Sooner or later the HD 4890 will become available for Macs. I wouldn't rule out the possibility that the HD 4890 will be EFI64 and EFI32 which will work with your computer.
Maybe either 10.5.7 or Snow Leopard will have drivers for cards that you can use.
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#425281 - 04/22/0903:22 AMRe: ATI Radeon HD 4870 X2
[Re: NucleusG4]
John Rougeux Member # -1
Registered: 11/06/08
Posts: 5434
Loc: Louisville, KY
Originally Posted By: NucleusG4
Of course this all sticks in my craw.
I bought my MP thinking I wouldn't need to buy another tower for many years.. and it's already incompatible with vidcards 2 years later....
I feel your pain. I bought the 1st generation Powermac G5 and was stuck with only 1 option to upgrade video card, the X800 I think? The one that was incredibly hard to get ahold of?
Yep... I will never buy a first gen Mac again. I was also burnt on the first G4... it was supposed to be a 400 and was clocked back to a 350 and also had the old mobo in it. Then I bought the first dual processor... the dual 450... Apple had to totally replace that machine after months of agony.
Because it involves X-Plane.. and because it says this...
The Radeon HD 4870 is a welcome CTO option for the 'early 2009' Nehalem Mac Pro. And we're glad to see that it is sold in kit form. You will need the February 2009 ATI drivers but those should be available to all users in the next Apple system update. (Though Apple only officially supports it in the 2009 and 2008 Mac Pro, we have confirmed it runs in the 2007 and 2006 models.)
"Apple is officially supporting only 2009 and 2008 Mac Pros with the Radeon HD 4870 kit. And it requires either the build of OS X 10.5.6 with the February 2009 ATI drivers -- or OS X 10.5.7 (not yet golden).
As with the Radeon HD 3870 and HD 2600, ATI included both a 32-bit and 64-bit EFI driver in the ROM, so it should work in all models of Mac Pro with the latest drivers. We installed in the Clovertown first generation 8-core Mac Pro (as you can see from the graphs above) and a close colleague installed it in a 2.66GHz Woodcrest 4-core first generation Mac Pro. As long as you have two power feeds for the card in your first generation Mac Pro and have the correct drivers properly installed, it should work fine."
_________________________
Do not argue with an idiot. He will drag you down to his level and beat you with experience.
A guy (poster) named Netkas has been doing a good job getting drivers to work on PC cards. Here is a running commentary. Look mainly at the last 15 to 20 posts.
I don't know if it is 32/64 but my money says it is because it looks to me like all the flashed cards are 32/64.
Tell you what, I'll ask him. You'll see his reply.
_________________________
Do not argue with an idiot. He will drag you down to his level and beat you with experience.
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