Dell Latitude D620 ATG Service Manual page 37

2. Insert the battery into the battery bay (see
3. Connect the AC adapter to the computer and to an electrical outlet.
NOTICE: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do so may result in
damage to the computer.
4. Turn on the computer.
NOTE: After replacing the system board, use the CD that accompanied the replacement system board to enter the computer Service Tag into the BIOS.
5. Insert the CD that accompanied the replacement system board into the appropriate drive and flash the system BIOS (see
instructions on the screen.
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Before Working Inside Your Computer).
Flashing the BIOS). Follow the