System Board Layout - Dell OptiPlex 7040-Small Form Factor Owner's Manual

System board layout

1. PCIex16 connector
3. RJ-45/USB 2.0 connector
5. PS2 keyboard/MS connector
7. DisplayPort connector
9. Line-out connector
11. Intrusion switch connector
13. Processor
15. Memory module connectors
17. Power switch connector
19. System fan connector
21. Universal audio jack
23. USB 3.0 connector
25. SATA0 connector
27. Internal speaker connector
29. Internal USB connector
31. Coin cell battery
26 Removing and installing components
2. PCIex4 connector
4. USB 3.0 connector
6. Serial port connector
8. HDMI connector
10. CPU power connector
12. VGA daughter board connector
14. CPU fan connector
16. M.2 socket3 connector
18. Media card reader connector
20. Hard drive activity LED
22. USB 2.0 connector
24. ATX power connector
26. SATA2 connector
28. Hard drive and optical drive power cable connector
30. SATA1 connector