DEEPCOOL AIO LS 520 SE all connector connected same issue. Pump automatically goes to 2550 rpm from 3100 and starts make this noise, in bios have it on DC and not running any custom software.
View: https://www.youtube.com/watch?v=1O7ablhe6Co
other users reporting same issues on amazon
View: https://imgur.com/a/viKt7nT
other users reporting same issues on amazon
View: https://imgur.com/a/viKt7nT
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