Losing steps/position, again

[dazp1976]

Um!, no 5V supply to the BoB?, normally people sling a USB lead from the computer to the BoB, and the BoB salvages a 5V supply from that. Or, you can provide a 5V supply to the "PC 5V" supply on the board itself.

Edit: My bad, image 4A shows the BoB has a supply from somewhere.

I've got a similar BOB and spotted something too.
If you take your 5v from 'elsewhere' (bottom right of bob) and don't get it through the usb header it bypasses the boards protection circuits!! Caution needed.
It's recommended to use a bare ended usb cable from a psu to the board header in order to both avoid PC usb noise and keep board protection.

[Doddy]

It's recommended to use a bare ended usb cable from a psu to the board header in order to both avoid PC usb noise and keep board protection.

Have you a link to this recommendation - I have two identical cards in my machine fed from the local supply so I'm interested if I have a dormant problem or not.