After market fans

[Jimbodious]

I am building my first computer and have purchased a Corsair Obsidian 650 case,a Asrock Z77 Extreme 6 motherboard and a Coolermaster seidon 120m cooler,my question is where do I plug the pump cable from the Sidon 120m into the motherboard?Is it the CPU fan2(3 pin) socket?
Also should I turn the rear fan on the case around(so it's drawing air in)and have 2 fans on the radiator,and if I do this where do I plug this fan in so it works together with the other fan?,or should I remove the rear case fan and place it at the top of the case(along with another fan) to draw more air out now that I am drawing air in at the front,rear and bottom of the case.Sorry I forgot to mention that I placed my power unit in with the fan to the bottom to draw cool air in from outside,I read that this was okay to do with this case.

 

[TheBigTroll]

1) there are cases half the price of a 650D that are built just as well and are less loud
2)there are better boards for cheaper than a extreme6
3)id get rid of those single thin radiator liquid coolers. a hyper 212 evo performs better

you plug the pump into where you would normally plug in the CPU fan from a good heatsink