Galaxy Runner

Hi, I was just wondering what would happen if I did what the title says. The reason for this is I want to test my power supply. My PSU has an rgb fan, so that would be my way of telling if it is working or not. I do not no much about electricity or how every component works, so this question my sound stupid. -Thanks

Hi, I have a 600 dollar dell g5 desktop. Now I know I shouldn't have bought it, but it was my first ever gaming computer and I had no clue what I was doing. I want to upgrade some parts, but I don't know what to do. I have 8gb of ddr4 ram, a intel i3 (don't know what model), and a gtx 1650 graphics card. Is it worth spending a little bit of money for 16 gb of ram? Should I upgrade my cpu or my gpu first? I have a 300 dollar budget to upgrade. -Thanks