I was able to get it rock solid stable at 5.2ghz in windows at 1.29 vcore. this is literally a silicone lottery cpu. Unfortunately for whatever reason, macOS won't reach desktop at 5.2ghz even though windows passes every stress test with flying colors under sun. Verbose boot is 100% solid, it literally completes boot process, but the point where window server loads the desktop, it goes to infamous black screen instead. No panic, no hang, no reboot, or errors. just black screen. I wouldn't be surprised if macOS just doesn't comprehend 5.2ghz (or make fakesmc doesn't. who knows).
shame. i was able to run 5.2ghz with a temp average of like 75C under full load, all cores in Aida64 for 20 min straight.
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jb007
2 things you need to do. advantage voltage, and change LLC and vcore to extreme. This will eliminate voltage droop. after this. then you set package of cpu to desired overclock. then set vcore to a good starting point. not too high. no higher than 1.28 to start. then boot into windows (macos doesn't have ANY worth a damn stress tests. geekbench has a fake stress test but it BARELY stresses cpu) in windows you can use prime95 or aida64. I actually run both for good measure. if you crash, vcore not enough enough. if you don't crash but temps too high. try lowering vcore by one incriment at a time to see how low you can get until you do crash, to get your lowest temps possible while still remaining stable. run the stress tests at least 20 min. longer is even better but at end of day, i just do 20 min cause the true stability test comes after anyways, general use for the coming weeks post OC.
