execute it.
5) Execute system file Command.com.
6) If Autoexec.bat file exists, then execute it.
7) Read Windows initialization files “System.ini” and “Win.ini” and read registry file.
8) The starting process ends, initialization interface appears and operation system runs. During this process, ROM BIOS on motherboard would check whether there’s some hardware abnormal, including hardware failure, cable connection, card installation and others. If errors occur, then there’s nothing showed. And the machine stops starting. And for this situation, it’s quite likely to be hardware problem.

II. System boot sequence
1) Set PC power on—monitor, keyboard, and the light on main case flashes.
2) Check graphic card—transitory graphic card information show on screen.
3) Check up memory—following with beep sound, memory capacitance information show on the screen.
4) Execute BIOS—summary BIOS information appears on screen.
5) Check other devices—information of other devices would appear (like CPU, HDD and MEM…)
6) Execute OS initialization file—Starting Windows system.

III. Sound is made from motherboard when starting, with the sound, we could judge the error.
   According to different motherboards, the sound would be different.
   AMI BIOS: 1 short, memory refreshing fails; 2 short, memory checkout error; 3 shorts, basic memo