Review: antec khüler h2o 620

In April we already gave the first that Antec was introduced in liquid cooling kits with its innovative Antec Khüler H2O 620. Its high-performance design will cool our processor and its uncorrugated tubes will give flexibility in installation.

Product loaned by Antec:

ANTEC KHÜLER 620 FEATURES
Radiator	120mm x 151mm x 27mm
Fan	One unit: 120mm x 120mm x 25mm / 1450-1700 RPM PWM
Block height	27 mm
Tube length	330 mm
Cooling liquid	Safe, environmentally friendly and anti-corrosive
Net weight	700gr
CPU compatibility	Intel LGA 775/1555/1556/1366 AMD AM2 / AM3 / AM2 + / AM3 +
MTBF	50000 hours
Warranty	3 years

Antec Khüler H20 620 is the first Liquid Cooling Kit equipped with “Liquid Temperature Fan Control” technology that controls the pump and fans automatically, without the need for Rehobus. In this way, the fans run at higher revolutions if the liquid heats up. Antec has not forgotten that a good refrigerator needs a large fan and includes a 120mm fan that works up to 1700 RPM

Another of its improvements is the copper base of the CPU block and its uncorrugated tubes. This design allows the liquid to pass efficiently without the need for maintenance.

The box incorporates Antec's corporate colors (Black and Yellow):

Once we opened the box, we found a light layer of foam rubber. When we remove it we find the Antec 620, fan, accessories and manual.

Intel installation kit (blue), Amd (green) and hardware.

120mm radiator detail:

We have measured the thickness of the radiator with the meter and it has given us 2.7 cm:

In the following two images we can see that the quality of the tube is excellent.

The block has a plastic protection to avoid dust and preserve the properties of the pre-applied thermal paste.

The block finishes are excellent:

We have to connect the female connector to the motherboard, to supply power to the pump. And the other connector (male) we have to connect to the Antec fan. He Antec Khüler 620 will take care of the rest.´

Back and bottom of Antec 120mm fan:

We have installed the RL in socket 1555. The first thing to do is install the back:

Support for Intel socket, we install the blue connectors:

It is time to fit the liquid cooling block; we turn clockwise and the block will fit. We tighten the screws and the result should be this:

TEST BENCH:
Box:	Silverstone FT-02 Red Edition
Source feed:	Antec HCG620W
Base plate	Asus P8P67 ws Revolution
Processor:	Intel i7 2600k @ 4.8ghz ~ 1.34-1.36v
Graphic card:	Gigabyte GTX 560 Ti SOC
RAM:	G.Skills Ripjaws X Cl9
HDD:	Samsung HD103SJ 1TB

To test the actual performance of the liquid cooling kit we are going to stress the CPU with full memory (Linx) and prime number (Prime95) floating point calculation programs. Both programs are well known in the overclocking sector and serve to detect failures when the processor works 100% for long hours.

How are we going to measure the processor temperature?

We will use the internal sensors of the processor. For this test on Intel processors we will use the “Core Temp” application in its version: 0.99.8. It is not the most reliable test, but it will be our reference in all our analyzes. The test bench will be around 29º ambient temperature.

In our test bench we will use the following 12v fans:

1 x Antec PWM

2 x Phobya GSilent Red 1500 RPM

2 x Noctua NF-P12 1300 RPM

2 x Nidec 1850 RPM

These are the results obtained:

We can compare it with the results obtained with the Corsair H60:

WE RECOMMEND ANTEC HCG1000 Extreme Review in Spanish (Complete Analysis)

The Antec Khüler H2O 620 is a perfect kit to get started in Liquid refrigeration. Its intelligent technology, " Liquid Temperature Fan Control ", regulates the fans according to the working temperature. Its elastic tube is the best we have seen in these compact designs. The installation for socket Intel (blue) and Amd (green) is perfectly explained in the manual, and in a few minutes we have it working.

The Antec fan has great performance, but is somewhat noisy at high revs (1700 RPM). Surely you are wondering: And the bomb is heard?

Yes, the pump noise is somewhat less than the Corsair H50 / H70 but it is less pleasant than that of the Corsair H60. However, if we have closed the side of our box, we should not appreciate the noise of the pump. Remember that only Antec automatically offers silence at low revs.

As we have seen in our tests the Corsair H60 narrowly beats the Antec Khuler 620. But we were surprised that when we added two fans (Phobya, Noctua and Scythe Servo) we did not manage to decrease many degrees.

The performance is very similar to that of a high-end heatsink but somewhat cheaper. Among its virtues we find those of eliminating 700gr or 1 kg on our CPU, reducing the hot air inside our box and we gain in aesthetics.

If you value the life of your processor and want to start with liquid cooling, the Antec Khüler H20 is the life insurance for your processor. In addition to offering you silence, efficiency and minimum security for three years.

ADVANTAGE		DISADVANTAGES
+ NICE DESIGN AND GOOD PERFORMANCE	- SLIGHT NOISE IN THE ENGINE
+ THERMAL PASTE AND QUALITY FAN
+ AUTOMATICALLY REGULATES THE 3 PIN PUMP AND FAN.
+ EASY INSTALLATION AND QUIET AT LOW RPM.
+ THREE YEARS WARRANTY

The Professional Review team awarded him the silver medal: