Most likely, it is due to the fact that the old iMacs top out at 6MB of VRAM and have a craptacular video chip. With Tiger, they were supposed to redo the Quartz engine to make better use of pci graphics cards an sub-16MB cards. I'd guess that this requires at least 8MB of VRAM minimum. Incidentally, the only stock-config Macs that would not meet that criteria also have no firewire port. So. it is easier from a marketing standpoint to simply point out the part of that equation people are most likely to understand. If I'm right about the video, then Xpostfacto may not be able to get Tiger running on the old-schoolers at all.

Peace,
Todd
http://internetliberationfront.org/iMacClassic/
http://groovechicken.blogspot.com
http://internetliberationfront.org/IrelandJourney/
On Apr 13, 2005, at 10:56 AM, Lilith von Fraumench wrote:

On 4/13/05, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
weird. why does tiger require a built-in firewire port? i have one, but it
seems weird that you it
would be REQUIRED to have one...

Perhaps it has less to do with needing the Firewire port, and more to do with the motherboard which, incidentally, has a built-in Firewire port?

Just conjecturing....


Lil

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