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长城286、386以及PC-AT、AST286、ALR286等,286、386系列微机的系统板上,都安装一块RT/CMOS芯片,该芯片用6V后备电池支持,系统借助该芯片保存日历、时间和系统配置等常用数据信息。开机时,BIOS中的自检程序读取这些信息,并根据这些信息对各模块初始化。当替换后备电池、后备电池故障、更换硬盘或因故障更换RT/CMOS芯片后,都要运行SET-UP程序,重新设置系统配置。其中内存容量、显示方式和软驱类型都较易确定;因为对硬盘类型的确定不一致,硬盘类型很难确定。通过分析286的BIOS,笔者发现要正确确定硬盘类型,必须:1.确定硬盘参数。2.确定这个硬盘参数与你使用的机器规定的哪一类型硬盘参数一致。
Great Wall 286,386 and PC-AT, AST286, ALR286, etc., 286,386 series of micro-computer system board, install a RT / CMOS chip, the chip with 6V backup battery support, the system uses the chip to save the calendar, time and system Configuration and other common data information. At boot time, the self-test program in the BIOS reads this information and initializes each module based on this information. When replacing the backup battery, the backup battery fails, replace the hard disk or replace the RT / CMOS chip due to a fault, run the SET-UP program to reset the system configuration. Which memory capacity, display and floppy drive types are easier to determine; because of the determination of the type of hard disk inconsistencies, the hard disk type is difficult to determine. By analyzing the 286 BIOS, I found that to correctly determine the type of hard disk, you must: 1. Determine the hard disk parameters. 2. Determine which hard drive parameters are consistent with the type of hard drive parameters specified by the machine you are using.