According to Fanless Tech, netizen “That Desktop User” used an 8-pound (about 7 pounds) copper pillar as a passive cooler for the Intel Core i9, and it worked pretty well.
Image source That Desktop User
According to the user, this is a solid copper cylinder that was used to cool the i9 (no specific model mentioned) at 35 °C at idle and 80 °C in a runtime test.
The user said that the copper solid cylinder is an accessory on a multi-thousand dollar medical device with threaded holes on top of the copper column, which seems to have the potential to be converted into water cooling.
The current air-cooled radiators mostly use a copper base and aluminum cooling fins structure, high-end models will also use pure copper radiator fins. The role of fins is to increase the cooling area. The copper column in the above picture is very large, but its cooling area is not large, and the cooling effect is naturally not as good as the traditional radiator.
