©2010 Corsair Memory, Inc. All Rights Reserved. Document Number: 49-00087
FEATURES and TESTING GUIDE: October 13, 2010
Page 5 of 8
CWCH70 - Corsair Hydro Series H70
The conventional method is to install the fans to exhaust air from the chassis. This method of
installation requires no re-adjustment of the chassis cooling setup, but results in warmer air being
used to cool the H70’s radiator unit. In chassis with poorer airflow this will result in sub-optimal
cooling performance, compared to Corsair’s recommended approach.
Performance Testing
To assess the performance of the Hydro Series H70 compared to other CPU coolers, we need to
perform a CPU stress test in order generate the maximum amount of heat, and then accurately
measure the CPU temperature. The following information is our suggestion of how to perform this
testing process.
For the most consistent results, it’s advisable to test the Hydro Series H70, and any other coolers
used for comparisons, in an air-conditioned / temperature-controlled environment. Failing this,
testing all the coolers on the same day, to ensure the environmental conditions are the same, will
result in the most accurate results.
In situations where the ambient temperature is not fully controlled, we suggest quoting “Delta T”
values, rather than absolute temperatures. The Delta T is the difference between the average CPU
temperature and the ambient temperature. Ambient temperature should be measured with a
separate thermometer placed in a fixed location.
It is also important to test the Hydro Series H70 and other CPU coolers inside a chassis so as to
provide a “real world” assessment of their performance.
CPU stress testing software
Prime 95
Prime95 stresses the CPU by running Fast Fourier Transformations (FFTs), causing the CPU to
operate at its maximum power. Both versions below are multi-threaded, to guarantee all
cores/threads of the CPU are tested.
64-bit and 32-bit versions of Prime95, for Windows, Linux and MacOS platforms, can be
downloaded from here:
http://www.mersenne.org/freesoft/
Temperature-logging software
Everest Ultimate
Everest Ultimate includes the facility to log the temperatures of each CPU core in your processor.
A free trial version is available at
http://www.lavalys.com/
