Method for booting computer system with basic input-output system memory and structure thereof

A method for initiating a computer system by a basic input-output system memory, wherein said basic input-output system memory comprises a first basic input-output system and a second basic input-output system, and said computer system comprises said basic input-output system memory, a first system bus data, a second system bus data and a control circuit, comprising steps of:

• a) reading said first basic input-output system by said control circuit in response to said first system bus data;
• b) determining whether said computer system can be initiated;
• and
• c) if not, initiating said computer system after reading said second basic input-output system by said control circuit in response to said second system bus data.

A structure for initiating a computer system, comprising:

• a control circuit located in said computer system;
• and
• a basic input-output system memory having a first basic input-output system and a second basic input-output system, located in said computer system and electrically connected to said control circuit,
• wherein said control circuit is used to initiate said computer system by reading said first input-output system, and to initiate said computer system by reading said second input-output system while failing to initiate said computer system by reading said first input-output system.