Dell Latitude 5490, Руководство по обслуживанию

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System board
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 you have made to the BIOS using the BIOS setup program.
You must make the appropriate changes again after you replace the system board.
2. Remove the stand .
3. Remove the cable cover (optional).
4. Remove the back cover .
5. Remove the hard drive .
6. Remove the system-board shield .
7. Remove the memory modules .
8. Remove the wireless card .
9. Remove the M.2 2230 solid-state drive .
10. Remove the M.2 2280 solid-state drive .
11. Remove the heat sink .
12. Remove the processor .
13. Remove the coin-cell battery .
14. Remove the bottom cover .
15. Remove the rear-I/O bracket .
About this task
The following image indicates the connectors on your system board.
Removing and installing components 59