| With
motherboards that use "Boot Block Bios" it is
possible to recover a corrupted bios because
the boot block section of the bios, which is
responsible for booting the computer remains
unmodified. When an AMI bios becomes corrupt
the system will appear to start, but nothing
will appear on the screen, the floppy drive
light will come on and the system will access
the floppy drive repeatedly. If your motherboard
has an ISA slot and you have an old ISA video
card lying around, put he ISA video card in
your system and connect the monitor. The boot
block section of the bios only supports ISA
video cards, so if you don't have an ISA video
card or your motherboard does not have ISA slots,
you will have to restore your bios blind, with
no monitor to show you what's going on.
AMI
has integrated a recovery routine into the
boot block of the bios, which in the event
the bios becomes corrupt can be used to restore
the bios to a working state. The routine is
called when the system block of the bios is
empty.
The
restore routine will access the floppy drive
looking for a bios file named AMIBOOT.ROM,
this is why the floppy drive light comes on
and the drive spins. If the file is found
it is loaded into the system block of the
bios to replace the missing information.
To
restore your bios simply copy a working bios
file to a floppy disk and rename it AMIBOOT.ROM,
then insert it into the computer while the
power is on. The disk does not need to be
bootable or contain a flash utility. After
about four minutes the system will beep four
times. Remove the floppy disk from the drive
and reboot the computer.
The
bios should now be restored. |
