IBM 88643RU Service Guide - Page 73

installing

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To install a microprocessor tray and a microprocessor, complete the following steps: 1. Lift the microprocessor-release lever to the fully open position (approximately 135° angle). Lever closed Lever fully open Attention: To avoid bending the pins on the microprocessor, do not use excessive force when pressing it into the socket. 2. Position the microprocessor over the microprocessor socket as shown in the following illustration. Carefully press the microprocessor into the socket. Microprocessor Microprocessor orientation indicator Microprocessor connector Microprocessorrelease lever 3. Close the microprocessor-release lever to secure the microprocessor. 4. Make sure that the heat-sink retaining clip is open. 5. If you are installing a new heat sink, remove the cover from the bottom of the heat sink. If you are reinstalling a heat sink that was previously removed, go to "Thermal grease" on page 58 for instructions on replacing the contaminated or missing thermal grease; then, return here and continue step 6. 6. If necessary, remove the cover from the bottom of the heat sink. 7. Position the heat sink above the microprocessor; then, press the heat sink into place and close the heat-sink release lever. Note: If you are installing an additional microprocessor in microprocessor socket 3 or 4, you must also install a VRM. 8. If necessary, install a VRM in the connector. a. Open the retaining clips on each end of the VRM connector. b. Turn the VRM so the keys align with the slot. c. Insert the VRM into the connector by aligning the edges of the VRM with the slots at the end of the VRM connector. Firmly press the VRM straight down into the connector by applying pressure on both ends of the VRM simultaneously. The retaining clips snap into the locked position when the VRM is seated in the connector. Chapter 4. Removing and replacing server components 57

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To
install
a
microprocessor
tray
and
a
microprocessor,
complete
the
following
steps:
1.
Lift
the
microprocessor-release
lever
to
the
fully
open
position
(approximately
135°
angle).
Lever closed
Lever fully
open
Attention:
To
avoid
bending
the
pins
on
the
microprocessor,
do
not
use
excessive
force
when
pressing
it
into
the
socket.
2.
Position
the
microprocessor
over
the
microprocessor
socket
as
shown
in
the
following
illustration.
Carefully
press
the
microprocessor
into
the
socket.
Microprocessor
orientation indicator
Microprocessor-
release lever
Microprocessor
connector
Microprocessor
3.
Close
the
microprocessor-release
lever
to
secure
the
microprocessor.
4.
Make
sure
that
the
heat-sink
retaining
clip
is
open.
5.
If
you
are
installing
a
new
heat
sink,
remove
the
cover
from
the
bottom
of
the
heat
sink.
If
you
are
reinstalling
a
heat
sink
that
was
previously
removed,
go
to
“Thermal
grease”
on
page
58
for
instructions
on
replacing
the
contaminated
or
missing
thermal
grease;
then,
return
here
and
continue
step
6.
6.
If
necessary,
remove
the
cover
from
the
bottom
of
the
heat
sink.
7.
Position
the
heat
sink
above
the
microprocessor;
then,
press
the
heat
sink
into
place
and
close
the
heat-sink
release
lever.
Note:
If
you
are
installing
an
additional
microprocessor
in
microprocessor
socket
3
or
4,
you
must
also
install
a
VRM.
8.
If
necessary,
install
a
VRM
in
the
connector.
a.
Open
the
retaining
clips
on
each
end
of
the
VRM
connector.
b.
Turn
the
VRM
so
the
keys
align
with
the
slot.
c.
Insert
the
VRM
into
the
connector
by
aligning
the
edges
of
the
VRM
with
the
slots
at
the
end
of
the
VRM
connector.
Firmly
press
the
VRM
straight
down
into
the
connector
by
applying
pressure
on
both
ends
of
the
VRM
simultaneously.
The
retaining
clips
snap
into
the
locked
position
when
the
VRM
is
seated
in
the
connector.
Chapter
4.
Removing
and
replacing
server
components
57