Does size really matter?

[poggwea]

DAT title

I was wondering because It said in my case Manuel that if could support 80/90mm fans. So does the size really matter there? Also what is the point of a 72mm fan

[Nup]

Yes. The smaller they are, the faster the have to spin to move the same amount of air, thus making more noise. 

 

So ideally you'd have one big fan moving slowly as opposed to lots of small ones moving fast. 

[wyattzx]

( ͡° ͜ʖ ͡°)

 

The larger your fans, the slower they can spin, as well as the more air they can move. Ideally, you'll want to use the largest fans you can use for your mounts in your case. If they're decent fans, you'll get much better airflow and noise levels than a smaller fan. Just know that a Corsair 120mm is going to be better than an off-brand 140mm though, so you'll want to make sure you buy quality stuff! 

[MDBT]

Not sure what type of cooling you're attempting to accomplish here but the basic point is that a larger fan diameter can create more airflow at a given fan speed or allow for a lower noise by creating the same airflow at a lower speed.  Sizing is usually based on the maximum that will fit in a space.

[poggwea]

Hard drive cooling for all DAT well... Jkjk I had my hard drive overheat once for downloading to much stuff at once. Better safe than sorry

[MDBT]

Have you got the hard drive mounted in the front with a main case fan providing air?

[poggwea]

Idk man. I got one in back one under 2 in front and 200mm on the side. 1 is on top. I'm attaching it to a drivebay underneath the hdd

[spwath]

Yes.

Bigger is better, pushes more, harder, can go slower to get same great result, it's best to shove the biggest one you can fit in. Personally, I like putting a large penetrator in their.

A Silverstone air penetrator that is.

[RyomaSJibenG]

my case is CM 690 III, i put 2x MegaFlow 200mm front and and top as intake, never been happier