Overview
This
guide
is
intended
to
be
used
by
customers
who
are
replacing
Customer
Replaceable
Units
(CRUs)
as
well
as
trained
service
personnel
who
are
replacing
Field
Replaceable
Units
(FRUs).
In
this
document,
CRUs
and
FRUs
will
be
referred
to
as
parts.
This
guide
does
not
include
procedures
for
all
parts.
It
is
expected
that
cables,
switches,
and
certain
mechanical
parts
can
be
replaced
by
trained
service
personnel
without
the
need
for
step-by-step
procedures.
This
guide
contains
instructions
for
replacing
the
following
parts:
v
Power
supply
v
System
board
v
Microprocessor
v
Hard
disk
drive
v
Diskette
drive
v
Optical
drive
v
Memory
modules
v
Adapter
card
v
Internal
speaker
v
Keyboard
v
Mouse
Safety
information
for
replacing
CRUs
Do
not
open
your
computer
or
attempt
any
repair
before
reading
the
“Important
safety
information”
in
the
Quick
Reference
that
was
included
with
your
computer.
To
obtain
a
copy
of
the
Quick
Reference
,
go
to
the
World
Wide
Web
at
http://www.ibm.com/pc/support/site.wss/document.do?lndocid=part-video.
Safety
information
for
replacing
FRUs
Do
not
open
your
computer
or
attempt
any
repair
before
reading
the
“Important
safety
information”
in
the
Hardware
Maintenance
Manual
(HMM).
To
obtain
a
copy
of
the
HMM
,
go
to
the
World
Wide
Web
at
http://www.ibm.com/pc/support/site.wss/document.do?lndocid=part-video.
Additional
information
resources
If
you
have
Internet
access,
the
most
up-to-date
information
for
your
computer
is
available
from
the
World
Wide
Web.
You
can
find
the
following
information:
v
CRU
removal
and
installation
instructions
v
Publications
v
Troubleshooting
information
v
Parts
information
v
Downloads
and
drivers
v
Links
to
other
useful
sources
of
information
©
Copyright
IBM
Corp.
2005
v
Summary of Contents for ThinkCentre 8129
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