03-04-2021, 03:10 PM
Yes, Qnap 53D series use plastic chase which is great for sound isolation, but not that good for heat. Short term option would be to remove a case if NAS is located somewhere in a cabinet, otherwise adjusting fan speed would be louder but might decrease temperatures.Running two RAIDs are more resource-demanding and the CPU need to work harder. Also, additional cards block the airflow.Not much that can be done.I hope this helps.