ARCTIC Liquid Freezer III Pro 420 - AIO CPU Cooler, 3 x 140 mm Water Cooling, 38 mm Radiator, PWM Pump, VRM Fan, AMD AM5/AM4, Intel LGA1851/1770 Contact Frame - Black

I was looking for a liquid cooler without all the unnecessary extras but was excellent in what it was designed for . . . to cool the CPU. I have an AMD Ryzen 9950X CPU overclocked and this cooler has kept it below 80 deg C during max performance. Great cooler!

Replaced my Liquid Freezer II 420. This unit is so much better, temps have dropped 6 degrees compared to my old cooler. I am running an Intel i9-13900k and peak at ~58-61 degrees full load. Installation was very easy, the screws and hardware is labeled based on your socket. The included LGA mount fits nice and snug, no issues at all.

Top AIO! Sehr leise, extrem gute Kühlleistung und einfache Montage auf AM5. Der VRM-Lüfter ist ein super Extra. Ziemlich groß, aber wer Platz hat, bekommt hier das beste Preis-Leistungs-Verhältnis auf dem Markt!

Excellent cooling.Value for money .Good quality .Looks simple no RGB lighting which would be enough anyways unless you prefer tons of lighting.In default it’s silent and when it needs to throttle there is lots of noise but it gets your cpu cooled pretty effective.

I'm writing this as of 2 days of use after installation on an I9-14900k, one of the hottest-running and most troubled processors on the market. It is installed on the front panel of a Fractal North XL case, with fans in front in an intake configuration. This seems ideal to intake cold air instead of using the already hot air within the case to cool the radiator, and to avoid the convection heat from being at the top of the case. These conditions seem minimal but should increase thermal performance.The Bad:*Amazon lied about the shipping. Under the product listing, it claimed next day shipping, and then when it was in my cart it would only offer 2-day shipping.*Installation was a little weird as there was no rear bracket and I used the one I had from another aftermarket brace, which fit. Not a big deal for me, but some people may be confused or be missing a back bracket for LGA1700 chips.*Tightening the 2 screws on the pump header was a bit nerve-wracking since they had such heavy resistance and there's no physical instruction book.*The front panel of the Fractal North XL doesn't seem to click in fully with these big fans in the front, but I'll figure that out later.*The noise at full load is significant, but not really a problem for me since my headset has good ANC.*The "pseudo-fan with small fan inside" just magnetically clips onto the pump header. I'd feel better if it clipped on or screwed on.*The fan power cords that go through the water tubes are not long enough for the config I chose. I had to pinch the power cords a bit to get them in the front of the radiator.The Good:*That said, this cooler completely solved my temperature issues. I previously had an NXZT Kraken 360mm, and it was absolute garbage. One of the fan bearings went bad and made a ton of noise after just one year. The LED screen on the pump header never worked. It was either defective or just entirely inadequate for my processor, which is INSANE for how much I paid for that AIO (320$ at the time). I have been through hell trying to get this processor in a functional state between the BIOS updates and custom BIOS settings to limit voltage, and I was regularly pegging 100c on Battlefield 6 and other demanding games. I have it thermal throttled to 100c, but was is not ideal.*With the Liquid Freezer III Pro 420, I have not seen temps over 70c peak. Battlefield 6 causes that peak but runs at around 60-65c. Cities Skylines 2 is running at 55c currently.*The price point for this beast of a cooler cannot be beaten, especially if you don't need the LED version.All the bad points honestly negated by how relieved I am that I have my temps under control with this ridiculous processor plagued by issues. Whoever wrote the default intel settings and/or bios code must have lazily used AI and didn't troubleshoot or test it at all.

Best aio 420mm ! mais terrible coil whine sur un des fan et prends plus de plance que les autres aio de la même gamme !

It’s a 420mm aio at around the price of a 360 which is what drew me to it, does everything you would expect with some nice quality of life features as well. The tubing is long enough for basically any mounting orientation, the built in cable management for the fan wires and motherboard headers is great although I prefer to have separate control of fan speed and pump speed so I wound up with a few loose cables I had to manage myself. The mounting process was about as easy it can be for a radiator of this size, DEFINITELY take note of the space available in your case the combined thickness of the fans and the radiator itself can be a challenge. I should note however I had already planned on using an am5 contact plate that I had purchased myself so I can’t speak to how easily the heatsink installs over a traditional socket cover. The cooling performance has been great, I have been able to take advantage of a much more conservative fan curve and still maintain acceptable temperatures. I have mostly small gripes. There were no included instructions but a QR code in their place, maybe that won’t bother some but I don't enjoy having to navigate websites on mobile especially when it comes to looking at pictures. The included thermal paste tube is enough for basically a single install, two if you’re being extra frugal, which isn’t a big deal just something I wish cooler manufacturers at large would be better at. Overall I recommend, I mean it’s just a bigger version of the Liquid Freezer III 360mm after all, so it was bound to be good.

It hefty, but for dang good reason. This thing is a work horse. Keeps my AMD 5900X steady even during heavy load. It fit my case perfectly, the fans are quiet, but powerful, the all black looks sleek, and the stand alone CPU fan helps keep everything nice and cool. One 4 pin connector is all I needed to make it work, highly recommend.

I bought an extra-large computer case so that I could accommodate 3 x 140 mm cooling fans. This is cooler is a beast. Thus far, I have yet to see my AMD CPU show temperatures over 50 deg. C, even under 100% load. My only observation is that the fans are a little bit loud, but this seems like a small price to pay for the excellent performance.

Don't take my word for it, just go on YouTube and watch GanersNexus review it. Both the 360 and 420 score amazingly and if you don't like all the rainbow vomit like me, you won't be disappointed.

Excellent performance for the cost. With a 285k running cinebench and swapping the fans from the supplied ones to Noctua NF-14AG2s, I didn't see temperatures above 76C and during gaming I didn't see temperatures above 64C during even prolonged sessions with maximum graphics settings. The pump may be a little on the nosier side, but just treat it like a fan and make a pump speed vs temperature curve in your BIOS and it'll quiet right down.

Extremely well built, very easy to install, and surprisingly quiet. Haven't seen temps above 55° C since I installed it.NOTE: I must have missed it on the product page, but included with this AIO is their excellent MX-6 thermal paste---not pre-applied or some mass-produced ketchup packet, a commercially labeled tube of MX-6....I had to return the separate tube of MX-6 I had bought.