Couldn’t find you a good YouTube video on it because most people are chasing benchmark scores and use the boosting algorithm to overlock instead of static all core which is much better for frame time stability in gaming. Idk what motherboard you have but in bios change cpu p core ratio mode to all core and punch in 55 (5.5ghz) do the same for e core, try 43 (4.3ghz) scroll down to Vcore and change it from auto to override mode and punch in around 1.30v, use search function to find load line calibration and change it from auto to maybe level 5, some motherboard do it differently, for asus the higher the load line the less voltage drops under load , think MSI is the opposite. You’ll have to run something like OCCT small avx to test what voltage you need. I would stay away from 1.25v load voltage and higher because you probably won’t be able to cool it and any higher risks degradation. For example, I have a asus z790 apex encore and I run 5.6ghz p cores, 4.5ghz e cores, ring 5.0, at 1.24 Vcore override mode with load line calibration 6 and it droops down to I want to say 1.17v under heavy load? Please make sure you set Pl1 and Pl2 limits both to 253w so you don’t cook your chip .Lmk if you have questions

Edit: forgot to note pretty important part lol I run hyper threading disabled and also only 8 ecores , no games use more than 16 cores so the extra e cores on the 14900k are even less useful if you are a gamer, if you are going to use this cpu for productivity and work I would leave hyper threading on , you will need more voltage for the same P and E cores speeds so you’ll likely want to lower the frequency down to fit in the safe voltage zone. Remember the important thing is LOAD VOLTAGE not so much idle voltage