Dell Precision 3650 Tower, Service Manual, Page: 45 / 70

25.
26.
27. Hard drive fan connectors
28. Front panel audio connector
29. Internal speaker connector
30. M.2 PCIe SSD connector
31. Full Height PCIe x4 slot (open-ended)
32. PCI-32 slot
33. Full Height PCIe x16 slot
34. M.2 PCIe SSD connector
35. Processor fan connector
36. Processor socket
37. Optional video card connector
38. USB-C connector
Removing the system board
Prerequisites
1. Follow the procedure in before working inside your computer .
NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup
program after you replace the system board.
NOTE: Replacing the system board removes any changes that you have made to the BIOS using the BIOS setup
program. You must make the appropriate changes again after you replace the system board.
NOTE: Before disconnecting the cables from the system board, note the location of the connectors so that you can
reconnect the cables correctly after you replace the system board.
2. Remove the side cover .
3. Remove the front bezel .
4. Open the PSU cage .
5. Remove the memory module .
6. Remove the WLAN .
7. Remove the / M.2 2280 SSD .
8. Remove the coin-cell battery .
9. Remove the graphics card .
10. Remove the processor fan and heat-sink assembly .
11. Remove the processor .
About this task
The following images indicate the location of the system board and provide a visual representation of the removal procedure.
Disassembly and reassembly 45