Brad,
I have the same board, but with a i5-2500k. Going to 4ghz with your setup is pretty straightforward. First, you want to make sure you have a few programs installed to monitor your system when overclocking, the three that I use are RealTemp, cpu-z, and prime95.
realtemp is to get an accurate read on your cpu temperatures.
cpuid cpu-z will give you an overview of your system devices.
prime95 is a program to stress test your system.
If your using the stock cooler a 4ghz overclock should be fine but you always want to keep an eye on temperatures when your stressing your cpu during testing, but don't worry your cpu will throttle down if temps get too high.
There are a plethora of settings in the bios but all I changed were two, the turbo ratio and cpu voltage. I set the turbo ratio to "by all cores" and the ratio to 40, on the attached images it shows 42 because I'm at 4.2ghz. I set voltages to manual and set it to 1.120 to start off with. If your pc crashes it is usually due to under voltage, and all you should do is enter bios again and raise the vcore, or cpu voltage, incrementally by .005, to 1.125.
Open up cpu-z and realtemp, then fire up prime95 and run a torture test and monitor your temps and frequency ( overclock ) to make sure your running at 4.0ghz. A lot of people run the test for 24 hours to assure stability but I couldn't wait that long and ran it for a few hours. The true test was running dcs, if my system crashed I would up the vcore by .005.
A few notes: I use a COOLER MASTER Hyper 212 Plus with one fan and I have my system overclocked to 4.2, and my cpu temps are ~52c at full load, and my vcore is 1.195.
In BIOS under memory timings I made sure the timings were the same for my ram.
Another thing to keep in mind is your system power options in the control panel, I have two, balanced and high performance, under the advanced settings you can set the processor power management state to a min and max setting. So ,if you ran cpu-z you might notice your cpu running at 1.6ghz, then at load it should go up to 4.0ghz, if it is always running at 4.0ghz then your power settings are probably set at high performance.
When I ventured into overclocking I did a ton of research online before I touched my bios but in retrospect I changed very little and my mother board and cpu run like champs, a 4ghz overclock and even a 4.2 are mild. I consider myself a novice so someone might have a better method or insight into overclocking but this worked for me.
I attached some pics of my bios settings.
Good luck,
Miguel