The HQ is not like the other SharksHead modules in that it runs a small computer, a mini version of a laptop or a desktop, and it should not have the power removed without first performing its shutdown procedure.

To shut down HQ, go to the Control page and select Mo 0 – HQ. There you’ll see a Shutdown HQ link at the top of the page:

Hit the link and wait 30 seconds, then you may remove the power from HQ.