ARCTIC Freezer 4U-M (Rev. 2) for AMD and Intel, 4U & UP, Server CPU Cooler

I installed this on a Threadripper 1950x ( TR4 socket), and it works perfect. Idle CPU temps are site between 27C - 34C. This is even better than the watercooler I replaced. I built my PC back in 2017. It has a Threadripper 1950x. When I built the PC I used one of the Enermax Closed loop all in one water Cooling systems. These systems are not know for their quality. Reviews all over the web calling them trash. When I first installed it I replaced the coolant with better stuff, and as a result is has run reliably for 8 years. Finally I noticed my fans were randomly running at full blast, when I was not doing anything intensive. I checked my CPU temp and it was 76C. Which was high, then I heard some squeling from inside the PC. I determined it was the Water Pump going out. I took it part and cleaned it, used new fluid, but that didn't help, it still continued to have issues, with CPU temps slowly climbing up to 90C, and the PC starting to lag as the CPU attempted to downclock itself to stay cool. So I needed to get a new cooler. Unfortunately most local retailers are not going to stock any coolers compatible for the TR4 socket. I took a leap of faith and bought this from amazon, hoping it would fit. I was a little concerned as some mentioned the fans bumping into the motherboard heatshield, and loosing access to one of the PCIE slots. I am running an Gigabyte X399 Aorus Pro-CR and it fits perfect. I even have RGB LED memory and there is just barely enough clearance for the heatsink to not touch. The fan closest to the PCIE does leave a tight gap, but I moved around my cards to ensure a smaller card is right next to it to ensure its not blocking any airflow. Wish I would have bought this years ago. It cools just a well if not better than the old Enermax AIO water cooler it replaced. Highly recommend. It does a great job Update 2/17/2026 Just wanted to update everyone, This is by far one of the best purchases I have made for my PC. I used to CPU mine crypto, but back when I was cooling with water, it wouldn't stay cool. Just now tried mining again. Running with 16 Cores and 20 threads, CPU temp sits at 59C. This is such a great cooler. Don't waste your money on water cooling, just get one of these. Simple, and effective. Plus when fans go out some day I can replace those.

No idea why this is listed as “Frequently returned”. People must not know what they are buying. It’s an excellent cooler, much better and 1/3rd the price of the Noctua alternative. Currently using this with an ASUS Sage TRX50, Threadripper 9970x and it works flawlessly and is very quiet, given that it is cooling 350w. Max temps all core at stock are around 85c or so with a non-agressive fan curve. Somewhat annoying to install at least compared to AIOs, but threadripper aio’s are upwards of $400 and this was like $55. No brainer for no maintenence or worry about leaks on a $6000 system. 10/10 very pleased.

Wanted to like this, but the mounting process is entirely too fiddly. It's impossible to adjust the mounting adapters after placing the cooler over the cpu. And if the adapter is not precisely aligned, then one or more of the holes will not be properly aligned, and the cooler will not screw in. This can mean repeated trials of adjusting putting the cooler in place, trying to screw it in, then removing it, adjusting slightly, trying again. Repeat, repeat, repeat. Other coolers have precision adapters and use spring mounts. There's a reason this has a lower price. Pros: Offers good cooling if it can be properly installed. Cons: If using the adapters, it can be a time consuming chore to line up all of the screws. Fans are custom and can't be replaced with stock 120mm fans. Fins are not aligned well. For use on SP6, cannot recommend.

I used the Arctic Freezer heatsink/fan to replace the stock one supplied by Supermicro in the AS-5014A-TT Workstation. With the default cooler supplied by Supermicro the system idles around 52-56 degrees, but the big problem is when doing heavy CPU work such as compiling the Linux kernel the CPU temp creeps up to 95 degrees and triggers an alarm and starts throttling the CPU. With the Arctic Freezer the CPU now idles at 45 degrees and compiling the Linux kernel it peaks at 73 degrees which is well under the 95 threshold. Further more the Arctic Freezer pulls in air from the front of the chassis and exhausts it out the back in the correct direction, where Supermicro's engineers through it was a good idea to pull air from a hot GPU and exhaust it out the top.

