Note: When unplugging the external handset, see the following instructions: 
Press the plastic clip on the plug forward.
Hold the clip and remove the cable from the connector.
Display panel overview
The diagnostics device consists of an LCD display and 5 navigation buttons.
1  LCD display
2  Scroll buttons (up/down/left/right) 
Press the scroll buttons to locate and select system 
information.
3  Select button  
Press the select button to select from the options in the 
menu.
28 ThinkSystem ST650 V2 Setup Guide