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Dell OptiPlex 7480 All-In-One User Manual

Dell OptiPlex 7480 All-In-One
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OptiPlex 7480 All-In-One
Service Manual
Regulatory Model: W26C
Regulatory Type: W26C001/W26C002
May 2020
Rev. A00

Table of Contents

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Dell OptiPlex 7480 All-In-One Specifications

General IconGeneral
Display Size23.8 inches
RAMUp to 64GB DDR4
Operating SystemWindows 10 Pro
DisplayFHD (1920 x 1080)
Processor10th Gen Intel Core i3/i5/i7
StorageUp to 2TB HDD or 1TB SSD
GraphicsIntel UHD Graphics
PortsUSB 3.2 Gen 1, USB-C, HDMI, Ethernet
WirelessWi-Fi 6
Webcam720p

Summary

Safety Instructions

Before Working Inside Your Computer

Guidelines and preparation steps before performing any service inside the computer.

Electrostatic Discharge—ESD Protection

Information on the risks of electrostatic discharge and methods to prevent component damage.

ESD Field Service Kit

Details on the components and use of the Electrostatic Discharge (ESD) field service kit.

Transporting Sensitive Components

Instructions on safely packaging and transporting sensitive electronic components.

After Working Inside Your Computer

Steps to take to ensure the computer is properly closed and ready for operation.

Removing and Installing Components

Recommended Tools

List of tools required for performing component removal and installation procedures.

Screw List

A table detailing screw types, quantities, and images for various components.

Stand

Procedures for removing and installing the fixed, articulating, and height-adjustable stands.

Cable Cover—Optional

Instructions for removing and installing the optional cable management cover.

Back Cover

Detailed steps for removing and installing the computer's back cover.

Hard Drive

Procedures for removing and installing the system's hard disk drive.

Memory Modules

Instructions for removing and installing the system's memory modules (DIMMs).

System-Board Shield

Steps to remove and install the shield protecting the system board.

Solid-State Drive

Procedures for removing and installing M.2 2230 and M.2 2280 solid-state drives.

System Fan

Instructions for removing and installing the internal system fan.

Coin-Cell Battery

Steps for removing and installing the coin-cell battery for BIOS settings.

Wireless Card

Procedures for removing and installing the internal wireless network card.

Camera Assembly

Instructions for removing and installing the integrated camera module.

Bottom Cover

Steps for removing and installing the computer's bottom access cover.

Power-Supply Unit (PSU)

Procedures for removing and installing the internal power supply unit.

Power-Supply Fan

Instructions for removing and installing the fan associated with the power supply.

Heat Sink

Steps for removing and installing the heat sink assembly (UMA and discrete configurations).

Processor

Detailed instructions for removing and installing the CPU.

Rear-I/O Bracket

Procedures for removing and installing the bracket housing the rear input/output ports.

System Board

Comprehensive steps for removing and installing the main system board.

Speakers

Instructions for removing and installing the integrated speaker modules.

Power-Button Board

Steps for removing and installing the board that controls the power button.

Microphones

Procedures for removing and installing the built-in microphone modules.

Side I/O-Board

Instructions for removing and installing the side input/output board.

Audio Board

Steps for removing and installing the computer's audio interface board.

Antennas

Procedures for removing and installing the wireless antenna modules.

Display Panel

Detailed instructions for removing and installing the main display screen.

Middle Frame

Steps for removing and installing the internal structural middle frame.

Software

Operating System

Lists the operating systems supported by the computer.

Downloading the Drivers

Step-by-step guide to download and install system drivers from the Dell support website.

System Setup

BIOS Overview

Explanation of the BIOS and its role in managing computer hardware and data flow.

Entering BIOS Setup Program

Instructions on how to access the BIOS setup utility during system startup.

Navigation Keys

Description of keyboard keys used for navigating within the BIOS setup interface.

Boot Sequence

Information on configuring the order in which the system boots from various devices.

System Setup Options

Details on various configurable settings within the system setup menus.

System and Setup Password

Guidance on setting, changing, or deleting system and BIOS setup passwords.

Troubleshooting

Dell SupportAssist Pre-boot System Performance Check Diagnostics

Explanation of the embedded system diagnostics tool for hardware checks.

Display Built-in Self Test

Procedure for running the self-test for the computer's display panel.

Diagnostics

Information on diagnostic LED behavior, error codes, and suggested resolutions.

Recovering the Operating System

Guidance on using Dell SupportAssist OS Recovery for system recovery.

Flashing BIOS (USB Key)

Steps to update the system's BIOS using a USB flash drive.

WiFi Power Cycle

Procedure to resolve WiFi connectivity issues by power cycling network devices.

Flea Power Release

Instructions on how to perform a flea power release to discharge residual electricity.

Getting Help and Contacting Dell

Self-help Resources

Links and information for accessing Dell's online support and knowledge base.

Contacting Dell

Information on how to contact Dell for sales, technical support, or customer service.

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