A:Answer If you mean 750w Corsair power supply the answer is yes. The motherboard power supply connector is a standard 24 pin ATX type, so any off the shelf power supply works. As far as CPU choice the board supports all Ryzen CPU up to and including Ryzen 3000 series. Always update to the latest BIOS from the MSI website to be sure your board is up to date for use with the latest processors. I have this same board running Ryzen 9 3900X, Ryzen 5 1600, Ryzen 5 3600,Ryzen 3 1200, Ryzen 7 1700, Ryzen 7 3700X and Ryzen 7 2700X.
If you were wondering if it will support 2 video cards (Crossfire support) it will. There are 2 full size PCI-e slots for multiple video cards.