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Rebecca StokesAug 28, 2025
Why does my Dell Desktop say 'CMOS checksum error'?
- CCarla ClarkAug 28, 2025
This message indicates that the RTC is reset, and the BIOS Setup default has been loaded.
Why does my Dell Desktop say 'CMOS checksum error'?
This message indicates that the RTC is reset, and the BIOS Setup default has been loaded.
What to do if my Dell D15S Desktop has no POST/No Boot/No Power?
If your Dell Desktop is experiencing a No POST, No Boot, or No Power situation, press and hold the power button for 25 seconds.
How to fix keyboard clock line failure on Dell Desktop?
If your Dell Desktop displays 'KEYBOARD CLOCK LINE FAILURE', and you're using an external keyboard, check the cable connection. Run the Keyboard Controller test in Dell Diagnostics.
Why is licensed content not accessible in MediaDirect on my Dell D15S Desktop?
Dell MediaDirect cannot verify the Digital Rights Management (DRM) restrictions on the file, so the file cannot be played.
What to do if my Dell Desktop CPU has failed?
Run the Intel CPU diagnostics tools. If the problem persists, replace the system board.
How to fix 'Memory Address Line Failure' on my Dell Desktop?
A memory module may be faulty or improperly seated. Reinstall the memory module or, if necessary, replace it.
What causes power rail failure on Dell D15S Desktop?
If your Dell Desktop experiences a power rail failure, it means that EC ran into power sequencing failure. If the problem persists, replace the system board.
What to do if my Dell D15S Desktop has Flash corruption detected by SBIOS?
Flash corruption was detected by SBIOS. If the problem persists, replace the system board.
What to do if hard-disk drive controller failure 0 on Dell Desktop?
If your Dell Desktop displays a 'Hard-Disk Drive Controller Failure 0' error, shut down the computer, remove the hard drive, and boot the computer from an optical drive. Then, shut down the computer, reinstall the hard drive, and restart the computer. If the problem persists, try another drive. You can also run the Hard Disk Drive tests in Dell Diagnostics.
Why does my Dell D15S Desktop say time-of-day clock lost power?
If your Dell Desktop displays 'TIME-OF-DAY CLOCK LOST POWER', connect your computer to an electrical outlet to charge the battery. If the problem persists, try to restore the data by entering the System Setup program, then immediately exit the program.
Essential safety and preparation steps before servicing internal components.
Procedure for safely powering down the computer before maintenance.
Steps for reconnecting peripherals and powering up after component replacement.
List of necessary tools for component removal and installation tasks.
Instructions for safely accessing the computer's interior by removing the chassis cover.
Step-by-step guide for safely uninstalling RAM modules from the system.
Detailed procedure for safely extracting the CPU from its socket.
Steps to disconnect and remove the main computer motherboard.
Explanation of power LED status indicators and blinking patterns for fault diagnosis.
Lists common diagnostic error messages and their corresponding solutions.
Details system-level error messages and provides troubleshooting guidance.
Configuration for determining the order of devices used for computer startup.
Overview of configurable settings and parameters within the BIOS utility.
Instructions for upgrading the computer's firmware (Basic Input/Output System).
Guidance on setting and managing system and BIOS passwords for enhanced security.
Technical details of the CPU, including generation and cache size.
Description of all external ports available on the computer for connectivity.
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