I have a few questions in my mind, I would like to know the answers from miners.

Which are the PC board's requirements and supply unit needed for these GPU's?
1. NVIDIA GeForce RTX 3080
2. AMD Radeon VII
3. NVIDIA GeForce GTX 1080 Ti [is this board still recommended for eth mining?]

- If you happen to know any link where I can find all such details regarding eth mining [keeping in mind as beginners] please do share here.