
http://www.lenovo.com/support
This
section
provides
instructions
on
how
to
replace
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
serviceable
parts
inside
these
components.
To
replace
the
power
supply:
1.
Remove
the
computer
cover.
See
2.
Disconnect
the
power
supply
cables
from
the
system
board
and
from
all
drives.
See
Figure
8.
Installing
the
memory
module
92
Hardware
Maintenance
Manual