There are not many motherboards of today that won’t support a 3080 due to its PCIe x16 nature but, in our eyes, you’re probably going to want to pair your GPU up to a newer processor like the Ryzen 5000 series or a 10th gen Intel chip. Therefore, we’d recommend either the X470, X570, B450, or B550 for AMD CPUs and the Z490 for Intel processors as these will all be compatible with that newer technology.