Hello David, thanks for your reply. On Tue, September 5, 2006 16:55, David Hubbard wrote: > Hi Matthias, > > Nice to get some feedback on w83627ehf. The datasheet documents only 4 > RPM sensors, but 5 pwm outputs. That's if your motherboard uses the > standard w83627ehf without any additional electronics. > > Can you disconnect one fan at a time while in the BIOS readings and > verify that each is independent of all other fans? I wonder if the > BIOS is actually getting 5 independent RPM readings. I will do so when I get home. However, I am pretty sure that these 5 readings are independent of each other. > Also, is there some way (a different OS, or in the BIOS) that you can > actually control each of the fans independently? Windows users report that they can indeed controll all 5 fans with a tool called "SpeedFan" or something like that. I will investigate =) > I'm looking for more > info on your motherboard, but there is the possibility that the two > CHA fans and the two PWR fans are actually hard-wired together. The > Asus page > (http://www.asus.com/products4.aspx?modelmenu=1&model=1198&l1=3&l2=11&l3=248) > says you have the Intel 975X and Intel ICH7R chipsets, but that's all > the time I have right now to google... If you discover on google that > there are similar questions on forums, etc., that might provide a > clue. Otherwise, look at the board and see if there are any additional > chips - I have an Asus motherboard and the w83627ehf chip is actually > not hard to find. On mine, it's in the corner next to the ram slots. > I will have a look. > Do the fans have three or four pins? (Just curious) The CPU fan has 4 pins, the other 4 only have 3. > Can you provide a listing of the sysfs files exported by the driver on > your system? The w83627ehf pins for fans 4 and 5 can be programmed as > general purpose I/O, and the driver detects whether you have 3, 4, or > 5 fan pins configured. (The setting is read, but not changed.) So...do > you have pwm4 and pwm5 in your sysfs? I will send you the complete listing when I get home but I can already say that there is pwm1 to pwm4, no pwm5 Thanks for your time -- Matthias Hentges
