I had the same problem... I started to use tpfancontrol 0.62 and really works. Try it your self and you should see...
If anyone knows how to configure tpfancontrol.ini for my lenovo g550 with g210m please let me know.
My fan work always, before it worked for a minute then pause for about 4 mins, now it works continually, it stops just a little (for 10 sec, and starts again).
Can anyone tell me why , or this is random at Lenovo G550 ???
@ alli'm closing out this thread, and have started a new one here.