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With a temperature of 43C over ambient, the AK400’s thermal performance is on the lower end of results we’ve seen from mainstream air coolers – but in this scenario temperature really isn’t a concern. What is a concern is noise levels, and with a measurement of 39.6 dBA it does well here. Conclusion While maximum performance testing is nice, a lot of folks prefer to test coolers with noise levels equalized. This can result in some performance loss in the most power intensive workloads like rendering.
All of the coolers tested achieved good acoustic levels here, including DeepCool’s AK400 Digital which ran at a very low noise level with 38.9 dBA measured during testing. AMD Ryzen 7 7700X Thermal and Acoustic Results Maximum Cooling Performance Designed with precision, the high-performance DeepCool fan maximizes airflow and static pressure while keeping noise low due to a dynamic PWM range of 500 – 1850RPM. The FDB Some of y’all might notice that the graph starts at 35 instead of zero – this is because my sound meter cannot measure noise levels lower than 35 dBA. Since that is the noise floor of this meter’s recording capabilities, 35 dBA is the “zero” for our testing purposes. For those concerned that this might distort results – there’s no worry. If anything, the graphs above will minimize the differences in noise levels because dBA measurements are logarithmic. Today we will be covering the recently released DeepCool AK400 CPU Cooler. There is still a market for slim, single tower coolers believe it or not. For one they are usually very cheap and easy to install. Now the question is, will this keep my CPU temps under control? We will answer that later in this review. But for now, let’s focus on the AK400 and what it offers. I don’t doubt this cooler will be able to handle any CPU under everyday use. It has 4 heat pipes and exposed copper on the heatsink. I also know from a previous review of the AK620 that the fan and cooler design work very well. This type of cooler is perfect for budget builds and when you are short on real estate. Let’s continue through this review and see everything this AK400 is all about! Focus leads to professionalism. In Deepcool, we have dispensed with diversification solutions to fully commit ourselves to thermal dissipation and dedicates every single effort into R&D and manufacturing of the latest technologies in cooling, rather than diverse development.Attach the fans using the included clips and connect them to your motherboard’s PWM connection. Finally, connect the USB header to your motherboard to be sure the display is powered. Intel i7-13700K Thermal and Acoustic Results Maximum Cooling Performance DeepCool deploys its 120mm Fluid Dynamic Bearing fan for use on the AK400. The speed range on the 4-pin PWM control curve is 500-1850 RPM, which is pretty good for a budget cooler. Though it is – unsurprisingly – outdone by Arctic’s competing A35 series coolers. The AK400 Digital achieves its maximum cooling performance with total system noise levels of 41.4 dBA, the 2nd quietest result I’ve recorded on this system thus far. This is a moderate noise level comparable to that of a quiet hum. This level of noise shouldn’t bother anyone. Deepcool has been qualified to the ISO 9000 Quality Management System specifications. We implement strict quality controls through IQC, FAI, IPQC, and OQC systems to build a solid reputation of excellent quality. With a temperature of 44C over ambient, DeepCool’s thermal performance is on par with the best results we have from other air coolers. But really, thermal performance isn’t a concern at this lower power limit – noise levels are more important.
At 53C over ambient, The AK400 Digital is on par with the best results I’ve recorded from other air coolers and achieves this with low noise levels of 40.9 dBA – quieter than most of the other results shown here.
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and feel of the cooler. With four 6mm direct touch copper heat pipes, the DeepCool AK400 rapidly transfers heat away from the processor. The AK400 features a unique matrix fin Running Cinebench without power limits enforced is difficult to cool, and most coolers are unable to keep the CPU under it’s peak temperature in this scenario – so we’ll be looking at the maximum watts dissapated by the cooler in this situation.
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