A Reddit user recently wanted to share his experiment to cool an Intel Core i9 with what would be silent cooling. He's used a massive four-strand copper weight block that doesn't crush the CPU, and he claims it keeps temperatures at bay under load.
Keep in mind that the submission was made to the r/hardwaregore subreddit, a subreddit dedicated to posting experiments and impractical situations for building PCs, possibly as an experiment and for laughs rather than something serious. In addition, he does not ensure that it is a long-term solution, but that with his experiments, the CPU works and does not exceed eighty degrees.
A huge passive cooling from four kilos of copper
A Redditor named “That-Desktop-User” has used a huge block of copper as a passive heatsink to cool an Intel i9 processor. It kept the CPU at 35 degrees at idle and about 80 degrees under load.
This piece of copper was recycled from an old medical machine, it contains pre-tapped holes and a brass filter inside. That-Desktop-User has speculated on Reddit about the possibility of using these holes to add liquid cooling to this copper block. This, in theory, would allow you to improve the cooling potential of this hunk of metal.
He also claims that it is surprisingly effective. This makeshift cooler doesn't have a lot of surface area, but it's capable of keeping an i9 processor at about 80 degrees under load. Quite possibly, with modifications, even better temperatures could probably be achieved. The enormous thermal mass of this copper block is what keeps the i9 processor cool under load. It would have to be tested how this solution would work when presented with large and sustained loads.
That-Desktop-User tested their copper heatsink for 15 minutes under load, and it is likely that longer loads would put the large thermal mass of this thick copper heatsink to the test. An i9 processor is likely to add heat to this copper heatsink faster than it can dissipate it to the surrounding air, resulting in increased copper block temperatures and increased CPU temperatures, resulting in when it would eventually reach its critical temperature. This would not be different from what already happens with passive refrigeration, but on a large scale.
Source: Overclok3d
