Question Fan Hub

[wm3797]

Im using the Noctua NA-FH1 fan hub, I connected a back BeQuiet Pure Wings 2 120mm DC fan to FAN 1 Slot, as instructed, also connected the fan hub with the package-included NA-EC1 4pin PWM input cable to it and, in turn, to a motherboard CHASIS FAN HEADER. The other chasis fan header is for the front intake DC fan. I have also connected a SATA from the power supply to the fan hub. However, I can not control this back DC fan's speed, not even in BIOS, no matter the setting. There's no other fans in the case. Can you please tell me what is going on ?

ASUS PRIME Z390P
i7-9700K

 

[JohnBonhamsGhost]

I can not control this back DC fan's speed...Can you please tell me what is going on ?

if the BIOS has the option to select DC mode for this header then you can directly control the fan alone when connected to this header.
but not through a 4pin PWM hub.

DC mode & PWM mode use a different method of control, so they cannot be combined this way.

if they are new, you'd be better off returning the 3pin DC fans and getting 4pin PWM versions.

 

[triplex1]

Im using the Noctua NA-FH1 fan hub, I connected a back BeQuiet Pure Wings 2 120mm DC fan to FAN 1 Slot, as instructed, also connected the fan hub with the package-included NA-EC1 4pin PWM input cable to it and, in turn, to a motherboard CHASIS FAN HEADER. The other chasis fan header is for the front intake DC fan. I have also connected a SATA from the power supply to the fan hub. However, I can not control this back DC fan's speed, not even in BIOS, no matter the setting. There's no other fans in the case. Can you please tell me what is going on ?

ASUS PRIME Z390P
i7-9700K

when you connect fan hb like this or arctic 1-10 or thermaltake 1-10 first you put cpu hub in his position (it could be a different color or refer to you ''cpu'') , the others fan , the one cable (you have in package with hub) to cpu of motherboard and the sata cable.
all speeds are regulated by cpu , i have one Arctic 1-10 and I have set from bios to performance
Only PWM

 

[wm3797]

DC mode & PWM mode use a different method of control, so they cannot be combined this way.

I had these fans for a year-ish now. If I get a 3-pin cable, would I be able to control the DC fan's speeds , or the hub must require a 4-pin cable which means ill have to get PWM fans then?

 

[JohnBonhamsGhost]

If I get a 3-pin cable, would I be able to control the DC fan's speeds

you don't need to use the hub at all.
just plug the fan into the header that it would be using and bypass the hub entirely.
the hub would not be able to properly transfer this data for speed control.

4pin PWM motherboard headers can be set to use DC mode for a 3pin connection.
i imagine that is how the other be quiet! fan is being used?

 

[wm3797]

i imagine that is how the other be quiet! fan is being used?

Yes, it is but i want to add a couple more chasis fans. Thats why im using this noctua fan hub.

 

[JohnBonhamsGhost]

i want to add a couple more chasis fans. Thats why im using this noctua fan hub

i would recommend just replacing the rear 3pin be quiet! when you add these other fans then.
a group of 4pin fans could all share the hub.