rc3105 Posted December 18, 2020 Share Posted December 18, 2020 I've seen a couple of Reddit folks posting that it's possible but I can't get it going with the info they've provided. Do we have any 990 experts here that could do a guide and/or post an EFI folder? *I hate asking for a handout but my eyes are bleeding from all the reading... thx Link to comment Share on other sites More sharing options...
Dirk_Digler Posted December 24, 2020 Share Posted December 24, 2020 (edited) On 12/18/2020 at 6:04 AM, rc3105 said: I've seen a couple of Reddit folks posting that it's possible I can confirm Catalina on a Dell Optiplex 990 works very well indeed. Look here, all you need. Seasons Greetings. https://www.insanelymac.com/forum/topic/323052-guide-el-capitan-sierra-high-sierra-mojave-catalina-on-intel-5-6-7-8-9-chipset-series-nehalem-sandybridge-ivybridge-haswell-broadwell/ Edited January 19, 2021 by Dirk_Digler 404 error on first link Link to comment Share on other sites More sharing options...
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