Question Questions about upgrading an old PC for Ethereum mining

Apr 1, 2021
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  1. Could the old mainboard Gigabyte MA770t-UD3 utilize the full potential of a high-end graphic card for mining purposes? At least something as good as Radeon 6800 XT
  2. Is 4 GB DDR3 RAM good enough?
  3. What do you suggest as the minimum for a power supply?
  4. Is there any way to put two graphic cards on this mainboard?
Thanks