Im using LX200V20’s with no problem. To incease performance I’m trying 2 LX200V30’s but these work soon after power up, then the main chip overheats and transmission cease - so I changed to the 2 LX200V50 EVB’s I have and I had exactly the same problem, I get the problem whether i power up with 12V through the power socket, or with 5V throo the microusb ports. Any suggestions?