![](/images/new-backgrounds/1270558/27055871x1.webp)
12.Close the expansion card retention latch, making sure that it snaps firmly into place.
13.Connect external cables to the installed card, if needed. Connect internal cables to the system board, if needed.
14.Replace the computer access panel.
15.Reconnect the power cord and turn on the computer.
16.Lock any security devices that were disengaged when the computer access panel was removed.
17.Reconfigure the computer, if necessary.
28 Chapter 2 Tower (TWR) hardware upgrades | ENWW |