Dell Inspiron 7490 P115G, Service Manual

Page: 47 / 81

Steps
1. Align and place the power button with fingerprint reader on the palm-rest assembly.
2. Adhere the tapes that secure the finger-print reader cable and the fingerprint-reader board to the keyboard.
3. Close the latch and connect the power-button cable to the fingerprint-reader board.
4. Replace the two screws (M1.4x2.3) that secure the power button with optional fingerprint reader to the palm-rest and keyboard
assembly.
Next steps
1. Install the I/O board .
2. Install the fan (discrete graphics card) or fan (integrated graphics card) , whichever applicable.
3. Install the battery .
4. Install the base cover .
5. Follow the procedure in After working inside your computer .
System board
Removing the system board
Prerequisites
1. Follow the procedure in before working inside your computer .
2. Remove the Nano-SIM card tray .
NOTE: The Nano-SIM card slot is available in your computer, depending on the region and configuration you ordered.
3. Remove the base cover .
4. Remove the battery .
5. Remove the M.2 2280 solid-state drive/Intel Optane or M.2 2230 solid-state drive , whichever applicable.
6. Remove the fan (discrete graphics card) or fan (integrated graphics card) , whichever applicable.
7. Remove the heat sink (discrete graphics card) or heat sink (integrated graphics card) , whichever applicable.
Removing and installing components 47