Hi Alex, We are having some trouble with the as99127f again, and I thought maybe you could help us on this point. The register we are fighting with this time is 0x5B. In our current driver implementation, this register is supposed to be PWM1 (fan speed control) as for the w83781d, but I did some tests on my motherboard (Asus A7V133-C, AS99127F) yesterday and it turned out that this register behaves like a temperature sensor mode selector (like the it87 has). What's your opinion about this register? Where would PWM1 be if it's not there? Oh, by the way, I could see on your webpage that you differenciate two revisions of the AS99127F. Which register do you use for that? What are the differencies between these two revisions? Thanks! -- Jean Delvare http://www.ensicaen.ismra.fr/~delvare/