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If you have a fan controller that doesn’t use PWM, you won’t run into this issue, so no, not related.Thanks for the speedy reply guys, but that is how it was at default, power controlled. Tried it with RPM controlled as well with no benefit, including setting a minimum voltage with "hold minimum power ticked"
Just read the review of the AP182 here
The reviewer had some problems with his AP182s and a fan controller, causing squealing. He was using PWM however, I am not
Heres' the interesting bit from the review
"The FC5V2 uses pulse-width modulation (PWM), and at 70% or lower duty cycle the AP182 made a terrible squealing noise and ceased to report an accurate rpm. I tried remedying this by connecting the shorting loop, but that also had the same effect. Believing that the fan might be faulty I used the included rheostat controller which worked just fine. I asked Tony at SilverStone about this issue and he said that the AP182’s fan control IC dynamically adjusts its frequency to maintain a certain power draw. He speculated that the IC was increasing its operating frequency very high to compensate for the reduced PWM duty cycle coming from the FC5V2, which created the tachometer malfunction and terrible noise. Ultimately, I had to use the included rheostat controller for macro adjustments of the fan speed and could use my FC5V2 for fine adjustment only. If you have a fan controller that doesn’t use PWM, you won’t run into this issue"
I don't get the squealing! and have tried with and without the shorting loop. Any chance the issue is related to this?
Dieser Beitrag wurde bereits 2 mal editiert, zuletzt von »Pilo« (17. Mai 2013, 07:01)
Dieser Beitrag wurde bereits 1 mal editiert, zuletzt von »Pilo« (19. Mai 2013, 08:07)
Dieser Beitrag wurde bereits 2 mal editiert, zuletzt von »Pilo« (21. Mai 2013, 04:20)
I bump this thread bc I have exactly the same problem. In my case, I can get a bit lower, but at around 6.2V my fans also just stop. Has anybody found a solution for this meanwhile, or are these fans just incompatible?Right, I have tried the settings you advised, but unfortunately they do not resolve the issue. With further testing I can see that anything less the 6.5v and the fan stops, which gives me about 1250 rpm at a minimum. The current shown for each fan at this setting is wildly fluctuating between 0.11a all the way to 0.94a. Tried it with both RPM and Power controlled. Looks like I will have to message Silverstone and ask them about it or just use the rheostat provided
You are right - this was just confirmed with Silverstone. So, do not buy this fan if you actually want to control it by ANY 3rd party controller.There is noting to get this fixed since the fan itself is the problem.
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