ATI Radeon HD 5770 Graphics Upgrade Kit for Mac Pro (Mid 2010)

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Will this work in a Mac Pro 1,1 ? Yes, but will it support two 30" Apple Cinema displays?

Have a 2006 Mac Pro 1,1 dual 3 GHz processor, 16 GB of Ram. Installed an ATI Radeon HD 5770 Graphics Upgrade Kit (easy). One 30" Cinema display shows up on the DVI connection. The second will not show up at all (not even at a lower resolution) with the standard single Mini DisplayPort to DVI Adapter. My question is will the second 30" Apple Cinema Display show-up with a DUAL Mini DisplayPort to DVI Adapter? (before I spend another hundred bucks on another adapter)?

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    Hi Steven I have the very same setup and it works without any problems. At first I had to unplug the Mini DisplayPort to DVI Adapter after the computer started and then replug it in. After I installed Lion everything worked just fine no replugging or anything.
    Jim

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