bad build

Basically my builds mobo is not overclockable yet I have a i7-9700k, aside from the obvious no oc, is there anything bad about running a i7-9700k with my mobo? Please help! https://pcpartpicker.com/list/gVwGCL

This PC has already been built. Someone else built it for me and it has many bad components and I want to start fixing it. I want to start my replacing the PSU as many people have stated it isn't name brand and could be unreliable. I am looking to buy the Corsair RM 650x but dont know if thats...