Before publishing the upcoming Athlon heatsink comparison test,
here's a short overview of the testing methodology used for the
heatsink tests on AnandTech.  Each heatsink test consists of two
parts: A test under real-world conditions using an actual Athlon
CPU, and a test with a simulator, which is a artificial heat
source that simulates the heat emission of a CPU.  The test
under real-world conditions is used to judge about factors like
ease of installation, motherboard compatibility, and actual
overclocking results. For this test, an ASUS K7M Rev. 1.04
Athlon motherboard is being used, along with an Athlon-650 CPU.
The case used is an ASUS T-10A, the power supply a Sunny
Technologies CWT-300ATX (which is identical to the Antec
PP-303X, which showed the best stability in the AnandTech power
supply comparison). For the overclocking test, a FreeSpeed
Athlon overclocking card is being used however any Athlon
overclocking device will work. Temperature measurements are also
made during this test, just to verify