that brick adapter i sent you definitely is not the power efficient one. i measured the power using a lab DC power supply , which should be fairly accurate, so you may see 28-30W there with that adapter. btw, the cheap fan i glued on the fpga would also draw 1W...
for sure you can use PC power supply for better efficiency. fyi, there are molex adapters like in the pic below. one can drive 2 miners no problme.
Thanks for the effort!
Op and I have exchange emails and we think we found the missing driver.
If you look at my screenshot above there isn't any port section in the device manager. I hope to square this away by 10 pm east coast time.
Sorry for delay, but I have to do some real world business.
Oh a 12 volt brick was provided and on idle the unit uses 3-4 watts on a kwatt meter.
I have the ability to feed the unit from a modded atx my guess is that will drop power use a lot as bricks suck for efficiency.
So if op is accurate about 25 watts with a brick I should drop that to 21 watts with an atx plat.