First Smoke

Ok click bait, no real smoke but real parts failing. First, got a scope, thanks to Kenny, and began probing things. I made some errors. I can control the 5V power and turn it one and off so power savings modes here we come. But.. I left the I2C but attached to the unpowered 5V part of the board. So it wont work when 5V is disabled. I always enabled the 5v and I see better signals on the I2C. But, (hey bold cool) while sittign on my bench running the boards just stopped. The usb 5v is off, off off. So something is shorting it out. Smoke would be nice then I would know where to look.