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Arucueid
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加入日期: Feb 2004
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在雙晶片架構下,北橋通常負責記憶體,AGP/PCI-E的控制,還有跟CPU的連接.
南橋則負責連接其他週邊,像是PCI, 音效, USB, IEEE 1394, IDE/SATA控制器,網路晶片等等
而記憶體不可能裝下一切所需的資料,所以只能裝一些比較重要的,其他則存放在硬碟

所以,當CPU 要讀取記憶體所沒有的資料,或是需要讓週邊執行工作時, 資料都要經過南北橋匯流排,
在單一工作時也許夠用,但是如果是大量的工作呢?
越大的匯流排頻寬可以減少資料等待的時間,在一個週期裡更快的傳遞資料, 自然的就能提升效能

所以為何Intel要在 865/875 晶片組加上CSA, 把網路晶片掛在北橋,以減少南北橋匯流排的負擔
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Cain was the first man ever to strike down another... and when the Lord came to him and said ‘What have you done!?’, Cain could not hide his crime. For the voice of his brother’s blood cried out from the very ground

The world has been your battlefield, everywhere you go. The blood of brothers and sons screams out against you. Perhaps you cannot yet hear it, because the soil is not your own, but you will... you will
舊 2005-11-23, 06:45 AM #6
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