Working on Your Computer

Before Working Inside Your Computer

Use the following safety guidelines to help protect your computer from potential damage and to help to ensure your personal safety. Unless otherwise noted, each procedure included in this document assumes that the following conditions exist:

•You have performed the steps in Working on Your Computer.

•You have read the safety information that shipped with your computer.

•A component can be replaced or--if purchased separately--installed by performing the removal procedure in reverse order.

WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/ regulatory_compliance.

CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.

CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface, such as a connector on the back of the computer.

CAUTION: Handle components and cards with care. Do not touch the components or contacts on a card. Hold a card by its edges or by its metal mounting bracket. Hold a component such as a processor by its edges, not by its pins.

CAUTION: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable itself. Some cables have connectors with locking tabs; if you are disconnecting this type of cable, press in on the locking tabs before you disconnect the cable. As you pull connectors apart, keep them evenly aligned to avoid bending any connector pins. Also, before you connect a cable, ensure that both connectors are correctly oriented and aligned.

NOTE: The color of your computer and certain components may appear differently than shown in this document.

To avoid damaging your computer, perform the following steps before you begin working inside the computer.

1.Ensure that your work surface is flat and clean to prevent the computer cover from being scratched.

2.Turn off your computer (see Turning Off Your Computer).

3.If the computer is connected to a docking device (docked) such as the optional Media Base or Battery Slice, undock it.

CAUTION: To disconnect a network cable, first unplug the cable from your computer and then unplug the cable from the network device.

4.Disconnect all network cables from the computer.

5.Disconnect your computer and all attached devices from their electrical outlets.

E5520M, 5520, E5520 specifications

The Dell 5520 series, which includes the E5520 and E5520M models, represents a blend of performance, reliability, and advanced features suitable for both personal and professional use. These laptops have garnered attention for their sturdy build quality and focus on productivity.

The Dell 5520 series is powered by Intel's Core processors, ensuring smooth multitasking and efficient performance. The E5520 features the second generation of Intel Core processors, which offer improved power efficiency and graphics capabilities. This makes the laptop suitable for various tasks, from office work to multimedia consumption.

One of the standout features of the E5520 is its expansive display. The laptop typically comes with a 15.6-inch screen, providing ample real estate for viewing documents, spreadsheets, and presentations. The LED-backlit display delivers bright visuals with excellent color accuracy, enhancing the overall user experience, whether for work or entertainment.

The design of the Dell 5520 series also prioritizes durability. The laptops are built with a chassis that meets military-grade specifications, providing resistance against various environmental factors, including vibrations, humidity, and extreme temperatures. This durability makes the E5520 series suitable for professionals who are often on the move.

In terms of connectivity, the E5520 models are equipped with multiple USB ports, including USB 3.0 for rapid data transfer. An HDMI output is also present, allowing users to connect the laptop to external displays for presentations or larger media viewing. Additionally, the inclusion of an integrated webcam and microphone supports video conferencing needs, making it a practical choice for remote work.

Security features are another highlight of the Dell 5520 series. With options for biometric login through fingerprint readers, users can ensure their data remains secure. Furthermore, Dell's Data Protection suite offers robust security measures to safeguard personal and professional information.

Battery life is a crucial characteristic of any laptop, and the E5520 does not disappoint. The series typically provides a solid battery performance, allowing users to work unplugged for extended periods. This mobility factor is essential for those who often find themselves away from a power source.

With a variety of storage options, including HDD and SSD configurations, users can choose a setup that suits their needs, balancing capacity and speed as required. The Dell 5520, E5520, and E5520M series laptops stand out as reliable workhorses for various users, offering a combination of performance, durability, and features that cater to modern demands. Whether for business or personal use, the Dell 5520 series remains a commendable choice in today’s laptop market.