You can download MyReef from DA's forum, you need to have a 2.0 SID (if you dont they use to do an upgrade for it without having to buy a new SID). So download the software, install it, open it up. Connect the SID only (its the USB to bus adapter that came with the system) you should see it in the SID in the modules on the left once you do that and its up to date with firmware, connect a bus cable from the SID to an open port on your system. All the modules will show up on the left. You will also see graphs on the left, left click on that and add a new graph, the screen is pretty much self explanatory on setting up what you want to graph, I never did anything with the min/max values the system will do that by it self. The only thing is this software needs to be connected and running in order to capture the data for the graphs. I use an old laptop and run VNC to it from where ever I am, thats why I have not bothered with the Net Module. The PC does not have to be anything special to run the software, I even set it up on a netbook a while ago for someone else.