The whole closet bit has been taken a bit out of proportion. The suggestion is really that sometimes it can be a more practical solution to move the PC to another area and use extensions to bring the console back to the workplace. Making a computer quieter can incur some pretty large expenses, especially when the OP's machine is being described as not overly loud in the first place. Think outside the closet, or box, as it were. I can easily relate to overheating computers and well, most that I have seen overheat were happily doing so in an open, well ventilated area.