Antec Kuhler H2O 620 Liquid CPU Cooler Review

Testing
For testing we will be doing our normal standards for testing. For idle testing we let the computer sit idle at stock and then over clocked speeds. And then for load testing we use Prime95 64bit to put the processor under 100% load for a hour. We tested our i5-750 at stock speeds and then at a 3.8 GHz overclock. We also tested a single fan, dual fans and switched between the fans blowing in and out. Here are our results.

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8 comments
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  2. Just a heads up all – if you get a KUHLER H2O 620 and want to set up two fans for push-pull, you need to ask for 6-32 x 1-¼ inch screws. You should be able to find these at hardware or hobby stores.

  3. Just a heads up all – if you get a KUHLER H2O 620 and want to set up two fans for push-pull, you need to ask for 6-32 x 1-¼ inch screws. You should be able to find these at hardware or hobby stores.

  4. Just got one, results for stock speed Phenom II X4 965 are impressive. 3.4 X4 965 BB on ASUS M4A785-M MB. Room temp 22c, Idle 27c, Prime 95 4 hours 39c. I will test overclocking shortly.
    The kuhler h20 620 replaced a Zalman (sorry don’t know the model #) all copper, w/120mm fan.
    With the Zalman, PC would Idle at 34c and 57c at max load on stock 3.4 Ghz.. The Kuhler is very quiet and the Zalman sounded like a vacuum cleaner when the fan was adjust past 1800 RPMs.
    I need to test it some more, but so far ,so ggod.

  5. I don’t care for a review, that adds hardware not included with the item.
    Therefore the review skewed and making it non-withstanding,
    I expected better, I want a review to tell me  “out of the box” why not go with a differrent thermal paste, other fan configurations etc etc. bogus review

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