Safe Temperature for CPU and GPU

I have Samsung NP550P5C-S02IN laptop with i7 3610QM and Nvidia GT 650M. When I am gaming (Battlefield 3, Crysis 2) the CPU temps are about
95 C and GPU about 88 C maximum. However I am not experiencing any throttling

Are these safe ?
What are the limits for temperature on CPU and GPU ?? What are the side effects of prolonged exposure to high temp ??

Which is the best Laptop cooler that can blow air on the underside of the laptop ?

 

for pro gaming laptops 95c is touching the threshold limit but i have no idea abought your samsung model.
when was the last time you cleaned the fans and vents out with compressed air as this is the biggest factor for rising temps.
next it could need a repaste of the thermal paste

 

I'd say anything below 90C is safe, for both CPU and GPU. 90 to 100C is "danger" - various pieces of hardware often throttle in this range; above 100C is "panic" - various pieces of hardware often perform a shutdown in this temperature range, to prevent physical damage.

ARK | Intel® Core

Intel's specs for i7-3610QM say that the Tjunction parameter for this CPU is set at 105C. That's when the CPU will shutdown.

 

^^ This is a brand new laptop (bought on 22 Sep). Will it require a new thermal paste ?? Is laptop cooler a good solution ??

 

Sometimes the factory does not do an "optimal" job pasting the GPU / CPU. I would recommend looking through the excellent thread here http://forum.notebookreview.com/accessories/304671-notebook-coolers-buyers-guide.html for specific advise about your model and which cooler would do the best job. Also what are your ambient temps?
When I searched here Search Results - Digit Technology Discussion Forum there was some temp discussion on your model