In fact, it is not even necessaryfor a video card to be connected for this procedure to work. Inother words, you will see nothing onscreen. Install the bootable BIOS upgrade disk that you previously created toperform the flash upgrade into drive A, and reboot the system.īecause of the small amount of code available in the unerasable flashboot block area, no video prompts are available to direct the procedure.

Virtuallyall Intel motherboards and many third-party motherboards have a jumper or switchfor BIOS recovery, which is normally labeled Recover/Normal. A minimum of a power supply, a speaker, and afloppy drive configured as drive A should be attached to the motherboard forthis procedure to work.Ĭhange the flash recovery jumper to the recovery mode position. Recovering from this conditionrequires the following steps. In the unlikely event that a flash upgrade is interrupted catastrophically,the BIOS might be left in an unusable state.

This hinges on a special unerasable part of theflash ROM that is reserved for this purpose. Most motherboards with soldered-in flash ROMs have a special BIOS recoveryprocedure that can be performed. However, if your system is still supported by BIOS updates from themanufacturer, you can order a BIOS replacement from BIOSWorld( ),a company that will download the system or motherboard maker's latest BIOSinto a replacement flash memory chip for about $30. Replacement BIOS chips are available from the BIOS upgrade sources listedearlier. If your BIOS is socketed, you will need to replace it with a compatible BIOSchip.

Use the BIOS recovery feature (available on many systems withsurface-mounted or soldered-in-place BIOS chips). Install a replacement BIOS chip (if the BIOS is located in a socketedchip). If your BIOS update procedure fails, your system will be useless until youreplace the BIOS code. Learn More Buy How to Recover from a Failed BIOS Update Procedure

How to uninstall bios update