13.
Ensure
that
all
components
have
been
reassembled
correctly
and
that
no
tools
or
loose
screws
are
left
inside
the
computer.
14.
Lower
the
drive
bay
assembly.
15.
Go
to
“Closing
the
cover
and
connecting
the
cables”
on
page
46.
Replacing
the
system
board,
microprocessor,
and
heat
sink
Attention:
If
the
computer
has
been
turned
off
for
a
long
period
of
time
the
thermal
grease
between
the
microprocessor
heat
sink
and
the
microprocessor
might
not
allow
them
to
be
separated
easily.
In
this
case
turn
on
the
computer
for
a
few
minutes
to
soften
the
grease.
1.
Turn
off
the
computer
and
disconnect
the
power
cord
from
the
electrical
outlet.
2.
Disconnect
all
cables
attached
to
the
computer.
This
includes
power
cords,
input/output
(I/O)
cables,
and
any
other
cables
that
are
connected
to
the
computer.
3.
Open
the
cover.
See
“Opening
the
cover”
on
page
25.
34
Hardware
Maintenance
Manual
Summary of Contents for ThinkCentre 8127
Page 1: ...ThinkCentre Hardware Maintenance Manual Types 8127 8183 8184 8320 8416 8417 8418 8419 and 8429...
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Page 3: ...ThinkCentre Hardware Maintenance Manual Types 8127 8183 8184 8320 8416 8417 8418 8419 and 8429...
Page 16: ...10 Hardware Maintenance Manual...
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Page 169: ...Chapter 10 Related service information 163...
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Page 196: ...Part Number 74P2660 Printed in USA 1P P N 74P2660...