I just built a new pc and my i7 8700k only gets up to 3.8-3.9 ghz and will not go any higher temps are fine around 50c on intel xtu. i have tried to turn off and on xmp and also mce in teh asus z370 bios. I tried to change the core clocks to core 1- 4.7 core 2- 4.6 core 3- 4.5 core 4-5- 4.4 core 6- 4.3 but I cant edit those cores. What do I do?