IBM xSeries 335, Option Installation Manual

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Installing a microprocessor
This section describes how to install a microprocessor in the server. Before you
install a microprocessor, review the following information:
v
The server comes with one microprocessor installed. The following illustration
shows the microprocessor sockets and the pluggable microprocessor 2 voltage
regulator module (VRM) slot on the system board. (The VRM for microprocessor
1 is integrated on the system board.)
Microprocessor 2
VRM slot (J42)
Microprocessor 2
LED (CR27)
Microprocessor 2
socket (U121)
Microprocessor 1
socket (U82)
Microprocessor 1
LED (CR28)
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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.
Chapter 2. Installing options
21