So ima do this detailed as possible, today I built my first gaming pc (10-1-18). Id turned it on and setup windows 10 after setting it up I diwloaded the update, then my power suppy kept maling a flicking sound I believe it turning on and off, then i turned off the power supply then turn it back on, it will turn on but the rgb ram wasnt ob and the motherboard and graphics card lights kept flickering, I tried fixing by unplugging the cables then plugging them back in, and nothing, I turn back on then it worked, but thats not all, randomly my pc will lose connection to the monitor and cant turn it off, I have to turn off the power supply then it would work, again it turned off but now it wont get a signal, the computer turns on but I cant turn it off, but only by the power supply, the graphics card spins for a second and stop then again. I dont know if it my power supply, graphics card or motherboard. Hopefull I gave enough information to help me out.