confused on the fully automatic PWM speed control for NF-F12 !!

west1980

west1980

west1980

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could someone explain how would I use the fully automatic PWM speed control on the NF-F12 ?

I have the noctua NH-D14 and swapped the NF-P12 for the NF-F12.

I have no Idea how I would get it to use automatic pwm fan control.

I used the y-splitter cable to connect my NF-P14 and the NF-F12 to the 4pin header on my motherboard.

dont know what to do next?
 
OLDPHART said:
Hi, you need this cable Akasa AK-CB002 PWM Fan Splitter Cable, but also the pwm fans must be the same - 2xNF-F12 and set to PWM in the Bios.

http://www.overclockers.co.uk/showproduct.php?prodid=CB-031-AK&groupid=1929&catid=153&subcat=
Click to expand...

if you only want Y for 2 fans:
http://www.overclockers.co.uk/showproduct.php?prodid=CB-071-AK
uses motherboard power . Oldpharts in basically same as what I'm using 2 of for 7 fans.
http://www.overclockers.co.uk/showproduct.php?prodid=CB-070-AK
Had a problem with wires breaking off at plugs and socket.. caused by heatshrink stiffening wire before plug/socket but not securing wire to plug / socket. Fixed problem by heatshrinking wires onto socket/ plug.

Oldphart's linked one would probably not suffer from above problem.
 
Pretty sure you can use it with different fans but only one will be giving rpm signal to motherboard to control the PWM pulse signal from motherboard back to fan. I'm running 7 fans on one PWM signal..2 different kinds... TY-140s (900-1300rpm) and FN-053 (500-1500rpm)... and everything is fine. Fan rpm is from CPU intake fan. Using middle fan on CPU caused fans so osculate rpm and was annoying.
 
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west1980 said:
I have the P67A-GD65 mobo Im not sure what to change in the hardware monitoring section
Click to expand...

it is called something like "target cpu temp" or something and you change that

when the cpu hits the value, it will ramp up accordingly

i have mine set to 50 degrees just for reference but it will depend on your temps
 
there are 2 pwm fan headers on my mobo!

CPU fan & sys fan 1

photo.jpg
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how should I set the CPU min.fan speed?

when I check msi control centre all fans are on auto

CPU fan idles around 860rpm

system fan1 idles 857

system fan 2 idles 870

dod I still need a pwm fan splitter cable?
 
I have done exactly what you have...D14 with two nf-f12's


the nf-f12's come with y-connectors and noise reduction resistor cables in the packs.


Take one y-cable and attach it to the CPU fan header ...then attach the noise reduction cables (one on each of the Y splits) Then attach the fans after.


DO NOT PUT A SINGLE NOISE REDUCER CABLE BEFORE THE Y-CABLE!

I have mine idleing around 620-640 (really low) and temps are usually 33 idle celcius for a 4.5Ghz i5 2500K

so you could set your minimum fan speed to 650 ish if you want.

http://imgur.com/FBFXR
 
Do you not have the Y-splitter that came with the NF-F12's.........you should have 2 of them if you bought two fans....one more than you actually need lol :p
 
Take one y-cable and attach it to the CPU fan header ...then attach the noise reduction cables (one on each of the Y splits) Then attach the fans after.


DO NOT PUT A SINGLE NOISE REDUCER CABLE BEFORE THE Y-CABLE!

is that safe that way? attach a noise reduction cable to each Y split?

I have a NF-F12 and a NF-P14 not 2 NF-F12's

is it better to have NF-F12 instead of a NF-P14 ?
 
west1980 said:
Take one y-cable and attach it to the CPU fan header ...then attach the noise reduction cables (one on each of the Y splits) Then attach the fans after.


DO NOT PUT A SINGLE NOISE REDUCER CABLE BEFORE THE Y-CABLE!

is that safe that way? attach a noise reduction cable to each Y split?

I have a NF-F12 and a NF-P14 not 2 NF-F12's

is it better to have NF-F12 instead of a NF-P14 ?
Click to expand...

yup...safe that say (noctua d14 manual says so...and gives the same warning as I did)

The NF-F12 is the newer generation fan...to improve on their old NF-P12 model. So i suppose in that sense it is better yeh. To be honest, if you were running a P12 and a F12 both on the same Y-cable it wouldnt be the end of the world... difference in fan speeds would be marginal.....it's only a problem if you start mixing different voltage/current fans or different diameter fans i.e a 120 and 140mm fan....BUT you can solve that problem by having different voltage reducer cables (resistors) for each fan. Hence why the D14 kit has a different voltage reducer cable for the 140mm fan to the 120mm.


ah just noticed your question is between the (0p14 and a f12) not a (f12 and p12) The 140mm helps cool the motherboard as well as heatsink..thats an advantage..and technically shoudl be quieter than a standard 120mm fan as it has to spin slower to shift the same amount of air.....

but....the nf-f12s are super quiet... I cant hear mine gaming or anything....only if i torture test it with prime.

i'd personally go for the P14 and the nf-f12 as the combo on the heatsink...then use the p12 as an rear exhaust fan.

might try a crazy idea over the weekend:
I got another set of fan clips from noctua by asking nicely...going to put 2* nf-f12s on the heatsink with a p14 also...triple fan! then have the p12 as a rear exhaust...overkill....but otherwise fans are just sitting in a draw being of no use :p
 
by ataching to each y-split...i meant..dont put them before the y-splitter cable....put them only AFTER the y-split cable...and youd put two...one for each fan
 
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