Rear case fan affiliation

[Wierzbak]

Hello everyone. Tomorrow I'm planning to mount a DR Pro 3 into my PC (right now there's a original box little-funny fan), as well as a second 140mm fan in front of my Define R5. So there's the thing: now I'm utilizing only one out of 3 fan connectors that are on my MOBO to power the CPU cooler. The original two 140mm fans that came with the case as well as a 120mm bottom fan I brought from my old SilentiumPC case are connected to a built in fan control system, that can handle up to 3 fans. After installation of DRP3 my CPU fans will need 2 connectors. I will be left with one free connector, which seems to be great, because fan controller won't bee able to handle all 4 case fans. But what should I do:
1. Have front and bottom fans controlled manually and the rear one plugged directly into MOBO?
 if yes, then 
     a) it is set up to run with a specific speed all the time

     b) it is affiliated with CPU fans in SpeedFan so it changes speed depending on CPU temp

2. Same as 1 but with the bottom one being connected directly to a MOBO

3. Buy a Y-shape 3 pin cable to try to plug all 4 of the case fans to the controller

Please, help

    

[Skiiwee29]

Honestly your case fans arent going to make a huge difference in the overall temps so you can honestly use them how you would like. I personally have mine just statically set to usually 50% speed in my BIOS and ignore them. The only ones I worry about Tuning a curve to are the ones on my radiator. 

[Wierzbak]

So to keep things comfortable and be able to controll case fans speeds with ease (sometimes I see it making a difference while under heavy load) I'd go with a option 3. But is it a good idea to split one of the connectors coming out of the controller on two fans? Will the voltage be the same for both of them? I don't know much about electricity so esxcuse me if I'm horribly wrong

[xGGAx]

you could buy a splitter  and both fans would run at the same speed no problem, or get a fan controller like the NZXT Grid+.

[Wierzbak]

Well, a splitter is incompareably cheaper and using original fan controller is kinda "lore" friendly  I also plan to mod my define to make the i/o switch cold white, and have a delicate and not-that-bright ambient glow coming out of side air intakes in the front panel on their full height. I hope it too look really cool while not being flashy and show offy, so my case renain classy and modest with emphasis on black and white  Although those are minor touches I think I'll post it in case mod thread, I hope my post won't be deleted for such an amateur and minor mod  Anyway, thank you gus very much for your help, I really appreciate that!