Your temps are higher than I like, although regular use - even gaming - should not drive them that high.
I also would not count on your temps dropping as AS5 cures. I have been using AS5 for years (a little tube goes a long way) and I have never noticed a significant difference in pre- and post-cure temps.
me? id take it your cpu will never be maxxed 100% all the time in everyday things like games. if you want to be sure tho run hw monitor while playing the most demanding games you have and see how high they heat it up
there are a few threads floating around here with folks getting 4.5 under 1.3 Vcore.
i believe the trick is to turn off speedstep and use a light hand with LLC (load line calibration) but please do NOT take that as gospel since i myself do not have a i5-2500k.
well i dont wana keep pusing for lower voltage and mesing around with setings cuz im woried BSOD is going to screw up my os and im gona have to reformat......and reformating a freshly formated system is about as boring and dull as dirt....(windows updates :Z) haha
or can i BSOD billions of times without having to wory about that ?