IBM 8131 사용자 설명서

다운로드
페이지 44
Replacing
 
the
 
system
 
board
 
assembly
 
 
Attention:
 
Do
 
not
 
remove
 
the
 
computer
 
cover
 
or
 
attempt
 
any
 
repair
 
before
 
reading
 
the
 
“Important
 
safety
 
information”
 
in
 
the
 
Quick
 
Reference
 
that
 
was
 
included
 
with
 
your
 
computer
 
or
 
in
 
the
 
Hardware
 
Maintenance
 
Manual
 
(HMM)
 
for
 
the
 
computer.
 
To
 
obtain
 
copies
 
of
 
the
 
Quick
 
Reference
 
or
 
HMM,
 
go
 
to
 
http://www.ibm.com/pc/support.
  
 
1.
   
Turn
 
off
 
the
 
computer
 
and
 
allow
 
it
 
to
 
cool
 
for
 
one
 
hour.
 
 
2.
   
Remove
 
the
 
computer
 
cover.
 
See
 
Note:
 
For
 
this
 
procedure,
 
it
 
helps
 
to
 
lay
 
the
 
computer
 
on
 
its
 
side.
 
 
3.
   
Carefully
 
note
 
the
 
location
 
of
 
all
 
cable
 
connections
 
on
 
the
 
system
 
board.
 
It
 
will
 
be
 
necessary
 
to
 
reconnect
 
them
 
correctly
 
after
 
you
 
install
 
the
 
new
 
system
 
board
 
assembly.
 
See
 
to
 
locate
 
the
 
cables.
 
 
 
Important
 
Note
 
the
 
cable
 
routing.
 
It
 
is
 
important
 
to
 
route
 
the
 
cables
 
the
 
same
 
way
 
after
 
you
 
install
 
the
 
new
 
system
 
board.
 
4.
   
Remove
 
the
 
air
 
baffle
 
by
 
squeezing
 
the
 
two
 
tabs
 
1
 
together
 
and
 
pulling
 
it
 
out
 
of
 
the
 
chassis.
 
  
  
 
5.
   
Remove
 
any
 
PCI
 
adapter
 
cards.
 
See
 
 
12
 
Hardware
 
Replacement
 
Guide