I tried the 190 OC and it seems to be working on 2 of my FPGAs. 2 COM ports are detected (22,23 for me). The weird thing is see the LEDS light up on 4 of the FPGAs as work is found, but MPBM is only reporting work from 2 of the FPGAs. 
Guess it's the same issue I have regardless of which bitstream I'm using. I'm only getting work from 2/4 of the FPGAs. Any help would be greatly appreciated. Thanks!
Guess it's the same issue I have regardless of which bitstream I'm using. I'm only getting work from 2/4 of the FPGAs. Any help would be greatly appreciated. Thanks!
You will only get work on 2 comms per board. The only way to analyze whether it's working is to look at the accepted jobs, U/m and what your pool reports.