Recovering Bois Data

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

Bois is the abbreviation for the basic input/output system. Bois is a software system that is included in the system that determines the basic function of a machine before it has access to the program on the disk. In the case of PCs, the Bois contains code to control the keyboard, display screens, disk drives, serial communication devices, and many other features. Generally, BOIS the ROM chip stored on the motherboard (so often called Rom BOIS), ensuring the general availability of the BOIS and not being damaged by disk errors. It also ensures that the machine can be started. Because RAM is faster than ROM, many machine manufacturer-designed Bois can be copied from ROM to ram to run when the machine starts, and this technique is called shadowing. Bois's motherboard has root area bois, which is a small portion of Bois that will not be covered when upgrading Bois. It only supports very basic hardware such as floppy disks. If your video card is PCI, your screen will be dark once the Bois is damaged, because the root zone Bois only supports the ISA graphics 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 the floppy disk and add the Autoexec.bat Upgrade command to the Bois.

　　Two. Get the new Bois chip

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

2. Contact a computer company selling related chips, such as Unicore Software (http://www.unicore.com/) or Midco Computers (formerly RC Systema Company, http:// www.midcocomputers.com/). Here is an ad for Midco: "We provide the public with a Bois replacement chip." Please visit www.midcomputers.com and we will be happy to help you. ”

　Three. Heat exchange

Note: This method is risky and should be used with caution (the user is at their own risk).

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

Note: It is recommended to use Mrbois's read-write program their products have the best reputation. You can visit ftp://ftp.mrbioa.com to find relevant software.

　　Four. How to use the Intel motherboard

Put the flash recovery jumper in the recovery mode position, put the bootable Bois upgrade diskette in, and start the machine.

There is nothing on the screen because the root area that is not covered Bois PCI-capable graphics. Can be observed by whistle and floppy led. When the machine rings and then the LED on the floppy disk is lit, the system is upgrading Bois. When the LED light on the floppy disk is off, it indicates that the recovery is complete and shutdown. Restore the jumper to the default location and reboot to resume.

In addition to the above methods, you can also use our familiar debug to restore the Bois factory value, the method is as follows:

1. For Ami/award BOIS:

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

-0 17-0 Q 2.

For Phoenix BOIS

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