Jawny :
I'm buying a i5 2500k 3.30Ghz, I've been seeing people on youtube OC'ing there 2500k's to 4.5Ghz
Isn't that over kill! I thought 4Ghz was pushing it. I want to OC mine when I play BF3 but is it safe to OC that much? under the proper Cooling conditions obviously.
BF3 is mostly a graphics limited game, not a cpu limited one.
It would run as well on a stock 2500K.
From that point of view, 4.5 is overkill.
My take is to use a conservative oc. By that, I mean an OC that does not increase the cpu voltage.
OC by gradually increasing the multiplier from 33 to 40 or so, and leave everything else on default or auto.
I happen to be satisfied at 40.
Verify that any OC is stable.
Run prime95 with rounding checking long enough to let the temperature stabilize at it's max. You should get NO errors.
Monitor the temperature. I use realtemp.
Also, keep an eye on the multiplier. It should stay at max. If it drops, it indicates that the OC is too much, and the multiplier is being reduced to protect the chip.