Hi Matthias, Jean is right. I mixed up the PWM and RPM numbers there. These things would be useful: > Matthias, can you please provide a dump of your chip (isadump 0x295 > 0x296) at init time, before loading the w83627ehf driver? > > I'd try forcing the driver to use all 5 fan inputs. Just run "isaset > 0x295 0x296 0x47 0x05 0x05" before loading the w83627ehf driver, and > see what happens. It's supposed to be the default, but... > > Maybe our heuristics to detect the use of the pins are not correct, > although they are simple enough and look OK to me. Or maybe the Asus > BIOS isn't configuring the chip properly (that'd be odd as they need > proper setup for displaying the values themselves.) Matthias wrote: > Windows users report that they can indeed controll all 5 fans with a > tool called "SpeedFan" or something like that. I will investigate =) SpeedFan is indeed a useful tool. The author develops hardware monitoring drivers for quite a lot of chips out there. I have used SpeedFan on my machine, and the results match what I get from the w83627ehf driver. But your motherboard is doing something new, in order to drive 5 fans. David