BIOS RECOVERY STEP -  
User can recover the BIOS by using USB key.   
1. Format the USB key the format need be FAT32 
2. Add the recovery BIOS rom file into the USB key.   
    (The rom file must named AMI.rom) 
3. Insert the USB key to the PC USB port. 
4. Press Ctrl + home, don't release. 
5. Power on the PC. 
6. The system will boot into the BIOS page. 