My computer was working fine two days ago, as it has for 2 and a half years. Yesterday I turned it on, and the monitor says no signal. I tried it the integrated GPU, dedicated, and on a TV. Nothing. Specs: Intel Core i3 2130, Palit Geforce GT 730 1GB GDDR5, 8GB DDR3-1600 RAM, HP 300W PSU, 1TB 7200RPM HDD, Foxconn H61 chipset motherboard. Note: Usually my PC makes a noise when it powers up, which didn't happen when it failed, but the power button lit up.
Problem has been solved! I have a PSU that I planned to use for my future build, but as this PC's PSU failed, I have decided to use it on this.