iMac 27 2010 low brightness buzzing noise
I have recently bought an iMac 2010 27 inch. Everything is okay with the machine but it makes a strange buzzing noise while the brightness is turned down. Even below 90% I can notice a quiet buzz.
Browsing through the Internet, I found out that the problem might be related to the PSU or the display inverter. Latter makes more sense because lower brightness means lower power consumption for the PSU, doesn’t it?
Should I open the iMac to examine where the noise comes from exactly? Where would I be able to buy spare parts?
Hoping for a reply,
Is this a good question?