Liquid Cooling | 液體冷卻

  • 液體冷卻是什麼?
    液冷技術(Liquid Cooling)顧名思義就是以液體作為熱量傳導機制的散熱方式,市場上常見的有沉浸式液冷和直接液冷兩種方式,前者是以不導電的特殊電子工程液最為熱傳導媒介,將機器直接浸泡在液體裡進行散熱;後者則是利用水管輸送冷卻液體在伺服器中走一圈,透過導熱銅片將熱能帶走降溫,變熱的液體循環到外部後再轉換為冷卻液體或是蒸氣繼續循環利用。

  • 為何需要?
    液體相較於傳統空氣冷卻熱傳導方面更有效率,故常常使用在一些高速運作發熱量較高的機器上,尤其是資料中心、或是進行大量運算的人工智慧伺服器當中。相較於空冷需要風扇協助散熱,去除風扇模組和省卻熱流設計得到的空間提升,便可大幅度的增加CPU、GPU密度,在有限空間中增加更多的運算效能,降低能耗的同時就表示可以得到更好的PUE

  • 技嘉的特色
    技嘉與合作夥伴提出了多樣性的伺服器冷卻解決方案,從單相式油冷到雙相式浸沒式液冷,到直接水冷,針對不同客戶都能夠提供最符合使用者需求的冷卻方案,在太空中心的案例中就使用了DLC(Direct Liquid Cooling)直接水冷的解決方案,運用超融合基礎架構伺服器(HCI)系列中的H261-Z60。該系統中的最大運算量,相較目前市場上其他高密度伺服器產品,多了兩倍效能,可使數據中心的使用面積減少50%,在有限空間內滿足航太中心的高運算及高速儲存需求,並採用 CoolIT水冷設備,為航太中心設計出絕佳的機房冷卻解決方案。

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