On the motherboard, indicate the number and kind of expansion slots accessible. Is the P1 connector on the board a 20-pin or a 24-pin connection? Is there anything else on the board that can provide...

On the motherboard, indicate the number and kind of expansion slots accessible. Is the P1 connector on the board a 20-pin or a 24-pin connection? Is there anything else on the board that can provide electricity? What is the total number of memory slots on the board?