Q: What is required to enable Intel TDX on the OpenMetal Medium v4?
Enabling Intel TDX on the OpenMetal Medium v4 requires three things: a RAM upgrade to 1 TB (16 x 64 GB DIMMs), full DDR5 memory channel population across both CPU sockets, and BIOS configuration performed by OpenMetal.
The Intel Xeon Silver 4510 supports TDX in silicon, but activates it only when all 8 DDR5 memory channels per socket are in use. The standard Medium v4 populates 4 channels per socket with 4 x 32 GB DIMMs (256 GB total). Upgrading to 8 x 64 GB DIMMs per socket fills all 16 slots and brings total system memory to 1 TB — the minimum required for TDX activation on this platform. As a side effect, the upgrade doubles aggregate memory bandwidth from approximately 282 GB/s to approximately 563 GB/s, since all channels become active.
After the physical RAM replacement, TDX is enabled through BIOS configuration. OpenMetal handles this as part of the upgrade — customers do not configure it independently. Intel SGX shares the same channel-population prerequisite on the Silver 4510, so both technologies activate together through the same single upgrade.
Contact OpenMetal Support to schedule the upgrade on a deployed server, or request a Medium v4 with 1 TB pre-installed at order time.
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