Cryorig C7 CU Mini-Top-Flow-CPU-Kühler - Kupfer

This is cooling an AMD 5950X in an SFF. That's insane and not something I at all recommend, but until I get the time to do the water block, this is *the* CPU cooler that fits and doesn't lead to overheating and shut down during POST.Its noise level is decent for an air cooler. That's not the same thing as quiet, though. It's an air cooler. Moving air is how it works. Moving air is also how noise works.It's pure copper, so it's *very* heavy compared to aluminum coolers. But that's a feature, not a bug, because copper moves heat much more efficiently than aluminum.I bought this in September. It works well enough that, "I'll get around to that water block next week" has turned into, "I'll get around to that water block over the Christmas holidays."Even though I don't plan to use this long term, it will be a handy thing to have around for future projects after I replace it.The major downside is the price. This cooler should be around $50. But it is in short supply and, like so many other things, is currently being scalped for double or more.

This is the best heatsink of its size hands down. If you need a cpu cooler that's sub 48mm you won't find a better performing one.There are two issues with this cooler though. First is the fan. This cooler uses the same fan, but in a different aesthetic, as the aluminum c7. It is known for being annoyingly loud and that does not change here. The fan is also custom mounted onto the heatsink, so if you want to replace it you'll need to buy an adapter or fabricate yourself some other solution. Second is the backplate. The backplate is an all in one solution, which means it's huge. It will interfere with rear mounted m.2 drives on mini itx motherboards and may interfere with other components on the rear of the motherboard PCB. They include an alternative solution involving washers instead of a backplate for this. It technically works, but it doesn't look healthy one bit. The pressure that a cpu cooler puts on a socket is extreme. This is why backplates exist, to spread that extra force across it. With the washer solution the motherboard warps and bends around the socket in a very unhealthy looking way. I ended up taking my dremel to it and grinding off some of the excess of the backplate that I won't ever use. There is no reason for this to be a problem if they just included multiple designed backplates per socket configuration. At this premium price point, this should be included, not some weird washer solution.There are places online you can find a 3d printed fan adapter for purchase to mount a standard 92mm fan. I bought one ($10) and replaced the fan with Noctua's 92mm slim fan. The height is the same and the noise is substantially lower. An expensive solution, but it does get you the best under 48mm air cpu cooler currently.This is no longer available it seems. Rumors are that they're working on a graphite coated version to replace this, which allegedly is even better. Unfortunately the fan and backplate seem unchanged.

I swapped out the C7 Alu version with the C7 Cu in my Dan Case A4 sfx v2 like the first reviewer (who left a 1-star review and was not satisfied). I was aware that Cryorig reported up to 15% better performance in the Cu version compared to the Alu version.Due to the side panel being so close to the C7's fan assembly, there is a known turbulence issue, which I resolved by replacing the stock fan with a Noctua slim 92mm fan. It was easy to attach a 3d printed fan adapter to the heatsink, I also used paper clips to attach the C7 in the past as a temporary solution without any issues.I achieved a 1-2- degree Celsius improvement at idle, and a 6-degree Celsius at full load on all cores on a stock 7700k. Both tests were run in the same environment/room temperature.Yes, this cooler is more expensive due to it being all copper. Is the performance worth the additional investment over the Alu version? To me, the performance gained is worth the additional investment and I am very satisfied with my purchase. YMMV depending on your budget.My advice for potential buyers is to read up on the benchmarks and make an informed decision. I've read several reviews and I'm sure more hardware reviewers will release their benchmarks as the product becomes more available.

but it wasn't super trivial to setup. The QR code provided was supposed to link to instructions, but that link is clearly broken. This gave me the feeling that the product might be discontinued, but sill sold. After YouTubing around, I was able to find a decent installation video, and I am glad I did because it was NOT trivial. I'm an experienced system builder, so for me to have to go this route is really saying something, I think. It also performs "fine" for my needs, cooling a 5600X in a Silverstone CS381 case. Now, this case is not known for good thermals, so I cannot say which is the worse culprit, but I am still seeing temps in the low 80's for shorter, bursty loads. Idle temps are fine though, high 30's -low 40's and it's certainly an improvement over the stock cooler. I'd bring it to 4 stars if not for the bad setup experience,

Cryorig tweeted and hinted this would be an incredible improvement over the original C7, at one point mentioning a 20 degree improvement on enthusiast forums. Maybe finally there would be a non-ghetto cpu cooling option for my Dan Case A4 that didn't involve zip ties and the lp53? Sadly no. This thing still runs hot, 4 degrees cooler vs my old C7, and it still runs obnoxiously loud. Swapping on a noctua fan with 3d printed clips barely helps with noise issues, even when installed in a case that doesn't generate obvious turbulence (meshify c). Performance is disappointing after this was hyped up months in advance of this new release.