> Date: Thu, 31 Mar 2005 17:23:24 +0100 > From: Liam Proven <[EMAIL PROTECTED]>
> On Wed, 30 Mar 2005 16:44:30 -0500, Norman Rowe <[EMAIL PROTECTED]> wrote: >> I can buy an ATI Radon 7000 card for a PC for about >> $20 on ebay. A Mac one is over $100. Can the PC one be flashed to run on >> a Mac? > > As GWW says, yes, it can, but: > > [1] you need a PC to do the re-Flashing on > [2] it might knacker the card > [3] not all PC Radeon 7000s have enough flash RAM onboard to take a Mac > image The flash RAM is actually a Serial EEPROM chip. It is the little eight pin chip near the upper left-hand corner of the card. The small ones are marked 25P05. The big-enough ones are marked 25P10. In each case the number may be preceded with an 'M' and/or followed by an 'AV'. To complicated matters, some of the early cards from Sapphire shipped with a chip marked 25P05 which was actually one of the 25P10 chips. Go figure. Also, I've seen cards shipped with an Atmel chip (the 25Pxx are STMicro chips). The Atmel chip had sufficient capacity, but the Mac flasher does not know what to do with the Atmel chip. If you are a little bit skilled at soldering, you can replace the 25P05 chip with a 25P10 chip. They're available from DigiKey for a couple of bucks plus shipping and surcharge for orders under $25. I think Mouser may also have them. If you have the Mac based flasher that ATI released to fix cards with corrupted EEPROMs (October release of 2.08 ?, I think) it will flash a card with a blank 25P10 installed. So one can just solder in the new/blank 25P10, and then flash the card on a Mac. I have some left-over M25P10AV chips which I would be happy to sell if anyone wishes to contact me off list. Jeff Walther [EMAIL PROTECTED] -- Unsupported OS X is sponsored by <http://lowendmac.com/> Support Low End Mac <http://lowendmac.com/lists/support.html> Unsupported OS X list info <http://lowendmac.com/lists/unsupported.html> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[email protected]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive <http://www.mail-archive.com/unsupportedosx%40mail.maclaunch.com/> iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com
