Dell Vostro 2421 (Early 2013) - Manual (Page 22)

Installing the Coin-Cell Battery
1. Place the coin-cell battery in its slot.
2. Install:
a) system board
b) wireless mini-card
c) palmrest
d) keyboard
e) access panel
f) battery
3. Follow the procedures in After Working Inside Your Computer .
Removing the System Board
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove:
a) battery
b) access panel
c) memory module
d) hard-drive assembly
e) SD card
f) optical-drive assembly
g) keyboard
h) palmrest
i) coin cell battery
3. Peel the tape that secures the display cable to the system board.
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