Forward Onto A New Methodology The intent of our CPU cooler testing methodology is to recreate real world yet repeatable testing conditions in order to comparatively benchmark competing heatsinks, AIOs and other cooling devices. We have decided to move well beyond the “slap a heatsink on a test bench and log results”. Testing Environment Whereas we previously tested on an open, horizontally oriented test bench which relied on ambient air temperatures to create a stable testing environment, we have decided to move towards a different approach. After consulting with a mechanical engineer* who specializes in heat transfer as well as several OEM heatsink manufacturers we have validated the open system with the motherboard in a horizontal position can create artificially inflated results in certain situations. This is due to the following factors: The cooler placed vertically can allow it to wick away heat from the processor in a more efficient manner versus it being placed in ...