NOTE: To change the boot sequence on a one-time-only basis, see Performing a One-Time Boot.

The Boot Sequence page displays a general list of the bootable devices that may be installed in your computer, including but not limited to the following:

Diskette Drive

Modular bay HDD

Internal HDD

CD/DVD/CD-RW drive

During the boot routine, the computer starts at the top of the list and scans each enabled device for the operating system start-up files. When the computer finds the files, it stops searching and starts the operating system.

To control the boot devices, select (highlight) a device by pressing the down-arrow or up-arrow key, and then enable or disable the device or change its order in the list.

To enable or disable a device, highlight the item and press the space bar. Enabled items appear as white and display a small triangle to the left; disabled items appear blue or dimmed without a triangle.

To reorder a device in the list, highlight the device and then press <u> or <d> (not case-sensitive) to move the highlighted device up or down.

Boot sequence changes take effect as soon as you save the changes and exit the system setup program.

Performing a One-Time Boot

You can set a one-time-only boot sequence without entering the system setup program. (You can also use this procedure to boot the Dell Diagnostics on the diagnostics utility partition on your hard drive.)

1.Shut down the computer through the Start menu.

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 Windows Help and Support Center.

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Dell PP04X specifications Changing COM Ports, Enabling the Infrared Sensor, Performing a One-Time Boot

PP04X specifications

The Dell PP04X, commonly known as the Dell Latitude E6420, is a versatile and robust laptop that is designed for business professionals and power users alike. It combines performance, durability, and a wide array of connectivity options, making it a popular choice in the corporate world.

One of the standout features of the PP04X is its solid build quality. The laptop is constructed with a premium aluminum chassis paired with a magnesium alloy frame, ensuring it can withstand the rigors of daily use. The spill-resistant keyboard provides an added layer of protection against accidental spills, making this device a reliable option for users on the go.

The Dell PP04X is powered by Intel's second-generation Core processors, providing excellent performance for multitasking and demanding applications. With options ranging from Core i3 to Core i7, users can select the level of power they need for their specific tasks. The laptop supports up to 8GB of DDR3 RAM, which contributes to its ability to handle multiple applications simultaneously without compromising speed.

In terms of storage, the Latitude E6420 offers various configurations, including traditional hard drives (HDD) and solid-state drives (SSD), allowing users to balance performance and storage capacity based on their requirements. The inclusion of SSD options results in faster boot times and quicker file access, greatly enhancing overall productivity.

The display of the Dell PP04X is another highlight. It features a 14-inch HD screen with anti-glare technology, making it suitable for use in various lighting conditions, whether in a brightly lit office or while traveling. The high-resolution screen ensures crisp visuals, ideal for presentations and detailed graphic work.

Connectivity options on the Latitude E6420 are plentiful, featuring multiple USB ports, an HDMI output, and an ExpressCard slot for expandability. Additionally, users can opt for built-in mobile broadband capabilities to stay connected on the move.

Dell also places a strong emphasis on security in the PP04X. The laptop includes features such as a fingerprint reader, smart card reader, and optional TPM (Trusted Platform Module) for enhanced security, ensuring that sensitive information remains protected.

Overall, the Dell PP04X Latitude E6420 is an excellent choice for business users who require a durable and powerful laptop. With its blend of performance, security features, and connectivity options, it is well-suited to meet the demands of a fast-paced work environment. Whether for office use or travel, the PP04X provides a reliable and efficient computing experience.