Dell Vostro 2420 (Mid 2012) - Manual (Page 19)

Installing the Hard Drive
1. Install the hard-drive bracket to the hard drive.
2. Tighten the screw that secures the hard-drive bracket.
3. Place the hard drive in its compartment and slide it towards the SATA connector to secure it to the system board.
4. Install:
a) palmrest
b) keyboard
c) battery
5. Follow the procedures in After Working Inside Your Computer .
Removing the Wireless Local Area Network (WLAN) Card
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove:
a) battery
b) keyboard
c) palmrest
3. Disconnect any antennae connected to the WLAN card.
4. Pry the latch to release the WLAN card from its compartment.
5. Remove the WLAN card from the computer.
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