beep sound dell inspiron 15-3521

@gd27 continuous beep is usually a bad motherboard. So start off by getting rid of the static power by turning of the computer, remove the battery, ac adapter and the power cable. Press and hold down the power button for at least thirty. After that, reconnect the AC adapter and the power cable, then try to start it. If that did not work you can try and run the hardware diagnostics. For that shut down the laptop, press the FN key and then press the power button, Let us know what you get with this. It may also be beneficial if you connect an external monitor just to ensure there is nothing on the display. Let us know what you get after all of this.

Check the CMOS sensor and change it if it is the problem. Mine had a similar problem , it will beep every time it boots found out CMOS sensor gone.

"Hi @Bhekumuzi Sindane

A 7 beep error code is a CPU failure. (Click on Table of Contents > 2. Dell Notebook Systems > Latitude to find the list of beep error codes and their meaning, pertaining to Dell Latitude laptops).

Since the CPU in your laptop is hard mounted on the motherboard this means that you will need a new motherboard"