Why does my fan make so much noise?

Related questions

1. Why is the fan of my laptop so loud?
2. Why are my fans running so high?
3. Why is my laptop fan running so loud?
4. How can I tell how old my computer is?
5. How does a 3 wire fan work?
6. Why is my PC fan so loud all of a sudden?
7. Why is my fan so loud laptop?
8. How do I slow down the fan speed on my laptop?
9. What is GitHub used for?
10. Why is my PC fan running so loud?

Tags

1. #claim
2. #purchase
3. #often
4. #screws
5. #begin
6. #clicking
7. #proof
8. #tighten
9. #caused
10. #holder
11. #order
12. #noises
13. #within
14. #frame
15. #warranty
16. #blade
17. #asked
18. #noise
19. #loose
20. #check
21. #defect
22. #needed