I built my gaming pc not too long ago and everytime i play a game my gpu goes up to 65C~75C. Cpu is overclocked to 4.4 ghz 35C~45C. When i am done playing games and shut off my computer i hear crackling and popping noises 5 minutes later. Some people tell me its the speaker that makes noises but i don't have any speaker, i have a usb headset. My hard drive slot broke so i let it dangle next to the motherboard. Do you think hard drive is causing the popping noises? is it because its colliding with the motherboard?