IBM LS41 User Guide - Page 39
Installing, additional, microprocessor
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Installing an additional microprocessor The blade server comes with at least one microprocessor. If the blade server comes with one microprocessor, you can install an additional microprocessor in the second microprocessor socket. If an MPE is installed, the blade server must have two microprocessors installed before the microprocessors on the MPE will become active. Additional microprocessors can be installed in the MPE. The blade server operates as a symmetric multiprocessing (SMP) server. With SMP, certain operating systems and application programs can distribute the processing load between the microprocessors. Note: If you install an additional microprocessor, you must install the same microprocessor type, speed, and power specifications as the first microprocessor. To use SMP, obtain an SMP-capable operating system. For a list of supported operating systems and other options, go to http://www.ibm.com/servers/eserver/ serverproven/compat/us/. The following notes describe the type of microprocessor that the server supports and other information that you must consider when installing a microprocessor: v Always install microprocessors that have the same cache size and type, the same clock speed, electrical specifications, and identical internal and external clock frequencies (including system bus speed). v Make sure that the microprocessor with the lowest feature set is the startup (bootstrap) microprocessor, which is installed in the microprocessor 1 socket (J244). v For a list of microprocessors that the blade server supports, go to the ServerProven list at http://www.ibm.com/servers/eserver/serverproven/compat/us/. v Before installing a new microprocessor, download and install the most current level of BIOS code, from http://www.ibm.com/bladecenter/. v The microprocessors terminate themselves; therefore, no terminator card is required if microprocessor socket 2 is empty on the blade server or on the MPE. However, for proper airflow, this socket must contain a microprocessor heat-sink filler, sometimes called a microprocessor baffle. v The microprocessor speeds are automatically set for this server; therefore, you do not have to set any microprocessor frequency-selection jumpers or switches. The following illustration shows how to install the second microprocessor on the system board for the blade server and also applies to the MPE. Chapter 3. Installing options 27