Intel S2600GZ S2600GZ/GL - Page 25

Product Architecture Overview There are two variations of the ILM: square and narrow. Intel® Server Board S2600GZ/GL TPS 80mm 94mm 80mm 56mm Figure 11. Processor Socket ILM Variations  The square ILM has an 80x80mm heat sink mounting hole pattern and is used on the Intel® Server Board S2600GL.  The narrow ILM has a 56x94mm heat sink mounting hole pattern and is used on the Intel® Server Board S2600GZ. Note: Processor heat sink solutions for the Intel® server boards S2600GL and S2600GZ are NOT the same. Care must be taken when selecting heat sinks for the given server board ensuring the screw layout pattern of the heat sink matches the screw hole pattern of the ILM. 3.1.2 Processor Population Rules Note: Although the server board does support dual-processor configurations consisting of different processors that meet the defined criteria below, Intel does not perform validation testing of this configuration. For optimal system performance in dual-processor configurations, Intel recommends that identical processors be installed. When using a single processor configuration, the processor must be installed into the processor socket labeled "CPU_1". When two processors are installed, the following population rules apply:  Both processors must be of the same processor family.  Both processors must have the same number of cores  Both processors must have the same cache sizes for all levels of processor cache memory. Processors with different core frequencies can be mixed in a system, given the prior rules are met. If this condition is detected, all processor core frequencies are set to the lowest common denominator (highest common speed) and an error is reported. Processors which have different Intel® Quickpath (QPI) Link Frequencies may operate together if they are otherwise compatible and if a common link frequency can be selected. The common link frequency would be the highest link frequency that all installed processors can achieve. Processor stepping within a common processor family can be mixed as long as it is listed in the processor specification updates published by Intel Corporation. 12 Revision 1.1 Intel order number G24881-004