My computer is very loud, how do you recommend I make it quieter?
What steps can I take to make it sound softer?
Install silicon washers on disk drive and fan mounts, to dampen vibration. Replace components with quieter ones. Underclock your PC. Clean your PC (as SS said). Move the PC farther away. Get sound dampening cushions and install then between line-of-site(sound) between you and the PC (make sure it does not block airflow).
Your computer being loud is generally the fans hard at work keeping your computer from exploding. Here's a few possibilities to make it quieter: