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LPU液冷、Rubin液冷的TIM材料
傅里叶的猫· 2026-03-01 15:30
Group 1 - The article discusses the ongoing developments in liquid cooling technology, particularly focusing on LPU and LPX rack designs that utilize liquid cooling systems [1][2]. - According to JPM's estimates, a single LPU/LPX rack will incorporate 256 cold plates and over 800 quick disconnects (QDs) [2]. - The average selling price (ASP) of cold plates is above $300, while the ASP for QDs exceeds $20, indicating significant market potential beyond existing GB/VR rack cooling solutions [3]. Group 2 - Rubin's TIM (Thermal Interface Material) has been upgraded to a "micro-channel cold plate" design, which is essential for the high power consumption of Rubin GPUs [4]. - Traditional thermal grease is inadequate for heat transfer in Rubin GPUs, leading to the use of liquid metal indium in the TIM2 layer, which requires gold plating on cold plates to prevent corrosion [4]. - The internal micro-channel spacing of cold plates has been reduced from 150 microns to 100 microns to enhance heat dissipation [4]. Group 3 - TIM2 materials are newly introduced in the Rubin series, creating a new market opportunity compared to the Blackwell series [5]. - Companies like 科创新源 are supplying TIM2 materials to NVIDIA, with market share expected to grow as Rubin production increases [5]. - 德邦's 泰吉诺 is also transitioning to supply TIM2 materials after previously providing TIM1 materials to NVIDIA [5]. Group 4 - Each complete cabinet contains 256 LPU chips distributed across 32 trays, with each tray equipped with 8 cold plates and 24+2 QDs [7]. - Recent updates to the daily reports include comprehensive summaries of news from major outlets and insights from analysts across various industries, including liquid cooling [6][8].