•Verify that the device drivers do not conflict with the program.

•If necessary, uninstall and then reinstall the program.

BA C K U P Y O U R F I L E S I M M E D I A T E L Y

US E A V I R U S - S C A N N I N G P R O G R A M T O C H E C K T H E H A R D D R I V E , F L O P P Y D I S K S , O R CD S

S A V E A N D C L O S E A N Y O P E N F I L E S O R P R O G R A M S A N D S H U T D O W N Y O U R C O M P U T E R T H R O U G H T H E Start M E N U

S C A N T H E C O M P U T E R F O R S P Y W A R E — If you are experiencing slow computer performance, you frequently receive pop-up advertisements, or you are having problems connecting to the Internet, your computer might be infected with spyware. Use an anti-virus program that includes anti-spyware protection (your program may require an upgrade) to scan the computer and remove spyware. For more information, go to support.dell.com and search for the keyword spyware.

R U N T H E DE L L DI A G N O S T I C S — See "Dell Diagnostics" on page 79. If all tests run successfully, the error condition is related to a software problem.

Memory Problems

Fill out the Diagnostics Checklist (see "Diagnostics Checklist" on page 139) as you complete these checks.

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

IF Y O U R E C E I V E A N I N S U F F I C I E N T M E M O R Y M E S S A G E

•Save and close any open files and exit any open programs you are not using to see if that resolves the problem.

•See the software documentation for minimum memory requirements. If necessary, install additional memory (see "Memory" on page 116).

•Reseat the memory modules to ensure that your computer is successfully communicating with the memory (see "Memory" on page 116).

•Run the Dell Diagnostics (see "Dell Diagnostics" on page 79).

IF Y O U E X P E R I E N C E O T H E R M E M O R Y P R O B L E M S

•Reseat the memory modules (see "Memory" on page 116) to ensure that your computer is successfully communicating with the memory.

•Ensure that you are following the memory installation guidelines (see "Memory" on page 116).

•Run the Dell Diagnostics (see "Dell Diagnostics" on page 79).

Network Problems

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

C H E C K T H E N E T W O R K C A B L E C O N N E C T O R — Ensure that the network cable is firmly inserted into both the network connector on the back of the computer and the network connector.

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Troubleshooting

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Dell PP04X manual Memory Problems, Network Problems
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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.
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