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iMac 2009 to 2011 (A1311/A1312) Upgrade Guide – MacintoshMen
SOLVED: What GPU's are compatible with iMac 27" 2011? - iMac Intel 27" EMC 2429 - iFixit
How to Install MacOS Mojave on Unsupported Macs with DosDude Mojave Patcher | OSXDaily
Apple iMac review (mid 2011) - The Verge
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