..... you havent given us ANY information about your system...
what motherboard do you have?
what processor do you have?
What case do you have?
what powersupply do you have?
what ram do you have?
what graphics card do you have?
what CPU cooler do you have?
what is the ambient temperature in your room?
what you are asking is basically like saying " my car doesnt work ".... missing a lot of information.... help us, help you....