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Need some info to know if I've reach the max OC that my I7 2600K can handle.

post #1 of 38
Thread Starter 
Hi OCN,

I'll get right to the point, using my Sig Rig, IF I dial 4.5 Ghz (leaving the voltages settings to Auto) the PC boot up, wait a moment, reboot, wait a moment, then reboot and say that it was unstable.

I can get it to 4.3 Ghz (that is the Turbo setting), been able to boot @ 4.4 Ghz but it's unstable.

Does it means that I cannot go higher the 4.3 Ghz, maybe 4.4 Ghz with a little tweaking?

Best regards,
    
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post #2 of 38
It just means you'll need to set the voltage manually. That chip can almost certainly do 4.5 (probably around 1.35-1.37V), just maybe not on Auto. Did you load the optimized deafults and then just change the turbo multiplier, or did you use some kind of auto-tuning feature on the board? The first method should work (the optimized default/all auto method) but the second may not.
post #3 of 38
Thread Starter 
I've disabled some of the features that are mentioned often. It's a Rig that I had OC before and now I've just got back to start again (to do it rock solid this time).

IF I trust Core temp, the current VID (on Auto setting) @ FULL load is mentioned to be 1.36V for 4.3 Ghz. (knowing that Auto tend to ramp up the voltage for "nothing" ...)

My temps are fairly good, the cores peak at 57C, 61C, 62C, 63C max load after 36 passes of Intel stress test; therefore I could bump up the voltage a bit and see.

NB: I've disabled the LLC since it was causing more issues then anything else.
    
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post #4 of 38
i've seen reviewers of cards get 5.0Ghz with that card. although i have no expertise on the matter.
post #5 of 38
Thread Starter 
I know, I've got a manual from someone here (OCN) that helped me a lot to really tweak it...

Could be the chip I'm using, the PSU or the board that is the limitation.

I currently want advice or hint to see more clearly in the matter.

What is the max "safe" voltage for this chip... I've read often it was around 1.400V; can someone confirm?

TY to all.
    
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post #6 of 38
1.4V would be no problem for a 2600K, and most people would feel okay with 1.45V (depending on the speed, at 4.8 yes but at 4.2 no). Temps become a big factor as you start increasing the voltage though, so be sure to keep an eye on them. Try to keep them in the 70c at full load with Prime95 or IBT.
post #7 of 38
4.5 should not be a problem for a 2600k... i got my 2600k at 5 ghz with 1.35 volts, so i believe you could go higher with some manual tweaking tongue.gif
post #8 of 38
Thread Starter 
Right now IBT give me max (peak at) 60-63 C (normally around the 60C margin) after 50 passes non stop so I'm fairly away of 70C.

IF Core temp is right I was using 1.36V, I think at 1.4V I could be around 70C at best. Could be wrong doh.
    
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post #9 of 38
Set the voltage to 1.35 and set multiplier to 45, temps on mine are 69C after several hours of Prime95. That's all I did straight out of the box.

I didn't even bother to tweak any further than that but I'm sure you'll squeeze more the longer you tinker with it, good luck thumb.gif
Meh
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post #10 of 38
Thread Starter 
Quote:
Originally Posted by Kane2207 View Post

Set the voltage to 1.35 and set multiplier to 45, temps on mine are 69C after several hours of Prime95. That's all I did straight out of the box.
I didn't even bother to tweak any further than that but I'm sure you'll squeeze more the longer you tinker with it, good luck thumb.gif

I'll see if it will pass the Bios point with those settings.
    
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