Set system monitor thresholds

Select the Enable check box for the relevant system hardware if you have not already enabled it
Drag the threshold control slider up or down to increase or decrease the threshold value. There are two sliders available for each piece of system hardware shown in the threshold control, separating the Normal, Warning and Critical levels.
Once you have set the relevant thresholds levels, select File > Save from the menu.

An example of how a threshold control slider could be set. Drag the sliders up and down to increase or decrease any of the three threshold levels. Red indicates you have reached a Critical state, Yellow is a Warning state indicating that you are close to reaching the Critical state and Green indicates that things are at a normal state and within your selected threshold values.