System Board Layout - Dell OptiPlex 7020 Owner's Manual

a. processor
b. power supply
c. heat-sink assembly
d. expansion card(s)
e. memory
f. drive cage
g. optical drive
h. front bezel
i. cover
6. Follow the procedures in After Working Inside Your Computer.

System Board Layout

The following image displays the system board layout of the computer.
1. power connector
2. processor socket
3. system-fan connector
4. memory connectors ( SODIMM sockets)
5. power switch connector
6. coin-cell battery
7. system power connector
8. heatsink-fan connector
9. front USB 3.0 connector
10. front panel connector
11. HDD/ODD power connector
12. SATA connector
13. SATA connector
14. SATA connector
15. internal speaker connector
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