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Technical Dialogue

Datacenter/Telecom Power Architecture and System Considerations

D26.6 - Server Motherboard Power Performance Study Under Immersion Cooling Environment

Thursday, March 20, 2025
11:30 AM – 1:30 PM ET
Location: Level One, Hall A3
This paper deeply researched power performance impact on a single-phase immersion cooling two socket server system, included motherboard and system level performance comparison analysis between air and immersion cooling.It is shown from study result that, compare with air cooling, server motherboard in immersion cooling can achieve 4.7% reduction of dc resistance of CPU core power delivery path (Rpath); 0.68% increasement of CPU VCCIN voltage regulator (VR) efficiency and 15W+ input power saving per one socket stressing; server system can achieve up to 106W input power saving; which can greatly improve datacenter energy efficiency. Meanwhile, thermal study indicates most components in sever system are no more than 50°C, which significantly drives sever motherboard power design optimization, by capacitor cost down investigation, it can help cost saving around $20 per board, which greatly help total cost of ownership (TCO) of datacenter and improve product competitiveness.