1- you need the latest kernel patches from here, not tested on 10.15.7, so may or may not work https://www.insanelymac.com/forum/topic/335650-kernelandkextpatches-1013x1014x1015x-x99x299/01 - Cpu is runing a bit too hot and seems to be with a fixed max clock (i'm using a E5-1620 v3)
02 - USB ports only work when i connect whatever i need (External SSD, iphone, etc) before booting and let it boot with it plugged. If i connect anything after the os is booted it says USB needs more power.