ASUS ROG Ryujin III 240 All-in-one Liquid CPU Cooler with 240mm Radiator. Asetek 8th gen Pump, 2X Noctua industrialPPC 120mm Fans, 3.5” Color LCD
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AI Verdict
This is a 240mm AIO liquid CPU cooler with an 8th gen Asetek pump, two Noctua industrialPPC 120mm fans, and a 3.5-inch color LCD, built for high-performance gaming systems.
This cooler is a strong fit for users building high-performance gaming PCs with demanding CPUs, offering an 8th gen Asetek pump and Noctua fans for effective cooling. The 3.5-inch LCD display adds a significant aesthetic and monitoring advantage for enthusiasts.
If you're pushing extreme overclocks or have a larger case, consider a 360mm radiator version for even greater thermal dissipation.
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Pros
- The 8th gen Asetek pump with a 3-phase motor delivers high cooling performance for demanding CPUs.
- Noctua industrialPPC 120mm PWM radiator fans provide high airflow while maintaining minimal noise levels.
- The 3.5-inch LCD display shows real-time hardware information and supports custom GIF animations with doubled file volumes (up to 32MB and 2000 frames).
- An embedded fan with a ring-shaped frame design improves heat reduction around the VRM area.
- Installation is simplified by magnetic fan connectors and a single cable assembly.
- The radiator is 30mm thick, 3mm thicker than the previous generation, for improved cooling capacity.
Cons
- Requires ASUS Armoury Crate software for full control of pump, fan speeds, and LCD customization, which some users find problematic.
- The embedded VRM fan's effect on VRM temperatures can be negligible (around 1 degree Celsius) and can become loud at high RPMs.
- The 3.5-inch LCD screen's graphic quality is not considered high-definition by some users.
- Upgrading from the Ryujin II offers only a 3-5 degree Celsius temperature difference at full load, making it a questionable upgrade for cooling performance alone.
Dimension Scores
The 8th gen Asetek pump, combined with Noctua industrialPPC fans and a 30mm thick radiator, provides high cooling capacity for demanding CPUs.
The Noctua industrialPPC fans are designed for minimal noise operation, and users report the noise is contained, often being covered by case fans.
It features industrial-grade Noctua fans, an aluminum radiator, and users describe the packaging as 'impeccable' and finishes as 'neat & impeccable'.
The magnetic fan connectors and a single cable connection for the pump and fans simplify the installation process and reduce cable clutter.
Best For
- PC builders running high-end CPUs like the Ryzen 9 9950X or Intel i9-9900K who need significant thermal management.
- Users prioritizing system aesthetics and customization with a prominent, programmable display on their CPU block.
- Enthusiasts seeking a liquid cooling solution with high-quality, low-noise fans.
- Those who want to monitor hardware information directly on their cooler's display.
Not Recommended For
- Users on a strict budget, as this cooler is positioned in the mid-range to high-end price bracket.
- Individuals who prefer to avoid proprietary software for hardware control and customization.
- Users with limited case space, as the 240mm radiator and pump block require specific clearances.
Watch Out For
- Armoury Crate software is almost mandatory for full functionality, and users report it can be resource-intensive or difficult to manage.
- The embedded VRM fan, while present, has a minimal impact on VRM temperatures (around 1°C) and can generate noticeable noise at higher speeds.
- The LCD screen, while functional for monitoring and GIFs, has a resolution that some users find less sharp than expected.
- Users upgrading from the previous Ryujin II might only see a 3-5°C temperature drop at full load, which may not justify the cost for cooling performance alone.
