Dell OptiPlex 7400 All-in-One Setup Guide and Specifications
Summary
The OptiPlex 7400 All-in-One Setup and Specifications guide documents Dell's business all-in-one desktop computer with integrated display. It covers initial setup, physical views and ports, retractable camera features, technical specifications, environmental standards, and regulatory compliance information, targeting business users and IT departments deploying space-efficient desktop computing solutions.
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Opti Plex 7400 All-in-One Setup and Specifications
Regulatory Model: W26C Regulatory Type: W26C005/W26C006 March 2022 Rev. A00
Page Summary Contents For Dell OptiPlex 7400 All-in-One Setup Guide and Specifications
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Opti Plex 7400 All-in-One Setup and Specifications Regulatory Model: W26C Regulatory Type: W26C005/W26C006 March 2022 Rev. A00
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Notes, cautions, and warnings NOTE: A NOTE indicates important information that helps you make better use of your product. CAUTION: A CAUTION indicates either potential damage to hardware or loss of d...
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Contents Chapter 1: Set up your computer................................................................................................... Chapter 2: Views of Opti Plex 7400 All-in-One..................
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Set up your computer 1. Set up the stand. Figure 1. Articulating stand Set up your computer
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Figure 2. Fixed stand Set up your computer
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Figure 3. Height Adjustable Stand NOTE: Follow the same procedure to install the Height Adjustable Stand with Optical Disk Drive. Set up your computer
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2. Connect the keyboard and mouse. Set up your computer
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3. Connect to your network using a cable, or connect to a wireless network. Set up your computer
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4. Connect the power cable. Set up your computer
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5. Press the power button. 6. Finish operating system setup. For Ubuntu: Follow the on-screen instructions to complete the setup. For more information about installing and configuring Ubuntu, see the ...
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Table 1. Locate Dell apps (continued) Resources Description Support Assist Support Assist proactively and predictively identifies hardware and software issues on your computer and automates the engage...
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Views of Opti Plex 7400 All-in-One 1. Hard-drive status indicator Views of Opti Plex 7400 All-in-One
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1. SD 4.0 card slot 2. USB 3.2 Gen 2x2 Type-C port 3. Universal audio port 4. USB 3.2 Gen 1 port with Power Share Views of Opti Plex 7400 All-in-One
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1. Full HD webcam 2. Camera-status light 3. FHD display 4. Speakers 5. Power button and power-status/diagnostic indicator 6. Dual-array microphones Views of Opti Plex 7400 All-in-One
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Retractable camera NOTE: Depending on the configuration ordered, your computer will have only RGB camera or both RGB camera and Infrared camera. 1. Full HD camera 2. Infrared camera 3. Infrared emitte...
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1. Display Built-in Self Test button 2. Service tag label The VESA mount compatibility for Opti Plex 7400 All-in-One is 100x100 mm. Views of Opti Plex 7400 All-in-One
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1. Back cover 2. Stand cover 3. Kensington security-cable slot 4. Bottom cover 5. Stand Views of Opti Plex 7400 All-in-One
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Inside view of your computer This section provides information about the components available in your computer. View of discrete configuration 1. System board 2. Camera assembly 3. Heat sink 4. M.2 22...
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View of UMA configuration 1. Power-supply unit connector 2. Camera assembly 3. Heat sink 4. M.2 2230/2280 solid-state drive PCIe connector 5. Processor fan 6. Memory module 7. Hard drive slot 8. M.2 2...
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Specifications of Opti Plex 7400 All-in-One Dimensions and weight The following table lists the height, width, depth, and weight of your Opti Plex 7400 All-in-One. Table 2. Dimensions and weight Descr...
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Table 3. Processor (continued) Descriptio Option one Option two Option Option four Option five Option six Option seven three Processor core count Processor thread count Processor 2.40 GHz to 5.10 3.30...
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For future versions of Windows 11, Dell continues to test the commercial platform with coming Windows 11 releases during device production and for five years post-production, including both fall and s...
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External ports The following table lists the external ports of your Opti Plex 7400 All-in-One. Table 7. External ports Description Values Network port One RJ45 Ethernet port (rear) USB ports One USB 3...
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Ethernet The following table lists the wired Ethernet Local Area Network (LAN) specifications of your Opti Plex 7400 All-in-One. Table 9. Ethernet specifications Description Values Model number Intel ...
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Table 11. Audio specifications (continued) Description Values External volume controls No hardware volume buttons Speaker output: Average speaker output Peak speaker output Subwoofer output Not applic...
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operation will not complete until all the drives in the RAID volume have completed the request to commit the data. This kind of IO operation completely negates any advantage of a higher performing dri...
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Table 15. Full HD RGB Infrared Webcam (continued) Description Values Camera 77.50 degrees Infrared camera 82.90 degrees Table 16. Full HD RGB Webcam Description Values Number of cameras One Camera typ...
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Table 18. Power supply connector (continued) One 2 pin connector for LED 220 W (80 PLUS Platinum) One 16 pin connector for system board One 2 pin connector for LED Display The following table lists th...
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Table 19. Display specifications (continued) Description Option one (non-touch display) Option two (touch-display) Multi-touch feature supported Not applicable 10-points multi-touch Display surface An...
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Multiple display support matrix The following table lists the multiple display support matrix for your Opti Plex 7400 All-in-One. Table 23. Multiple display support matrix Graphics Memo Ports Supporte...
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Table 25. Environmental (continued) Feature Values Energy-Efficient Power Supply Standard ENV0424 compliant Yes NOTE: Wood‐based fiber packaging contains a minimum of 35% recycled content by total wei...
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Getting help and contacting Dell Self-help resources You can get information and help on Dell products and services using these self-help resources: Table 28. Self-help resources Self-help resources R...
Manual Details
| Brand | Dell |
|---|---|
| Pages | 32 |
| File Size | 5.85 MB |
| Published | June 26, 2026 |
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Frequently Asked Questions
How do I find support resources for my specific Dell computer?
Visit www.dell.com/support, enter your Service Tag or Express Service Code to view relevant documents and tips.
Where can I access online help for various operating systems?
Linux help is found at www.dell.com/support/linux, while Windows resources are on www.dell.com/support/windows.
What should I use when searching the Dell Knowledge Base?
You can enter a keyword, topic, or the model number into the search field on the Support page.
What documentation defines component limitations for the OptiPlex 7400?
Chapter 3 details specifications like dimensions, weight, and performance limits. Operating outside these ranges may impact components.