HP Vectra VE C/xxx 7 HP Vectra VE C/xxx Series 7 PC - Upgrade and Maintenance - Page 90
Recovering from a BIOS Update Failure
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4 Troubleshooting Your PC Recovering from a BIOS Update Failure Recovering from a BIOS Update Failure If you attempt to update (flash) the BIOS in your PC and the update fails, perhaps due to a bad ROM image or a power failure during the update process, the PC will be left with a corrupted BIOS. To recover from this situation, you need to use the BootBlock procedure. What is BootBlock? CAUTION BootBlock is an area of the BIOS memory that is not erased during a standard BIOS update. It contains a minimal set of commands that bypass the normal boot procedure and "jump" directly to booting from the floppy disk. You should not use the BootBlock procedure as the normal method of updating the BIOS. Use it only as a recovery process. BootBlock is loaded during manufacturing, and should never be updated. Using the BootBlock feature To recover from a faulty BIOS you need to use a floppy disk containing the BIOS file HS0x0x.ROM, but renamed to AMIBOOT.ROM (you need to rename the file yourself). To activate the BootBlock crisis recovery procedure: 1 Disconnect the computer's power supply cord and any connection to a telecommunications network. 2 Remove the computer's cover. 3 Set system board switches 5 (Clear CMOS) and 6 (Clear Passwords) to the On position. 4 Replace the cover and power cord. 5 Insert the floppy disk into the floppy disk drive. 80 English
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