Archived Blog Post: August 5, 2000

Microsoft Product Support Services: Q261186 - Computer Randomly Plays Classical Music - "During normal operation or in Safe mode, your computer may play 'Fur Elise' or 'It's a Small, Small World' seemingly at random. This is an indication sent to the PC speaker from the computer's BIOS that the CPU fan is failing or has failed, or that the power supply voltages have drifted out of tolerance."