JSI Tip 2589. My computer randomly plays music, while booted to either Windows NT or Windows 2000?

Your computer randomly plays music, like Fur Elise or It's a Small, Small World, from the PC speaker?

Some BIOSes have been programmed to use this method to notify you that your CPU fan has failed (is failing) or that your power supply voltages are out of tolerance.

This is NOT an operating system issue and it is NOT a virus.