I have a new apex case with 1 80mm fan exhaust, 21.7 cfm. I can add a hard drive cooling 2 tiny fans to 5.25 in. drive bay for intake,18 cfm. case has 2 groups of tiny vents on each side of computer also for cooling. computer not build yet. should I use a better case with more fans, no gaming for this Linux white box computer I was building. I have a cooler master 912 haf case I can use, but was going to save for other build,lol