I noticed from the test program that I run on the HR-03 GTX on GTX 280, the VRM is shown to be especially hot, even hotter than when under stock cooling. Is that normal? Is there any thing I can do to solve this problem?
Answer
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In our lab tests we have discovered that when running Furmark to test for temperature, it tends to show results that would never be achieved in any circumstances (under normal running or overclocking). Running Furmark is highly risky therefore we do not recommend running this program for tests. This program pushes the VGA card to the point of maxing out, beyond limit and will burn out any cooler, stock or after market coolers after long period of testing. Even running games such as Far Cry 2 and GTA 4 extensively for long hours, the temperatures would never reach what Furmarkˇ¦s excruciating tests put out. Furthermore, it is crucial to have a 12cm fan installed running at 1600 RPM. This will ensure enough airflow to not only the HR-03 GTX heatsink body but also to the VRM heatsink plate. If you would like to run software to test for heatsinkˇ¦s temperature stability, we strongly recommend ATI Tools.
The MOSFET on the GTX 280 and GTX 260 seems to be different in numbers of module, but the HR-03 GTX only comes with one set of VRM heatsink. Can it be used for both?
Answer
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Even though the numbers of module are different on the GTX 280 and GTX 260, the fixture holes are the same on both types, so rest assured that the VRM heatsink can be installed on either one.
All previous versions of HR-03 had two methods of installation but HR-03 GTX has only one. Why is that?
Answer
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Due to the excess amount of heat dispersed from the VRM components, sufficient cooling airflow to it is a necessity. Type 1 method would put the fan in the back of the video card thus preventing the airflow to properly cool the VRM and overheats as a result. Therefore, only Type 2 installation method (entire heatsink and base on top of GPU) is recommended.
