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Interesting. I'll point Tony  to your post and see what he thinks.




It doesn't seem to. I haven't tested it extensively though.




It does, once the fan is running it will increase RPMs in response to temperature. The controller is hardwired to never turn on when below 150W load though.


I suspect this was done to make absolutely sure they didn't have the same problem as the SX500-LG and SX600-G, where the fan never really runs in idle mode. But maybe they took things a little too far the other way.