What do my computer speakers making a buzzing sound?

Episode 1029 (44:07)

Michael from Modesto, CA

Michael is getting a buzzing noise from his speakers after a computer crash. Leo says that's very common and it's most commonly due to a power supply failure. Could it be the hard drive? Leo says not likely. Maybe a motherboard issue or a RAM issue. Leo says it could also be an overheating issue and a good cleaning could help.