Adding an internal device usually through a plug-in card—is much more difficult than adding an external device primarily. That’s because you have to use a screwdriver and get “under the hood” of your system unit.

Follow these steps to add a new card to your system :

1. Turn off your computer, and unplug the power cable.
2. Take the case off your system unit
3. If the new card has switches or jumpers that need to be configured, do this before inserting the card into your system unit.
4. Find an open card slot inside the system unit and insert the new card
5. After the card is appropriately seated and screwed in, put the case back on the system unit, plug back in the power, and restart your system.
6. After Windows starts, it should recognize the new device and automatically install the appropriate driver.