Did you try each of the 3 settings?
Hi, I have 2x Mediasonic ProBox HF2-SU3S2 4 Bay 3.5” SATA HDD Enclosures. One has 4x HDD's in it all 8TB and the second has 2x HDD in it one 8TB and one 4TB. When I was first using these units they were dead quiet and the enclosure fan would only run and be noticeably loud if I was actually using the HDDs in them such as transferring files and watching movies. And then when I stopped using them, they would be dead quiet. I recently purchased a new PC and now, as soon as I turn them on, the fan starts spinning on both enclosures as if the hard drives are in use but they are not. How can I troubleshoot this, to get the fans and hard drives (I'm guessing) to stop being active? I'm running Windows 10.