Deep Cool Captain 240 EX AIO Cooler Review: Page 6 of 7

Posted by Paul Malfy on Thursday, October 27, 2016 - 8:00am

Overclocking & Testing

Test System

  • Cooler Master MasterCase 3 MATX Chassis
  • I5 4690k @ 4.4 GHz
  • Gigabyte Z97MX Gaming 5 MATX Motherboard
  • 16gb Corsair Vengeance Pro 1866 MHz
  • EVGA GTX 980 Classified
  • Corsair RM850 Power Supply

Software

  • Prime95
  • CPUZ
  • Core Temp

Prime95

Deep Cool Captain 240 EX AIO Cooler

Prime95 is an application dedicated to finding new Mersenne prime numbers.  Prime95 is very popular in both the PC enthusiasts and overclocking communities as a stability testing utility. It includes different modes designed specifically for testing PC subsystems for errors to help ensure the correct operation of Prime95 on that system. The stress-test feature in Prime95 can be configured to better test various components of the computer by changing the fast fourier transform(FFT) size. In this stress test, there are three pre-sets available. They are small FFTs, in-place FTTs and Blend. Small and In-place modes mainly test the CPU. We will be focusing on Blend mode since it tests everything, including the memory.

Deep Cool Captain 240 EX AIO Cooler

My i5 4690k was overclocked to 4.4 Ghz for all testing.

The testing methods for all coolers is always the same to eliminate as many variables as possible. The ambient temperature in the room was a very cool 17°c. I tested the CPU on both stock speeds as well as overclocked. I also record both idle temperatures and load temperatures 3 times each, with 20 minutes in between each test. The load temperature was recorded after Prime95 ran for 20 minutes on blended mode which stresses the CPU to 100% load. The stock speed of my 4690k is 3.5 GHz. This processor is an excellent overclocker and could hit 4.4 GHz and pass all stress tests. The stock temperatures were excellent overall. The CPU, at its stock speed, idled at a max temperature of only 24°c on its hottest core. During the stress test, the CPU only hit 50°c on the hottest core. We all know that when overclocked, your CPU draws more power and produces more heat. The 4690k overclocked to 4.4 idled at 27°c, only 3°c above the stock temperature. Once we I ran prime95, it was a different story. However, the Captain 240 EX still did much better than I had expected. The CPU hit 80°c on the hottest core during this stress test. With the amount of stress that Prime95 puts on your CPU, this wasn’t a bad result at all. The cooler ran very quiet, even with the fans running at max. I could hardly even hear the pump even under full load. Over all, the Captain 240 EX did an excellent job with overclocking.

Deep Cool Captain 240 EX AIO Cooler

The temperatures at both stock and overclocked with great results in my opinion for a 240 mm AIO cooler.

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