I have a 6820hk in my 17 r3. I was playing around with some of the overclock settings, and was wondering what normal cpu fluctuations are?  Unless completely idle the cpu seems to bounce around a little and not warm up then cool down smoothly. I guess you would say small spikes in temp? Kinda like a 4 to 8 degree jump here and there while doing non demanding task. Perhaps a few degrees wider when gaming. Is this normal temp flux. or do you think it's perhaps bad paste or paste job. I know these laptops are reported to have bad paste/paste jobs anyways, just didn't know if that would contribute to bouncy cpu temps. (side note: I do not want to, or plan on diving into re-pasting this laptop, This 17 R3 is not at all like my old M17x R3.)
 
Ex. while writing this post the cpu temp is going from 29 to 34, to 29, to 40, to 32, to 28, to 34, to 50 across a 30 second span. I do have it overclocked a little and fans are running but lowest speed and silent. So maybe since it's not actively asking for cooling and the fans are not spinning up it's getting more flux? under low fan speed situations? In game it would flux from 53 to 65 and every now and then see a quick spike up to 72 or something like that.

Is normal..Intel SpeedStep and C-States are enabled by default in the BIOS, so return them to the defaults if you changed them.
 
But what will most likely 'fix' it is going to Windows Control Panel -> Power Options, and set the Power Plan to Power saver instead of the Windows default setting of Balanced (recommended)..Otherwise, my CPU frequency and temperature flips around all over the place..Using the Power saver plan, it's fine, low and steady at idle and bangs right up to 5GHz when off-idle/gaming..I'm using a desktop PC and the Power saver plan may be already enabled on a laptop, don't know, just sayin'.

Here is the average normal and Maximum CPU Temp showed in pictures.
For Complete Guide here is the link