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ZEROtherm Zen CPU Cooler FZ120 Review

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To properly test the ZEROtherm Zen CPU Cooler FZ120, I will need to record temperatures during both idle time (little, to no CPU usage), as well as during full load (100% CPU usage). I will be using SpeedFan 4.33 to gather the temperatures of the CPU cores. I will be using OCCT:PK to simulate the full load testing, and run it for thirty minutes. I will let the computer sit and cool down for thirty minutes before gathering the idle temperatures. I will be testing the processor at both stock speeds with stock voltage settings, as well as overclocked speeds of 3.6GHz, with the voltage increased to 1.46 volts. All of the temperatures are measured in degrees Celsius.  

Testing Setup:


Comparison Heatsinks:





As you can see in the graphs above, the ZEROtherm Zen CPU Cooler FZ120 did about average when compared to other coolers when it had its 120mm fan installed. When I decided to take the 120mm fan off of the Zen cooler, the temperatures shot up quite a bit.


  1. Introduction & Closer Look
  2. Closer Look (Continued)
  3. Specifications & Features
  4. Testing
  5. Conclusion
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