Noctua Low Noise Adapter

[Prochaos]

Is "Noctua NA-SRC7 4-Pin PWM Low-Noise Adaptors, 3 pack" the only way to reduce your fans rpm without using a fan controller ?

For reference i have a 750D with
6 x Noctua NF-F12 IndustrialPPC 2000RPM IP67 PWM 120mm High Performance Fan
+
4 x Noctua NF-A14 IndustrialPPC 2000RPM IP67 PWM 140mm High Performance Fan

connected to Lamptron FC5 Fan Controller V3 5.25 inch

Cooling 2 x Sapphire Radeon R9 290 Vapor-X OC 4096MB GDDR5 PCI-Express Graphics Card

So as a novice i originally choose to connect them all via fan controller since i had the intention to just dial up and dial down the knobs when the gpus reached high temps but quite frankly all ive had to do is macro 3 msi afterburner profiles to set my 2 gpus fans to 30% 40% and 50% for when i play high intensive games. the knobs on the fan controller are soooooo sensitive i never bother touching them and often when i turn my pc on i have to reset 1 of the knobs back to its original rpm as for some reason it went back down to 0rpm.

So im thinking of scraping the fan controllers, sell it off and daisy chain all 10 fans to the psu via Noctua NA-SRC7 4-Pin PWM Low-Noise Adaptors, but i noticed these only reduce the rpm by 30% and i like to keep all my fans at roughly 1080-1140 rpm any more and the noise can get too high since my pc on on my disk 2 feet away from me. Are there any other choices ?

With somthing like http://www.overclockers.co.uk/showproduct.php?prodid=CB-070-AK
http://www.overclockers.co.uk/showproduct.php?prodid=FG-030-NC

 

[lesoudeur]

I did both successfully. Used the Akasa FLEXA FP5 and for those fans still spinning too fast added a Noctua NA-SRC7 into the connection. So some fans spin directly contolled by the CPU PWM, some side case fans run at an even more reduced rate, still run by the CPU PWM but with the added resistance of the NA-SRC7 to slow them down. Hope that makes sense.

 

[zuludawn]

I have just done the same with 3x Noctua NF-F12 IndustrialPPC 3000RPM 120mm on the front of a Corsair 540 case used a http://www.overclockers.co.uk/showproduct.php?prodid=cb-070-ak on the cpu header but am controlling the speed through gigabyte app center with system information viewer it allows you to set speeds on the fly and set different speed profiles. obviously you can use the fans in any configuration depends on how many pwn headers your motherboard has.



Or you can use the PWM in the Bios to set the speeds.

This is on a Gigabyte motherboard other manufacturers could have something similair.

 

[BattFink]

Hi

I've got 8 of those Noctua NF-F12 IndustrialPPC 2000RPM IP67 PWM 120mm Fans, connected via a swiftech PWM hub (so fans draw power directly from the PSU)

The low noise adapters you've listed don't work with those fans, they just sit there making a horrible clicking noise.

When I contacted Noctua about it they pointed me towards their website which says:

"Caution: Never use one Low-Noise Adaptor to slow down multiple fans. Always use one adaptor per fan.

Caution: The NA-RC7 adaptors are not compatible with Noctua’s industrialPPC series.

Caution: The NA-RC7 adaptor is designed for use with Noctua 4-pin fans (except industrialPPC series). While it may work with many other fans, use with third party fans is not officially supported by Noctua, is at the customer’s own risk and will void the warranty. The NA-RC7 adaptor is strictly not to be used with fans that draw more than 3W of power."

I ended up just using the motherboard PWM control to keep the fans at 600 rpm (whilst idling)