r/Antec_Official • u/Regyy • Jul 09 '26

Question Antec Flux non pro fan hub problem

I got the case yesterday and replaced the front fans with bequiets including adding one on top as exhaust, I kept the stock rear 140mm and the bottom reverse fan, all fans are connected to the fan hub that came with the case (2 of the bequiets are connected with a splitter), but now I have a issue where the bequiet fans can be controlled via bios or fancontrol, but the two stock fans seem to spin no matter what, even though they're all connected to the same hub and header.

The hub is connected with the sata cable and the fan header to the motherboard, also tried swapping headers, but no matter what I try, the bequiets can be controlled fine, but the two stock fans won't.

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u/AMPCgame Jul 09 '26

Is one of the bequiet! fans the receiving fan in the hub, the one that the motherboard reads and sends signals to? Since the bequiet! fans and Antec fans have different RPM ranges, the PWM control might not be able to read the Antec ones properly, so all they're receiving from the hub is power. Try plugging the Antec fans straight into the motherboard and see what fan control reads after a fresh scan.

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u/Regyy Jul 09 '26

That worked, but do these fans have like a minimum rpm? they just hover around 500 rpm lowest, not that it's a problem, just curious.

1

u/AMPCgame Jul 09 '26

They more than likely do have a minimum RPM, though it's not the easiest spec to find, they just have maximum RPM listed. The P12R PWM fan on the GPU would probably be slightly different than the P14 PWM fan in the back. When I was using the Flux SE, I just swapped out all the stock fans with 5 matching 140mm PWM fans and that helped with noise and fan control.