How to keep these builds cool?

[BoracusGrim]

these are my 2 proposed builds

http://pcpartpicker.com/p/EDvE

http://pcpartpicker.com/p/Er2Z

how will i keep this cool with 3 gpus?

any other recommendations are also welcome, though im set on the gpu and cpu selection and #.

 

[gussrtk]

well...

FILL ALL FAN SLOTS with good fans. Take the h100 and replace or just add 2 more fans for push/pull setup.

also... you sure you wonna spend on 3x 680? 3x670 will do pretty amazing and it will cost a lot less