User Manual

Table Of Contents
Major components of OptiPlex 5400 All-in-One
The following image shows the major components of OptiPlex 5400 All-in-One.
1. Stand 2. Bottom cover
3. Heat sink 4. System fan
5. Processor 6. Memory module
7. M.2 2230/2280 solid-state drive 8. Rear-I/O bracket
9. Side-I/O board 10. Speakers
11. Audio board 12. Display panel
13. Display-assembly base 14. Middle frame
15. Camera-assembly door 16. Power-supply unit (PSU)
17. System board 18. System-board shield
19. Camera assembly 20. Wireless card
21. PSU fan
NOTE: Dell provides a list of components and their part numbers for the original system configuration purchased. These
parts are available according to warranty coverages purchased by the customer. Contact your Dell sales representative for
purchase options.
12 Removing and installing components