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Steps to prepare for internal computer work, including shutting down and disconnecting power.
Guidelines to protect yourself and the computer from potential damage during service.
Measures to prevent damage to sensitive electronic components from static electricity.
Steps to complete after internal computer maintenance, including reassembly and power connection.
Tools needed for component removal and installation procedures.
Details of screws used for securing various internal computer components.
Visual identification of the main components within the Inspiron 3020 desktop.
Procedures for removing and installing the left-side computer cover.
Procedures for removing and installing the front cover of the computer.
Procedures for removing and installing the optical drive.
Procedures for removing and installing the optical-drive bezel.
Procedures for removing and installing the computer's hard drive.
Procedures for removing and installing the power button assembly.
Procedures for removing and installing the graphics card.
Procedures for removing and installing memory modules.
Procedures for removing and installing the solid-state drive (SSD).
Procedures for removing and installing the wireless network card.
Procedures for removing and installing the coin-cell battery.
Procedures for removing and installing the wireless antenna modules.
Procedures for removing and installing the media-card reader.
Procedures for removing and installing the power-supply unit.
Procedures for removing and installing the fan shroud.
Procedures for removing and installing the processor fan and heat-sink assembly.
Procedures for removing and installing the computer's processor.
Procedures for removing and installing the system board.
Manages data flow between the computer's OS and attached devices.
Steps to access the BIOS setup utility by pressing F2 during boot.
Keys used for navigating and making selections within the System Setup utility.
Bypasses setup to boot directly to a specific device like optical drive or hard drive.
Accesses boot devices without changing the BIOS settings.
Configuration options for system hardware and behavior.
Security feature to protect system and BIOS access with passwords.
Resets BIOS to defaults, including computer date and time, to recover from boot issues.
Instructions to contact Dell support to clear system or BIOS passwords.
Procedures for updating the system BIOS using Windows or a USB drive.
Identifies your computer for accessing relevant support resources.
Performs a complete check of computer hardware for issues.
Indicates power supply status and hard drive activity.
Restores the system using Dell SupportAssist OS Recovery tool.
Procedure to resolve Wi-Fi connectivity issues by cycling power.
Removes residual static electricity from the computer for safety and troubleshooting.
Information and help via Dell website, My Dell app, and knowledge base.
Information on how to contact Dell support for sales, technical, or service issues.
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