Arctic Cooling designed the Liquid Freezer II series of all-in-one coolers for users who value subtle designs and seek a good price-to-performance ratio. The series currently consists of five coolers, ranging from a small single 120 mm version to the massive three 140 mm fans version that we reviewed today. All share the same main block and tubing, making the choice of radiator more of a compatibility matter than anything else.

Although they look very simple at first glance, the Liquid Freezer II coolers actually are niftily designed. They combine quality and elegance in an ingenious way rather than relying on colorful lighting to draw attention. The designer’s idea to incorporate the wiring of the fans into the cooler has several advantages, including quicker installation and a very clean appearance once installed. Our only worry lies with using the triple-fan models with low-end motherboards, as it's possible that the power circuitry of the motherboard may be overloaded by the entirety of the cooler’s power needs. Then again, there probably aren't too many builders and PC enthusiasts installing such a massive liquid cooler on a low-end motherboard to begin with.

In terms of performance, the Liquid Freezer II produces very good results. Their thermal performance seems to be excellent, with the cooler that we have tested outperforming similarly-sized competitors. Most of that advantage comes from the radiators, which do offer better heat exchange rates but, on the other hand, their thickness absolutely needs to be taken into account when determining if the cooler is compatible with a given case/system. Meanwhile, the acoustics performance of the Liquid Freezer II coolers is somewhat worse compared to that of similar offerings, with the small 40 mm fan on the main block being mostly to blame for these results. Nevertheless, the coolers are not actually loud or intrusive and most users would probably welcome the additional cooling for the motherboard’s vital power components.

Arctic Cooling is a company that typically designs practical, ‘no-frills’ products, aiming to perform reliably and retail at a reasonable cost. The Liquid Freezer II AIO coolers are no exception, as they are sporting a subtle design and offer excellent overall performance at a very reasonable price tag: the 240 model sells for just under $100, and even the mammoth 420 model is only $160 – at least if you can find it in stock.

Ultimately, If you are seeking to purchase a high-performance cooler and do not care about RGB lighting or other aesthetic features, the Liquid Freezer II coolers are equally capable products that retail at a significantly lower retail price than most of the competition and should definitely be on your shortlist for consideration.

Testing Results


View All Comments

  • whatthe123 - Friday, January 15, 2021 - link

    It's really more about the pump than the thickness. Other non-asetek pump solutions like the new lian li and EK perform basically the same as the liquid freezer 2. you'd need a really large die and a lot of power pulled through it before the rad became the real differentiating factor. Reply
  • Tunnah - Friday, January 15, 2021 - link

    What would be an interesting test is to see the temperatures with the fans running minimum speeds. I prefer quiet over temps so my 3700X/NH-D14 with 2 fans run at 300RPM-600RPM to keep it around 60c, and only spin up if it goes up to 80c. Been thinking about getting a beefier cooler so I can keep it cooler at the same sort of fan speeds. Reply
  • lorribot - Friday, January 15, 2021 - link

    Whilst maximum cooling potential is useful for those that can configure the system in a certain way (hide in a cupboard) it is not practical for most people, what would really good is temps and fan speed at a given noise level, such as 30db, 32db and 35db, then, given your personal preference/tolerance you would then buy based on performance at your prefered sound threshold and set fans to an appropriate speed. Using 7 volts an 12 volts is pretty pointless.
    I have never seen this sort of testing in any review.
  • Galcobar - Saturday, January 16, 2021 - link

    Gamers Nexus includes noise-normalized testing in its cooler and case reviews, and has covered most of the Liquid II line. Artic is at or near the top of the GN cheers for thermal/noise efficiency, despite the relatively lower MSRP. The fans of course play a large role in this, which is in line with their near-Noctua results in Optimum Tech's fan roundup. Reply
  • bug77 - Friday, January 15, 2021 - link

    I've always built my own system, but never understood the appeal of these. They're not quieter than air cooling and they come with a bunch of problems on their own. Reply
  • Spunjji - Monday, January 18, 2021 - link

    They can be quieter than air cooling if you're doing some serious overclocking, not to mention you then avoid having the 1Kg+ of weight you'd need hanging off your motherboard to get similar cooling potential with air alone. It can also allow you to remove the heat directly from the case with the right case design (venting from the top).

    I'd agree that it's overkill for the majority of users, though. The last time I used AIO coolers were with adaptors for GPUs, which made way more sense - I could get a combined cooling and noise level combination that was simply impossible with air cooling, but cheaper than a custom loop.
  • Solidstate89 - Monday, January 18, 2021 - link

    I don't know why you'd make such a blatantly false statement but these AIO coolers are almost always quieter than an air cooler. Reply
  • Dug - Monday, January 18, 2021 - link

    That is not true if you look at any normalized sound testing. In almost all cases a good air cooler will be quieter because you don't have pump noise, and you have less restricted air flow. Noise is going to come from two things, fans and pump. While pump noise may not be loud, it can be annoying. Like a mosquito isn't loud, but killing it makes all the difference in the world. Reply
  • cellarnoise - Friday, January 15, 2021 - link

    1st post on a product review since 1997 ish? I can't remember my original user name or password, but keep coming back here a long time. I'm preparing for a 5950x if I can ever find one, so I bought this 420. Love it. Running in a slightly modified Fractal s2 case that I modified to move the 420 closer to the glass side of case away from the motherboard so my mid-height RAM could fit without touching the AIO. Love it! Running on 1700x at 3.8 BOINC load 24/7 it is much quieter as fans sit under 500 rpm for 130w load. At anything but idle this runs much quieter than the single tower Noctua NH-U14s that I had on this before and I have another equivalent on an 1950x sitting in a solid sided Fractal R5. I love the silence and hope it does well on the 5950x at 250W or so. Reply
  • Dorkaman - Saturday, January 16, 2021 - link

    Hi are the radiator copper or aluminum? Custom looos are usually copper and have considerably better heat sink. Reply

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