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Thomas HallSep 12, 2025
What to do if my Dell OptiPlex 3090 Micro Desktop has a Power rail failure?
- BblakecarrieSep 12, 2025
The EC ran into a power sequencing failure. If the problem persists, replace the system board.
What to do if my Dell OptiPlex 3090 Micro Desktop has a Power rail failure?
The EC ran into a power sequencing failure. If the problem persists, replace the system board.
What to do if my Dell Desktop has a SBIOS Flash corruption?
Flash corruption was detected by SBIOS. If the problem persists, replace the system board.
General| Audio | Realtek ALC3246 with Waves MaxxAudio Pro |
|---|---|
| Form Factor | Micro |
| Processor Options | 10th Gen Intel Core i3, i5, i7 |
| Chipset | Intel H470 Chipset |
| Memory | Up to 64GB DDR4 2933MHz |
| Storage Options | M.2 PCIe NVMe SSD, 2.5-inch HDD/SSD |
| Graphics | Intel UHD Graphics 630 |
| Ports (Front) | 1x USB 3.2 Gen 1 Type-C, 2x USB 3.2 Gen 1 Type-A, 1x Universal Audio Jack |
| Ports (Rear) | 2 x USB 2.0, 2 x USB 3.2 Gen 1 Type-A, 1 x RJ-45 |
| Operating System | Windows 10 Pro |
| Dimensions | 36.0mm x 178.0mm x 182.0mm |
| Networking | 10/100/1000 Mbps |
| Wireless | Intel® Wi-Fi 6 AX201, 2x2, 802.11ax with Bluetooth 5.1 |
| Power Supply | 65 W adapter |
Guidelines for protecting your computer and ensuring personal safety during service procedures.
Measures to prevent electrostatic discharge damage to sensitive electronic components.
Steps to take after completing internal computer service to ensure proper reassembly.
Lists necessary tools and screw types for component removal and installation.
Identifies and labels the main internal components of the system.
Procedure for removing and installing the computer's side cover.
Steps for removing and installing the front bezel of the computer.
Instructions for removing and installing the hard-drive assembly.
Procedure for removing and installing the hard-drive bracket.
Steps for installing the 2.5-inch hard-drive assembly.
Guides for removing and installing the M.2 2230 PCIe solid-state drive.
Guides for removing and installing the M.2 2280 PCIe solid-state drive.
Detailed steps for removing and installing the system's fan assembly.
Instructions for removing and installing the Wireless Local Area Network (WLAN) card.
Steps for removing and installing the heat sink assembly.
Guides for removing and installing the coin-cell battery.
Instructions for removing and installing memory modules (RAM).
Steps for removing and installing the system speaker.
Instructions for removing and installing optional I/O modules like Type-C, HDMI, VGA, DP, Serial.
Detailed steps for removing and installing the computer's processor.
Comprehensive instructions for removing and installing the system board.
Explains BIOS interaction, navigation keys, and entering the one-time boot menu.
Details general options, system information, boot sequence, and date/time settings.
Covers admin/system passwords, secure boot, TPM, and chassis intrusion settings.
Options for optimizing CPU performance, power states, and system startup behavior.
Configuration for virtualization, wireless devices, system maintenance, and logs.
Instructions for updating the system BIOS using various methods.
Procedures for setting, changing, deleting, and clearing BIOS passwords.
Guide to running hardware diagnostics and interpreting diagnostic LED codes.
Procedures for OS recovery, backup options, and WiFi troubleshooting.
Information and steps to contact Dell support for sales, technical, or customer service.
