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Our testing methods
Here are the specifications of our test system:

Processor Intel Core i7-6700K
Motherboard ASRock Z170 Extreme7+
Memory 16GB (2x8GB) G.Skill Trident Z DDR4-3000
Graphics card Sapphire Radeon R9 380X
Storage OCZ Vector 180 480GB SSD
WD Black 1TB HDD
Power supply Aerocool P7-850
CPU cooler Cooler Master MasterLiquid 120
OS Windows 10 Pro

Our thanks to Intel, ASRock, G.Skill, OCZ, Sapphire, WD, and Cooler Master for their contributions to our test system. Our thanks to Aerocool for providing the case and power supply we're testing today, as well.

Our case-testing cycle consists of the following phases:

  • 10 minutes idling at the Windows 10 desktop
  • 10 minutes running the Prime95 CPU torture test
  • 10 minutes running the Prime95 CPU torture test and the Unigine Heaven GPU torture test
  • 10 minutes idling at the Windows 10 desktop

Our testing methods are generally publicly available and reproducible. If you have questions about our methods, feel free to hit us up in the comments or join us in our forums.

Cooling performance
Here are the results of our cooling tests, plotted over time:

And here are some minimum and maximum temperatures from each testing phase:

My temperature tests show that the P7-C0 leaves the CPU running much warmer than the Cooler Master competition, but it’s worth noting that the MasterCase Pro 6 benefited from an air conditioner in my office that’s no longer running now thanks to seasonal temperature differences. It’s probably best not to worry too much about the Aerocool’s CPU temperatures, then, given that the other components inside seemed to fall within ranges similar to those of the Cooler Master case’s. Overall, the P7-C0 and the MasterCase Pro 6 seem about on par in cooling performance.

Noise levels
Cooling performance is just one part of the picture, of course. It’s no good if a case can’t keep components cool if it’s making a terrible racket. As I turned my test system on for the first time and the fans started spinning up, I did notice the fan noise was a little higher than I was expecting. The noise character of the P7-F12 Pro fans is smooth, but they just ended up sounding a bit louder than I figured they would be. Let’s see how loud the case gets in absolute terms.

My noise testing proves that my initial response to the fan noise wasn’t just in my head. In comparison to the MasterCase Pro 6, the P7-C0 is quite a bit louder than the competition. Keep in mind that even though the P7-C0 is somewhat louder than the MasterCase Pro 6, it also has six fans spinning inside compared to four in the MasterCase. In my opinion, the fan noise from the P7-C0 is bearable, but it's definitely possible to tell when it's running.