Dell Vostro 5390 Service Manual - Page 47
System board, Removing the system board
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1 Align and place the power button with fingerprint reader on the palm-rest and keyboard assembly. 2 Replace the screw (M1.6x2) that secure the power button with fingerprint reader to the palm-rest and keyboard assembly. 3 Connect the fingerprint-reader cable to the fingerprint-reader board and close the latch to secure the cable. 4 Align and place the power-button bracket on the palm-rest and keyboard assembly. 5 Replace the screw (M1.6x2) that secure the power-button bracket to the palm-rest and keyboard assembly. 1 Install the I/O board. 2 Install the fan. 3 Install the WLAN card. 4 Install the battery. 5 Install the base cover. 6 Follow the procedure in After working inside your computer. System board Removing the system board 1 Follow the procedure in Before working inside your computer. 2 Remove the base cover. 3 Remove the battery. 4 Remove the M.2 2280 solid-state drive or M,2 2230 solid-state drive, whichever applicable. 5 Remove the WLAN card. 6 Remove the fan. 7 Remove the heat sink. The following image indicates the location of system board and provides a visual representation of the removal procedure. Removing and installing components 47
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