The Thermalright AXP90-X36 is a compact low-profile CPU cooler designed for small form factor builds, featuring a 36mm profile that fits HTPC and ITX cases. According to TensorScience, it offers broad compatibility with Intel and AMD sockets and includes a nickel-plated copper base for efficient heat transfer. The cooler operates quietly at 22.4 dB and is well-suited for users seeking reliable cooling in space-constrained environments. However, it lacks mounting stops that could risk motherboard damage if overtightened, and it's not recommended for overclocking or high-intensity workloads. This cooler is ideal for casual users and regular desktop users who prioritize quiet operation and space efficiency.
Full review
Compact dimensions for SFF builds
The Thermalright AXP90-X36 is engineered specifically for small form factor (SFF) systems, with a height of just 36mm that allows it to fit within ultra-compact cases where traditional tower coolers would be impossible. Tensorscience measured the cooler's dimensions at 94.5×95×36mm, confirming its ultra-low profile design. This makes it an ideal choice for users building HTPC setups, mini-ITX systems, or any build where space is at a premium. The compact size also means it avoids interfering with RAM or PCIe slots, a common issue with larger coolers. The aluminum heatsink combined with a 92mm PWM fan provides adequate cooling without compromising on system compatibility.
The design of the AXP90-X36 prioritizes space efficiency, with a nickel-plated copper base that enhances heat transfer. This base is compatible with both Intel and AMD sockets, though some users have noted that installation can be tricky, especially with AM4 mounts. The cooler includes all necessary mounting hardware and comes with a clear manual, though some reviewers have reported confusion regarding the bracket replacement process. For example, one YouTube reviewer noted that the LGA 115X bracket was not suitable for AM4 CPUs and required removal and replacement with a different bracket, adding complexity to the installation process.
Despite its compact size, the AXP90-X36 is not without limitations. The cooler's thermal capacity is rated at 95W, which is sufficient for most mainstream CPUs but may not be adequate for high-end overclocking or sustained heavy workloads. Tensorscience observed that while the cooler performs adequately in standard use, it does not match the performance of more robust cooling solutions like the Noctua NH-L9i, which is priced significantly higher. However, in terms of value for money, the AXP90-X36 offers a solid compromise for users who prioritize low profile and quiet operation over peak performance.
Installation challenges and mounting issues
Installation of the Thermalright AXP90-X36 requires careful attention to detail, particularly when mounting on AM4 motherboards. A YouTube reviewer who tested the cooler noted that the mounting process is more complex than typical coolers, as it involves installing the heatsink fan first, flipping it, and then attaching the backplate. This unconventional installation sequence can be cumbersome, especially when working with an existing system. The reviewer also pointed out that the mounting plate for the cooler is poorly designed, causing the cooler to sit at an angle if not properly aligned. This issue was identified after installation, prompting users to remove the bracket entirely and mount the cooler without it.
Another challenge reported during installation is the lack of stops on the mounting screws, which can lead to overtightening and potential motherboard warping. Tensorscience warned that users should approach installation with caution, as the absence of screw stops makes it easy to over-tighten. The manual provides instructions, but some users have found the process more difficult than expected. One reviewer described needing to use pliers to adjust pre-installed nuts and screws, highlighting the need for careful handling during assembly. Additionally, the manual's wording regarding bracket replacement was confusing, leading to uncertainty about proper installation for different CPU sockets.
Despite these challenges, the cooler is still considered a viable option for those who prioritize low profile and quiet operation. The included thermal paste and fan are sufficient for most users, and the overall build quality is solid. However, users who plan to frequently replace CPUs or perform maintenance on their systems may find the installation process more frustrating. The cooler's compatibility with a wide range of CPU sockets is a plus, but the complexity of mounting can be a deterrent for less experienced builders.
Performance in standard and overclocking scenarios
In standard desktop environments, the Thermalright AXP90-X36 delivers consistent cooling performance, particularly for users who do not engage in heavy overclocking or high-intensity tasks. Tensorscience noted that while the cooler does not significantly outperform the stock cooler in terms of thermal performance, it does offer quieter operation and better heat dissipation. The cooler's performance is adequate for mainstream CPUs like the Ryzen 5 5600G, where it provides a noticeable improvement over stock cooling. However, for more demanding applications, the cooler's 95W thermal capacity may be insufficient.
A YouTube reviewer who conducted a temperature test compared the AXP90-X36 against the Noctua NH-L9i, which is twice the price. The test revealed that the AXP90-X36 achieved a temperature of 96°C under load, while the Noctua NH-L9i reached 97°C. While the difference is minimal and within a margin of error, the AXP90-X36 offers comparable performance at half the cost. This makes it an attractive option for budget-conscious users who want reliable cooling without breaking the bank. However, for users who require maximum cooling efficiency, especially in overclocking scenarios, the AXP90-X36 may fall short of expectations.
