i put the bios yesterday on my codexi. fels the same. 5.0 at 130 using automatic core. is not oc. but works ok. Here is what i am using on my 9900k
XMP1 (3200 16/18/18/28
asus multicore enable remove limits
current limit 255.75 cache 45 (both)
Cpu core volt 1.30
vccio vccia 1.21250
CPU PM 4095/auto/4095
and that is it
5.0 all cores stable. csm disable uefi type os fans pwm turbo and pump is adjusted on PWM with the asus aio. for me is ok. i can try later but making another adjustment is not worth. since i will get like 200 points that is not notable. maybe get what 4s faster?
so far is ok since i am doing some work with asus on a app (as many know) these settings are, at least ok. so far.