How do I know if my CPU fan is working?

Related questions

1. What happens if CPU fan stops working?
2. How do I know if my computer fan is working?
3. Why is my PC fan not working?
4. How do I clean the fans on my computer?
5. What happens if CPU is not installed properly?
6. Why is my computer fan running high?
7. How do I set my CPU fan to ignore?
8. How do I increase CPU fan speed?
9. Why is the CPU fan not working?
10. Do you need water cooling if not overclocking?

Tags

1. #usually
2. #shown
3. #button
4. #temperature
5. #start
6. #check
7. #pressing
8. #restart
9. #corresponding
10. #option
11. #enter
12. #inspect
13. #during
14. #screen
15. #displays
16. #inside
17. #should
18. #settings
19. #visually
20. #computer