Where is the chassis fan on a computer?

Related questions

1. Why do we need PWM?
2. Can 3 pin fan be controlled?
3. What is a chassis fan connector?
4. How is fan speed controlled?
5. Can I use a CPU fan header for a case fan?
6. What is SYS fan on motherboard?
7. Can I connect a 3 pin fan to a 4 pin connector?
8. How do I connect 4 pin fan to Molex?
9. How many fans can you connect to a motherboard?
10. What does a PWM fan mean?

Tags

1. #inside
2. #exhaust
3. #carcass
4. #front
5. #chassis
6. #rarely
7. #bottom
8. #mounts
9. #either