主板南桥和I/O组成的开机电路原理

Southbridge and I/O Consisting of Power Circuit

主板的组成一般可以分为6大电路,开机电路是其中之一,也是非常重要的部分.南桥和I/O参与开机的电路,都会因I/O的型号不同而有差异.只要掌握了由南桥和I/O组成的开机电路的原理,就可根据其原理示意图排查不能开机的主板的原因,进而快速准确地排除故障.

Mainboard can generally be divided into six circuits,the boot is one of the circuits,and also a very important part.South Bridge and I/O circuits are based on the I/O models differ.Once you master the principle of the Southbridge and I/O circuit composed of the boot circuit,you will find the reason of the mainboard cann＇t boot according to the schematic diagram of the principle,and then troubleshoots purposes quickly and accurately.