How to fix LCD failure (EC detection of power rail failure) on Dell OptiPlex 5400 All-in-One?
If you are experiencing an LCD failure due to EC detection of power rail failure on your Dell Desktop, replace the system board.
How to fix generic catch-all for ungraceful EC code flow errors on Dell Desktop?
To address generic catch-all errors for ungraceful EC code flow on your Dell Desktop, disconnect all power sources (AC, battery, coin cell) and drain flea power by pressing and holding down the power button for 3~5 seconds.
How to fix Power-rail failure on Dell OptiPlex 5400 All-in-One?
If your Dell Desktop experiences a power-rail failure, and the EC ran into a power sequencing failure, replace the system board.
What to do if my Dell OptiPlex 5400 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 Desktop?
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 5400 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 5400 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 OptiPlex 5400 All-in-One?
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 invalid memory installed on Dell Desktop?
To resolve the issue of invalid memory installed in your Dell Desktop, reset the memory module. If the problem persists, replace the memory module.
How to fix CMOS battery failure on Dell OptiPlex 5400 All-in-One?
If your Dell Desktop experiences a CMOS battery failure, reset the CMOS battery connection. If the problem continues, replace the RTS battery.
General| RAM | Up to 64GB DDR4 |
|---|---|
| Processor | Up to 12th Gen Intel® Core™ i7 |
| Storage | Up to 2TB SSD |
| Display | 23.8-inch FHD (1920x1080) IPS |
| Graphics | Intel UHD Graphics |
| Operating System | Windows 11 Pro |
| Ports | HDMI, RJ-45 |
| Wireless | Bluetooth |
| Audio | Integrated |
| Camera | Pop-up webcam |
| Dimensions | 540.00 mm |
To Next Page