Problem in /dev/hd1 and /dev/hd9var Post: 302870095

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LEARN ABOUT CENTOS

pwmconfig

PWMCONFIG(8)						      System Manager's Manual						      PWMCONFIG(8)

NAME

       pwmconfig - tests the PWM outputs of sensors and configures fancontrol

SYNOPSIS

       pwmconfig

WARNING

       pwmconfig  will	attempt  to  stop your fans, one at a time, for approximately 5 seconds each. This may cause your processor temperature to
       rise. Verify that all fans are running at normal speed after this program has exited.  pwmconfig does its best to check that the  fans  are
       spinning  when  they  are supposed to, but due to the diversity of available motherboards and fans, it shouldn't be blindly trusted. Always
       verify by yourself.

       It is strongly recommended to run pwmconfig at a time when there is no significant system load, to minimize the risk of overheating.

DESCRIPTION

       pwmconfig searches your sensors for pulse width modulation (PWM) controls, and tests each one to see if it controls a fan on  your  mother-
       board. Note that many motherboards do not have PWM circuitry installed, even if your sensor chip supports PWM.

       When a connection is established between a PWM control and a fan, pwmconfig can generate a detailed correlation, to show how a given fan is
       responding to various PWM duty cycles.

       Lastly, pwmconfig will enter in fancontrol configuration mode (unless you decide to skip that part.) In this mode, you are invited to enter
       several	parameters which will determine how the fancontrol daemon regulates the speed of one or more fans in your system based on tempera-
       ture measurements. In particular, you will have the opportunity to establish mappings between fans and temperature inputs, define the  tem-
       perature  range	over  which  the speed of the fan should be adjusted dynamically, the minimum speed at which the fan should spin, etc. See
       fancontrol(8) for additional information.

BUGS

       The term "PWM" is used because most fan control systems in computers are based on pulse width modulation. Some motherboards however use	DC
       variation instead. So, the term "PWM" should be seen as a generic term for "fan speed control", regardless of the actual method used.

SEE ALSO

       fancontrol(8), sensors(1).

AUTHORS

       Marius Reiner <marius.reiner@hdev.de>, Jean Delvare <khali@linux-fr.org>

lm-sensors 3							September 28, 2008						      PWMCONFIG(8)