what is the name of this yellow component in the motherboard?
The fine wire switching power supply transformer with yellow Mylar insulation tape may be squeezing due to excessive load swings due a component wear out downstream.  E-Caps are biggest items to wear out first and the large orange e-cap is starting to show signs of internal gas pressure inside.  Replace it with a same C and V or higher but low ESR good quality (Japanese ) brand cap avail at Mouser, RS or Digi-Key