优化 AI 基础设施：OCP 母线供电在 GPU 模块和全机架服务器设计中的优势.pdf

1、Empowering AI Performance:Benefits of OCP Busbar Power delivery in GPU modules for AI Servers 2024-2025 All RESERVED-NO COPY AND DISTRIBUTION WITHOUT PERMISSIONVincent Chen,Executive Director,Pegatron Corp.Oct 15 1:43-1:58 PM PDT 2024-2025 All RESERVED-NO COPY AND DISTRIBUTION WITHOUT PERMISSIONMoti

2、vationDesigned to maximize GPU density and power efficiency,our 51OU ORv3 rack integrates up to 128 GPUs powered by a 1900A busbar.Combining Pegatrons optimized rack design with high-performance power distribution,this architecture delivers superior compute utilization,thermal balance,and scalabilit

3、y for next-generation AI workloads.Per Rack:-8 x AS501-4A1-16I1 with 128 x AMD InstinctTMMI355X GPUs-1 x Leakage detection management-Coolant type:PG25(BP)-Total Rack Power:162.4kW-380-480Vac,3W+N+PE-8x 33kW Power Shelf-Weight:1691kg(3728 lbs)-Dimension WxHxD:600 x 2616 x 1265 mm(23.62 x 103 x 49.8

4、inch)Leakage detecting tray2 x Systems4 x Power shelves4 x Power shelves2 x Systems4 x SystemsLeakage detecting system&tray1900A ORv3 Power BusbarRear Manifold51OU Rack Configuration128AMD InstinctTMMI355X GPUs32 AMD EPYCTM9005 Processors 2024-2025 All RESERVED-NO COPY AND DISTRIBUTION WITHOUT PERMI

5、SSIONSystem OverviewAMD InstinctTMMI355X/MI325X 8-way Baseboard2OU1OU2OU5OUGPU Chassis(8x AMD InstinctTMMI355X GPUs)GPU Chassis(8x AMD InstinctTMMI355X GPUs)CPU Chassis(4x AMD EPYCTM9005 Processors)System Front View805.6mm537mm92.3mm2U2U1U2U GPU Server ISO VIEW1U Compute Server ISO VIEW5U Chassis Ov

6、erall View System ISO View-2U Chassis Dimension:805.6mm(L)*537mm(W)*92.3mm(H)-1U Chassis Dimension:805.6mm(L)*537mm(W)*46mm(H)-System Weight:1U L10:32kg,2U L10:38kg,Total:108kg 2024-2025 All RESERVED-NO COPY AND DISTRIBUTION WITHOUT PERMISSIONBlock DiagramSyst