操作步骤：
1. 插入BIOS升级盘冷启动。
2. 进入POST/BIOS Update Utility Version 2.12 .
---显示:Press ESC to cancel ; Press Enter to continue.按Enter.
3. Select language : United states.
4. 显示 The carrent Serial Number in your mahine is : 909312x would you like to update the Serial Number?「Y/N」选择N.
5. 显示The Current Machine type /model in your machine is:864410U would you like to update the Machine Type/Model?「Y/N」选择N.
6. 显示 Do you want enhanced security to remain enable?「Y/N」选择N
7. 显示Reading the Flash image $IMAGENN.USF.
8. would you like to change the logos displayed during startup?「Y/N」选择N.
9.更新BIOS进程.
10.显示 POST/BIOS update complete. Remove the diskette from drive and press Enter to restart the system.
重新启动计算机，完成升级
注：其中第6步应引起注意，如这步选择‘Y’，则会有不能修改BIOS设置的现象。