Noctua nh-d14 fan speed problem

[Vennekilde]

i have just bought the noctua nh-d14 cpu cooler and i can't seem to get the cooler to change fan speed no matter what i do

it is constantly running with around 1300 rpm and it doesn't matter if i turn prime95 on to get the temperatures up.

it is connected to the cpu_fan connector on the motherboard

i have an asus rampage extreme II motherboard so i have also tried using the program called fan xpert, but that neither can change the fan speed

does anyone know what my problem might be

 

[lasher]

Have a read of this thread dude

http://forum.overclock3d.net/index....hl__+noctua++molex__fromsearch__1#entry365348

you are running without the reducer? ( fan speed ) straight of the mobo header?

Whats the problem? You want to increase the speed or lower it?

 

[Vennekilde]

Have a read of this thread dude

http://forum.overclock3d.net/index....hl__+noctua++molex__fromsearch__1#entry365348

you are running without the reducer? ( fan speed ) straight of the mobo header?

Whats the problem? You want to increase the speed or lower it?

yes i am running it straight of the mobo header

and my problem is that i have no way of controlling the fan speed else than putting on the reducers, i would like the motherboard to regulate the speed of the fans instead of it just running with a constant fan speed.

also i read the other thread but wouldn't that method with a molex make it run at the same speed all the time? also i didn't receive it with my product

this might answer my problem, can it even be regulated by the motherboard? i have searched a little and most of what i have read indicate that you can't

 

[ionicle]

buy a fan controler?

 

[tinytomlogan]

You just need to play in your bios or correctly take the fans off the mobo and connect to molex on your PSU with the fan speed adapeters

 

[ionicle]

i have all my fans hooked up to a fan controler, its simple, turn them up when im using the pc, and its under stress,

turn them down when i sleep, and when the pc's load drops ...simple

 

[tinytomlogan]

i have all my fans hooked up to a fan controler, its simple, turn them up when im using the pc, and its under stress,

turn them down when i sleep, and when the pc's load drops ...simple

I just have mine on silent all the time

 

[ionicle]

if i leave mine on low while im doing things on the comp, it hits 100*C and shuts off, so i dont bother ... lol

 

[Vennekilde]

i chose to just go with the reducers and my cpu have not been over 60 degrees since and i don't even notice it at all, so i'll just keep it like that.

anyway thanks for all the replies.

 

[Stryker64]

The reason why your motherboard might not be able to control is due to the fact that Noctua don't use PWM fans, where the motherboard turns power on and off to the fan to adjust to speed, which cause a humming, so Noctua decided to go around this by making the only way to adjust fan speed with voltages. Your motherboard still should be able to do this, and this is a quote from the Noctua Website.

Can I run Noctua fans on 4-pin PWM connectors and use my mainboard’s automatic fan controller?

You can simply connect our fan's 3-pin connector to the 4-pin PWM sockets of today's mainboards so that the fourth pin that transmits the PWM signal is left blank (due to the shape of the connector, there's no danger of reversing polarity). Most current mainboards are capable of controlling fans not only via PWM, but also by adjusting the supplied voltage. In some cases, this may require you to change BIOS options like "Fan Control Mode" from "PWM" to "Voltage" or "Analog". Please consult your mainboard's manual in this regard. However, most current mainboards use an "auto" setting by default that automatically chooses PWM or voltage based regulation according to the connected fan. Automatically controlling the fan speed may not possible on mainboards that pulse the power rather than lowering the fan voltage.

Hope this helps.