The server supports 16-Gbyte, 32-Gbyte, and 64-Gbyte DIMMs, with up to 4096 Gbytes in a server fully configured with two processor modules.
Each processor module can be either half populated (16 DIMMs) or fully populated (32 DIMMs).
Consider these population rules when installing, upgrading, or replacing DIMMs in a processor module:
In half-populated configurations, 16 DIMMs must be installed in all CH0 slots.
These slots have black ejector levers.
In fully-populated configurations (32 DIMMs), DIMMs must be installed in all slots (CH0 and CH1)
All DIMMs associated with each CMx must be identical (same size, same rank classification).
Mixed configurations are supported (DIMMs associated with CM0 with one size, and DIMMs associated with CM1 with a different size) as long as all DIMMs in the server have a supported rank classification. For example, 32 Gbyte 4Rx4 DIMMs associated with PM0/CM0, and 64 Gbyte 4Rx4 DIMMs associated with PM0/CM1.
To identify DIMM architecture, see Identifying DIMMs.