This stuff needs optimisation, but works for now. I put this page together, because I had my trouble getting the right values in there after installing LM sensors on my boxes and the documenation i found around wasn't fullfilling. I will document all machines I get my fingers on in time (i've got a couple now, but these were the ones, that needed most changes in config).

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loke - Tyan Thunder K7 (S2462UNG)
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Modules needed:
i2c-amd756
i2c-isa

The following module may not be loaded before this initalization script:
--> 

modprobe w83781d init=0 force_subclients=0,0x2c,0x4a,0x4b

- sensors.conf

chip "w83627hf-*"

# all sensors on this board are 3904 transistors
    set sensor1 2
    set sensor2 2
    set sensor3 2

# fan connected to CPU 0; label P1FAN on motherboard
   label fan1 "CPU0 fan"
# fan connected to CPU 1; label P2FAN on motherboard
   label fan2 "CPU1 fan"
# I couldn?t find a connector for this fan input
   label fan3 "(unused)"

   label temp1 "CPU0"   
   label temp2 "CPU1"   
   label temp3 "Chassis"

   set fan1_div 1
   set fan2_div 1
   set fan3_div 1

   set fan1_min 0
   set fan2_min 0
   set fan3_min 0

   set temp1_over 80
   set temp1_hyst 75

   set temp2_over 80
   set temp2_hyst 75

   set temp3_over 80
   set temp3_hyst 75

chip "w83782d-*"

# all sensors on this board are 3904 transistors
   set sensor1 2
   set sensor2 2
   set sensor3 2

# fan connectors on lower left hand corner of board
   label fan1 "Chassis 1"
   label fan2 "Chassis 2"
# fan connector adjacent to PSU connector labeled FAN3
# (probably intended for high-end PSUs with fan connectors)
   label fan3 "PSU fan"

   set fan1_div 1
   set fan2_div 1
   set fan3_div 1

   set fan1_min 0
   set fan2_min 0
   set fan3_min 0

# apparently these sensors are placed in proximity to the CPUs
# these could be reversed, but from what I saw on my board, these
# seem to be right as they are

   label temp1 "CPU1 Far"
   label temp2 "CPU0 Far"

# this almost always reads the same as the sensor on the other chip
# for CPU1, I?m assuming this is where it is...

   label temp3 "CPU1"

   set temp1_over 80
   set temp1_hyst 75

   set temp2_over 80
   set temp2_hyst 75

   set temp3_over 80
   set temp3_hyst 75

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thor - Abit VP6
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Modules needed:
i2c-viapro
i2c-isa
via686a
lm80   

- sensors.conf

chip "via686a-*"
    label "2.0V" "CPU core"
    label "2.5V" "+2.5V"   
    label "3.3V" "I/O"
    label "5.0V" "+5V"
    label "12V" "+12V"

    label fan1  "CPU0 Fan"
    label fan2  "CPU1 Fan"

    label temp1 "CPU0 Temp"
    label temp2 "CPU1 Temp"
    label temp3 "SBr Temp" 

    set in0_min 2.0
    set in0_max 2.5

    set temp1_hyst 40
    set temp1_over 45
    set temp2_hyst 40
    set temp2_over 45
    set temp3_hyst 60
    set temp3_over 65

chip "lm80-*"
    
    label in0 "+5V"
    label in1 "VTT"
    label in2 "+3.3V"
    label in3 "+Vcore"
    label in4 "+12V"  
    label in5 "-12V"  
    label in6 "-5V"   

    label fan2 "CPU0 Fan"

    set fan1_div 2
    set fan2_div 2

    compute in0 (24/14.7 + 1) * @ ,	  @ / (24/14.7 + 1)
    compute in2 (22.1/30 + 1) * @ ,	  @ / (22.1/30 + 1)
    compute in3 (2.8/1.9) * @,     	  @ * 1.9/2.8
    compute in4 (160/30.1 + 1) * @,	  @ / (160/30.1 + 1)
    compute in5 (160/35.7)*(@ - in0) + @, (@ + in0 * 160/35.7)/ (1 + 160/35.7)
    compute in6 (36/16.2)*(@ - in0) + @,  (@ + in0 * 36/16.2) / (1 + 36/16.2) 

    set in0_min 5 * 0.95
    set in0_max 5 * 0.95
    set in1_min 2 * 0.95
    set in1_max 2 * 1.05
    set in2_min 3.3 * 0.95
    set in2_max 3.3 * 1.05

    set in3_min 1.9 * 0.95
    set in3_max 1.9 * 1.05
    set in4_min 12 * 0.95 
    set in4_max 12 * 1.05 
    set in5_min -12 * 1.05
    set in5_max -12 * 0.95
    set in6_min -5 * 1.05 
    set in6_max -5 * 0.95