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r6mile

macrumors 65816
Original poster
Feb 3, 2010
1,024
516
London, UK
Hello,

A few years ago I set up for a relative a 2011 21.5 inch i5 iMac, and replaced the dead GPU with a flashed Quadro K610M card (so boot screen etc works fine). The Mac is currently running High Sierra - using OCLP is it possible to upgrade the OS beyond that and get a usable experience with Kepler cards? As I understand there is a lack of Kepler drivers beyond 10.13. If so what is the best OS choice here?

Ie. I’ve had a good experience running Monterey on a 2012 quad i7 Mini (where Sequoia was noticeably slower), but have not used OCLP on iMacs like this.
 
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