• Minimum capacity:
– 16 GB using RDIMMs
– 128 GB using 3DS RDIMMs
• Maximum capacity:
– 2 TB using RDIMMs
– 4 TB using 3DS RDIMMs
• Type (depending on the model): TruDDR4 3200, dual-rank, 16 GB/32 GB/64 GB RDIMM
For a list of supported memory options, see:
https://static.lenovo.com/us/en/serverproven/index.shtml
Note: The operating speed and total memory capacity depend on the processor model and UEFI settings.
The following figure and table help you locate the memory slots and channels on the system board.
Figure 49. Memory module locations
136 ThinkSystem SR665 Maintenance Manual