目前,国内尚有许多AT主板结构的微机,这些微机配置较早,使用时间较长,有的已经出现硬件故障,其中电源的故障率较高。有的电源因缺件等原因无法修理而必须更换,由于目前微机普遍使用ATX主板和与之相应的ATX电源,AT主板和与之相应的AT电源已逐渐退出市场,有的地方可能难以买到新的AT电源,而市场上旧的AT电源往往功率偏小,可靠性得不 At present, there are still many domestic AT motherboard microprocessor, these computers configured earlier, use a longer time, and some hardware failures have occurred, of which the power failure rate higher. Some power supply can not be repaired due to lack of components and other reasons must be replaced due to the prevalence of microcomputer ATX motherboard and the corresponding ATX power supply, AT motherboard and the corresponding AT power supply has gradually withdrawn from the market, some places may be difficult to buy The new AT power supply, while the old AT power supply on the market tends to be small power, reliability not