I think I am getting a mechanical noise, like a more high-pitched sound, not sure how to explain it. But does anyone know of any solutions to these sounds? Thanks.
Maybe a defective fan?
First you would need to isolate the sound. If it is a fan you could unplug the fans one by one until you find which one is making the noise. Or maybe you could get a piece of tubing and put one end near your ear sort of like a medical stethoscope.