TIPS FROM A TECH:
*There are few, if any, games that will benefit from overclocking this CPU (unless you have a high-end CROSSFIRE/SLI setup).
So before I comment on overclocking, let's be clear:
1) overclocking usually breaks the CPU low-power profile so you'll get more fan noise, even in Windows
2) overclocking too high on some CPU's can actually disable one of the cores (haven't checked this one, probably drop to THREE cores around 4.3 to 4.5GHz)
3) RAM can be accidentally overclocked as well when overclocking the CPU resulting in stability issues.
**CPU overclocking:
1. peruse your motherboard manual (note: some motherboards have AUTO configuration features that are easier than others. the following is a MANUAL approach)
2. Change the BASECLOCK and CPU MULTIPLIER to get the desired frequency (i.e. 200MHz x 21 = 4.2GHz)
3. Verify RAM is still the proper frequency. If needed, adjust the RAM MULTIPLIER so it's correct again (i.e. 200MHz x 8 = 1600MHz)
4. SAVE, REBOOT and run MEMTEST ( www.memtest.org )
SUMMARY:
- overclocking provides no benefit to most or all games with this CPU
- will increase fan noise slightly (even on H100) in idle
- overclocking too high can actually disable one of the cores (not sure of details for this CPU)
*My advice is keep the stock settings which work great and keep your system cooler. If you have need of overclocking (converting video?) consider just doing it temporarily.
I've tested the benefits of overclocking extensively on many, many games with an i7-860 and GTX680 @1300MHz. I found just a few games that worked better but with your CPU there would be no advantage.