What a deja vu! Just been through the same issues with you with nearly the same parts. Wonder if you'd like to share your latest updates?
I have I9-13900 (Not K), 280mm AIO, Asus Strix Z790H, Zskill 16GBX2, 850W PSU, 4070 and some NVMEs. We hooked up everything and installed Windows10 and it...