Chosen Solution
My M1 iMac has just one fan and I’d like to add another fan to it. It goes on a lot and the right side of the iMac overheats a lot, despite the marketing where it doesn’t at all. I don’t really use intel apps. According to macs fan control (universal; intel and m1), my CPU (both performance and efficiency), and SSD (at 4% of lifespan; bought this in July 2021) take up much of the heat. Is there a way to add an extra fan to this iMac in a DIY fashion? If so, how?
Apple produced two versions of this system the low end model which only has one fan and the higher end model with two. The logic boards are very different so you can’t add the missing fan. At this point it sounds like your use pattern requires more cooling if you got the single fan model. The only answer I can offer you is to see if you can swap it out with the higher end model if you still can (talk with the seller) otherwise you’ll need to sell yours and then get another one this time the higher end model. Update (03/15/2022) @ebp049x - Maybe a picture will help you, here’s the single fan heat sink
There is no benefit blowing air into your system, there is no heat transfer possibility on the other side with the single fan version of the system.
