I had this same problem, except I didn't have a laptop making noise I had 5 Dell poweredge 2650's (yes i realize how outdated they are) plus 4 other home brew s

I had this same problem, except I didn't have a laptop making noise I had 5 Dell poweredge 2650's (yes i realize how outdated they are) plus 4 other home brew servers. I rewired my network, and placed them in a closet. I'm at the point now where the hum actually helps me sleep better. on another note, the servers keep the closet a comfortable 70º on average (I leave the door open during the day, so air circulates) which is the perfect temperature while my homebrew is fermenting, I'd like to think I have a wonderful nerd eco-system.