Ok maybe I'm just a die hard techie.. A lot of overclocking commentators think that the best way to overclock the 9700k and the 9900k is to turn off power limits, and even VRM temperature limits, then let the cpu dictate the power consumption. Having had experience with the 9700, if you leave it to it's own devices it'll draw 210W+ straight off the bat. Short term this isn't a big deal, but longer term this will nuke VRMs. If you look at the power draw figures on Anandtech. You'll see that at stock, the 9700k is 124W and the 9900k hits a huge 168W. Intel themselves suggest using a 130W heatsink Which is nearly 40W underspec. The i7-8700 in comparison hits 145W or so. Ok, so what does this mean? If I was a motherboard manufacturer, I'd probably design my board around a 160W processor power limit. The reason being that very few people are going to have processors hitting 160W power, as most of them won't be running an $800 processor. This means I'm not going to have a lot of tolerance for higher power parts, especially with a z370 board not originally designed for them.. Be careful how far and how hard you push your chips.. it may bite you.