It has done this since it was new and HP support has not been helpful. Here is a video of what it does when it freezes during playing a video. It makes a very fast repetitive buzzing sound (see youtube video).
http://www.youtube.com/watch?v=hZXwyOVo3E8&feature=youtu.be
http://www.youtube.com/watch?v=hZXwyOVo3E8&feature=youtu.be