I just started building my first computer and I have the ram installed, cpu+fan/heatsink installed, and power supply hooked up and I just wanted to check to make sure everything was working ok so I started it up. The cpu fan turns, the onboard led light is on on the mobo and the cpu fan is turning. My speaker didn't give any beeps and I cant hold the power button to turn off my machine. I just have to manually turn off the power supply. Is this normal? And should the speaker on the mobo beep?