# lm_sensors configuration file for the Gigabyte K8N Ultra 9 motherboard
# 2005-11-10, Nicolas Mailhot <nicolas.mailhot (at) laposte.net>
# Based on the configuration file for the Gigabyte K8V Ultra-939 motherboard
# 2005-08-28, Jean Delvare <khali@linux-fr.org>
# Thanks to Rudolf Marek and Grant Coady for their help.
# Comments welcome!


### CPU core sensor
chip "k8temp-*"

   label temp1 "Core1 Temp"
   label temp2 "Core1 Temp"
   label temp3 "Core2 Temp"
   label temp4 "Core2 Temp"

# The sensor chip is a IT8712F 
chip "it87-*" "it8712-*"

### Voltages

   # Gigabyte seems to follow the recommended wirings, except for the
   # battery. It always reads 0.00V so I think they wired the pin to the
   # analog ground. The IT8705F application note recommends not to
   # leave unused voltage inputs floating, but Gigabyte seemingly did
   # so for in5, in6 and in7 and most probably in3.

   label  in0  "Vcore"   # First Vcore sensor
   label  in1  "Vram"    # "DDR25V" in BIOS
   label  in2  "+3.3V"
   ignore in3            # Left floating
   label  in4  "+12V"
   ignore in5            # Left floating
   ignore in6            # Left floating
   ignore in7            # Left floating
   label  in8  "VBat"    # Not in BIOS
   label  vid  "Vid"   	 # Nnominal voltage of the CPU

   # Vcore, Vram, +3.3V and Ground are connected directly, so no compute
   # line is needed for these. For +12V, Gigabyte refused to confirm
   # the resistor values. The BIOS provided a hint, but it is most
   # certainly bogus, as the formula doesn't make physical sense.

   # In fact, the default formula seems to work just well. Measurements
   # suggest a 4.03 ratio, as opposed to 4.00 with default resistor
   # values. This fits within the margins assuming 1% precision
   # resistors. The tool provided by Gigabyte, "Easy Tune 5", seems to
   # use a ratio of 4.06, which is also within the margins.

   # From ITE's "IT8705F application circuit"
   compute  in4  @ * ((30/10)+1), @ / ((30/10)+1)
   # From BIOS
   # compute  in4  @ * 32500 / 8200 + 0.3, (@ - 0.3) * 8200 / 32500
   # From Easy Tune 5
   # compute  in4  @ * 4.06, @ / 4.06

   # The BIOS won't set any limit for voltages.

   # I have an Athlon 64 3200+, those Vcore can vary from 1.1 to 1.4 V
   # depending on current frequency.
   set in0_min 1.1 * 0.95
   set in0_max 1.4 * 1.05

   set in1_min 2.5 * 0.95
   set in1_max 2.5 * 1.05
   set in2_min 3.3 * 0.95
   set in2_max 3.3 * 1.05
   # set in3_min 5   * 0.95
   # set in3_max 5   * 1.05
   set in4_min 12  * 0.95
   set in4_max 12  * 1.05

### Temperatures

   # This is not connected to anything and always reads 25°C
   ignore temp1 
   label  temp2  "CPU Temp" 
   # This does not seem to be connected anywhere
   ignore temp3  

   set sensor1 0
   set sensor3 0

   # My usual CPU temperature range - very conservative esp. the 65
   # Adapt if your case is not well cooled - most CPUs can take much more
   set temp2_low  15
   set temp2_over 65

### Fans

   # CPU_FAN connector
   label  fan1  "CPU Fan"
   # SYS_FAN and PWR_FAN connectors
   label  fan2  "Back Fan1"
   label  fan3  "Back Fan2"

   # The board needs a fan divisor of 8 which is the default nowadays

   # set fan1_div 8
   # set fan2_div 8
   # set fan3_div 8

   # I have slow Nexus fans (CPU Fan: 120 mm, back fans: 80 mm on Zalman
   # Fanmates) which explains the low limits
   # This has been tested with BIOS PC speaker monitoring

   set fan1_min 975
   set fan2_min 650
   set fan3_min 650