Fan wiring question

[wilson44512]

so i dont get this screwed up can some one help me wire this up right. i plan on adding this fan to the top of my case to help blow out more hot air. and im going to use this controler. but it dont come with very good direction.

in this pic here i have the plugin numbered. #1 is no brainer Do i need to plug in #2? And the directions say Plug #3 into the mother board? But where. and does it matter this only has a 3 prong plug?

directions?

http://www.evercool.com.tw/install/instal_scbcd2.htm

i wonder if i could plug it in where it says CPU fun. since the CPU is water cooled. and pluged it at the right? does it matter if it is a 4 pin and the fan and cooler control is a 3 pin?

 

[volcanoscout]

You shouldn't need the 4-pin Molex connector (2) - the fan will draw it's power from the fan header via the controller. Normally the CPU fan header is PWM, so if you hook up a 3-pin (DC) fan, the fan will only run at 100%. Shouldn't be an issue for you because you've got the fan controller connected between the header and the fan to raise or lower the voltage and speed.

You're right, though - awful instructions.