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New regulators on the way… woohoo. I’m still a bit surprised that the ramps board uses the arduino regulator for power. That really surprises me. I will put a heat sink on it after the new one is put in. The ramps wiki though clearly indicates that’s what it does though… the good news is I can power the mega from the ICSP header and it powers fine and the usb shows up nicely, so it’s all working at that point. tomorrow i’ll hack up a 5v supply to directly power it for a bit and make sure I didn’t fry the ramps board, though I really doubt that would be likely…