卸掉机盖螺丝,打开机箱盖2.在前面板上单片机的旁边找到J4插针(标示有Password Clear或Password Reset字符)3.用跳线块将J4插针的1,2腿(靠近电阻R5)置于短路状态4.接上主机电源输入,开启主机电源,启动主机