Comment Maybe she's not wrong? (Score 1) 720
It sounds like there are several problems here, one his computer is to loud. This is a problem that is solved with better equipment. Liquid cooling modern video cards and CPU you can make a computer near silent. If you do not have the money to build a new computer with noise reduction in mind you can always move the computer and desk to another room all together.
Now the other problem may have nothing to do with the "noise" of the computer at all. In this case you need to look at the number of hours you play games and weather you are meeting your relationship obligations. Are your chores around the house getting done by you without being told/yelled at/hounded, are you spending enough time with your wife/kids/(non-online) friends?
She may not be wrong but going on-line and asking a loaded question like this with only 1 side of the story makes it impossible for a group of people to diagnose YOUR problem. My suggestion is you talk to your wife find out what is really bothering her and possibly seen professional help.