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- by David_W @Mar 15, 2011
The Antec KÜHLER H2O 620 delivers high-performance liquid cooling for your CPU in a quick, easy-to-install package. Unlike traditional liquid cooling systems, this self-contained unit comes prefilled and requires no maintenance. The voltage-controlled 120 mm fan and 3rd generation copper coldplate ensure efficient cooling, while the estimated 50,000 hour pump lifetime means this cooler is even likely to outlast the system it cools. Lastly, easy-bend flexible tubing allows the KÜHLER H2O 620 to be installed in nearly any orientation. Take your PC's Quiet Computing™ to the next level with liquid cooling performance at a price that rivals aftermarket air coolers.
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Overall, the cooler does it's job, a bit hard to install, and still has a tiny bit of noise, but what you see is what you get, This product is worth it's price.
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I bought this cooler on sale for $35 so I could do some decent overclocking on my new i5-3570k. I was able to bump the speed up to 4.33GHz with the temperatures holding steady at 85 deg C after a few hours of Prime 95. My only gripe is that the mounting hardware is very cheaply made and I managed to strip the threads in the little aluminium inserts, so take my advice and FINGER-TIGHTEN ONLY!!! I guess I'm used to the good ol' days where heatsinks were held in place with so much force I'd slip when installing them and slice myself on the fins, but with this one you have to be very gentle. I can't complain too much though, because for $35 it performs exceptionally well while taking up a minimal amount of space. Overall, the Kuhler 620 is a great alternative to those giant obelisk air-cooling offerings, provided you get it on sale because frankly I don't see it being worth more than $50.
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Bought this to quiet a noisy gaming rig. Installing to an Intel 8400 was fiddly, but evidently worked. It runs very quietly. In fact, it's so quiet that when the radiator loads up with dust, you may not hear the change, so inspect and clean regularly.
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I bought this cooler to deal with my hot summer days. Last cooler I had (old build) overheated and flew right off the motherboard. Decided this time to try a little water cooling. Well it's not a full on water rig but it does work quite well cooling my system. 26C idle, and around 30C under load. This is winter and my room temp is around 20C.
"the Antec KÜHLER H2O 620 performs very close to the Corsair H50 unit. Coming in at 2.2% better temps than the H50, the margin is small enough to call it a tie. We see the Corsair H70 doing 2 degress better however.[...]getting the same performance without all the noise is simply a win-win."
"This unit is able to slightly outperform the direct competition while keeping a very close second to a version that includes two fans and a thicker radiator.[...]Antec has more bang for the buck than does any of its competition."
"the performance came very close to the Corsair H70 unit with its big radiator and dual fans. The 620 also went about its cooling duties in a very quiet manner, something that can't be said of the other all-in-one liquid cooling solutions I've tested."
a 3dGameMan video review: "It's easy to install, is compact, quiet, performs very well and is affordable. If you're intimated by custom water cooling, this would be a perfect solution."
Frankly its performance is almost unbelievably good: its stock-fan performance is 7.2 degrees cooler than Corsair H50, whose radiator appears to be identical. With the high-speed Delta fan on both coolers, the performance gap widens to 9.4 degrees.
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