CPU & GPU Overclocking Recommendation?

[Ownaholic]

Hey all!

Love this site, really helped me get my build together. =]
I'm proud to say that I am typing this on my brand new custom-built compy, but now it's time to get down to some srs bsns and overclock.

Before I talk further, here are my specs for reference:
i5 2500k @ 3.3ghz
Asus P8P67 Mobo
Asus GTX 560 DCII Graphics Card
8gb ram
Corsair 750w PSU w/ over and under protection

I used the EFI bios on "EZ Mode" and selected the highest "factory overclock" available. However, I'm a little unsure of how to take it further in the advanced settings. And oddly enough, even after changing that and saving the settings, it still is saying that I'm running at a mere 3400hz. Did all that setting increase do is give me an extra 100hz?
I would like to see 4ghz, if possible. How far would you recommend I take it; and how would I go about doing it? (As easy as EFI bios is, I was still unable to find the right settings in Advanced)
Right now my CPU is around 60C.

On to the GPU; I already know how to overclock it, since I have SmartDoctor. However, how far should I overclock it?
Right now on factory settings, I'm running at 38-40C.

Bear in mind, I really don't want to OC all that much, since I know my CPU and GPU are relatively solid to begin with.
I want to go as high as I possibly can, but without going anywhere near "too hot". Just something reasonable for stock fans. "Small-Moderate OC", is likely the best wording I can offer. I just don't know what is considered small-moderate OC for both the CPU and GPU speeds / temps.

I'm using the stock CPU fan, and my case is an NZXT Apollo with two 120 fans: one in the back, one on the side-window. I do not plan on upgrading fans whatsoever. (I consider it a miracle that I was able to even able to build the computer to begin with, haha)

Thanks a million!

 

[jonnyp11]

for 4ghz you'll need a quality cpu cooling system, but stock coolers could get you to >3.6ghz i think, but you won't see too much performance increase, i mean this setup should max everything stock clocks.

 

[Motox20]

Yup, anything above what johnny said requires a quality cooler. My cooler is great for it's price, keeps my AMD x4 3.2GHz OC to 4GHz at around 34ºC idle and barely tops 50ºC under load.

http://www.newegg.com/Product/Product.aspx?Item=N82E16835118019

As far as OC'ing the GPU, do it in 5-10 increments and stress test it. Once you see artifacts or tearing bump it down to the previous level and keep it there. You could bump the voltage a bit to see if it stays stable after you see tearing but some people are against that. It just depends on how comfortable you are with doing it.

If you want to see any real performance increase to even justify OC'ing, go with a quality CPU Cooler, no way around it. When I built my comp(in sig) a month or so ago I knew I'd be OC'ing my CPU so the Cooler was a must have for me, especially considering that I'll be upgrading to a BD 4 core not too long after they're released(maybe a six haven't decided yet). It's possible I'll get a new cooler but this one was cheap enough and good quality to not be an issue.