allredy have an eeprom programer and dont know it? (crazy idea maybe :)

[Chris Bennight]

     I can verify with practical experience - at least on an ABIT KT7A-RAID
motherboard
that the hot swapping works.  My roomate fried his bios in an incident (bad
flash), and I have
the same motherboard - so I unseated his chip, started my computer with a
dos boot disk,
then poped out my bios chip and popped his in and flashed it with a good
image.  Worked
like a charm.   I did have the "bios cacheable to RAM" option checked in the
setup beforehand.

     I know most of the flash programs do strict type checking on the eeprom
type - and most
of them program at 3.3 or 5 volts I believe - I doubt you would have much
luck.

    Chris Bennight


----- Original Message -----
From: <ae2598 at wayne.edu>
To: <gmecm at diy-efi.org>
Sent: Tuesday, March 27, 2001 10:06 PM
Subject: Re: allredy have an eeprom programer and dont know it? (crazy idea
maybe :)


> Hot-swapping chips on a running motherboard, in and of itself, sounds a
> bit reckless to me.  However if you actually got it to work, who am I to
> argue?
>
> The problem with programming EEPROMs for ECM use would be that, first, I
> wouldn't think modern motherboards would be able to get by with 27256's
> anymore (I know earlier ones did though) and second, how would you change
> the cached BIOS code to a usable BIN file without crashing the board?
>
> Maybe I'm just not understanding how the process works.. Is the BIOS
> re-written at a hardware level?  That is, would the CPU not have to be
> able to execute the BIOS routines in order for the chip-writing to take
> place?
>
>  On Wed, 28 Mar 2001, Allan Langford wrote:


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