So my computer recently started displaying no picture on its monitor. However, when I turn on the computer it sounds like not every device is powering up. So I opened up the computer and tested every connector on the power supply with a multimeter. I read that when I short out pins 15 and 16, the fan is supposed to start to spin, but it does not. However, with these two pins shorted out, I was able to take voltage measurements of the pins on every other plug, and the measurements fell within the tolerance ranges. Once I plug the 20-pin plug back into the the Mobo and power on the computer, the fan starts to spin but the CPU is so quiet that I feel like everything is not powering up. What does this mean? Where do I stand?