2016-09-17, 10:44
(2016-09-17, 08:36)bbsc Wrote: I like the present situation much more, of course. But if the temperature rises for some reason for a short time above 67 Celsius and then falls back, the FAN will remain at MEDIUM speed.
55 degrees seems to be too low for Chromebox in active state.
Thank you.
the problem with doing as you suggested, is that if the OFF threshold for the medium was raised to 62, there's a fairly high likelihood of the temp quickly coming back up to 67, which would end up causing a constant oscillation between low and medium speeds. In general the cooling strategy employed is to try not only and bring the temp down into the LOW speed region, but to run the fan long enough at the higher setting to ensure that the temp doesn't immediately rise back up.
These defaults are what I feel is a good compromise to cover all four Haswell Chromeboxes with a single firmware file. If they don't work optimally for someone (which is inevitable), then the OS-level mechanisms for adjustment are likely the best option (short of building your own firmware). And if they aren't working optimally for a large enough group of users, then I'm happy to reevaluate the defaults
