After Working Inside Your Computer - Dell Precision 5720 Owner's Manual

After working inside your computer

After you complete any replacement procedure, ensure that you connect any external devices, cards, and cables before turning on your
computer.
1 Replace the cover.
CAUTION: To connect a network cable, first plug the cable into the network device and then plug it into the
computer.
2 Connect any telephone or network cables to your computer.
3 Connect your computer and all attached devices to their electrical outlets.
4 Turn on your computer.
5 If required, verify that the computer works correctly by running ePSA diagnostics.
12 Working on your computer