IBM 86594RY Hardware Maintenance Manual - Page 126
Microprocessors, Installing microprocessor upgrades
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Microprocessors When you install an additional microprocessor, the Netfinity 5000 can operate as a symmetric multiprocessing (SMP) server. With SMP, certain operating systems and application programs can distribute the processing load between microprocessors. This enhances performance for database and point-of-sale applications, integrated manufacturing solutions, and other applications. Installing microprocessor upgrades: The server comes with an Intel Pentium II microprocessor. This microprocessor incorporates MMX technology with built-in ECC level two (L2) cache. For the latest information about microprocessor upgrades available for the server, contact your IBM reseller, IBM marketing representative, or see http://www.ibm.com/pc/us/compat/ on the World Wide Web. If you do upgrade the microprocessor, use the instructions that come with the upgrade along with the instructions in "Installing or replacing a microprocessor" on page 119. Attention If you install an additional microprocessor that is different from the currently installed microprocessor, the server operation might be unreliable. To prevent this, use a microprocessor with the same internal and external clock speed, and the same cache size and voltage requirements as those of the currently installed microprocessor. Microprocessor internal and external clock frequencies and cache size must be identical. The voltage-regulator module (VRM) for the additional microprocessor plugs into a connector on the system board (see "System board connectors" on page 143 for the location of the VRM connector). Because each microprocessor has specific power and voltage requirements, be sure to use the VRM that comes with the microprocessor. Note: The voltage regulator function for the microprocessor that is shipped with the server is built into the system board. If you select a setting for the frequency switch that is greater than the actual frequency of the microprocessor, you might damage the microprocessor. The frequency switch settings are shown in Table 5 on page 123. 118 Netfinity Server HMM