Have you plugged in the power cable from the PSU to the motherboard
Have you plugged the fan onto the motherboard
Do you have a thin layer of thermal paste between the CPU fan and the CPU
Does the motherboard has stand-offs between it and the case bottom
Is the ram plugged in correctly, is it wobbly, because ram has a notch on the bottom and it is not in the center and can only go in one way
Have you plugged the fan onto the motherboard
Do you have a thin layer of thermal paste between the CPU fan and the CPU
Does the motherboard has stand-offs between it and the case bottom
Is the ram plugged in correctly, is it wobbly, because ram has a notch on the bottom and it is not in the center and can only go in one way