|Corsair Hydro H70 Liquid CPU Cooler|
|Reviews - Featured Reviews: Cooling|
|Written by David Ramsey|
|Tuesday, 08 February 2011|
Page 3 of 6
Corsair CWCH70 Detailed Features
The H70's pump is much smaller than the pump used in the H50, and has another welcome feature: swivel attachments for the hoses, which makes arranging things inside your case somewhat easier. This image shows the pump unit with its plastic protective cap, which you'd remove before installing it.
Even with the swivel fittings, the pump and radiator assembly is unwieldy. The hoses are short and much stiffer than you'd expect. The hoses, pump, and radiator are all permanently attached to each other.
The base of the H70's pump comes with pre-applied thermal compound, but our testing regimen requires that we use the same thermal compound for all heat sinks. Removing the included compound reveals a base that's flat, with a pronounced texture. This finish is common to all the Asetek-derived water cooling systems I've seem from various manufacturers, and the H70 is a Corsair-labeled version of Asetek's 570LC liquid cooling system.
The thicker radiator, with both fans installed, will take up quite a bit of room in your case. The width of the entire assembly is exactly 3 7/8", and the fans are installed in a "push-pull" arrangement. Corsair recommends that they be oriented so that cool air from outside the case is pulled through the radiator into the case. Corsair H50 owners have added dual fans to their single-fan systems since the the day H50 was introduced, and Corsair even has a configuration guide on this very subject.
Reading the H70's installation instructions will pay off. I didn't, and installed the radiator/fan assembly first. As this picture of the mounted assembly shows, doing so will leave you unable to reach the rearmost two screws that secure the pump retaining ring. Corsair rates the original H50's fan at "about 50CFM"; assuming the two H70 fans are similar to the H50 fan, that means that if you follow Corsair's instructions, you'll have up to 100CFM of hot hair being blown intoyour rig's case. If you have one or two high-end video cards you might want to experiment with orienting the fans to blow air out of the case.
Installing the unit is a little clumsy: first, you must support the radiator/fan assembly while installing the pump, and the relatively short hoses mean that you can't hang it outside the case. And once you have the pump secured, securing the radiator/fan assembly is even trickier: while the inside fan can be pre-mounted to the radiator, the outside fan cannot. You must thread a long screw through the back of your case, through the rear fan, and into a screw hole on the radiator. This is hard to do since you must precisely position the large and relatively heavy assembly while the "springiness" of the water hoses is working against you. A second person helping to support the radiator/fan assembly can make the whole process much easier. And with the cooler is installed, it's time to start the testing.