Dell Vostro 5490 Service Manual - Page 60
heat sink.
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7. Remove the M.2 2230 SSD or M.2 2242 SSD or M.2 2280 SSD. 8. Remove the memory. 9. Remove the WLAN. 10. Remove the input and output board. 11. Remove the system fan. 12. Remove the power-adapter port. 13. Remove the touchpad. 14. Remove the system board. NOTE: The system board can be removed and installed together with the heat sink attached, when replacing the palm-rest assembly. This simplifies the procedure and avoids breaking the thermal bond between system board and heat sink. 15. Remove the power button or power button with fingerprint reader. 16. Remove the display assembly. About this task After performing the preceding steps, you are left with the palmrest. Next steps 1. Install the display assembly. 2. Install the power button or power button with fingerprint reader. 3. Install the system board. 4. Install the touchpad. 5. Install the power-adapter port. 6. Install the system fan. 7. Install the input and output board. 8. Install the WLAN card. 9. Install the memory. 10. Install the M.2 2230 SSD or M.2 2242 SSD or M.2 2280 SSD. 11. Install the speakers 12. Install the coin-cell battery. 13. Install the hard drive. 14. Install the battery. 15. Install the base cover. 16. Follow the procedure in After working inside your computer. 60 Removing and installing components
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