Dell OptiPlex E1 Reference And Installation Manual page 106

6-12 Dell OptiPlex E1 Managed PC Reference and Installation Guide
AC power. In this case, you must enter the System Setup program and reset the con-
figuration options.
Use the following procedure to replace the system battery with another CR2032 coin-
cell battery:
If the settings are lost while you are replacing the battery, refer to your written or
printed copy of the system configuration information to restore the correct set-
tings. See Chapter 2, "Using the System Setup Program," for instructions.
The battery (see Figure 6-1) is mounted in a socket labeled "BATTERY," in the
front-right corner of the system board (as you face the front of the system).
Pry the battery out of its socket with your fingers or with a blunt, nonconductive
object, such as a plastic screwdriver.
Orient the battery with the side labeled "+" facing up (see Figure 6-10). Then
insert the battery into the socket, and snap it into place.