06-19-2016, 10:22 PM
I personally have and have used a bunch of PFC and TFC 120mm Delta fans(the closest from your list would be the AFB) and they draw close to 50W from my experience. I had to buy a special fan controller that could do 60W/channel. They are also 252CFM and a screaming 66-70dB. Considering your application and also your case design, you probably dont need insane static pressure since there's nothing up against the back side of the fans that could cause major back pressure(i.e. radiators). Higher CFM does mean better airflow but at some point it doesnt really have much of an effect if that hot air is just being dumped into the room again. The different between the 190CFM fan you listed and the 240CFM fan will likely not be that noticeable, especially with your case design. The most noticeable thing you can probably do for heat after adding intake fans is back up a fan or two to the back of the case and draw the hot air out of the back tips of the cards more effectively. I've done that before and it has made a much bigger difference in desktop style cases like this than forcing air into the cards from the front tip. If you had a sealed up rack style case, forcing air into the cards would be much more effective.