Re: [fb-u] flashing bios in DOS, sis 730 linuxbios and hackiun AMI BIOS

On Tue, 14 Aug 2001 ao...@un... wrote:

> If we can (good!) 
> could I recover the original bios booting the manufacturer 
> flash utility floppy, using the flash bios from an identical  
> unmodified motherboard, and just before the flashing, change 
> the chip (in other words, will DOS be using the bios so I can 
> remove the chip and proceed the flashing)?

Provided that the chip is the same you could "hot flash" it, although it
isn't recommended because it's very easy to short out your motherboard
while doing it.  Primitive BIOS savers use this principle with the
exception that you load both of the chips prior to turning on the machine
and swapping of the chips occurs through flipping a switch on usually just
one of the pins.  You can make one of these yourself even if you have only
a passing experience with the soldering iron.


> last but not least, has anyone just tried to disassemble the 
> AMI bios, so we could just get rid of the annoying "CMOS ERROR" 
> halt (like make a "halt on no errors" ?


You can do it yourself if you want to.  Just get a disassembler and get to
work.  The entry point into the BIOS is fairly well documented, see the
Pentium manuals on the Intel site for example.

Tom