Review on 💪 EVGA 220-GA-0750-X1 Super Nova GA 750W Power Supply - 80 Plus Gold, Fully Modular, ECO Mode, DBB Fan, 10-Year Warranty, Compact 150mm Size by Devin Henry

So the PSU itself is very well made and the cables are very good too, everything is labeled for convenience. However, it doesn't seem to be able to handle the 3090 and when running under heavy load the PC will simply shut down. (It only works fine on a regular desktop) Nvidia says 750W (or higher) is recommended and I only use a small iTX build so using 750W shouldn't be a problem. It could just be a faulty unit that happens from time to time, but just in case you're planning on getting a 3080 or 3090 with at least 850 watts.