The cooler's performance is also affected by its low-profile design, which limits the amount of heat pipes and surface area available for heat dissipation. While the AXP90-X36 includes four 6mm heat pipes, this configuration is less effective than larger coolers with more extensive heat pipe arrays. The PWM fan helps regulate noise levels, but the cooler's overall performance in high-temperature environments is limited by its compact form factor. Users who plan to use their system for gaming or content creation under sustained load may find that the cooler struggles to maintain optimal temperatures.
Noise and power consumption
The Thermalright AXP90-X36 operates quietly, with a maximum rotational speed of 2700 RPM and a noise level of 22.4 dB. Tensorscience measured the cooler's power consumption at 3.6 watts, which is relatively low for a CPU cooler. This makes it suitable for users who prioritize quiet operation, especially in HTPC setups or home offices where noise can be disruptive. The PWM fan allows for dynamic speed control, which helps maintain low noise levels during light usage while providing sufficient cooling under load.
The cooler's low power consumption is one of its strengths, particularly for users building energy-efficient systems. The 12V DC voltage and 4-pin power connector ensure compatibility with standard PC power supplies. The fan's quiet operation is further enhanced by the cooler's design, which minimizes vibration and airflow turbulence. However, some reviewers have noted that the fan's performance may not be sufficient for high-end CPUs or systems with significant heat output. In such cases, the cooler may struggle to maintain optimal temperatures, leading to potential thermal throttling.
Despite its quiet operation, the AXP90-X36's low-profile design limits its ability to dissipate heat effectively. This can result in higher temperatures under sustained load, particularly when compared to larger, more robust coolers. The cooler's performance in this regard is acceptable for casual users but may not meet the demands of enthusiasts or professionals who require maximum cooling efficiency. The PWM fan's ability to adjust speed based on thermal conditions helps mitigate some of these issues, but it cannot fully compensate for the cooler's inherent limitations.
Compatibility and build quality
The Thermalright AXP90-X36 is compatible with a wide range of CPU sockets, including both Intel and AMD platforms. Tensorscience confirmed that the cooler's aluminum heatsink and nickel-plated copper base provide good thermal conductivity and durability. The build quality is solid, with attention to detail in the design and materials used. However, some users have noted that the mounting hardware is not as robust as it could be, particularly the lack of stops on the screws, which can lead to overtightening and potential motherboard damage.
One of the most significant aspects of the cooler's compatibility is its ability to work with various CPU sockets, including AM4 and LGA 115X. However, the installation process for AM4 CPUs requires removing the backplate and replacing the mounting bracket, which can be a source of confusion for some users. The manual's instructions are not always clear, leading to potential installation errors. Additionally, the cooler's design does not include a backplate for AM4 CPUs, which can result in improper mounting and suboptimal performance.
Despite these issues, the AXP90-X36 is still considered a solid option for users who prioritize low profile and quiet operation. The cooler's performance is adequate for mainstream CPUs, and its build quality is sufficient for most users. However, those who plan to overclock or use high-end CPUs may find that the cooler's limitations become apparent under sustained load. The cooler's value proposition lies in its ability to provide reliable cooling in space-constrained environments, making it a suitable choice for SFF builds and casual users who do not require maximum cooling performance.
Strengths
- +Ultra-low profile design at 36mm height suitable for HTPC, ITX, and slim cases
- +Broad compatibility with various Intel and AMD CPU sockets
- +Nickel-plated copper base provides durable heat transfer
- +Quiet operation with noise level measured at 22.4 dB
Watch-outs
- −Lacks mounting stops on screws which could risk bending motherboard if overtightened
- −Not suitable for overclocked CPUs or high-intensity operations
How it compares
The Thermalright AXP90-X36 is the most compact option at 36mm, but it's less performant than the AXP90-X47 which offers better cooling efficiency. Compared to the ID Cooling IS-47-XT v2, it's more affordable and quieter but lacks the flexible mounting options and improved installation features of the IS-47-XT v2, making it better for casual users who prioritize quiet operation.
Rating sources
“The Thermalright AXP90 X36, with its low-profile design, strikes an attractive balance between form and function.”
“it is safe to assume that the sumar is on par at half a price of noct you not sure this gr not be eror for each price”
“the mounting plate for the thermal right X90 is crap and the problem is is you'll only find this out once you've actually fitted everything”
Our 3.7 score is the average of the 3 scored reviews above; 1 more reviewed it without printing a score and is not in the average. Ratings marked * were derived from the reviewer’s written analysis or video transcript — the publisher didn’t print an explicit numeric score, so we inferred one from their own words. Click through to verify. More about methodology.
