Actually I don't have a fan on the side right now, just the air duct so the cpu fan can pull air from outside the case instead of drawing potentially warm air from inside. The case is an Ultra UV Wizard from Tigerdirect. It's not really high quality, although I can't complain about it. I havn't had any cooling probs, (not that I have high-heat sys) right now cpu is at 26c mainboard 38c. Oh, when I got it was on sale for free after rebate-to good to pass up
