callsignJJ

What I have posted is just a build list, so I haven't actually ordered the parts yet. I'm just trying to nail down everything that I can think of before I make to decision to build the system. I would most likely be running the stock fans at full speed only under a gaming load. I just want to know if I should use 4 140 mm fans (2 intake 2 exhaust) or 3 140 mm fans and 1 120 mm fan (the 120 and 1 140 for exhaust, the rest for intake) to maintain positive pressure.

I'm replacing the stock fans cause I would like it to run quieter, and I've heard good things about the noise levels of the AF series of fans.

Ok, so at some point in the near future I would like to build a new PC, and the case I have chosen is the Cooler Master MasterCase Pro 5, cause it seems like a good case and I like the way it looks. The way I have the component list currently set up is like so: Intel Core i7 7700k Cooler Master Hyper 212 Evo w/ a Noctua NF-f12 G-Skill Trident Z RGB 16gb ram (2400 mhz) Gigabyte ga-z270x-ultra gaming motherboard Asus Strix 1070 ti graphics card Samsung 850 pro 256 gb ssd WD 2 tb black mechanical drive (for mass storage) Corsair rm750x power supply samsung dvd reader/burner Rosewill data hub for 5.25 inch bays For case fans, I plan to replace the stock fans with Corsairs AF series of fans. I would like to have the case to have positive pressure, so I was thinking about putting 2 AF-140s at the front for intake, 1 AF-120 in the rear for exhaust, and 1 AF-140 in the top for exhaust. My question is: Is this a good fan setup for maintaining positive pressure? Are there any better fan setups that I can do for my current list?