From: Jeff Walther <[EMAIL PROTECTED]> Date: Thu, 4 Dec 2003 16:29:01 -0600 At 10:16 +0000 12/04/2003, pdimage.fsnet.co.uk wrote:
It appears that the Sapphire pci Radeons may no longer be flashable to
mac as the manufacturer has apparently replaced the original 128k rom
chip with one half size at 64k - and the mac rom requires the full 128k
regardless of the flash method used. The part numbers are unchanged so
identifying the 64k rom cards is quite difficult. More info is on the
MacLife site if anyone is interested.
Argghhh. MacLife is auf Deutsch. Are you sure about this 64K vs. 128K thing? Because I just checked the serial flash chips on the two cards you were kind enough to sell to me, and they have 64KB chips. So I'm guessing that it's a 32KB vs. 64KB issue, or something else is going on.
BTW, is there any discussion there about using a parallel flash instead of a serial flash. The board clearly has a position for parallel flash (PLCC-32) but it also looks like one might have to install some serial to parallel buffer chips as well to make that > work.
Oh, details on the chips. The chips are from ST Microelectronics. They are M25P05V6 chips. ST Micro lists those as a 64 KB serial flash chip. The 128KB flash is a M25P10V6.
Jeff Walther
Jeff, Plenty of English at the Maclife/Sapphire card info forum:
http://www.falkemedia.com/cgi-bin/forum/ forum.cgi?board=hardware;action=display;num=1045243482;start=820
this link will get you to the current last page where there is lots of talk about the flash chips. 128KB are in fact the needed chips. It does seem that many Sapphire 64mb cards had 128KB chips mislabeled as 64KB chips. Which is why everyone is so confused since the mislabeled chips were flash-able and the correctly labeled ones not, odd but perhaps true! I believe you got your cards from Pete just after I did. I can tell you mine flashed and runs just great! So we likely got the good batch with mislabeled chips!
More bad news reports are that the latest batch of Power Color 32mb cards have the smaller chip and are not Mac flash-able. So while ones that work are out there it's going to be hard to tell which are which and also the odd issue of working Sapphire cards seeming to have mislabeled chips adds to the maze. Will S
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