So more testing.  I put 3 of these on a Win 10 Home x64 machine (Clean install, literally NOTHING on it) that has a 7 gen intel I-7 and seeing 55% CPU usage on that machine while running CGminer with 3 compac-f units set to the settings mentioned above (--gekko-compac-freq 400 --gekko-mine2 --gekko-tune2 60 --gekko-start-freq 300 --gekko-tune-up 85).   Only getting 190 - 200 mhz out of them with a 12 inch fan on high blowing at them from 2-3 inches away.

Is this high CPU utilization (55% of 7gen i-7) normal for just 3 units?