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1.5 Core Solo, 1.66 or 1.83 Core Duo, or 1.83 or 2 GHz Core 2 Duo processor. This covers the first Intel-based Mac Mini models from Early 2006 to Mid 2007.

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Where can I find the EFI64 firmware for Mac Mini A1176?

Upgraded my Mac Mini A1176 1.5 GHz Core Solo to 64bit 2.3 GHz Core 2 Duo, 2GB RAM, 2x BD read/write PATA internal optical drive. OS X Lion is still not installable: EFI64 firmware is lacking. Who can make an EFI64 available?

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Here's how I got it installed on a upgraded iMac. It should work for you. I am still working on the boot speed issue: Will Macs upgraded to Core2Duo Processors work with Lion?

You might also want to look at this question for what we have run into with Lion so far: OS Lion is available for download

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Otto will be eternally grateful.
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