ARCTIC Freezer 4U-M (Rev. 2)

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.

I have the ARCTIC Freezer 4U-M (Rev. 2) on an AMD 9985wx and 9975wx in a 4RU server case. Air direction perfectly aligns with the 4RU in/out flow. Keeps temps between 38c and 42c under normal load. Although it can be challenging to engage the mounting screws, a little alignment finessing while keeping pressure on the screws does the job.

I'm incredibly impressed. I've been a fan of Arctic for a while (pun intended), so this one seemed like a no-brainer for my Epyc/Threadripper builds. It cools well and is barely audible, even under load. My only complaint is the mounting — I had to put an absurd amount of force on the cooler to get the screws to catch. Once you get it on, it's not going anywhere though.

Improperly fabbed. Will not go together. I checked multiple install instructions and a youtube video, none of the other installs have a half a screw hole and then a full one. It looks like it was improperly manufactured. I had to cut part of the heatsink off to make it fit.

Great CPU fan. I needed this fan to match the orientation of my server motherboard to move the air front to back. This fits the bill! Came with mounts for Intel and AM4 sockets. Perfect fit, easy installation. It is 2 fans which are whisper quiet. One can's cable has a female option so both fans can be plugged into the same fan header.

Using this on a EATX case build and not a server chasis. Install Pretty OK but you have to put some some downward pressure on the screws to get them to start threading. Be advised that the thermal past that came with mine was dried out so might want to get another tube with it. Fans are very quiet at no load and is keeping my Threadripper 9960 at 35C. Intake fan did not slide all the way down (~3/8" off)t due to the VRM heatsinks on an Asus TRX50 Sage Wifi A board. Not the coolers fault.

Great CPU cooler for my needs. Keeps my Threadripper 9960X nice and cool (~35C) at idle with the fans barely spinning. Some notes, though - as stated by other reviewers, the mounting screws need a fair bit of pressure to get them to engage with the mounting threads on the motherboard (the springs need to be slightly depressed so the screw can meet the mounting bracket), making install a bit more difficult than expected. Additionally, the intake fan doesn't slide completely over the front in my Asus Pro WS TRX50-SAGE WIFI A motherboard due to interference with the VRM, but it doesn't seem to impact its cooling ability at all.

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.