System boardRemoving the system boardPrerequisites1. Follow the procedure in Before working inside your computer.2. Remove the base cover.3. Remove the M.2 2230 solid-state drive or M.2 2280 solid-state drive, whichever applicable.4. Remove the wireless card.5. Remove the heat sink for computers shipped with a NVIDIA GeForce RTX 2050 Ti graphics card or heat sink for computersshipped without a discrete graphics card, whichever applicable.About this taskNOTE: Before removing the base cover, ensure that there is no SD card installed in the SD card slot on your computer.NOTE: The system board can be removed and installed along with the heat sink, when you replace the palm-rest andkeyboard assembly. This simplifies the removal and installation procedure and also prevents damage to the thermal bondbetween the system board and heat sink.NOTE: Device Encryption will be triggered when either the system board or storage (SSD) is replaced. Refer to BitLockerfor more information on suspending BitLocker.The following image(s) indicate the location of the system board and provides a visual representation of the removal procedure.1. Display cable connector2. Power-cable connector3. Battery-cable connector4. Keyboard-cable connector5. Touchpad-cable connector6. Keyboard-backlight cable connector7. Speaker cable connector8. I/O board-cable connector9. Fan-cable connectorRemoving and installing components 47