BREAKING NEWS: NVIDIA HAS JUST OPEN SOURCED THEIR RUBIN NVSWITCH TRAY BoM & DIAGRAM & IT INCLUDES AMD EYPC 3151 …

SemiAnalysis Twitter · SemiAnalysis (@SemiAnalysis_) · 2026-06-05

NVIDIA has open sourced the bill of materials and schematic for its Rubin NVSwitch Tray, revealing that each tray uses an AMD EPYC 3151 embedded CPU — meaning nine AMD CPUs per VR200 rack.

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Appears in

NVIDIA Launches Vera CPU and Vera Rubin NVL72 at COMPUTEX / GTC Taipei

Extraction

Topics: nvidia-rubinai-hardwaresemiconductor-industrydata-center-infrastructure

Claims

NVIDIA open sourced the Rubin NVSwitch Tray bill of materials and circuit diagram.
The Rubin NVSwitch Tray design incorporates an AMD EPYC 3151 embedded CPU.
Each VR200 rack contains nine NVSwitch Trays, resulting in nine AMD embedded CPUs per rack.
NVIDIA's flagship AI rack hardware depends on AMD silicon, revealing unexpected cross-vendor integration.

Key quotes

NVIDIA HAS JUST OPEN SOURCED THEIR RUBIN NVSWITCH TRAY BoM & DIAGRAM & IT INCLUDES AMD EYPC 3151 EMBEDDED CPU.

Since there is 9 NVSwitch Trays Per VR200 Rack, that is 9 small AMD embedded CPUs per NVIDIA rack.