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Lynn ClarkSep 9, 2025
What to do if my Dell OptiPlex 7490 All-In-One Desktop has a PCI failure?
- DDr. George BairdSep 9, 2025
If your Dell Desktop experiences a PCI, video card/chip failure, replace the system board.
What to do if my Dell OptiPlex 7490 All-In-One Desktop has a PCI failure?
If your Dell Desktop experiences a PCI, video card/chip failure, replace the system board.
What to do if my Dell OptiPlex 7490 All-In-One Desktop has a processor failure?
To address a processor failure on your Dell Desktop, run the Intel CPU diagnostics tools. If the issue continues, consider replacing the system board.
How to fix BIOS failure on Dell OptiPlex 7490 All-In-One?
If your Dell Desktop experiences a BIOS or ROM failure, flash the latest BIOS version. If the problem continues, the system board may need to be replaced.
What to do if my Dell OptiPlex 7490 All-In-One has a display failure?
To resolve a display failure on your Dell Desktop, flash the latest BIOS version. If the problem persists, consider replacing the LCD module.
How to fix RAM failure on Dell OptiPlex 7490 All-In-One Desktop?
To fix a memory or RAM failure in your Dell Desktop, try resetting the memory module. If the problem persists, replace the memory module.
How to fix system-board error on Dell Desktop?
To address a system-board or chipset error on your Dell Desktop, flash the latest BIOS version. If the issue continues, consider replacing the system board.
How to fix TPM Detection Failure on Dell OptiPlex 7490 All-In-One Desktop?
To resolve a MBIST TPM Detection Failure on your Dell Desktop, replace the system board.
How to fix LCD power rail failure on Dell Desktop?
If your Dell Desktop experiences a LCD power rail failure, replace the system board.
How to fix Power-rail failure on Dell OptiPlex 7490 All-In-One Desktop?
If your Dell Desktop experiences a power-rail failure, and the EC ran into a power sequencing failure, replace the system board.
How to fix Management Engine (ME) error on Dell OptiPlex 7490 All-In-One Desktop?
If you encounter a Management Engine (ME) error on your Dell Desktop, and a timeout error is displayed while waiting on ME to reply to HECI message, replace the system board.
General| Display Size | 23.8 inches |
|---|---|
| Display | FHD (1920 x 1080) Anti-glare |
| RAM | Up to 64GB DDR4 |
| Graphics | Integrated Intel UHD Graphics |
| Operating System | Windows 10 Pro |
| Ports | USB 3.2 Gen 1 Type-A, USB-C 3.2 Gen 2, HDMI, Ethernet, Audio out |
| Wireless | Wi-Fi 6 (802.11ax) and Bluetooth 5.1 |
| Audio | Stereo speakers |
