It doesn't need a different PSU, but my Intel supplied one (65W) buzzes a little bit, and apparently the one you can buy with the Abel is slightly lower wattage (36W), but still more than enough for the NUC's requirements under load so I thought I'd give it a shot to see if it might be slightly quieter.
Saw a 20% graphics improvement, but not sure its worth it for the noise increase personally.
sort the noise out and keep the performance !