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Best way to connect a D14 Fans?

1K views 11 replies 5 participants last post by  mm67 
#1 ·
Firstly, this is an Ivy Bridge build. I've been building pieces of it over the last couple of months.

I bought an Asrock Z77 Extreme 6 Monday and received it today from UPS. I also ordered a Noctua D14 last night and it's on the way. After inspecting the mobo today and reading in the book, my mobo has two cpu fan connectors.. One is a 4 pin and the other a 3 pin.

My question is simple.. Can i connect both fans that come with the D14 to my mobo? And is that better than using them on a can controller? I have a controller on the way as well.
 
#2 ·
Yes, you can plug both the fans into the mobo, but the fans that come with the d-14 are already almost silent (to me anyways), I would put other fans you have on your fan controller..
 
#3 ·
On the case i'm using it has two exhaust 120mm fans and two intake 140mm fans. If i connect my CPU fans to the mobo will it run them 100%?
 
#4 ·
There should be an option in the bios to make them run 100%, I haven't owned a mobo that hasn't had that feature.
 
#5 ·
This is my first build so i didn't know about the BIO's settings for the fans... Probably won't run them at full 100%. Just good to know i can control them from BIO's.. Might play around to see what i like better. Them on mobo or with a fan controller.
 
#6 ·
Heres another question.. Is it safe to use a 3 pin splitter on case fans? Maybe i can do without a fan controller.
 
#7 ·
That I am not sure of, but my guess is if the two fans together require the same or less voltage that the source can put out , you should be fine.
 
#8 ·
Yes you can put them on the same header with a splitter; but you won't be able to control the fan speed through BIOS, only the PWM headers have speed control these days and that's for PWM fans only; the speed control on these fans is dictated by the motherboard but the hardware for the control is in the fans.

That said though, you WILL NOT hear these fans unless they are the only ones in your system, they really are that quiet. Put louder fans on the controller and just hook the Noctuas up to the motherboard and let them run at 100%
 
#9 ·
Alrighty. Thanks guys. I replaced my stock case fans with Xigmatek fans but i think i'll put them on the controller and have my CPU cooler fans on the mobo.
 
#10 ·
Quote:
Originally Posted by DirektEffekt View Post

Yes you can put them on the same header with a splitter; but you won't be able to control the fan speed through BIOS, only the PWM headers have speed control these days and that's for PWM fans only; the speed control on these fans is dictated by the motherboard but the hardware for the control is in the fans.

That said though, you WILL NOT hear these fans unless they are the only ones in your system, they really are that quiet. Put louder fans on the controller and just hook the Noctuas up to the motherboard and let them run at 100%
You sure about that? Most boards provide voltage control on at least some of their 3-pin headers, which do fine through splitters.
 
#11 ·
Quote:
Originally Posted by samwiches View Post

You sure about that? Most boards provide voltage control on at least some of their 3-pin headers, which do fine through splitters.
I'm fairly certain. I haven't seen many manual fan control options on recent motherboards. Especially since most of those headers will be rated at 2 Amps and for that you would need heatsinks on the control devices like you see on fan controllers. Most motherboards that offer manual control on it these days only offer it on the PWM controllers.
 
#12 ·
Z77 board probably works the same way as my Z68 Extreme3 Gen3 board that also has 4-pin Cpu fan 1 and 3-pin Cpu fan 2 headers. 4-pin header outputs PWM control and 3-pin header outputs same amount of voltage control. 0 % PWM signal on 4-pin = 0 V on 3-pin, 50 % on 4-pin = 6 V on 3-pin, 100 % PWM on 4-pin = 12 V on 3-pin
 
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