Where to connect the case fans?

[highterm]

Hi,

I have just built my first computer with the following specs:

ASUS Prime X370 Pro mainboard
Ryzen 7 1700 CPU
16GB 2400 RAM
Radeon Pro WX4100 GPU
Samsung 960Pro 512GB SSD
2 x Hitachi Ultrastar 7K3000 HDD
Be Quiet Dark Power Pro 11 750w PSU
Fractal Design Define XL R2 case
Windows 10Pro

Question-
My case comes with 3 case fans installed (1 front, 1 rear, 1 bottom) and it seems i have 3 options regarding where to connect these case fans.

1. The cases’ own fan controller which can connect to the 3 fans, which is then connected to the PSU.
2. The motherboard has two case fan connectors, so i can connect 2 here and the other direct to the PSU.
3. Connect all 3 case fans to the PSU, using the 3 adapter cables that came with the PSU.

What are the pro’s and cons of each option and which is the best option?

 

[alexoiu]

Hi,
1. Not sure, but I think that the fans speed is not set based on the board's temperature (manually set - 3 step switch).
2. I'd connect 2 to the board and one to the case fan controller. If directly connected to the psu - full speed +noise
3. See above.

 

[Basel Hamad]

try to connect the 3 fans to the fan controller, if this didn't help, try this: https://www.amazon.com/gp/product/B01N1Z3FYD/ref=ox_sc_act_title_2?smid=APHB2NWNKDSBL&psc=1