Ahhh, I remember when I was on the Low End Macs Supermac/Umax list and
this ROM was leaked by/from ATI. It suddenly allowed people to spend
sixty bucks on the PeeCee version, h4xx0r it with these ROMs (although
the use of an honest-to-god DOS mode PeeCee flasher sent more than one
Mac user into paroxysms) and wind up saving sixty bucks versus
shelling out for the hard to find mac version.
if ATI charged fifteen bucks more for the Mac version, no one would
have bothered with this, I mean what Mac user wants to dork around
with DOS?? But since they were greedy and doubled the price, it just
invited something like this happening
So you'll need the appropriate PeeCee flash util from the net, and a
real PeeCee which can boot into DOS for the flasher util. You can't
do it from within Windows. The flash is done in two stages-the first,
involving the PeeCee, flashes what is essentially a broken Mac ROM
onto the PeeCee ATI card. Then, when you stick it in a Mac alongside
another working display card (you'll need monitors plugged into both
cards however) and run the Mac part of it, the Mac sees it as a Mac
flash went wrong, and reflashes it with a working Mac ROM.
I want to say its version 2.08 of the ATI ROM, but you'd want to check
Low End Mac and find the appropriate threads to be sure.
My guess as to why there are two parts to the reflashing is that
OpenFirmware on a Mac can't see PeeCee cards, and/or ATI makes it that
way to protect their investment.
Good luck with that!