Lenovo ThinkServer RD120 User Guide - Page 70

Heat-sink, filler, Microprocessor, Microprocessor-socket, cover

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Note: For simplicity, certain components are not shown in this illustration. 1 Heat sink 2 Heat-sink filler 3 Microprocessor 4 Microprocessor-socket dust cover Attention: v A startup (boot) microprocessor must always be installed in microprocessor connector 1 on the system board. v To ensure correct server operation when you install an additional microprocessor, use microprocessors that have the same cache size and type, front-side bus frequency, and clock speed. Microprocessor internal and external clock frequencies must be identical. To install an additional microprocessor, complete the following steps: 1. Read the safety information that begins on page v and "Installation guidelines" on page 29. 2. Turn off the server and disconnect all power cords and external cables (see "Turning off the server" on page 12). Attention: In a dc power environment, only trained service personnel other than Lenovo service technicians are authorized to connect or disconnect power to the dc power supply. See the documentation that comes with each dc power supply. 3. Remove the server cover (see "Removing the cover" on page 31). 56 ThinkServer RD120 Types 6444, 6445, 6446, and 6447: User Guide

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Note:
For
simplicity,
certain
components
are
not
shown
in
this
illustration.
±1²
Heat
sink
±2²
Heat-sink
filler
±3²
Microprocessor
±4²
Microprocessor-socket
dust
cover
Attention:
v
A
startup
(boot)
microprocessor
must
always
be
installed
in
microprocessor
connector
1
on
the
system
board.
v
To
ensure
correct
server
operation
when
you
install
an
additional
microprocessor,
use
microprocessors
that
have
the
same
cache
size
and
type,
front-side
bus
frequency,
and
clock
speed.
Microprocessor
internal
and
external
clock
frequencies
must
be
identical.
To
install
an
additional
microprocessor,
complete
the
following
steps:
1.
Read
the
safety
information
that
begins
on
page
v
and
“Installation
guidelines”
on
page
29.
2.
Turn
off
the
server
and
disconnect
all
power
cords
and
external
cables
(see
“Turning
off
the
server”
on
page
12).
Attention:
In
a
dc
power
environment,
only
trained
service
personnel
other
than
Lenovo
service
technicians
are
authorized
to
connect
or
disconnect
power
to
the
dc
power
supply.
See
the
documentation
that
comes
with
each
dc
power
supply.
3.
Remove
the
server
cover
(see
“Removing
the
cover”
on
page
31).
56
ThinkServer
RD120
Types
6444,
6445,
6446,
and
6447:
User
Guide