After 4-5 minute of starting of laptop, continuous beep sound is coming

Hi

I am having inspiron 14r and I am facing some issue with it recently.

After starting my laptop, it works fine for 4-5 minute. After that continuous beep sound is coming.

It is very loud

Please help me.

Also, there is no problem with the screen or other software in the lappy. Only the continuous loud beep sound starts and after that laptop gets hanged.