My fan is pulsing on and off

Once my CPU get up to 60°C my CPU fan turns on until it gets down to 45-ish, which takes about 20 seconds. Then it turns off all together for 2 minutes until reaches 60°C again, at which point the cycle repeats. Is this normal behavior? Can I tell it to like.. run at 10% speed so that it keep itself cool rather than pulsing on at full speed once it reaches a certain temperature?
This is the output of the "sensors" command
coretemp-isa-0000
Adapter: ISA adapter
Physical id 0: +50.0°C (high = +87.0°C, crit = +105.0°C)
Core 0: +50.0°C (high = +87.0°C, crit = +105.0°C)
Core 1: +44.0°C (high = +87.0°C, crit = +105.0°C)
According to what I've read, it is supposed to list my fan and it's voltage..
Update:
According to the arch wiki on fan speed control, I should be able to read the current fan speed in "/sys/class/hwmon/hwmon0/device/fan1_input", however, that file does not exist.
$ ls /sys/class/hwmon/hwmon0/
device power temp1_crit temp1_input temp1_max temp2_crit_alarm temp2_label temp3_crit temp3_input temp3_max
name subsystem temp1_crit_alarm temp1_label temp2_crit temp2_input temp2_max temp3_crit_alarm temp3_label uevent
$ ls /sys/class/hwmon/hwmon0/device
driver driver_override hwmon modalias power subsystem uevent
$ ls /sys/class/hwmon/hwmon0/device/hwmon/
hwmon0
$ ls /sys/class/hwmon/hwmon0/device/hwmon/hwmon0/
device power temp1_crit temp1_input temp1_max temp2_crit_alarm temp2_label temp3_crit temp3_input temp3_max
name subsystem temp1_crit_alarm temp1_label temp2_crit temp2_input temp2_max temp3_crit_alarm temp3_label uevent
Last edited by BlackCap (2015-05-18 12:51:04)

Try to Reset your device:
Press and hold both the Sleep/Wake button and the Home button for at least ten seconds, until the Apple logo appears (ignore the Slide to Power Off option that shows up first.
If that does not help, then try a Restore.
http://support.apple.com/kb/HT1414

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