It didn’t have the “intel confidential” or “ES” on it. Can you point me to a n00b how-to on installing kexts?
Man, it's been a long long time since I've done that, but I vaguely remember there was a tedious manual process of moving files around or modifying files and then either repairing permissions or manually setting specific permissions. The preferred method was Kext Drop or Kext Utility or something else where you'd just drop the Kext onto the app's window and it would do everything necessary for you. I think I used Cindori's KEXT Drop. I don't know if it still works in the era of SIP and whatever else, but I'd look for a KEXT installer to do it E-Z style.
One possibility is that it might just be an incompatible CPU. I know you're probably thinking "but it's on the CPU Compatible List that YOU WROTE, Mr. Actionable Mango".
Yeah, well... when I initially created the CPU Compatibility Matrix, I only included CPUs that were
actually verified by someone.
Unfortunately over time people kept saying things like "well if that CPU works, then this should work too because it's just a different speed" or whatever reason. I usually gave in because I didn't want to discourage the input.
In particular a whole bunch of the i7's got onto the list that way. It seemed to work out okay because a couple of the "theoretically" compatible CPUs were later tried and
did work. So that was good, and those CPUs might not have been tried at all if they weren't on the list.
But now I regret giving in because what's happening to you
might be exactly the sort of thing I was worried about and I sometimes I think I should have said "no" at the time. And now I have no idea which CPUs are truly verified and which are theoretically compatible.