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SpeedFan 4.50
Copyright 2000-2014 by Alfredo Milani Comparetti
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Supported devices and system bus used to access temperature sensors
In order to find hardware monitoring chips and temperature sensors, SpeedFan needs access to several resources on your motherboard. Some of them can be found on ISA. All PCs have got ISA, even if there is no ISA slot. Some other chips are embedded in the SuperIO chip. Some others can be found on the SMBus. In order to access the 2-wire SMBus (System Management Bus) serial bus, SpeedFan needs to communicate with other devices. SpeedFan recognizes and properly accesses the following BUSes:

Supported BUSes
BUS Notes
ALi M1533
ALi M1535D/D+
ALi M1543
ALi M1563
ALi M1573
AMD 756
AMD 766
AMD 768
AMD 8111 SMBus 1.0
ATI Radeon 9100 IGP (IXP150)
ATI SB300
ATI SB400
Intel 440MX
Intel 6300ESB
Intel 82801AA (ICH)
Intel 82801AB (ICH0)
Intel 82801BA (ICH2)
Intel 82801BAM (ICH2-M)
Intel 82801CAM (ICH3)
Intel 82801DB (ICH4)
Intel 82801EB (ICH5)
Intel 82801FB (ICH6)
Intel 82801GB (ICH7)
Intel 82801HB (ICH8)
Intel PIIX4
Intel PIIX4E
ISA BUS An ISA BUS is present in every PC even if there is no ISA SLOT. A lot of legacy devices are connected to the ISA BUS. Several hardware monitoring chips are accessible through the ISA BUS. This BUS is much faster than any other SMBus.
nVidia GeForce
nVidia MCP04
nVidia NForce
nVidia NForce2
nVidia NForce3
nVidia nForce4
nVidia nForce410
ServerWorks OSB4 SF will return errors with this SMBus if it's not enabled, but it can properly access it if enabled. If you're getting errors, try to download a BIOS update first and try to enable ACPI in your BIOS.
SiS630
SiS635
SiS645
SiS645DX
SiS648
SiS650
SiS651
SiS655
SiS730
SiS735
SiS740
SiS745
SiS746
ULi M1689
VIA VT8231
VIA VT8233
VIA VT8233A
VIA VT8235
VIA VT8237
VIA VT82C596
VIA VT82C596B
VIA VT82C686A
VIA VT82C686B
There are 58 BUSes listed here.

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