Silicon Graphics Rackable C2108-TY10, User Manual

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Installing Memory
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Figure 5-8 Memory Block Diagram
Memory DIMM Rules
Use the following rules when installing memory DIMMs:
The minimum memory allowed on SGI Rackable C2108-TY10 cluster nodes is defined by
whether or not the compute nodes are diskless:
• Diskless compute nodes: 8GB per node memory minimum
• Diskful compute nodes: 4GB per node memory minimum
Memory DIMM Rules
• Populate the DIMMs in the furthest slot from the processor for channel 1, first. Then
channels 2 - 3.
• A minimum of one DIMM per processor must always be present - one for each processor.
• Mixing DIMM Sizes - When mixing DIMMs on a channel that has a mixed number of ranks,
it is recommended to have the total number of ranks on the channel be even to avoid
bandwidth degradation. Example: placing a single-rank DIMM and a dual-rank DIMM on
the same channel is not desirable. The total number of ranks would be three - an odd number
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