Hi, First off, I'd like to say thanks to you for writing such a great program. Works great on my i810 chipset on the other computer. This computer is a different story though.... I'm hoping for a couple hints that will help me get my darned fans to turn off (turn slower)! I have used the windows program "speedfan" which detects and controls my fan1 (CPU) properly. From Speed Fan: ITE 8712F super IO. ISA bus $0290 linked ISA bus @ $0D00 ... IT8712F/IT8705F at $D00 I have an Asus A7N8x-VM/400 motherboard that lm_sensors "sensors-detect" correctly detects has a IT8712F chip on the ISA bus. link to motherboard: http://www.asus.com/prog/spec.asp?m=A7N8X-VM/400&langs=01 SUMMARY OF PROBLEM 1. I patched 2.9.0.1 and compiled i2c for my 2.4.29 kernel (stock slackware 10.1) 2. I tried to compile lm_sensors-2.9.0 but got errors (even after doing ldconfig -v) *weird* 3. I downloaded the most recent "daily" cvs snapshot which compiled and it compiled and installed properly. 4. "sensors-detect" correctly identified the IT87 chip. 5. lm_sensors2/prog/pwm/pwmconfig cant seem to stop the fan1? it says: ------------------------------------------------------------ Warning!!! This program will stop your fans, one at a time, for approximately 5 seconds each!!! This may cause your processor temperature to rise!!! If you do not want to do this hit control-C now!!! Hit return to continue: Testing pwm control it8712-isa-0d00/pwm1 ... it8712-isa-0d00/fan1 ... speed was 4166 now 4166 no correlation No correlations were detected. There is either no fan connected to the output of it8712-isa-0d00/pwm1, or the connected fan has no rpm-signal connected to one of the tested fan sensors. (Note: not all motherboards have the pwm outputs connected to the fan connectors, check out the hardware database on http://www.almico.com/forumindex.php) ----------------------------------------------------- ARRRGGG so I find in /proc/sys/dev/sensors/it8712-isa-0d00# The "control" files pwm1 and echo 0> pwm1 Still no joy...the fan refuses to stop. Any guesses? "sensors" gives in part (after i monkeyed with the /etc/sensors.conf file ...the CPU and Motherboard chipset temps seemed inverted.) ----------------------------------------------------------- it8712-isa-0d00 Adapter: ISA adapter VCore 1: +1.63 V (min = +1.42 V, max = +1.57 V) ALARM VCore 2: +1.57 V (min = +2.40 V, max = +2.61 V) ALARM +3.3V: +6.62 V (min = +3.14 V, max = +3.46 V) ALARM +5V: +4.94 V (min = +4.74 V, max = +5.24 V) +12V: +11.84 V (min = +11.40 V, max = +12.60 V) -12V: -7.88 V (min = -12.63 V, max = -11.41 V) ALARM -5V: -7.32 V (min = -5.24 V, max = -4.76 V) ALARM Stdby: +5.06 V (min = +4.74 V, max = +5.24 V) VBat: +4.08 V fan1: 4166 RPM (min = 0 RPM, div = 2) fan2: 0 RPM (min = 0 RPM, div = 128) fan3: 0 RPM (min = 0 RPM, div = 2) CPU Temp: +43?C (low = +15?C, high = +40?C) sensor = diode M/B Temp: +37?C (low = +15?C, high = +45?C) sensor = thermistor Temp3: -1?C (low = +15?C, high = +45?C) sensor = disabled vid: +1.65 V --------------------------------------------------------- also you may want to know what modules are running (I also checked the kernel config file and all i2c stuff is built as modules). lsmod gives: -------------------------------------------------------- Module Size Used by Not