These noises occur in two different times. Sometimes I try to turn on my computer but hear a really loud noise that sounds almost like a grinding noise. If the previous sound isn't made usually I hear a quieter version of the sound everytime I try to do something on my computer. These two problems started fairly recently with no unusual indications. I'm guessing it might be the hard drive but I'm not sure how exactly I would find out. I'm fairly positive it's not any of the fans because I made sure no wires would get in the way of their movement.