# lm-sensors 3.x configuration file for the Gigabyte GA-7N400 Pro2 rev 1
# 2009-06-09, Jean Delvare <khali@linux-fr.org>
# Values guessed from the BIOS and Gigabyte's EasyTune application.
# Comments welcome!

chip "it8712-*"

# Voltages

   label  in0  "Vcore"
   label  in1  "Vdimm"         # DDR25V in the BIOS, not in EasyTune
   label  in2  "+3.3V"
   label  in3  "+5V"
   label  in4  "+12V"
   label  in5  "Vagp"          # Not in the BIOS, guessed
                               # in6 not in the BIOS
   label  in7  "5VSB"          # Not in the BIOS, guessed
   ignore in8                  # Saturated
   label  cpu0_vid "VID"

   # This BIOS doesn't display voltage values, it only says whether the
   # readings are OK or not. The scaling factors are guessed from EasyTune.
   # I'm certain I got it right for in3 (+5V). For in4 (+12V) I'm not so
   # sure yet, but at least the scaling factor below gives me results in
   # line with EasyTune. EasyTune doesn't display 5VSB (and I'm not even
   # sure if it really is 5VSB) but +5V and 5VSB usually need the same
   # scaling factor.
   compute in3  @ * 2,     @ / 2
   compute in4  @ * 3.963, @ / 3.963
   compute in7  @ * 2,     @ / 2

   # Vcore limits: apparently the board is driving the CPU at a slightly
   # higher voltage than it should (1.70 V while VID says 1.65 V). On
   # the other hand, EasyTune shows a slightly lower value. Given that
   # Vcore obviously doesn't need scaling resistors, it isn't clear to
   # me how the difference can be explained. I suspect that EasyTune
   # applies an arbitrary (negative) offset to the readings, but this
   # makes little sense to me.
   set in0_min  cpu0_vid * 0.95
   set in0_max  cpu0_vid * 1.05

   # Vdimm limits: the board is driving my PC3200 modules at 2.7 V.
   set in1_min   2.7 - 0.1
   set in1_max   2.7 + 0.1
   # Presumably slower memory modules (PC1600 to PC2700) would use a
   # lower voltage.
   #set in1_min   2.55 - 0.1
   #set in1_max   2.55 + 0.1

   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 * 0.95
   set in4_max  12.0 * 1.05
   set in5_min   1.5 * 0.95
   set in5_max   1.5 * 1.05
   set in7_min   5.0 * 0.90
   set in7_max   5.0 * 1.10

# Fans

   label  fan1  "CPU Fan"
   label  fan2  "Sys Fan"
   label  fan3  "PSU Fan"

   # Fan clock dividers default to 8 for all three fans, which should be
   # reasonable for most setups. Decreasing it for fast fans allows for
   # more accurate readings.
   # You can ask the BIOS to warn about failing fans, in which case the
   # initial min limit is set to 664 RPM.
   set fan1_div     4
   set fan1_min  1500

# Temperatures

   label  temp1  "Sys Temp"
   label  temp2  "CPU Temp"
   ignore temp3

   # This formula comes from the BIOS. I guess the offset is meant to
   # compensate for the distance between the CPU and the thermistor,
   # or for a thermistor type different from what the IT8712F expects.
   compute temp2  @ + 23, @ - 23

   # The max limit for the CPU temperature can be set in the BIOS
   # directly.
   set temp1_max 60