With stock paste, the 6820 does run hot when overclocking, so I would just keep it stock.  Since the heatsink is shared and gaming stresses the CPU and GPU. the heat does get out of hand.  I would reserve CPU overclocking for CPU only tasks, such as rendering. If you want a custom profile with some overclocking when gaming, focus on overclocking only the GPU, you wil get the most out of the GPU, since there is not that much performance gain when overclocking the CPU for gaming.

vistarshook

Leal89
thanks so much, any suggest to overclock the gtx980m? another question is the OC bios mode my setups is normal now so all thecoe are 3.6, and the ring ratio is 3,6 , when i turn the precisionx mobile the cpu clock various from 2,6 to 3,2 ghz is that normal?
 

Yes, normal.  The stock settings for the 6820 is 2,7GHz base clock with turbo clock to 3,6GHz for one core, 3,4GHz for two cores and 3,2GHz for all four cores.
For overclocking the GPU, the mileage varies to each unit, but you can start with +120 for the core and +400 for the memory.  Then try +150 core, +500 memory.

The 980m is capped at +135 at the core. Usually it's pretty stable, but certain games like DQ11 will crash if you run it overclocked too high. I've also seen the power limit in Afterburner, which makes me think the stock voltage is too low and I haven't found a way to increase it.