How to install High Sierra after cpu upgrade

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iMac Intel 24" EMC 2267

Model A1225 / Early 2009 / 2.66, 2.93, or 3.06 GHz Core 2 Duo processor

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How do I install High Sierra in my iMac 7.1 after upgrading cpu to T9500?

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Zach @zpl Rep: 4.6k 8 12 3 · Answer 1 · 2023-07-07T17:02:31-07:00

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You can find instructions on how to install macOS here. You may need to install an earlier OS first and then upgrade to High Sierra. Good luck!

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