Arctic Liquid Freezer II 240 Review: Quiet i9 Chiller (2024)

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Specifications for the Liquid Freezer II 240

Packing and Included Contents

The Arctic Liquid Freezer II 240 is packaged in a medium box, with shaped cardboard inserts and plastic coverings to product the parts during shipping.

Included with the package are the following:

• CPU block with VRM fan
• Radiator with pre-installed fans
• Mounts for modern Intel & AMD platforms
• Small tube of thermal paste

Cooler Installation

Installing the Liquid Freezer II 240 was fairly simple. To begin, you attach the studs to the backplate and secure them using the O rings. After pressing the backplate to the motherboard, you need to screw in the standoffs. Apply the included thermal paste from the syringe and then mount the CPU block and secure it with the thumbscrews.

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See Also

Multi-Compatible All in One CPU Water Cooling | ARCTICArctic Liquid Freezer II 360 ARGB Review: Quiet Cooling PowerArctic Liquid Freezer II 280 AIO Cooler Review: Unique, Affordable Performance

New Testing Configuration

Features of the Liquid Freezer II 240

• Unique VRM Fan

Arctic’s Liquid Freezer II incorporates a small fan atop the CPU block which helps dissipate heat and cool the VRMs surrounding the CPU.

• Thick Radiator

The radiator included with the Liquid Freezer II is extremely thick–1.5 inches or 38mm to be precise. This is good for cooling, but also means you’ll need a case with more clearance, about 2.5 inches when you add the fans.

• Dual Pre-Installed Arctic P12 Fans

There’s more to an AIO than just the radiator. The bundled fans also have a significant impact on cooling, noise levels, and performance. Included with the Liquid Freezer are two P12 120mm fans, which are pre-installed for convenience. These fans include bearings developed in Germany, which use an alloy and lubricant combination designed to reduce friction and noise.

I'll be testing Arctic’s Liquid Freezer II 240 with Intel's i9-12900K. Due to the increased thermal density of the Intel 7 manufacturing process, as well as changes to core and component layouts, Alder Lake CPUs are more difficult to cool than previous generation CPUs in the most heat-intensive of workloads.

This means that coolers that kept previous generation products like the i9-10900K nice and cool sometimes struggle to keep Intel's i9-12900K under TJ max–the maximum temperature before the CPU starts to throttle. Many coolers that I’ve tested fail to keep the i9-12900K under TJ max when power limits are removed in workloads like Cinebench and OCCT when I’ve tested them, including many coolers I previously considered “top of the line.”

Please note there are many factors other than the CPU cooler that can influence your cooling performance. A system's motherboard can especially influence this, as there are boards on the market with CPU sockets that aren't up to Intel's spec, which can cause warping or poor contact with the CPU. The case you use will also influence cooling results.

With Alder Lake's cooling demands in mind, I'll be rating CPU Coolers in 3 different tiers.

Tier 1: These coolers are able to keep the i9-12900K below TJ max in most loads, with no power limits enforced. I expect only the best liquid coolers to meet this standard.

Tier 2: These coolers are able to keep the i9-12900K under the TJ max threshold with CPU power limits of 200W enforced. I expect most liquid coolers and the best air coolers to meet this standard.

Tier 3: These coolers are able to keep the i9-12900K under TJ max with CPU power limits of 140W enforced.

Testing Methodology

To test the limits of a cooler's thermal dissipation capabilities, I run two primary stress tests: Cinebench and OCCT each for 10 minutes. While this may be a short amount of time, it is sufficient to push most coolers–air and liquid–to their limits.

While stress testing in Cinebench, I run both with power limits removed and with an enforced 200W CPU power limit. In this test setup I’m using MSI’s z690 A Pro DDR4 Motherboard and Be Quiet’s Silent Base 802 Computer Case. Only the best coolers are able to pass Cinebench testing when power limits are removed.

I don’t test OCCT without power limits because attempting to do so results in CPU package power consumption jumping to over 270W and instantly throttling with even the best AIO coolers. Instead, I test at 200W to give coolers a chance at passing. I also include 140W to give data comparable to a CPU like Intel’s i5-12600K. 95w results are also included to give data closer to low-TDP CPUs such as AMD’s Ryzen 5600X or Intel’s i5-12400.

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