I have sager NP1280 here. I've been expirementing with getthermal pretty extensively for a few days now. Just wanted to add in my expirences.
I'm using version 1.1 that i found using google search. For me, my fan setting ranges from 0-20, with 0 being off and 20 being full on. I noticed that if i use fan always on at lvl 3/20. The laptop is pretty quite and runs awsome temps (low 40s idle to 57 max at full load). But unfortunaly, you can't keep the fan always on feature once you close the program.
Other things i've noticed, when you change AC2 and Fan off to your own settings, the laptop will revert back to it's standard settings ocasionally. When you first boot up your computer, the laptop will use the default settings until the 45C fan off is reached. Once it reaches it, it will switch to your AC2 and fan off settings. But sometimes it will go back to the original settings until it reaches the default 45C fan off, then switch back to your settings.
I haven't quite figured out when it does that yet, but in all cases it will revert back to the settings you set, even after reboots (the once it reaches the default fan off 45C temp).
Other tips are, if you keep the interval between fan off and ac2 small. Like 52 for fan off and 57 for ac2. The fan speeds will be pretty low, if you make the gap big, like 45 for fan off and 60 for ac2, the fans will go at much louder speeds when it gets close to 60. For my laptop, i found that anything past the fan speed of 5/20 really didn't cool it any more effectively then having the fans at 20/20.
I ran prime 95 tortue test using the fan always on, setting it to spin at the 5/20 speed and comparing it to the 20/20 speed. It was only 1-2C cooler, but at 5/20 the laptop is as quite as a thinkpad.
BTW, i am using the undervolt method, running at 1.020 volts at my max cpu speed. So my laptop runs a bit cooler then stock.