Apple iMac A1312 27" i5@2.66GHz 8GB RAM 2TB HDD High Sierra Late 2009 +DH401 | eBay
IMac 21.5-inch Late 2009 - Mac OS High Sierra 10.13.6, Intel Core 2 Duo, 4 GB DDR3 RAM, 500 GB HDD, Nvidia GeForce 9400 256 MB VRAM
2011 iMac Graphics Card Upgrade | Page 201 | MacRumors Forums
Here are the Macs that can Run macOS High Sierra - The Mac Observer
Will your Mac run macOS High Sierra? | ZDNET
Macs Able to Run macOS Sierra Remain Compatible With High Sierra - MacRumors
High Sierra 10.13.6 For 2009 Mac - skieyaplus
Common Problems During and After macOS High Sierra Installation
SOLVED: Upgrade OS to High Sierra? - iMac Intel 20" EMC 2316 (Edu) - iFixit
macOS High Sierra On A 2009 Imac Core 2 Duo? A Retro Adventure :o) - YouTube
My free iMac 27" (2009) core i7 2.8, 32GB, 1TB SSD High Sierra. only cost me a SSD and about an hour of time. : r/mac
MacOS High Sierra Compatible Macs List | OSXDaily
Some Users Report macOS High Sierra Gives Old Macs Better Performance - The Mac Observer
Some Users Report macOS High Sierra Gives Old Macs Better Performance - The Mac Observer
How to Install macOS High Sierra on an Unsupported Mac - YouTube
Identify your iMac model - Apple Support
macOS High Sierra now available as a free update - Apple
macOS High Sierra (10.13) Unsupported Macs Thread | Page 6 | MacRumors Forums
Early 2009 duo core (square mac) now running High Sierra patch from Dosdude1 flawlessly. : r/mac
