Something we should consider the temperature of the processor, more in the summer days because the ambient temperature rises and therefore the temperature of the computer, and especially if you didn't do maintenance.
I show 2 options that are installed from the repositories for Debian.
OPTION 1
Installation:
aptitude install lm-sensors
Use:
$ sensors
This is an option to display the temperature on the console quickly.
OPTION 2
Installation:
aptitude install xsensors
Use:
$ xsensors
