What to do if error reading pcmcia card on Dell OptiPlex 7090 Tower Desktop?
If your Dell Desktop displays 'ERROR READING PCMCIA CARD', the computer cannot identify the ExpressCard. Reinsert the card or try another card.
How to fix memory/RAM failure on Dell OptiPlex 7090 Tower Desktop?
If your Dell Desktop experiences a memory or RAM failure, reset the memory module. If the problem persists, replace the memory module.
How to resolve invalid memory installed on Dell Desktop?
If your Dell Desktop says invalid memory is installed, reset the memory module. If the problem continues, replace the memory module.
What to do if Dell OptiPlex 7090 Tower shows no boot device available?
If your Dell Desktop displays 'No Boot Device Available', the computer cannot find the hard drive. If the hard drive is your boot device, ensure that the drive is installed, properly seated, and partitioned as a boot device.
Why does Dell OptiPlex 7090 Tower Desktop show extended memory size has changed?
If your Dell Desktop displays 'EXTENDED MEMORY SIZE HAS CHANGED', the amount of memory recorded in non-volatile memory (NVRAM) does not match the memory module installed in the computer. Restart the computer. If the error appears again, No answer.
Why licensed content is not accessible in MediaDirect on Dell OptiPlex 7090 Tower Desktop?
If your Dell Desktop displays 'LICENSED CONTENT IS NOT ACCESSIBLE IN MEDIADIRECT', Dell MediaDirect cannot verify the Digital Rights Management (DRM) restrictions on the file, so the file cannot be played.
Why is available memory decreasing on Dell OptiPlex 7090 Tower?
If your Dell Desktop shows decreasing available memory, one or more memory modules may be faulty or improperly seated. Reinstall the memory modules or, if necessary, replace them.
What to do if GATE A20 FAILURE on Dell Desktop?
If your Dell Desktop shows GATE A20 FAILURE, a memory module may be loose. Reinstall the memory module or, if necessary, replace it.
How to fix memory address line failure on Dell OptiPlex 7090 Tower?
If your Dell Desktop shows 'MEMORY ADDRESS LINE FAILURE AT ADDRESS, READ VALUE EXPECTING VALUE', a memory module may be faulty or improperly seated. Reinstall the memory module or, if necessary, replace it.
How to fix BIOS recovery image not found on Dell OptiPlex 7090 Tower Desktop?
If the BIOS recovery image is not found on your Dell Desktop, flash the latest BIOS version. If the problem persists, replace the system board.
General| Processor Options | 10th Gen Intel Core i3, i5, i7, i9 |
|---|---|
| Chipset | Intel Q470 Chipset |
| Memory | Up to 128GB DDR4 2933MHz |
| Storage Options | 2.5-inch HDD/SSD, M.2 PCIe NVMe SSD |
| Graphics Options | Integrated Intel UHD Graphics |
| Operating System | Windows 10 Home/Pro, Ubuntu Linux |
| Ports | Front: USB 3.2 Gen 2 Type-C, USB 3.2 Gen 1; Rear: USB 2.0 |
| Expansion Slots | 1 x PCIe x16, 1 x PCIe x4, 1 x PCIe x1 |
| Power Supply | 260W, 300W or 500W |
| Dimensions | 293.0 mm |
Covers safety guidelines, ESD protection, and handling sensitive components.
Steps to follow after completing internal computer work.
Lists tools, screw types, and identifies major system components visually.
Instructions for removing and installing the side cover and front bezel.
Procedures for 2.5-inch and 3.5-inch hard drives, and M.2 SSDs.
Steps for replacing memory modules and processor fan/heat sink assemblies.
Instructions for replacing the processor, graphics card, and powered GPU.
Procedures for coin-cell battery, WLAN card, and slim optical drive.
Steps for replacing chassis fan, VR heat sink, speaker, and power button.
Procedures for removing and installing the power supply unit and intrusion switch.
Instructions for replacing optional I/O modules and the system board.
Information on obtaining and installing system drivers.
How to access and navigate boot menus and system setup.
Details system configuration settings available in BIOS.
Procedures for assigning and managing system and setup passwords.
Running pre-boot diagnostics and interpreting LED error codes.
Explanations for diagnostic and system error messages.
Steps to perform a WiFi power cycle to resolve connectivity issues.
List of resources and methods for obtaining Dell support.
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