IBM 8676 Hardware Maintenance Manual - Page 63

Notes, Attention

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Microprocessor 2 VRM slot (J42) Microprocessor 2 LED (CR27) Microprocessor 2 socket (U121) Microprocessor 1 LED (CR28) Microprocessor 1 socket (U82) v If one microprocessor is installed: - The microprocessor is installed in microprocessor socket 1 (U82). - The microprocessor supports both the startup and application processes. v If you install a second microprocessor in the server: - The server operates as a symmetric multiprocessing (SMP) server. With an SMP, operating system application programs can distribute the processing load between the microprocessors. This enhances performance for database and point-of-sale applications, integrated manufacturing solutions, and other applications. - Microprocessor 1 is installed in microprocessor socket 1 (U82); microprocessor 2 is installed in socket 2 (U121). Notes: 1. Read the documentation that comes with the microprocessor to determine if you need to update the basic input/output system (BIOS) code. The most current level of BIOS code for the server is available through the World Wide Web at http://www.ibm.com/pc/support/. 2. To use SMP, obtain an SMP-capable operating system (optional). For a list of supported operating systems, go to http://www.ibm.com/pc/us/compat/ on the World Wide Web. Attention: To avoid damage and to ensure proper server operation, review the following information before you install a microprocessor: v Ensure that the microprocessors are the same type, have the same cache size, and have the same clock speed. v Ensure that the microprocessor internal and external clock frequencies are identical. v See the ServerProven list at http://www.ibm.com/pc/compat/ for a list of microprocessors supported by the server. A new microprocessor comes in a kit with a VRM and a heat sink. Complete the following steps to install a microprocessor: Chapter 4. Customer replaceable units 53

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Microprocessor 2
VRM slot (J42)
Microprocessor 2
LED (CR27)
Microprocessor 2
socket (U121)
Microprocessor 1
socket (U82)
Microprocessor 1
LED (CR28)
v
If
one
microprocessor
is
installed:
–
The
microprocessor
is
installed
in
microprocessor
socket
1
(U82).
–
The
microprocessor
supports
both
the
startup
and
application
processes.
v
If
you
install
a
second
microprocessor
in
the
server:
–
The
server
operates
as
a
symmetric
multiprocessing
(SMP)
server.
With
an
SMP,
operating
system
application
programs
can
distribute
the
processing
load
between
the
microprocessors.
This
enhances
performance
for
database
and
point-of-sale
applications,
integrated
manufacturing
solutions,
and
other
applications.
–
Microprocessor
1
is
installed
in
microprocessor
socket
1
(U82);
microprocessor
2
is
installed
in
socket
2
(U121).
Notes:
1.
Read
the
documentation
that
comes
with
the
microprocessor
to
determine
if
you
need
to
update
the
basic
input/output
system
(BIOS)
code.
The
most
current
level
of
BIOS
code
for
the
server
is
available
through
the
World
Wide
Web
at
2.
To
use
SMP,
obtain
an
SMP-capable
operating
system
(optional).
For
a
list
of
supported
operating
systems,
go
to
on
the
World
Wide
Web.
Attention:
To
avoid
damage
and
to
ensure
proper
server
operation,
review
the
following
information
before
you
install
a
microprocessor:
v
Ensure
that
the
microprocessors
are
the
same
type,
have
the
same
cache
size,
and
have
the
same
clock
speed.
v
Ensure
that
the
microprocessor
internal
and
external
clock
frequencies
are
identical.
v
See
the
ServerProven
list
at
for
a
list
of
microprocessors
supported
by
the
server.
A
new
microprocessor
comes
in
a
kit
with
a
VRM
and
a
heat
sink.
Complete
the
following
steps
to
install
a
microprocessor:
Chapter
4.
Customer
replaceable
units
53