LAPTOP IS MAKING SOUND LIKE CRACKKLING

What is the computer model and the OS installed? Try running the diagnostics to see if that will provide an information as to what is making the noise.

To receive assistance from Dell chat support, they need to verify the warranty status and ownership. Then you must troubleshoot with them.  Click the "Get Help Now" icon on the right to start a live chat session. If already out of warranty, click here for the Dell out of warranty offering.

That sounds like a battery expanding even though it is only 5 months old. Open the bottom and see if the battery is starting to swell. Or have Dell do it because it is under warranty.