Lenovo 6019 ハードウェアマニュアル
Replacing
the
system
board
Important
The
heat
sink
and
microprocessor
might
be
very
hot.
Make
sure
these
components
are
cool
enough
to
safely
handle
before
continuing
this
procedure.
Note:
When
replacing
the
system
board
you
must
also
order
a
new
retention
module
for
the
new
system
board.
Make
sure
you
have
a
retention
module
for
the
new
system
board
before
continuing
with
this
procedure.
This
procedure
describes
how
to
remove
and
replace
the
system
board.
1.
Open
the
computer
cover.
See
2.
Pivot
the
drive
bay
assembly
upward
to
gain
access
to
the
system
board.
3.
Remove
the
PCI
riser.
See
4.
Locate
the
rear
fan
bracket
assembly
and
the
rear
fan
connector.
See
and
5.
Disconnect
the
rear
fan
cable
and
remove
the
rear
fan
bracket
assembly
by
lifting
it
off
the
system
board.
6.
Take
note
of
the
location
of
all
cable
connections
on
the
system
board.
It
will
be
necessary
to
reconnect
them
properly
when
installing
a
new
system
board.
7.
Disconnect
all
cables
connected
to
the
system
board.
See
8.
Take
note
of
the
location
of
the
memory
modules
and
remove
them
from
the
failing
system
board.
See
Chapter
9.
Replacing
FRUs
-
Ultra
SFF
Desktop
computers
125