ULN
ULN without Low Noise Adapter 43.8Db at 800 RPM andULN with Low Noise Adapter (NA-RC12) 44.3Db at 600RPM.
These fans in their various set ups give very good air flow performance when used as an exhaust fan, but they give even better performance when used to quieten a chassis down. Despite their low noise credentials we found a flatter performance profile when it comes to cooling. Giving the chassis one exhaust fan and no intake fan gave each version the job of intake and exhaust, not an easy task.
All of our tests show a ceiling of around 80 Degrees °C which is mainly down to the CPU and CPU’s coolers stepping in and managing the peaks in temperatures.
We saw no heat soak issues with out chassis and one fan managed the airflow just fine. The dips in temperature are between games, with the Noctua NF-S12A’s give relief to the internal components in a short time.
Conclusion
Using the three variants of the same fan it was clear that a system builder could manage airflow and noise with a high degree of accuracy. The level of design and thought in these fans is amazing, you will know it when you feel and open the box.
Over default chassis fans these are an impressive option, and with the number of configurations and out of the box noise reduction rubber corners and mounts, they will make any chassis a quieter and better performing rig, from gaming to office set ups. The attention to detail is amazing, with the different connectors using resistance to manage the RPM and extensions, rubber mounts and unique instructions for each fan version, they are recommended.
Noctua NF-S12A FLX, ULN and PWM Series FanS
Noctua NF-S12A FLX, ULN and PWM Series Fan Review
Package - 9.5
Performance - 9.2
Price - 9
Consumer Experience - 9.5
9.3
Using the three variants of the same fan it was clear that a system builder could manage airflow and noise with a high degree of accuracy. The level of design and thought in these fans is amazing, you will know it when you feel and open the box.