2 limesdr behave differently. Is one faulty?

This is a follow-up of LimeSDR PCIe bandwidth and GQRX - #23 by ChrisLM, since I was hijacking another thread…

For memo:

@Zack, @andrewback, I raised the issue a month ago but, without any new for 14 days now, I begin to worry a little…
=> Is the limesdr faulty (despite it’s new)?
=> If so, does Crowdsupply or LimeMicro replace it? What is the procedure?

Crowd Supply will arrange to swap out if we can ascertain that it is indeed faulty.

@Zack, any suggestions before we arrange an RMA?

Replayed in the original thread.