[mythtv-users] Desk Top Power

[Simon Hobson]

Michael Watson <michael at thewatsonfamily.id.au> wrote:

> There are many of the shelf products that can achieve this, often called a "smart switch/powerboard" or "energy saving switch/powerboard" that turn one or more plugs off/on depending on the load used by the master plug.

Or you can make one with a suitably rated relay. Power the relay coil off the 5V or 12V line and switch a mains feed with it.

Of course, in the "good old days" a PC power supply had a switched receptacle which was good for this. If you are adventurous, it should be possible to open up the PSU case and connect to the mains downstream of a mains relay (if it has one) - but this isn't something to be done lightly since there are lethal voltages present even when the PC is "switched off".