H110i push pull on one CPU fan pins

[EddieLs]

So im doing a pull push conifguration (H110i) on a NZXT h440 case. The motherboard is a Asrock Z370 Taichi.

I have all 4 fans mounted on the case, and the plate attached to the cpu.

What Im really confused in is there are 4 fans, two connections for only 2 fans that run from the watercooler h110i to the cpu pins. Where do I connect the other two fans??

 

[SkyNetRising]

Connect them to some of remaining fan headers on the motherboard.
If there are not enough fan headers, then use fan splitters.