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Man Pages
CHM(8) FreeBSD System Manager's Manual CHM(8)

chm
console display motherboard pm chipset data information

chm [-I | -S] [-fkh] [-d delay] [-x duty] [-r register] [-w value]

chm is a console application that provides a visual various readings provided by the hardware monitoring chipset on your motherboard.

The following command line options are available:

Use the /dev/io interface instead of /dev/smb0. Required for versions of 3.x before Nov 01 1999 and some motherboards without SMBUS supported chipsets.
Use the SMBUS interface (default). This is only available if SMBUS support is compiled in.
Use Fahrenheit temperature scale.
Use Kelvin temperature scale.
Display help.
n
Microseconds to wait between updates.
duty
Set fan speed to duty percent of full voltage.
register
Read a register directly from the chipset, use decimal.
value
Write value to register specified by -r, to chipset. **KNOW WHAT YOU ARE DOING**

The following kernel configuration options are required to use the /dev/smb0 interface:

controller      smbus0
controller      iicbus0
controller      iicbb0
controller      intpm0
device          smb0    at smbus?

Currently, the intpm(4) controller is only available in FreeBSD 4.0+ and 3.3-STABLE after 01 November 1999 although the /dev/io interface may work on old versions and more motherboards.

intpm(4), smb(4), smbus(4)

Mike Muir <mmuir@es.co.nz>.
May 31, 2000 FreeBSD

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