在COMPAQ、AST、HP等一些品牌微机里,为了防止由于接插件的原因引起的故障,采用把各单一功能部件,诸如盘控卡、串、并接口等集成到主机板上,用以提高整机的可靠性,这里我们统称它们为大板结构的微机。在这种结构的微机里,某一功能部分发生故障,整个系统会产生缺陷,从而影响机器的正常运行。例如,因用户带电插拔打印机电缆插头而造成主机板并行接口电路损坏,这些大板结构的主板大多采用超小型元器件平面焊接技术,要想用更换元器件的方法来排除 In some brands such as COMPAQ, AST, HP and other brands, in order to prevent the failure caused by the connector, the use of the single function components, such as disk control card, serial and interface integrated into the motherboard, to improve the whole Machine reliability, here we collectively referred to them as a large panel structure of the computer. In this structure of the computer, a functional part of the failure, the entire system will have defects, thus affecting the normal operation of the machine. For example, because the user plugged and unplugged the printer cable plug the motherboard parallel interface circuit damage, these large-size motherboard structure most of the small components with flat welding technology, in order to exclude the replacement of components to exclude