Thanks, guys. I guess my main concern is whether the fan will be effective with that amount of space, or if it will be working its butt off for no results because it can't pull enough air, resulting in me having wasted the money to buy it. I have a 140 top fan coming in today for my gaming rig. I'm going to stick it in my work computer first and see if top cooling will work. If it doesn't then I'll just go ahead and get a side fan for it and see how well it works. Thanks for the answers!