Computer Restarts when Nano is connected

[virajvjoshi]

Hi, good people! (First post here)
I've been using Nanos for some fairly straightforward servo motor movement for a client project. After working on it without a hassle for 2 days, my computer now restarts every time I connect my Nano with a USB, and shows the error that I've attached in the image.

I've tried three different Nanos now, and the computer restarts with each of them!

I suspect this is a USB power issue. This happens when my Macbook is plugged in to power and even when it isn't.

Does it have to do with FTDI drivers maybe? I was messing around with them a while ago.

Thanks!

[pert]

Does your Nano use the FTDI chip or does it use the CH340 chip instead? That's the larger black chip on the bottom of the board. It will have either FT232RL or CH340 written on it.

[hammy]

Are you powering the servo(s) from the USB ? That may well be a problem