Now, I'm scared to test the mpcie expansion board ! because it doesn't have an external power connector. The board power supply is 3A, OP4 uses around 2,5A. I want to test a LTE modem, but the modem alone uses up to 2A (the expansion board supports modems since it has a sim card slot). I'm scared to test even without the sim. And even if I use a 6A power supply, can the OP4 power circuit handle this power ?
What could I do ?