BTW, can you point me in the direction of a tutorial where I can learn to overclock my cpu? I've been trying to search, and I'm not having much luck.
I can give you a basic rundown.
1) First you'll have to ID the chipset on your motherboard. if it's a "z"+(some 2 digit number) motherboard you'll be able to overclock that cpu. (like z77, or z68)
2) go into your bios, i don't know what your motherboard is, so these instructions will be a little general, so you might have to figure a little bit of this out on your own.
3) go to the "advanced" settings or "main settings"
4) change from automatic to manual.
5) change the cpu multiplier from automatic to manual. on the 2500k, the base cpu multiplier will be x33 which makes a cpu frequency of 3.3ghz (cpu frequency 100mhz x 33 cpu multiplier = 3300mhz or 3.3ghz). Bump it up +1 (3.4ghz)
6) go down to the voltage control, look for vcore. change it from automatic to manual. leave it at whatever voltage it is currently (all cpus differ a little on their stock vcore)
7) save and exit the bios, your computer will restart. let it load into windows. Assuming it loads into windows without any issues, reset the computer and log back into the bios, bump the cpu multiplier by +1, rince and repeate. Continue bumping and loading into windows until the computer starts to behave strangely, crashing when loading windows, getting sluggish or odd, programs not loading, or failing to post. If any of this starts to happen back the overclock down one step and dl two programs, one is prime95 the other hwmonitor. Turn on hardware monitor and then let prime95 run. If prime crashes or a core fails or your computer crashes, you don't have enough voltage. Bump the vcore 1 step (this depends on the motherboard but it should be something close to +0.0125V), save and retry prime. If prime can run for 10-20 minutes and temps don't get over 85C on the cpu, you can continue to increase the cpu multiplier, only from this point on, you'll need to test each bump in multiplier with prime95.
8) once temps become an issue you've hit the end of your overclocking. back the overclock down to the last good version, and run an extended prime95 burn (12 hours or so). if it passes then your overclock is stable.
~this is a quick and dirty, there are more things you can do, but this is the basics. its a good thing to do with a lazy afternoon. takes a lot of trial and error, but overall can give you some rather nice results.