I5 2500k ASUS Sabertooth P67, need help with easy OC

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baybiz85

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Apr 24, 2011
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I am a total beginner to OCing and want to OC between 4.5ghz and 5ghz as easily as possible without any problems. I have done some OC research but still need a guiding hand.

i5 2500k
ASUS P67 Sabertooth
8gb DDR3 1600
Asetek 550LC Liquid Cooling w/ Dual Enermax fans (push pull)
EVGA GTX 560 Ti (Factory OCed to 900mhz)

Let me know if you need any further information.

Thank you in advance!
 
Solution

VCCSA should be 0.925v (CPU default). You don't need to raise that unless you are going to try BCLK overclocking.
VCCIO should be set at 1.05v (CPU default), as the increase isn't likely to affect the overclock at that low a speed.
CPU PLL at 1.9v may be required, but leave it at the default setting and see if it works first.

For me, none of those settings needed to be increased for me to get my 2500K to 4.8GHz.

BayBiz:
I would do steps 1-5, then skip straight to step 9. If that turns out to not be stable, then change the CPU PLL. The other voltages listed shouldn't need to be changed at all.
so I got my computer now and at first I ran into some crazy problems with everything still at stock like freezing and bsods and restarts but I seemed to have smoothed everything out and now I have left everything at auto and pushed the multiplier up to 42 just to see if it would be ok and it seems good. Running prime blend test @ 4.2 and the max temp im seeing is 57c. Should I just take what I got or should I push more, Im scared because of how the system was when I first got it.
 
also auto is setting the voltages at around 1.28 to 1.29, isnt this a bit high for a 4.2ghz clock or is that fine? prime passed the first round of testing with no issues at all it seems but I had to turn it off because my windows are getting worked on in my house and its by my comp so I had to move it. how long should i run the prime to know its fully stable and does prime stress your gpu as well?
 
The average voltage for 4.5GHz is 1.3-1.35v so you're right in line with that.

If you're going to continue to increase the speed, just run Prime95 for an hour or so to test it out. Once you've achieved your goal speed (whatever that is), then as a final check I suggest 24 hours of the Blend setting.

I actually do this:
24 hours of Small FFTs.
24 hours of In-place large FFTs.
24 hours of custom Blend testing 11264MB (my system has 12GB).

Most people don't have the patience for that.
 
As long as your card has an adequate power system and isn't overclocked/over-volted beyond its means, the risk is minimal. The 560 Ti reference power system is good enough.

If you don't want to try FurMark, you could always run the software from EVGA called OC Scanner. It has a stress tester and an artifact detector, so you can tell when an overclock really is stable or not.