NOTE: When replacing the system board, the CPU absorber sticker adhered onto the system board must be peeled off and
transferred over to the replacement system board.
Figure 63. System board callout
1. WWAN card
2. LCD connector
3. Touchscreen and IR-camera cable connector
4. M.2 solid state drive connector
5. USH daughterboard FFC connector
6. Battery cable connector
7. Click pad FFC connector
8. Coin-cell battery cable connector
9. Fan connector
NOTE:
For computers shipped without a WWAN card, a 4G/5G WWAN shielding cover and WWAN bracket (for 4G WWAN
card) is preinstalled 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: Install the heat-sink after installing the system board as there are two screws (M2x3) underneath the
heat-sink that secures the system board to the computer that needs to be installed first.
The following images indicate the location of the system board and provide a visual representation of the installation procedure.
Removing and installing Field Replaceable Units (FRUs)
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