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Dell OptiPlex 7090 Small Form Factor - User Manual

Dell OptiPlex 7090 Small Form Factor
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OptiPlex 7090 Small Form Factor
Service Manual
Regulatory Model: D15S
Regulatory Type: D15S004
August 2021
Rev. A01

Table of Contents

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Dell OptiPlex 7090 Small Form Factor Specifications

General IconGeneral
BrandDell
ModelOptiPlex 7090 Small Form Factor
CategoryDesktop
LanguageEnglish

Summary

Working inside your computer

Safety instructions

Guidelines to protect your computer from damage and ensure personal safety.

Before working inside your computer

Steps to prepare before performing disassembly or repair procedures.

Removing and installing components

Recommended tools

Lists essential tools required for component removal and installation.

Screw List

Details screws used for different components, including type and quantity.

Major components of your system

Visual identification of key internal components of the computer system.

Side cover

Procedures for removing and installing the computer's side panel.

Intrusion switch

Steps to remove and install the chassis intrusion detection switch.

Front bezel

Instructions for removing and installing the front chassis cover.

Hard drive

Procedures for removing and installing 2.5/3.5-inch hard drives and their caddy.

Solid-state drive

Instructions for removing and installing M.2 2230 and M.2 2280 SSDs.

Optical drive

Procedures for removing and installing the optical drive and its bracket.

SD-card reader

Steps for removing and installing the SD card reader module.

WLAN card

Instructions for removing and installing the wireless LAN card.

Fan and heat-sink assembly

Procedures for removing and installing the CPU fan and heat sink.

Graphics card

Steps for removing and installing the graphics processing unit.

Coin-cell battery

Instructions for removing and installing the CMOS coin-cell battery.

Memory modules

Procedures for removing and installing RAM modules.

Processor

Steps for removing and installing the CPU.

Power button

Instructions for removing and installing the system's power button assembly.

Power-supply unit

Procedures for removing and installing the computer's power supply.

System board

Procedures for removing and installing the main system board.

Software

Drivers and downloads

Information on obtaining and installing necessary system drivers and software.

System setup

Boot menu

How to access and use the one-time boot menu options.

Navigation keys

Explains keyboard keys used for navigating BIOS setup.

Boot Sequence

How to change the order of devices for system startup.

System setup options

Details various configurable settings within the BIOS/System Setup.

Troubleshooting

SupportAssist diagnostics

Overview of the built-in hardware diagnostic tool and its features.

Diagnostic LED behavior

Explains blinking patterns of diagnostic LEDs and their meanings.

Recovering the operating system

Information on using Dell SupportAssist OS Recovery for system restoration.

Flashing the BIOS

Instructions for updating the system's BIOS firmware.

Backup media and recovery options

Recommendations for creating recovery media for Windows.

WiFi power cycle

Procedure for troubleshooting Wi-Fi connectivity issues.

Drain residual flea power (perform hard reset)

Steps to drain residual power for troubleshooting or component replacement.

Getting help and contacting Dell

Self-help resources

List of Dell resources for product information and support.

Contacting Dell

Information on how to reach Dell for sales, support, and service issues.

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