ok..this is something..but has anyone put it to work and measured the sound levels? i would for sure use another psu if their sounds like a helicopter. 60 db is ok if this is true.
I use an HP 750W server PSU with my A9 and set the performance setting to "performance." (No other setting changes.) My sound meter shows a constant 49 db for the A9 and PSU together. Put another way, this thing is really quiet.
When it first boots up, it is loud because the fan ramps up to 100% or something. But then it settles down to 15% and the 49 db level.