Weird issue with CF120 fans

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Joined
18 Nov 2020
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299
Hi All

I have a deepcool castle 360 rgb v2 AIO cooler keeping my 5950x (semi cool).

I've had an issue with one of the AIO fans generating a noise which isn't normal. I've been in touch with deepcool and they sent me a brand new replacement single fan.

My AIO has always been super loud.. even with a fan curve... But I've always put that down to the 5950x running very hot.

I've noticed that when plugging this new single fan in to just test separately it runs quieter then those attached to AIO and sticks to it's rated fan speeds, which are 500-1500rpm.

The AIO fans attached seem to run well into 1700rpm speeds and are pretty damn loud.

Not too sure what is going on.

AIO fans as connected to CPU_Fan1 with the pump obviously running on Pump_fan1 (the pump itself runs as it should).

Any help/advice appreciated.
 
Just noticed the Ratings for the AIO fans are up to 500-1800rpm+10%

Still doesn't explain why they sound so loud considering they're rated at a maximum ≤30 dB(A)
 
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