I might have done a stupid thing(but hey its fun!) and I am changing 13900k to 7800x3d(found one used for £319)
The reason being I wanted to change to mATX, so decided to also change the cpu at the same time
it will be my first AMD system since Athlon 64...
Surprisingly, mATX options are so limited.
Was deciding between 2 boards:
-Asrock B650m HDV/M2
-Asus Crosshair Gene
The mere fact that the only suitable boards are the cheapest and the most expensive one is very telling
Gene is obviously better, but it has GPU backplate clearance problems and Intel LAN, which is problematic.
Hence I went with Asrock - its £100, but it has pcie 5 for m2, decent VRM, black pcb and 2x internal headers for usb 3.1. The next board that on my list was B650m Aorus Elite(lower Gigabyte tiers have brown pcb which is a no go for me), but it did not really provide much over Asrock.
Really wanted pcie 5 for GPU for longetivity, but decided I will change the mobo when it will be needed - maybe B750 will have it by default.