Ultimate NCASE M1 Cooling Setup

**Cooling Solutions for the End Case M1**

As I've been experimenting with different cooling solutions for my End Case M1 build, I've found that using fans as rear intake rather than exhaust makes a significant difference. The main reason for this is due to the way I currently have my GTX 1080i configured for cooling using the bare Exelero three heatsink and then two 120 millimeter static pressure fans underneath running in exhaust. This setup allows me to keep the 1080i under 60 degrees Celsius at full load, with the VRM and memory temps also in check.

**Testing the Cooling Solutions**

To test my cooling solutions, I used a Blender render and took a 30-second average of the temperatures for all six GPUs after the 12-minute mark. Keep in mind that this is with the 8700K running at 5 GHz, one point three six volts inside the case, with all panels closed right away. The results show a rather large delta of over 20 degrees Celsius between the top result and the bottom result.

**The Impact of Fan Configuration**

I also tested different fan configurations to see their impact on cooling performance. When running fans as exhaust, I noticed that the GPU temperatures were higher than when running them as intake. In fact, swapping the cooler to the u9s gave me a massive improvement over the d9L configuration with the dual and fa9 fans. The configuration with the dual and fa9 fans gives us a fairly respectable temperature of 77 degrees Celsius.

**The Importance of Balanced Air Pressure**

Something that's worth noting is that I have set the fan curve to 100% fan speed after the CPU hits 50 degrees, so all fans were running at their max RPM. When both the GPU and CPU fans are running as exhaust, they end up fighting each other in an overly negative pressure system. However, when the CPU fans are flipped to run as intake, the air pressure inside the case becomes a lot more balanced. Air is getting taken in from the rear and then exhausted straight at the bottom.

**The Benefits of Running Fans as Intake**

Running the fans as intake gives me about a four-and-a-half-degree improvement over running them as exhaust. This is because when both the GPU and CPU fans are running as exhaust, they create an overly negative pressure system that can actually increase temperatures instead of reducing them. By flipping the CPU fans to run as intake, I'm able to take advantage of a more balanced air pressure system that allows for better cooling.

**Choosing the Right Fans**

So, which fans should I use? Well, I think I'll stick with the gray and have been on Redux fans, as although they do run about 4 or 5 degrees warmer than the NF e9 fans, they look better to me. The two NFA ninepins that I've got here are actually different shades, which was off-putting enough for me to keep them more neutral and slightly warmer and slower spinning.

**Conclusion**

In conclusion, using fans as rear intake rather than exhaust makes a significant difference in cooling performance. The Noctua NF-A9i PWM fans have proven to be an excellent choice for my End Case M1 build, providing excellent cooling without sacrificing aesthetics. I'm really happy with the cooling potential of the NF-A9i, and I think it's one of the best (if not the best) cooling solutions for this case.

**Future Plans**

As always, I'd love to hear your thoughts on this build and what you think about small builds in general. Maybe if you'd like to see more of them in the future, leave a comment below. And don't forget to subscribe to my channel for upcoming content from Computex in Taiwan, where I'll be showcasing some amazing new hardware and cooling solutions that are sure to impress.