Here's a hardware curiosity ...
My motherboard is a Gigabyte GA-965P-DS3/S3, year and a half or two old. PS is a Corsair 550W, Core 2 Duo, 4GB, 1 Intel 80GB SSD, a WD Black 1TB drive, fanless Radeon HD 4670, 2 19" LCD monitors.
Runs great. Makes odd buzzing sounds.
Whenever the machine is busy - task manager CPU indicator is >60%, or lots of I/O (music + streaming data for trading system), or Picassa chewing thru pictures looking for faces, or all of that stuff at the same time - there is a buzzing sound from the inside of the case.
When the load goes away, the buzzing stops.
Any theories? Ideas welcome.
Thanks,
rr