Dell Latitude D820 Technical Manual page 68

2. If the computer is connected to a docking device (docked), undock it. See the documentation
that came with your docking device for instructions.
3. Connect the computer to an electrical outlet.
4. Turn on the computer. When the DELL logo appears, press <F12> immediately. If you wait too
long and the Windows logo appears, continue to wait until you see the Windows desktop.
Then shut down your computer and try again.
5. When the boot device list appears, highlight the device from which you want to boot and press
<Enter>.
The computer boots to the selected device.
The next time you reboot the computer, the previous boot order is restored.
Changing COM Ports
Serial Port, which is located in the Onboard Devices category, allows you to map the serial port
COM address or disable the serial port and its address, which frees computer resources for another
device to use.
Enabling the Infrared Sensor
1. Locate Fast IR under Onboard Devices.
NOTE: Ensure that the COM port that you select is different from the COM port assigned to the
serial connector.
2. Press <Enter>.
3. Use the arrow keys to select the infrared COM port setting.
4. Press <Enter>.
5. Follow the instructions on the screen.
After you enable the infrared sensor, you can use it to establish a link to an infrared device. To set up
and use an infrared device, see the infrared device documentation and
Center.
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