Installing the system board
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image indicates the connectors on your system board.
1. Fingerprint reader FPC connector
2. WWAN-card connector
3. WLAN-card connector
4. M.2 solid-state drive connector
5. Touch-screen cable connector
6. eDP cable connector
7. IR-camera cable connector
8. Sensor daughter-board cable connector
9. Thermal-fan cable connector
10. Speaker cable connector
11. Audio daughter-board FFC connector
12. Battery cable connector
13. Keyboard FFC connector
14. Touchpad FFC connector
15. USH daughter-board FFC connector
16. LED daughter-board FFC connector
17. Coin-cell battery cable connector
NOTE:
For computers shipped without a WWAN card, a 4G/5G WWAN shielding cover and WWAN bracket (for 4G WWAN
card) is pre-installed to the computer. As a result, follow the steps in the WWAN card removal/installation section to
remove the WWAN shielding cover and WWAN bracket before removing the system board.
CAUTION: First remove the thermal module before removing the system board as there are two screws (M2x3)
underneath the thermal module that secure the system board to the computer.
The following images indicate the location of the system board and provide a visual representation of the installation procedure.
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Removing and installing components
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