Hello, everyone... I have a new TT Toughpower 1475w PSU that won't turn on. It provides enough power to light up the buttons on my motherboard, but when I turn the computer on the power supply clicks and shuts off. After about 15 seconds, it lights up the motherboard again but still won't power up. I tried the troubleshooting steps in the manual to no avail. Any advice on this would be greatly appreciated.