Dell OptiPlex 3020–Mini Tower - System Board Components

7. Follow the procedures in After Working Inside Your Computer .
System Board Components
The following image displays the system board layout.
1. SATA connectors
2. password reset jumper
3. front USB2.0 connector
4. internal USB connector
5. RTCRST reset jump
6. coin-cell battery
7. front audio connector
8. PCI-ex1 connector
9. PCI-ex16 connector
10. intrusion switch connector
11. system fan connector
12. processor socket
13. cpu power connector
14. PS2 serial port connector
15. cpu fan connector
16. memory connector
17. power switch connector
18. ATX power connector
19. HDD_ODD power cable connector
20. HDD_LED connector
21. speaker connector
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