Dynatron L3 Aio Enclosed 1u Server Liquid Cooler Intel/AMD Socket Brown Box

Used it for a few servers i colocated. cools my extremely warm AMD Ryzen 9 5950X at a cool 25C. For a 1U server with limited space, its by far the best you can get.

This little thing has just about the cooling power of a 120mm AIO with the high-pitch noise of a jet engine.Only use if the server rack is not near to people

I'm building a computer in an old Google server case. This cooler was perfect and fit my 5900x fine. Temps were a little high but when I swapped to a 5600x it was working fine. Needed to buy a fan controller but otherwise it's pretty quiet. I'd highly recommend buying the slightly larger one that has 5 fans.

This was the product I was looking for for my 1U server, but LGA2011 Narrow goes in sideways!!! so if your ventilation goes through the front to the back of the server, you might want to consider a custom loop as it really won't bend it sideways and have it in nicely in the case. Otherwise, it is amazing product, although I am sad that there are no competitors on market for the 1U liquid cooler, if you are looking for AIO for just one CPU, I would highly recommend, if you have 2 CPUs like myself, I would go with Custom looping.

Let me start with what I needed. I needed a quiet, compact, and pretty powerful PC. That always costs more than anyone ever thinks is reasonable. But I ventured forward anywho.Out of the gate, I had to replace the fans with some Noctua. The originals were obnoxious. I understand that these are designed for a server kind of situation but, they would work for other environments if there were offerings of quieter versions. I don't know why it doesn't exist. I run a ~110w CPU, overclocked, with a slim, single-slot GPU, in a 1U case. It's almost always dead silent at about two feet from my ear and mounted under the desk. There's a fish tank sound that takes about 30 seconds to dissipate, but then - SILENCE.It feels durable enough, but the Installation was a bit concerning. The hoses leave the CPU sink at a 90 degree elbow and land right where the CPU bracket-screws do. You end up having to bend the hoses over or around the screw. I didn't feel good about putting the pressure on the elbow to go around the screws and thought the hoses would get pinched no matter what I did so, I bent the hoses over top of the screws and crammed the lid on the case. It worked but, unsettling to install. On a side note, the hoses were a little long for my case and my be too short for others. It's just an observation. I would post a picture of all of this but, I am unwilling to open up that can of worms.After the $80 AIO, the $50's of replacement fans, and risk of breakage with some serious cramming, it has been worth it for me. I really do like this. I just can't recommend it for everyone - thus the three stars. I work with my hands, I have built many computers, and feel pretty confident about working with this stuff - but I was still worried about the assembly here. It's really too difficult and expensive for the effort - unless you really appreciate or need the outcome, I would look elsewhere.

It’s as good as the Dynatron HSF with three loud Barrel fans in the Supermicro CSE-512f-441B/CSE-512f-600B Chassis.But those fans are running at 12,000rpm to help keep CPU @ 53C @60-80% workload.I’m getting the same performance but noise level dropped due to the efficient radiator and design.Great shipper too. 1 day earlier than I expected.

This is good system for cooling processor in small cases (mini-itx or 1U).works only for processors without overclocking!

Due to the angle of the fittings on the CPU block, and the positioning of the mounting screws on the CPU socket for the 115X bracket, it's not possible to fit this in a 1U case as-is. You can see in my picture that I had to mount the CPU block at an angle from the CPU bracket. If you do anything else (and I tried *everything* else) the tubes are blocked by either the mounting bracket screws, the motherboard, or the top of the case. The radiator also does not offer much in the way of mounting options. Mine is effectively held in place by zip ties on the tubes and the top and bottom of the case. Based on what I had to do to get this thing installed I would give this one star; however, it did drop my CPU temp at idle by 30C and under full load by 20C, and it doesn't really have any competition. It could be so much better with a few small modifications to make it easier to mount..Updating review with another picture of my second install using one of these. I had to mount it at an even more extreme angle this time. If they’d just make those fittings long enough to get around the mounting screws this would be so much less annoying to use. Still worth the hassle for the cooling improvement.