If the screen on your TV is flickering, the first thing to do is determine what the cause is. We can do this with some simple testing.
Click Run to launch the software. Dell System Detect will display your service tag and computer model number. 5. Visit the Dell Product Support for Home Users page (link in Resources). Enter your Service Tag number in the applicable box and click Submit.. A new page displays more information about your desktop model.
How to find your Service Tag. Your Dell Service Tag is located on the bottom of your laptop. It will be a 5-7 character long alphanumeric number. If you cannot find your service tag, you can download our automatic detection tool and this will get your Dell Service Tag directly from your laptops motherboard. The tool is free for download.