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Old 11-23-2012, 02:23 AM   #1
dkm777
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Default Enermax T.B. Silence strange noise

Hi everybody,

I didn't like having to run a resistor to slow my intake fans down, so I bought a couple of Enermax T.B. Silence 12s. Performance wise at 900RPM they are just right - Fractal Design Define R3 has restrictive intakes and it doesn't make sense to have high RPM monsters there. But after a while I noticed that a strange ticking-like noise is coming from my PC. I tried the good old "stop the fan with your fingers without having them cut off" trick and found that when both T.B. Silences are running I get the noise, but with just one running it goes away. I tried cleaning and lubricating the bearings and they no longer make noise when spinning the blades with my fingers, but when running under power the noise is still there. Do I have bad motors or is it just the way these fans are? I went through my fair share of fans and found that low-RPM fans tend to have louder motors.
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Old 11-23-2012, 05:15 AM   #2
Blain
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Quote:
Originally Posted by dkm777 View Post
Hi everybody,

I didn't like having to run a resistor to slow my intake fans down, so I bought a couple of Enermax T.B. Silence 12s.
Using resistance isn't the only method available to slow fan rpm down.
Depending on the fan, undervolting can also be used for fan rpm control.
Have you tried dropping the voltage down to 7v?
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