well  I have lots of space I could fit 100 units easy

but I have 40kwatts of cheap power.

so getting close to 800 watts and 10000gh is a good goal for me and an s9i.

I settled in at freq 500 cause it gives close to 10000 gh

so all 3 boards have freq 500

I know that a board sometimes is a good over clock board
I know that a board sometimes is a good under clock board
much like a cpu some do better in one direction than another.

so if I can do 800 watts and 10000 gh I can run  50 x 800 = 40kwatts and 500th

my deal is 50-50 spilt of coins so 250th free hash

the location can fit 100 units but solar will only provide 40kwatts 24/7.

I set freq 500 on 3 boards and 8.7 volts on 3 boards

I kept dropping volts

hoping to get to 10000gh and 800 watts

board 0 did not work well at 8.0 volts it gives 3000 gh

board 1 gave 3400 gh at 8.0 volts
board 2 gave 3400 gh at 8.0 volts

so that was 815-820 watts and 9800 gh about 83 watts a th

I pushed board 0 to 8.1 volts

and I got
board 0 3240 gh   8.1
board 1 3400 gh   8.0
board 2 3400 gh   8.0

this is 10040gh at 815-825 watts or  81.17-82.17 watts a th

since I have 40 kwatts of cheap power runing 50 of these will be about 41.25 kwatts

I should run 48 of them   that is 39.6 k-watts.

The location can do 100kwatts but the 60kwatts over the solar array cost 11 cents a kwatt and don't pay to do.

Since I have lots of space I will have idle gear to add on if price spikes.