Got this bad boy cooling my 2920x Threadripper CPU on an Asus ROG Zenith Extreme Alpha board. Picked everything up of Marketplace for $500 bucks with RAM and waterblocks included, but it was much more cost effective to put this bad boy in and worry about building a custom water cooled system later. I wanted to get Proxmox going and build out a media center ASAP, so I went this direction instead and honestly, unless I add a third GPU and need the space, I'll probably forgo the water cooling for a while. This thing fit fine around all my RAM, on both sides of the CPU. No clearance problems personally. Although one of the fans wont seat all the way due to a built in cooler my mobo has on it. Still, it functions fine and fits in my 4U rackmounted case no problem. And its relatively quiet as well, enough that I dont notice it above any of the other fans in the case. I only have two minor gripes. One would be that its difficult to get it to seat and screw in. I kept thinking it was seated and I'd start to screw it in the rest of the way slowly, in the trusty old star pattern all men use on anything with multiple screws, and low and behold it would pull one corner or one side out and I'd have to start over again. I honestly started to question whether or not it fit. But it does. It just takes some slight finesse. Beyond that, the amount of thermal paste that came with this unit was minuscule, and for me, unsatisfactory on a chip this size. Its like, maybe half a normal tube if that. Looks like 1/4 of a normal tube. Luckily, I had a spare on hand that came in handy. I would reccomend purchasing some just in case, as its not expensive and better safe than sorry in my experience.

This doesn't fit in the motherboard because the cooler orientation and the direction the air flows is wrong. One fan hits a heat shiel and the other blocks the GPU slot. The screws were extremely difficult too and alignment was difficult to obtain. I have a ASRock Fatality X399 board so if you have this board it's a no go.

Keeps temps down with very little noise. However, For Supermicro dual CPU motherboards it won’t blow into the VRM’s like 2U ones, and the fans takes a lot of volume, had to lift the fans for half a inch to fit another little fan for VRM. Luckily the Arctic fan cal slide up and down the fin pack so not a problem

Worked great for my 1st gen threadripper

Bellissimo dissipatore, fatto davvero bene. Peccato che nel mio pc non ci stia, ho due cpu e le ventole non ci stanno tra i due disdipatori, girando di 90 gradi invece le ventole toccano le ram. Bellissimo prodotto purtroppo non adatto al mio pc, peccato.

These are some fantastic coolers! The price might seems a bit high, but it's a right price for what it offers. I moved a Supermicro H11DSi-NT + 2 Epyc 7742 from a 2U rack server into a 4U/5U case and when running 100% these 2 keeps the CPUs around 65C. Yes, they both fit on this motherboard and yes you can still add/remove the RAM modules that are right under the heatsink. Even at full load these are incredibly quiet. The package includes thermal paste and the adapter for Xeon, which is a plus.

Ciężki i duży, i dużo mniej solidnie i estetycznie wykonany niż Noctua ale tańszy i może być. Niestety wymaga dedykowanych, własnych wentylatorów.

At max RPM it’s managed to keep the Epyc 7532 at a max of 43c in a 22c ambient room with poor airflow. At about 1000 RPM it maxes at 55c this test was done under full load. Attaching the cooler to the brackets isn’t like the usual consumer grade coolers, make sure you attach the brackets to the cooler first and the screws get screwed in from underneath to keep the bracket in place or at least for the AMD side of things. I tried attaching the brackets to the board and cooler after the fact and well, it was a lesson learned. Impressive cooler for impressive value. I was going to add my P12 Max fans to this but the fans that come with the cooler are more than adequate.

Als Ersatz zur Wasserkühlung gekauft Also einen Threadripper mit einer Wasserpumpe zu Kühlen sollte ja eigentlich ausreichend sein aber nein die versagen und der Threadripper hat im Idle bereits 64Grad Mit diesem Kühler konnte ich einem Threadripper wieder ordentlich Abkühlung verschaffen. Er bleibt bei 34Grad im Idle und geht auch sehr schnell wieder runter wenn er mal über seine Temperatur geht. Es soll schon weiß heißen wenn eine CPU von 64 auf 34 Grad runter gekühlt werden kann. Was eine Wasserkühlung nicht mehr Schaft, Schaft ein ordentlicher Luftkühler.