Dell OptiPlex 7020 (Mid 2014) - Manual (Page 14)

3. Locate the coin-cell battery on the system board.
4. Press the release latch away from the battery to allow the battery to pop-up from the socket and lift
the coin-cell battery out of the computer.
Installing the Coin-Cell Battery
1. Place the coin cell battery in its slot on the system board and press until the release latch springs
back into place and secures it.
2. Install:
a. expansion card
b. cover
3. Follow the procedures in After Working Inside Your Computer.
Removing the Hard Drive
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the cover.
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