I bought a new AllinOne device for my home office and decided on a WorkCentre 6515. From what I can say so far, the device is good, but I am having one very annoying thing: there is some wuite loud coil whining when the device is in sleep mode. It is a really annoying and piercing sound. Whenever the device in up and running it stops.
Is there anything I can do about it? Any help is appreciated.