Maximum RAM in the OpenMetal Medium v5 Bare Metal Server

Q: What is the maximum RAM in an OpenMetal Medium v5 bare metal server?

The OpenMetal Medium v5’s standard stocked maximum is 1 TB of DDR5-6400 ECC RDIMM (16x 64 GB, all 16 slots); up to 4 TB is possible with special-order 256 GB RDIMMs; the base configuration ships with 8 slots populated at 256 GB (8x 32 GB), and capacities above 1 TB require special-order 256 GB RDIMMs (up to a 4 TB platform ceiling).

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Three upgrade levels are available above the 256 GB base: 512 GB (16x 32 GB, all slots filled) and 1 TB (16x 64 GB), the stocked maximum; capacities above 1 TB use special-order 256 GB RDIMMs (up to 4 TB). The 1 TB level is significant beyond raw capacity: it is the minimum configuration required to activate Intel TDX confidential computing on the Xeon 6505P platform. Reaching 1 TB also requires replacing the eight base 32 GB modules: a full DIMM swap, not a slot-fill.

The practical RAM threshold depends on workload type. In-memory databases (Redis, MySQL with large InnoDB buffer pools, ClickHouse) exhaust 256 GB quickly at medium-scale deployments. Proxmox and KVM virtualization hosts consolidating 20-plus VMs typically benefit from 512 GB or more. CPU-based ML inference with large transformer models (70B+ parameters) requires 1 TB or above to hold model weights fully in RAM without swap.

RAM upgrades on deployed Medium v5 servers are handled by contacting the OpenMetal team.