Okay, so what's the highest I could get with a 2500? I just bought one because it was extremely cheap (<$120) and I couldn't get a good deal on the 2500k. I have a Coolermaster Hyper 212+ heatsink to go with it as well, but I've never touched the base clock.
Base clock might be able to be turned up +1 - +3 then up the multiplier if you can. Likely won't see more than 200mhz faster than stock. I tried this and ran into stability issues with an I5 2400 at anything faster than stock.
Non K series means your basically stuck with what you bought.
If you are very lucky to have the system stable you might get over 105mhz on the base clock but anything higher is where no one dare ties to go. Some have gotten up to 110mhz but that is really pushing it. That is why I am still in the stone ages with an ancient 1156 system and a 775 as well a am3+ 990fx. As for cooling you have that covered.