Fan layout question

[KantyBena20]

Hi all,
I'm changing my PC's fans and I have a doubt about how to position one of the fans. I have this configuration:

Spoiler

My doubt is how to position the "red" fan in the side of the case, intake or exhaust air?
For more information

• 
  ■ HDD fan and back fan have about 97CFM and 4.55 mm/H20
  ■ The fan below DVD have 74.5 CFM and 5.36 mm/H2O
  ■ The heatsink fans have 80.92CFM and 6.15 mm/H2O.

The "red" fan would be one like the HDD and back fan.

Anyone can help me, please?
Thanks for all.

 

[MiDNiGHTsoul]

Like this. Which means, intake.

 

[hapkido]

You'll want it as an intake if you use it.

FYI, those GPU fans push air onto the heatsink. The back is an exhaust, but probably only about 1/2 the hot air goes out the back and the other half goes into your case.

 

[KantyBena20]

You'll want it as an intake if you use it.

FYI, those GPU fans push air onto the heatsink. The back is an exhaust, but probably only about 1/2 the hot air goes out the back and the other half goes into your case.

Thanks for the answer. Later I was thinking about the pictures and I was looking a photo of the VGA I have and I thought that the picture I posted was wrong too. I'll fix the picture. Thanks for the information.