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The comparator heatsink was the Noctua NH-D15. Each Heatsink was mounted with a 6 mm blob of NT-H1 TIM. Each time a heatsink was mounted, the TIM was allowed a day to fully spread before the temperature tests were run.
We utilized an Intel Core i7-10700K for this test and used the factory CPU settings of 3.8GHz at 100% load to put the cooler to the test. The second and third tests were performed with an OC stage of 4.7GHz and 5.0GHz, respectively. We wanted to see how well the Noctua NH-D15S performed in standard and high-end OC modes. The box for the Noctua NA-HC4 chromax.white maintains the same aesthetic as other Noctua product boxes and displays the compatible heatsink model numbers on the front. Upon removing the D15S heatsink from its box, I was amazed at its sheer bulk. This is a serious heatsink and it oozes quality. This is a heatsink you buy once and will re-use again every time you upgrade your system. The customization Noctua now provides with their chromax line further strengthens their already strong lineup of industry leading fans and heatsinks. Noctua NA-HC4 chromax.white Review Looking at our results, we see that three fans cool no better than two fans, with substantially more noise. Comparing the pair of 1200 rpm A15’s to a single 1500 rpm A15 shows that the pair of 1200 rpm A15’s cool this heatsink about the same as the single 1500 rpm A15 cools it, but more quietly (Not that the NF-A125 1500 was all that loud).One aspect of Noctua’s heatsinks has not changed: the NH-D15S like the –D15, the –C14S, the -D14 and others, all use the SecuFirm system. If you mount one heatsink, you can swap it for another Noctua heatsink in minutes. They make a reviewer’s job much easier. NH-D15S Pros The Noctua NH-D15S is a fantastic value. Yes, it’s a bit more expensive but it’s well worth the investment. Not only does it rival AIOs in performance, it does so while maintaining a much lower noise profile. Plus, this heatsink can be carried over every time you upgrade or rebuild your computer. Lastly, Noctua brings a level of quality to the table that few manufacturers can match. The NH-D15S is no exception and its 6-year warranty is among the highest in the industry. Finally, slide a cover over each fixture and the magnets do the rest. It’s that easy! You don’t have to detach the fan and can even do this while the heatsink is installed on the motherboard. Amazing!
Finally, a second box under the fan tray has the additional anti-vibration pads necessary for installation in every color. There are also four mounting screws if the fan is to be installed in a case. A low-noise adapter is also included. The picture on the right shows a standard NH-D15. See how close it stands to the network card in the first slot. In the picture on the right, we can see how the NH-D15S stands a centimeter to the left. In essence, I tried to do all the things you might find logical to try. I used two different mounts to compare the cooling. I mounted the NH-D15S a third time with the fans blowing up – I had recently tested the NH-C14S heatsink and found a 5 degree difference in cooling, depending on how I mounted it. So I tried this vertical mount to see if it made a difference in how well the D15S cooled. The results are presented in different charts to keep the different mounts separate. Inside, we find squishable foam – my favorite kind. The foam has some give to it and doesn’t break like Styrofoam. The foam surrounds fully recyclable boxes. But you are not going to recycle perfectly good boxes that were custom built for this heatsink and its accessories. The whole thing goes together too nicely. You will keep your box.After seeing the chromax heatsink cover in person, I can’t imagine building with it. While most aesthetic add-ons are a waste of money, the NA-HC4 can be seen and enjoyed every day if you are one of the many with a case that has a tempered glass side panel. The sheer quality of the covers and the stark change they have on the looks of your PC is well worth the price. Performance Now attach the mounting bars and install with the four NM-ITS1 thumbscrews, making sure the connection is tight and firm (not too strong). Those two threaded rods were for the tensioning screws. Noctua provides an L-shaped screwdriver for tightening the tension bolts. However, you would do well to get a 200mm long-shaft #2 Phillips screwdriver. Very helpful for this and for tightening motherboard screw deep in a case.
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