I have noticed that for many people, speedfan seems to work for them just fine. For me, it does not detect any of my fans, although it does detect all of the temp readings. Basically, Speedfan is completely empty except for the temp readings: https://imgur.com/a/tjZat
Motherboard: z170x Gaming-7 - https://goo.gl/gsLv2Z
Fans: 2x Red LED AF120 Corsair Fan - https://goo.gl/T4zHwi
2x Blue LED AF120 Corsair Fan - https://goo.gl/MuJ6BB
1x Sickleflow 120 Cooler Master Fan - https://goo.gl/dKMSYF
1x Hyper Evo 212 Cpu Fan - https://goo.gl/jdLxhz
Fan Hub: Silver Stone PWM Fan Hub - https://goo.gl/EqBVt4
Speedfan scan report:
Win9x:NO 64Bit:YES GiveIO:NO SpeedFan:YES
I/O properly initialized
Linked ISA BUS at $0290
Linked Intel Sunrise Point SMBUS at $F000
Found nVidia GeForce GTX 960
Linked nVidiaI2C0 SMBUS at $3D403E3F
Linked nVidiaI2C1 SMBUS at $3D403637
Linked nVidiaI2C2 SMBUS at $3D405051
Scanning ISA BUS at $0290...
SuperIO Chip=IT8628E
Linked ISA BUS at $0A40
Scanning Intel SMBus at $F000...
Scanning I2CNVidia SMBus at $3D403E3F...
Scanning I2CNVidia SMBus at $3D403637...
Scanning I2CNVidia SMBus at $3D405051...
Scanning ISA BUS at $0A40...
IT8628E found on ISA at $A40
Found INTEL SSDSC2BW240H6 on AdvSMART
Found ST500DM002-1BD142 on AdvSMART
Found ST3750640AS on AdvSMART
INFO : SCSI DISABLED by user or because iaStorA.sys is installed
Found ACPI temperature
Found Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz
End of detection
Loaded 0 events
CLOCK GENERATOR set to nVidia nForce2
Motherboard: z170x Gaming-7 - https://goo.gl/gsLv2Z
Fans: 2x Red LED AF120 Corsair Fan - https://goo.gl/T4zHwi
2x Blue LED AF120 Corsair Fan - https://goo.gl/MuJ6BB
1x Sickleflow 120 Cooler Master Fan - https://goo.gl/dKMSYF
1x Hyper Evo 212 Cpu Fan - https://goo.gl/jdLxhz
Fan Hub: Silver Stone PWM Fan Hub - https://goo.gl/EqBVt4
Speedfan scan report:
Win9x:NO 64Bit:YES GiveIO:NO SpeedFan:YES
I/O properly initialized
Linked ISA BUS at $0290
Linked Intel Sunrise Point SMBUS at $F000
Found nVidia GeForce GTX 960
Linked nVidiaI2C0 SMBUS at $3D403E3F
Linked nVidiaI2C1 SMBUS at $3D403637
Linked nVidiaI2C2 SMBUS at $3D405051
Scanning ISA BUS at $0290...
SuperIO Chip=IT8628E
Linked ISA BUS at $0A40
Scanning Intel SMBus at $F000...
Scanning I2CNVidia SMBus at $3D403E3F...
Scanning I2CNVidia SMBus at $3D403637...
Scanning I2CNVidia SMBus at $3D405051...
Scanning ISA BUS at $0A40...
IT8628E found on ISA at $A40
Found INTEL SSDSC2BW240H6 on AdvSMART
Found ST500DM002-1BD142 on AdvSMART
Found ST3750640AS on AdvSMART
INFO : SCSI DISABLED by user or because iaStorA.sys is installed
Found ACPI temperature
Found Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz
End of detection
Loaded 0 events
CLOCK GENERATOR set to nVidia nForce2