lm_sensors config for ASRock H81M-VG4 R2.0

asrock-h81m-vg4-r2.0

#
# ASRock H81M-VG4 R2.0
#
# Got the info needed from
# https://gist.github.com/michalzielanski/52356e6116b3fa94b0350c8956433a07
#
# From Nuvoton NCT6776D Data Sheet:
# - 8-bit Analog to Digital Converter (ADC). Voltage range 0 - 2.048V,
#   8mV LSB (256 steps x 8mV = 2.048V).
# - Scaling equation: (Value * 8mV * (R1 + R2)) / R2 [1]
#   (* 8 already done by driver)## From ASRock A-Tuning Utility config file (H81MVG4R2.xml)
#       CPU Input Volt  Reg: 0x20       R1: 0           R2: 1
#       +3.3v           Reg: 0x23       R1: 0x22 (34)   R2: 0x22 (34)
#       +12v            Reg: 0x25       R1: 0x38 (56)   R2: 0x0A (10)
#       +5v             Reg: 0x26       R1: 0x14 (20)   R2: 0x0A (10)
#
# From nct6776 driver source code (nct6775.c) [2]
# - Registers map:
#       0x20    0x21    0x22    0x23    0x24    0x25    0x26    0x550   0x551
#       in0     in1     in2     in3     in4     in5     in6     in7     in8
#       VCCIN?  ?       AVCC    +3.3    ?       +12v    +5v     3VSB    VBat
#
# [1] http://forums.tweaktown.com/asrock/56753-asrock-e3c224d2i-e3c226d2i-lm-sensors-linux-configuration-post479087.html#post479087
# [2] http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/hwmon/nct6775.c
#
chip "nct6776-isa-0290"
	label   in0             "CPU Input Volt." # As per H81MVGR2.xml, but seems more like CPU SA Voltage

	# unknown - not used?
	ignore  in1
	
	# AVCC - Analog +3.3V power input. Internally supply power to all analog
	label   in2             AVCC
	set     in2_min         3.3 * 0.95
	set     in2_max         3.3 * 1.05

	label   in3             "+3.3v"
	set     in3_min         3.3 * 0.95
	set     in3_max         3.3 * 1.05

	# unknown - not used?
	ignore  in4

	label   in5             "+12v"
	compute in5             @ * ((56 + 10) / 10), @ / ((56 + 10) / 10)
	set     in5_min         12 * 0.95
	set     in5_max         12 * 1.05

	label   in6             "+5v"
	compute in6             @ * ((20 + 10) / 10), @ / ((20 + 10) / 10)
	set     in6_min         5 * 0.95
	set     in6_max         5 * 1.05

	# 3VSB - +3.3V stand-by power supply for the digital circuits
	label   in7             3VSB
	set     in7_min         3.3 * 0.95
	set     in7_max         3.3 * 1.05

	label   in8             "VBat"
	set     in8_min         3.0 * 0.90
	set     in8_max         3.3 * 1.10

	label   fan1            "Case FAN"
	set     fan1_min        800

	label   fan2            "CPU FAN"
	set     fan2_min        600

	# Ignoring other fan inputs since ASRock H81M-VG4 R2.0 only has 2 fan headers
	ignore  fan3            # AUXFANIN
	ignore  fan4            # AUXFANIN0
	ignore  fan5            # AUXFANIN1
	ignore  fan6            # CPUFANIN2

	label   temp1           "M/B Temp"
	set     temp1_max       60
	set     temp1_max_hyst  55

	ignore  temp2           # Ignoring CPUTIN since it goes down with CPU load and up when idle
	ignore  temp3           # AUXTIN

	label   temp7           "CPU Temp"      # PECI Agent 0
	set     temp7_max       80
	set     temp7_max_hyst  75

	ignore  temp8           # PCH_CHIP_TEMP 0ºC
	ignore  temp9           # PCH_CPU_TEMP 0ºC
	ignore  temp10          # PCH_MCH_TEMP 0ºC

	ignore  intrusion0
	ignore  intrusion1
	ignore  beep_enable