(thought it wouldn`t be so hard to answer the question 10+5 but none of my entries were accepted).
Thanks for bringing up this topic!
As discussed my proposals are:
The main idea was to show an overview of system component status (e.g. CPU) indicated e.g. by a green dot (or something)
After clicking on the section an accordion opens with detailled information and a graph.
The limits are edited via >Settings. The settings are organized in tabs.
For system specific limits the user selects whether he wants to be informed if a certain value is either undercut or exceeded.