主板的核心是主板芯片組，它決定了主板的規(guī)格、性能和大致功能。我們平日說(shuō)“865PE主板，865PE指的就是主板芯片組。如果說(shuō)CPU是整個(gè)電腦系統(tǒng)的心臟，那么芯片組將是整個(gè)系統(tǒng)的軀干。對(duì)于主板而言，芯片組幾乎決定了這塊主板的功能，進(jìn)而影響到整個(gè)電腦系統(tǒng)性能的發(fā)揮，芯片組是主板的靈魂。芯片組性能的優(yōu)劣，決定了主板性能的好壞與級(jí)別的高低這是因?yàn)镃PU的型號(hào)與種類(lèi)繁多、功能特點(diǎn)不一，芯片組如果不能與CPU良好地協(xié)同工作，將嚴(yán)重地影響計(jì)算機(jī)的整體性能，甚至不能正常工作。
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