Corsair Hydro H70 CPU Cooler Review

Author: AkG
Date: August 15, 2010
Product Name: Corsair Hydro H70 CPU Cooler
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A Closer Look at the Corsair H70 pg.2

The tubing is the same ¼” ID PVC or coated neoprene affair as used on previous Corsair water cooling units that has been heat-sealed onto the rad and water block barbs. This is par for the course as very few companies bother with pinch clamps as this is a cheaper, more secure and easier method of doing things. One thing worth noting is the length of tubing which connects the water block and the radiator together is noticeably shorter than on the H50. The H50 had about 11 inches worth of tubing, whereas the H70 is a couple inches shorter at about 9 inches.

The water block / pump combination unit is quite interesting since we are used to seeing the usual high-walled affair on other ASETEK-OEMed units. Corsair classified this block as “low profile” and we think that is being too conservative as it is downright small in comparison to the one on the H50. When you place them both together the difference really is night and day.

In addition, the H70 uses a copper-based block with pre-applied thermal compound.

One nice feature of the H70s block -besides its short stature- is the tubing connectors on the water block. Much like the CoolIT ECO we recently reviewed it uses 90° connectors which can swivel. This is a great feature which will reduce the pressure on the connectors and should (if past history is any indication) make installation a heck of a lot easier.

Sadly the base of the water block also shares the H50’s lack luster polishing and finishing job. The best we can say about this matte copper base is that it is about average but certainly nothing special. It is however almost perfectly flat.

The fans which accompany this unit are also noteworthy. Of course, the number of fans has doubled from the H50’s one to the H70’s stock dual fan configuration; but the speed of these fans has also increased to 2000rpm (our samples ran at about 2023 rpm). This further reinforces our earlier surmise that the H70’s thick radiator needs high end fans to get the job done.

Corsair also includes a two to one adapter so that both 3 pin fans can be connected to your motherboard’s “CPU” fan header. They also included a pair of voltage based adapters which reduce fan speed to a maximum of approximately 1600rpm (or 1623 in our case, which is basically the same speed our H50’s “1700” rpm fan ran at).

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