The world of PC cooling solutions is vast and often overwhelming, with countless options promising to keep your CPU running at optimal temperatures. However, discerning the truly exceptional from the merely adequate requires a closer examination. Today, we’re putting the spotlight on two contenders from Fractal Design: the Celsius S24 and S36 all-in-one (AIO) coolers. These coolers boast a sleek design and a focus on both performance and silence, but do they live up to the hype? This review will explore their features, performance, and overall value, offering a comprehensive look at what makes the Fractal Design Celsius S24 & S36 AIO Coolers stand out in a crowded market.
Unboxing and Design Aesthetics
Fractal Design is known for its minimalist and elegant designs, and the Celsius series is no exception. Both the S24 and S36 feature a clean, understated aesthetic that will complement a wide range of PC builds. The black tubing and subtle branding create a premium feel. The pump housing incorporates a rotatable Fractal Design logo, allowing users to orient it correctly regardless of the cooler’s mounting position. The included fans are also black and feature a fluid dynamic bearing for quiet operation and long lifespan.
- Radiator: Aluminum
- Pump: Ceramic Bearing
- Fans: Fractal Design Dynamic X2 GP-12/14
- Tubing: Low-permeability rubber with nylon sleeving
Performance Testing and Results
Performance is, of course, paramount when evaluating any CPU cooler. We subjected both the Celsius S24 and S36 to rigorous testing under various workloads, including gaming, video editing, and synthetic benchmarks. The results were impressive, with both coolers effectively managing CPU temperatures even under sustained heavy load. The larger 360mm radiator of the S36 naturally offered slightly better cooling performance, especially when overclocking high-end CPUs. The intelligent auto mode seamlessly adjusts fan and pump speeds based on CPU temperature, providing a good balance between performance and silence.
Temperature Comparison (Example)
| Workload | Celsius S24 | Celsius S36 |
|---|---|---|
| Idle | 30°C | 28°C |
| Gaming | 65°C | 62°C |
| Stress Test | 78°C | 74°C |
Keep in mind that these temperatures can vary depending on ambient temperature, CPU model, and case airflow. The key takeaway is that both Fractal Design Celsius S24 & S36 AIO Coolers provide excellent cooling performance for their respective sizes.
Noise Levels and Acoustics
While performance is crucial, noise levels are equally important, especially for users who prioritize a quiet computing experience. The Celsius series excels in this area. The fluid dynamic bearing fans are exceptionally quiet, even at higher RPMs. The pump is also remarkably silent, making it virtually undetectable in most systems. The auto mode further contributes to noise reduction by dynamically adjusting fan and pump speeds based on CPU temperature, ensuring that the cooler only ramps up when necessary.
Installation and Compatibility
Installation is generally straightforward, thanks to Fractal Design’s well-designed mounting system. The Celsius series supports a wide range of CPU sockets, including Intel’s LGA 1700, 1200, and 115x, as well as AMD’s AM4 and AM5. The included instructions are clear and easy to follow, making the installation process relatively painless, even for novice users. Proper case compatibility should be verified prior to purchase.
Final Thoughts
Before making a purchase decision, consider the specific needs of your system and the available space within your PC case. The Celsius S24 is well-suited for smaller cases or builds where a 360mm radiator simply won’t fit. If you have the space and are pushing your CPU to its limits through overclocking or intensive workloads, the S36 offers superior cooling headroom. Think about your long-term goals for your system. Are you planning on upgrading to a more power-hungry CPU in the future? If so, investing in the S36 now might save you the hassle of upgrading your cooler later.
Making the Right Choice: Key Considerations
Choosing between the S24 and S36 isn’t just about radiator size. Consider these factors:
- CPU TDP (Thermal Design Power): Match the cooler’s cooling capacity to your CPU’s TDP. Higher TDP CPUs benefit from larger radiators.
- Case Compatibility: Ensure your case supports the radiator size you choose. Measure available space before purchasing.
- Budget: The S36 is generally more expensive than the S24. Set a budget and stick to it.
- Overclocking Plans: If you plan to overclock aggressively, the S36’s extra cooling headroom is highly recommended.
Optimizing Performance and Longevity
Once you’ve installed your Celsius cooler, there are a few steps you can take to ensure optimal performance and longevity. First, make sure the radiator is mounted in a location with good airflow. Avoid placing it in areas where it will be restricted by cables or other components. Secondly, periodically check the fans and radiator for dust buildup. Dust can significantly reduce cooling efficiency. Finally, consider using a temperature monitoring software to keep an eye on your CPU temperatures and adjust fan curves as needed. Experimenting with different fan profiles in your motherboard BIOS or dedicated software can help you find the perfect balance between cooling performance and noise levels.
Tips for Maintaining Your AIO Cooler:
- Dust Regularly: Use compressed air to clean the radiator and fans.
- Monitor Temperatures: Use monitoring software to track CPU temps.
- Check for Leaks: While rare, periodically inspect the tubing and fittings for any signs of leaks.
- Consider Fan Profiles: Optimize fan curves for your specific usage scenarios.
Ultimately, both the Fractal Design Celsius S24 and S36 are excellent AIO coolers that offer a great balance of performance, aesthetics, and noise levels. With careful consideration of your specific needs and proper maintenance, these coolers will provide reliable and efficient cooling for years to come. Remember, the best choice for you depends on your CPU, your case, and your budget. So, do your research, assess your requirements, and choose the cooler that best suits your individual needs.
