How to Recover Bois data

A. The use of root zone BOIS (Boot-block BOIS) is based mostly on award today.

Bois is the abbreviation for the basic input/output system. Bois is a system containing software that determines the basic function of a machine before the computer has access to the disk program. In the case of PCs, Bois contains code to control the keyboard, display screens, disk drives, serial communications devices, and many other features. Generally, the ROM chip (so usually called Rom BOIS) that is stored on the motherboard BOIS the general availability of BOIS and is not corrupted by disk errors. It also ensures that the machine can be started. Because RAM is faster than ROM, many machine manufacturers design Bois that can be copied from ROM to ram when the machine is started, a technique called shadowing. Bois's motherboard has a root zone bois, which is a small part of the Bois that will be overwritten when upgrading Bois. It only supports very basic hardware such as: floppy disk and so on. If your video card is PCI, your screen will be dark after the Bois is damaged because the root zone Bois only supports the ISA video card. The root zone Bois can perform Autoexec.bat on a bootable floppy disk. This allows us to place the award flasher and the correct Bois file (*.bin) on a floppy disk and add Autoexec.bat escalation commands to Bois.

　　Two. Get a new Bois chip

1. Contact the motherboard manufacturer to see if they can provide Bois chips. Some manufacturers are provided free of charge.

2. Contact a computer company that sells related chips, such as Unicore Software (http://www.unicore.com/) or Midco Computers (formerly RC Systema, http:// www.midcocomputers.com/). Here's an ad for Midco: "We offer bois replacement chips to the public." Please visit www.midcomputers.com and we will be happy to help you. ”

　　Three. Heat exchange

Note: This method is risky, please use it carefully (user risk is at your peril).

Replace the current damaged chip with another Bois chip that can be used normally, while the motherboard of the normal Bois chip must be as consistent as possible with the damage. In the normal chip machine first "System BOIS cache Able" set to enable, into the DOS, the normal chip unplug, with the damage of the chip to replace, and then correctly upgraded BOIS can be.

Note: It is recommended that you use the Mrbois to read and write programs their products have the best reputation. can access ftp://ftp.mrbioa.com to find relevant software.

　　Four. Methods applicable to Intel motherboards

Put the flash recovery jumper in the position of recovery mode, put the bootable Bois upgrade floppy disk into, and start the machine.

Because the not covered root zone Bois does not support the PCI video card at this time there is nothing on the screen. Can be observed by the sound of sirens and floppy led. The system is upgrading Bois when the machine rings and the LED on the floppy disk is lit. When the floppy disk LED lights out, the recovery is complete, shutdown. Restore the jumper to the default location and reboot to resume.

In addition to the above methods, we can also use the more familiar debug to restore the Bois of the factory value, as follows:

1. For Ami/award BOIS:

C:debug (in pure DOS, not Windows DOS window)

-0 17-0 Q 2.

For Phoenix BOIS

C:/debug (in pure DOS, not Windows DOS window)