Not sure whether this question belongs here, I hope so. I have just bought a motherboard and CPU. I have installed the CPU, cooler and connected to CPUFAN on the MB. I have plugged the power supply to MB and the cable from "ON" button to pins named "PWR" and the LEDs. However when I turn on the PC, both HDD and POWER leds are continously on and the PC cannot be turned out. What could I be missing?