tainted i2c-dev 3424 0 i2c-isa 784 0 (unused) i2c-nforce2 3400 0 it87 10164 1 eeprom 3564 0 i2c-proc 6148 1 [it87 eeprom] i2c-core 14852 0 [i2c-dev i2c-isa i2c-nforce2 it87 eeprom i2c-proc] snd-pcm-oss 36704 0 (unused) snd-mixer-oss 12152 0 [snd-pcm-oss] usb-ohci 19368 0 (unused) ehci-hcd 17516 0 (unused) usbcore 58860 1 [usb-ohci ehci-hcd] forcedeth 9868 1 snd-intel8x0 18080 0 snd-ac97-codec 52472 0 [snd-intel8x0] snd-pcm 54504 0 [snd-pcm-oss snd-intel8x0 snd-ac97-codec] snd-timer 13412 0 [snd-pcm] snd 31268 0 [snd-pcm-oss snd-mixer-oss snd-intel8x0 snd-ac97-codec snd-pcm snd-timer] soundcore 3396 4 [snd] snd-page-alloc 4712 0 [snd-mixer-oss snd-intel8x0 snd-pcm snd-timer snd] ide-scsi 9392 0 agpgart 45092 0 (unused) -------------------------------------------------------- At this point, all I can say is I'll try a 2.6 kernel? Somehow I doubt that will fix the problem though. I could try to fix it myself but have 0 experience with hardware programming (though I am familiar with C ) Any words of wisdom or tips on how I can get the CPU fan to slow down in linux ..again it is possible because it does work with the Windoze prog Speed an. Thanks a bunch! Luke PS The pertinant part of /etc/sensors.conf follows: ------------------------------------------------------------ chip "it87-*" "it8712-*" # The values below have been tested on Asus CUSI, CUM motherboards. # Voltage monitors as advised in the It8705 data sheet label in0 "VCore 1" label in1 "VCore 2" label in2 "+3.3V" label in3 "+5V" label in4 "+12V" label in5 "-12V" label in6 "-5V" label in7 "Stdby" label in8 "VBat" # vid is not monitored by IT8705F # comment out if you have IT8712 # ignore vid # Incubus Saturnus reports that the IT87 chip on Asus A7V8X-X seems # to report the VCORE voltage approximately 0.05V higher than the board's # BIOS does. Although it doesn't make much sense physically, uncommenting # the next line should bring the readings in line with the BIOS' ones in # this case. # compute in0 -0.05+@ , @+0.05 # If 3.3V reads 2X too high (Soyo Dragon and Asus A7V8X-X, for example), # comment out following line. compute in2 2*@ , @/2 # compute in3 ((6.8/10)+1)*@ , @/((6.8/10)+1) compute in4 ((30/10) +1)*@ , @/((30/10) +1) # For this family of chips the negative voltage equation is different from # the lm78. The chip uses two external resistor for scaling but one is # tied to a positive reference voltage. See ITE8705/12 datasheet (SIS950 # data sheet is wrong) # Vs = (1 + Rin/Rf) * Vin - (Rin/Rf) * Vref. # Vref = 4.096 volts, Vin is voltage measured, Vs is actual voltage. # The next two are negative voltages (-12 and -5). # The following formulas must be used. Unfortunately the datasheet # does not give recommendations for Rin, Rf, but we can back into # them based on a nominal +2V input to the chip, together with a 4.096V Vref. # Formula: # actual V = (Vmeasured * (1 + Rin/Rf)) - (Vref * (Rin/Rf)) # For -12V input use Rin/Rf = 6.68 # For -5V input use Rin/Rf = 3.33 # Then you can convert the forumula to a standard form like: compute in5 (7.67 * @) - 27.36 , (@ + 27.36) / 7.67 compute in6 (4.33 * @) - 13.64 , (@ + 13.64) / 4.33 # # this much simpler version is reported to work for a # Elite Group K7S5A board # # compute in5 -(36/10)*@, -@/(36/10) # compute in6 -(56/10)*@, -@/(56/10) # compute in7 ((6.8/10)+1)*@ , @/((6.8/10)+1) set in0_min 1.5 * 0.95 set in0_max 1.5 * 1.05 set in1_min 2.4 set in1_max 2.6 set in2_min 3.3 * 0.95 set in2_max 3.3 * 1.05 set in3_min 5.0 * 0.95 set in3_max 5.0 * 1.05 set in4_min 12 * 0.95 set in4_max 12 * 1.05 set in5_max -12 * 0.95 set in5_min -12 * 1.05 set in6_max -5 * 0.95 set in6_min -5 * 1.05 set in7_min 5 * 0.95 set in7_max 5 * 1.05 #the chip does not support in8 min/max # Temperature # # Important - if your temperature readings are completely whacky # you probably need to change the sensor type. # Adujst and uncomment the appropriate lines below. # The old method (modprobe it87 temp_type=0xXX) is no longer supported. # # 2 = thermistor; 3 = thermal diode; 0 = unused # set sensor1 3 # set sensor2 3 # set sensor3 3 # If a given sensor isn't used, you will probably want to ignore it # (see ignore statement right below). # label temp1 "M/B Temp" set temp1_over 40 set temp1_low 15 # label temp2 "CPU Temp" set temp2_over 45 set temp2_low 15 # ignore temp3 label temp3 "Temp3" set temp3_over 45 set temp3_low 15 # The A7V8X-X has temperatures inverted, and needs a conversion for # CPU temp. Thanks to Preben Randhol for the formula. label temp1 "CPU Temp" label temp2 "M/B Temp" compute temp1 (-15.096+1.4893*@), (@+15.096)/1.4893 # The A7V600 also has temperatures inverted, and needs a different # conversion for CPU temp. Thanks to Dariusz Jaszkowski for the formula. # label temp1 "CPU Temp" # label temp2 "M/B Temp" # compute temp1 (@+128)/3, (3*@-128) # Fans set fan1_min 0 set fan2_min 0 # ignore fan3 set fan3_min 0 # The following is for the Inside Technologies 786LCD which uses either a # IT8705F or a SIS950 for monitoring with the SIS630. # You will need to load the it87 module as follows to select the correct # temperature sensor type. # modprobe it87 temp_type=0x31 # The sensors-detect program reports lm78 and a sis5595 and lists the it87 as # a misdetect. Don't do the modprobe for the lm78 or sis5595 as suggested. # # delete or comment out above it87 section and uncomment the following. #chip "it87-*" # label in0 "VCore 1" # label in1 "VCore 2" # label in2 "+3.3V" # label in3 "+5V" # label in4 "+12V" # label in5 "3.3 Stdby" # label in6 "-12V" # label in7 "Stdby" # label in8 "VBat" # in0 will depend on your processor VID value, set to voltage specified in # bios setup screen # set in0_min 1.7 * 0.95 # set in0_max 1.7 * 1.05 # set in1_min 2.4 # set in1_max 2.6 # set in2_min 3.3 * 0.95 # set in2_max 3.3 * 1.05 # set in3_min 5.0 * 0.95 # set in3_max 5.0 * 1.05 # +- 12V are very poor tolerance on this board. Verified with voltmeter # set in4_min 12 * 0.90 # set in4_max 12 * 1.10 # set in5_min 3.3 * 0.95 # set in5_max 3.3 * 1.05 # set in6_max -12 * 0.90 # set in6_min -12 * 1.10 # set in7_min 5 * 0.95 # set in7_max 5 * 1.05 # vid not monitored by IT8705F # ignore vid # compute in3 ((6.8/10)+1)*@ , @/((6.8/10)+1) # compute in4 ((30/10) +1)*@ , @/((30/10) +1) # compute in6 (1+232/56)*@ - 4.096*232/56, (@ + 4.096*232/56)/(1+232/56) # compute in7 ((6.8/10)+1)*@ , @/((6.8/10)+1) # Temperature # label temp1 "CPU Temp" # ignore temp2 # ignore temp3 # Fans # set fan1_min 3000 # ignore fan2 # ignore fan3 chip "fscpos-*" # Fujitsu-Siemens Poseidon chip # Temperature
