Verified answer

apparently it is the hard drive .

some times it will whine then others it will be quite but it is normall

Fan could make some noise. examine container is sitting on a nicely balanced stable flat floor. sparkling the vent outlet close to the fan carefully and blockage often could make sound louder than this is. it could make the noise as the two complicated force and fan is working on an identical time whether it might nit be too louder than spone voice at this methodology or music. If uncertain touch the organization and function checked. Technically any PVR/DVR with complicated disc force can generate noise and in many cases very minimum. in case you're enjoying back some thing and recording yet another programme on an identical time then noise point is probable to be larger as complicated force spins at a maximum of the two 5400rpm or some at 7200rpm now upload that vibration with noise of fan. wish this explains. Ta

My HD sky + box also has a bloody hum,

this is the third exchange i have had,guy

said most do it,as they HD Thompson's

seem to have this fault with the hard drive

making this noise,i Waite for another

manufacturer making them

Sky plus ordinary one,never had any

trouble.

SKY+ is always recording (so that you can rewind live tv). you may think about putting the box in a cabinet.

My sky+ box is dead silent at all times.

Maybe you should have it checked out, is it old?