Module and method for automatic restoring BIOS device

A BIOS module for automatic restoring a BIOS data, comprising a BIOS memory and a prime BIOS code embedded therein, wherein said prime BIOS code can load a backup BIOS code from other storage media to reboot a system successfully when the content of said BIOS memory is damaged, said BIOS code comprising:

• a function program module, having compressed function programs for providing a self-testing program and a Run-Time program after being decompressed;
• a detecting means for detecting the decompressing procedure of said function program module to determine if there is any error occurring;
• a restoring means responsive to said detecting means for automatic rebooting the system when there is an error occurring in said decompressing procedure to load and execute said backup BIOS code from said storage media, said restoring means also restore said backup BIOS code into said BIOS memory after the system is rebooted successfully;
• and
• a differentiating means for differentiating versions of said backup BIOS code and said prime BIOS code, if said prime BIOS code which can boot the system successfully has a latest version rather than that of said backup BIOS code, said prime BIOS code will be rewritten into said storage media for updating said backup BIOS code.

A method for detecting, restoring and backuping a BIOS code stored in a BIOS memory to load a backup BIOS code from other storage media to reboot a system when the content of said BIOS memory is damaged, said BIOS memory in which stored comprising a decompress module, a POST module and a Run-Time module, said method comprising the steps of:

• checking if contents of said decompress module are correct and setting the system into an automatic restoring mode when the contents of said decompress module are incorrect;
• performing decompressing procedures to decompress said POST module and said Run-Time module;
• detecting said decompressing procedures to determine if there is any error occurring;
• forcing the system to reboot again when there is an error in said decompressing procedures and to enter into the automatic restoring mode;
• loading said backup BIOS code from said storage media when the system is in the automatic restoring mode;
• executing said backup BIOS code to decompress and execute said POST module and said Run-Time module for rebooting the system;
• rewriting said backup BIOS code into said BIOS memory when the system is rebooted successfully in said automatic restoring mode;
• differentiating versions of said prime BIOS code and said backup BIOS code;
• restoring said prime BIOS code into said storage media when said prime BIOS code has a latest version rather than that of said backup BIOS code;
• and
• loading an operating system.