Would a problem with my power supply be the reason why my E3v2 keeps beeping and won’t load passed the startup screen? I’ve changed the motherboard to the 4.2.7 and have tried flashing the firmware on both the printer and the screen but no luck. Any solutions or troubleshooting ideas? I don’t know what else I’m missing or not checking, I’ve also changed the thermistor to the screw in type so not sure if that matters…