
actually I wanted to post the same guide for SB overclocking.
GloryD, the only reason I suggested you to try it because you own a "K" processor, which essentially means that your processor has unlocked multiplier. I am pretty sure you will be able to run this game @max even with no overclock whatsoever. It's just a pity that you have paid for the "K" and you are not exploring it

. It breaks an overclockers heart to see "K" processor at stock speeds

. From what I have experienced (I have owned couple 2500k's, and one 2600k, while looking for the one which would be 4,4-4,5 ghz stable)
and all of them were stable on stock voltage @4,0ghz with stock cooler. Going any higher will require you to change the default cooler and apply effective thermal compound. I use OCCT and intel burn test tool to test the stability of the cpu. Considering your lack of experience in this matter, I would simply give it a try by enabling OC mode in the bios and changing the multiplier so that you get 4,0ghz.
As I said starting with sandy bridge cpu's overclocking got much more easier in comparison how to tricky was it to overclock processors like AMD Athlon 64 3200+ (socket 939), which was my first overclocking experience and ever-since I have always overclocked my cpu's. Never ever I had a situation where a cpu was burned down due to overclock. My current 3570k been running @4,6ghz (cooled by Thermalright Ultra 120 Extreme) for almost three years with no issues whatsoever. Actually the only way I know how to "kill" sandy/ivy bridge cpu is by messing (not knowing the limit) with PLL voltage

, so leave at auto at all times. I for instance was able to reach 4,6ghz stable on my i5 3570k thanks to lowering auto pll voltage (auto set it to 1,8v and mine is running stable at 1,55v with cpu voltage set at 1,18v), but you do not need to hit the max possible, considering that you are unlikely be willing to replace the cooler of your cpu.
1. Read the mentioned guide in detail;
2. Then boot into bios;
3. Save current bios settings;
4. Set the OC option to Manual;
5. Find multiplier and BLCK options (set it to x40 and 100 respectivelly);
6. Save the settings and reboot;
7. If it boots successfully test cpu stability with the mentioned software in windows.
8. If it fails to boot – restart, boot into bios and reload the default settings you had from the bios and you are back were you started.