Loud Fan (Late 2015 Retina iMac)

gsingham

macrumors 6502
Original poster
Oct 20, 2013
259
42
Hi I've had my iMac for the last week but its only really been quiet enough for me to use the iMac now and realise the fans are louder than my previous 2014 iMac retina range. I would say close to 40% louder at the same usage.

Anyone else with this problem.

Under CPU usage, its 99% idle.
 

Eric2

macrumors member
Jan 18, 2008
54
1
London
Hi I've had my iMac for the last week but its only really been quiet enough for me to use the iMac now and realise the fans are louder than my previous 2014 iMac retina range. I would say close to 40% louder at the same usage.

Anyone else with this problem.

Under CPU usage, its 99% idle.
Whats your spec of the new iMac compared to your old one?
I’m about to order a new one but surprised its louder.
 

gsingham

macrumors 6502
Original poster
Oct 20, 2013
259
42
Top specs, similar to that of my old one. I'm also now notice a weird "fizz" coming from it. Like sparkling water with the lid a little loose and you heard that slight hiss. I would request a replacement but the white balance of this screen is amazing and theres little to no light leakage. I don't know if this is due to a cable getting brushed by the fan. But its irritating. Feel like giving this machine one hard slap lol and hopefully that gets it out of the way.
 

gsingham

macrumors 6502
Original poster
Oct 20, 2013
259
42
Now another issue. When i put the computer into sleep, theres a weird buzzing noise (think small fly) coming from the right speakers. When I wake it up the noise goes away completely.