TweakTown uses a different method for testing CPU heatsinks which allows for an even playing field across all product tests. We feel that by using the same ambient temperature and strict lab-like testing procedures we are able to accurately compare one product to another. More information on our testing procedure can be found in the T.E.C.C. article here.
The temperature results didn't bode so well for the Transformer 4. In order to keep the cooler silent, I feel the Evercool really dropped the CFM on these fans to really low levels. Looking here, at the very bottom is a fan that closely corresponds to the EC12025SL12EA, where the one listed ends with no "A". The one listed runs at 53.4 CFM but also runs at 1400 RPM. I'm just taking a stab in the dark and guesstimating that these fans run in the 40-45 CFM range at 1000 RPM. In my opinion this is too low to sufficiently do a really good job at cooling.
Sound levels were held at a good level with the low RPM choice that Evercool made with the Transformer 4. While not setting any records at these levels, they are certainly respectable. Again, I would have taken a bit more noise in order to gain better performance.
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