To fix a laptop making a buzzing sound, first, diagnose noise issues by inspecting fans, hard drive, power supply, graphics card, overheating components, noise paths, worn-out parts, power adapters, RAM, and CMOS batteries. Test power supply stability. If your laptop is producing a screeching noise or emitting a whine, the steps you need to follow are: Inspect fans, Examine the hard drive, Test power supply stability
Monitor overheating components, Adjust power options, Undervolt GPU and CPU, Speed up your laptop.