There are no overheatings, it is solved by buying the right radiator. I put it in iMac 27 2022 through an adapter, with a maximum load of 55. It's not 70 or even 100. . without load 36 in idle time and 45-48 when surfing the Internet 4k video, etc. The radiator was put on it ? cpa=1&sku=101546184752&offerid=qUy420KWWmCeVnY-bCe5IA