On Mon, Jul 23, 2012 at 10:28:14AM +0000, Adrian Bocaniciu wrote: > > Intel Atom processors, unlike more expensive Intel processors, do not > support frequency scaling. > > See for example the specifications for Atom D525 at: > http://ark.intel.com/products/49490/ > > where it is stated that Enhanced Intel SpeedStep Technology is not > supported. The same is written in all Atom datasheets. > > The only way to reduce the power consumption of Atom is to ensure that > the processor is halted when it has nothing to do, i.e. in the idle > loop, which I suppose that DragonFlyBSD does, or to use the ACPI C3 > sleep state whenever you can tolerate the latency required for waking up > the processor. > > I also have a couple of D525MW boards, but I have not tested > DragonFlyBSD on them, and they are much less warm, but my Mini-ITX cases > (Lian Li & Antec) have case coolers that ensure an adequate air flow > inside the cases even if both the motherboards and the power supplies > are fanless.
Thanks for the details. I did not look at that point as I expected at least frequency scaling which is supported by the Atom on the Fit-PC2 I also use. I think I will try to get the temperature down by using a fan. But then it is no longer a fanless system that I wanted to have running all the time. And a system in a mini-ITX case with a temperature of 55 degrees is not what I want to have running all the time. Thanks all for the help. I guess I will have to think about a replacement to get a cooler fanless system. Regards, Sven