Hi guys, this is my first post in macforums... would appreciate any help! i have seen from other threads on this site other people complaining that there iMac's make a small but noticeable humming sound from the top left of the computer. mine unfortunately has the same issue.
the loudness of the sound changes as vary the brightness of the screen.. however, my guilt feeling tells me the sound is actually linked to some kind of power transistor.. this is due to when i shut the mac off i still hear a small ticking sound when the lead is plugged in (when the lead isn't plugged in there is no ticking sound).. secondly, because i have taken the iMac round to a friends house and the humming sound is different..the only thing that has changed is the power supply.
therefore do you think a 'filtering mains' cable may help??? an electrical technician advised me that it might... here is the example he showed me. Power Cables And Conditioners Qed QONDUIT MAINS POWER CABLE | hifix.co.uk
hope this makes sense, please any feedback to get rid of this hum would be great!
ollie
the loudness of the sound changes as vary the brightness of the screen.. however, my guilt feeling tells me the sound is actually linked to some kind of power transistor.. this is due to when i shut the mac off i still hear a small ticking sound when the lead is plugged in (when the lead isn't plugged in there is no ticking sound).. secondly, because i have taken the iMac round to a friends house and the humming sound is different..the only thing that has changed is the power supply.
therefore do you think a 'filtering mains' cable may help??? an electrical technician advised me that it might... here is the example he showed me. Power Cables And Conditioners Qed QONDUIT MAINS POWER CABLE | hifix.co.uk
hope this makes sense, please any feedback to get rid of this hum would be great!
ollie
