So, my PS4 showed no signs of life, the light wouldn't turn on and off, I was hopeless. I was just about to start saving money for a new Ps4 but luckily I found out what was wrong with my console. I ordered it asap, installed a new PSU and it worked perfectly! I'm so grateful, so if your PS4 is the CUH-1115A model, don't be afraid to order it because it will work.