PCIe5.0 顯卡是超級電老虎!供電最高675W - 3C
By Jack
at 2022-03-03T19:33
at 2022-03-03T19:33
Table of Contents
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有關下一代PCIe 5.0顯卡將引入全新16針(或者說12+4針)
我們已經講了不少次,華碩、酷冷、技嘉、微星也都陸續發佈了配備新介面、新電源線(
轉接線)的電源產品。
現在,PCIe 5.0顯卡供電的官方標準規範,終於洩露了一部分出來。
新標準的官方名為“12VHPWR”,非常拗口,也是導致產品命名混亂不規範的根源。
我們知道,PCIe x16插槽的供電能力是75W,從未變過,PCIe 6針、8針輔助供電最高分別
是75W、150W。
到了PCIe 5.0的時代,根據新標準,12VHPWR 16針的供電電壓為12V
單個針腳電流最大9.2A,整體最大55A,最高穩定功率則有四個檔次
從低到高分別是150W、300W、450W、600W,具體會在接頭上明確標注,方便識別。
當然,16個針腳中只有12個是負責供電的,另外4個負責信號監視傳輸
屬於可選,但沒有它們就上不到600W,最多只能到450W。
如果再加上PCIe x16插槽本身的75W,PCIe 5.0顯卡可以獲得最高675W的供電支撐。
同時,標準還定義了兩個邊帶信號(sideband signal),分別叫Sense0、Sense1
全部接地的時候,才能達到600W的持續供電能力,系統啟動時供電為375W。
如果有任何一個非接地,持續和啟動供電功率就會逐級下降
450W、300W、225W峰值分別對應225W、150W、100W起步。
如果顯卡不監控此邊帶信號,則必須以最低的100W來啟動。
另外根據ATX 3.0電源標準,16針供電不相容現在的6/8針
因為無論是介面尺寸還是電流電壓,都不完全一樣,必須使用轉接。
消息稱,NVIDIA RTX 40系列會標配16針供電介面
但不知道像RTX 30 FE系列那樣僅限公版,還是非公版也會支援。
還有說法稱RTX 3090 Ti會首發新介面,但這個卡皇命運多舛
已經推遲到不知道什麼時候。
https://news.mydrivers.com/1/817/817992.htm
裝機基本款 1000W 是必須的
烏鴉圖已非開玩笑
無心插柳柳橙汁
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3C
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