Full Specifications
| UPC | 197105048164 |
| ASIN | B0C8BT4Q9G |
| Brand | ASUS |
| Voltage | 12 Volts (DC) |
| Wattage | 3.1 watts |
| Material | Aluminum, Metal, Plastic |
| Item Weight | 3.1 pounds |
| Noise Level | 36.45 Decibels |
| Manufacturer | ASUS |
| Cooling Method | Fan, Water |
| Number of Items | 1 |
| Item model number | ROG RYUJIN III 240 |
| Compatible Devices | Desktop |
| Package Dimensions | 12 x 9 x 6 inches |
| Power Connector Type | 4-Pin |
| Maximum Rotational Speed | 2000 RPM |
What Buyers Say
Users consistently highlight this cooler's ability to significantly drop CPU temperatures, with some reporting gains of 10°C in both idle and under load conditions. The 3.5-inch LCD screen is a major draw, allowing for personalized system monitoring and custom GIF displays, which many find to be a standout feature. However, the necessity of ASUS Armoury Crate software for full control is a recurring point of frustration, with some users actively seeking ways to minimize its impact or uninstall unnecessary components. The embedded VRM fan's effectiveness is also debated, with some finding its impact negligible and its noise noticeable at higher RPMs.
“Man, this thing cools my i9 like a champ, and that screen is so cool for my custom GIFs, but seriously, Armoury Crate is a pain to deal with.”
Common Praise
- Achieves significant CPU temperature drops, with some users reporting 10°C gains.
- The 3.5-inch LCD display is highly customizable for system stats and personal GIFs.
- Quiet operation, with Noctua fans keeping noise levels contained.
- Build quality is described as 'impeccable' with 'neat & impeccable finishes'.
- Installation is straightforward, especially with magnetic fan connectors and simplified cabling.
Common Complaints
- Armoury Crate software is often seen as bloatware and is difficult to manage or uninstall fully.
- The embedded VRM fan has a minimal impact on VRM temperatures and can be noisy at higher speeds.
- The LCD screen's resolution isn't as sharp as some users expect.
- The cooling performance upgrade from the Ryujin II is only 3-5°C at full load, which might not justify the cost for existing owners.
Ownership Tips
- You'll probably spend some time tweaking Armoury Crate settings to get it just right, or trying to minimize its background processes.
- The VRM fan might be better off running at a very low RPM or even off, as its cooling benefit is often outweighed by its noise.
- The LCD screen's visual quality is decent for system stats and simple animations, but don't expect smartphone-level clarity.
- The magnetic fan connections are genuinely helpful during installation and make future maintenance easier.
Frequently Asked Questions
What kind of performance can I expect from the 8th gen Asetek pump?
The 8th gen Asetek pump features a 3-phase motor designed for ultimate cooling performance, offering higher flow, lower impedance, and reduced noise compared to previous generations.
Are the fans loud?
The cooler uses industrial-grade Noctua iPPC-2000 PWM fans, known for delivering high airflow with minimal noise, and user reviews confirm contained noise levels.
What can I display on the 3.5-inch LCD screen?
The 3.5-inch LCD display can show real-time hardware information like temperatures and frequencies, or you can upload custom GIF animations and JPEG files. It supports up to 32MB of memory and 2000 frames for GIFs.
Is the embedded VRM fan effective?
The embedded VRM fan is designed to reduce heat around the VRM area. However, some testing indicates its effect on VRM temperatures can be minimal, around 1 degree Celsius, and it can become loud at high RPMs.
Do I need special software to control this cooler?
Yes, ASUS Armoury Crate software is required to control pump and fan speeds, as well as to customize the LCD display with animations and system stats.
Buying Guide
When you're looking at an AIO liquid CPU cooler like this, you're essentially buying a self-contained cooling loop for your processor. The main goal is to keep your CPU temperatures low, especially under heavy loads from gaming or demanding applications. You need to consider if your PC case has enough space for the radiator and fans, and how important aesthetics and extra features like an LCD screen are to your build.
240mm Radiator
Asetek 8th gen Pump
Noctua industrialPPC 120mm Fans
3.5-inch Color LCD
Alternatives
If this 240mm model isn't enough for your thermal needs, look for AIOs with larger radiators, such as 360mm or 420mm, which offer more surface area for heat dissipation. If you want to avoid proprietary software, research coolers with open-source control options or simpler, hardware-controlled fan curves.
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