Tried 4.5ghz and voltage @ 1.3v wouldnt get past BIOS and shut itself down. Tried 4.2ghz @ 1.270v and died on the 6th pack of intel burn test on maximum stress. So I figure 4.2 is within touching distance but realistically whats the voltage estimate for 4.5 and would it be a safe operating voltage i.e 24/7. Bare in mind I will be reapplying new thermal compound.
You can push the voltage up to 1.45v with decent cooling. You're running pretty low voltage so that looks like whats stopping you from pushing any further. The best way is to just keep increasing it slowly till you find a stable over clock. Some thing to bare in mind as well, it's been said on here a 1000 times is not all CPUs are the same, some will overclock much higher than others.
Varies from chip to chip. You won't need to use dangerous voltage for 4.5Ghz, so I would suggest just upping the Vcore until it is stable at that frequency. If you're not happy with the temps after some stress testing runs, then just back it off a bit. Tbh you shouldn't have any trouble hitting 4.5Ghz on air with reasonable temps, so long as your cooler isn't complete doggy poo. Edit - Damn, ninja'd twice in one afternoon!
Ok well basically, I want to know what is or should be the max voltage for 4.5ghz and expected temps for 24/7 operating as I will not want to exceed this.
There is no definite answer to this, but as a guide line 1.45 is usually the safe max voltage. You could start there get your overclock to where you want it and then reduce it slowly until you're no longer stable, sort of backwards overclcocking.
Ok lets say I want to stay ultra safe, could I have a max threshold of about 1.325v? would this sort of voltage do any long term damage? wouldnt risk 1.450v
Think im on 1.35v for 4.5ghz. I found downclocking the ram massivley helped stability. Otherwise I need more volts
Mine when stressed is about 1.36V for 4.6ghz after vdroop. I got there by sticking it on auto, putting multi to 45 then stressing, that gave me the highest voltage i needed for 4.5 from there dropped it and tested it until I got back down to where I am today.
So 1.35v or there abouts, should be no issues a safe 24/7 voltage? If so il try and use this to see what I get
Safe is whatever you want it to be. But it's already been said that 1.45V is a good general running limit, if your cooling can handle the heat, then you'll be fine. I've gone to 1.58V for guaranteed stable benchmark runs @5.3GHz though.
If your cooling can take it you can take these chips well over 1.45v but for day to day on what can be considered ample cooling (decent air etc) 1.45 would be my absolute maximum.
in your gigabyte bios change the cpu pll voltage. at standard it should be 1.8v. for more stability at higher clocks people and myself have achieved higher clocks with this set lower. i have mine set to 1.620.
Yes you should lol it won't damage anything. Don't go over 1.9v with it. Default is 1.8. Like I said drop it down abit as the lower it is the more stable at higher clocks
I think the max Intel state is 1.98V, though as jizwizard says, sometimes lower is better. In case you're wondering it stands for phase locked loop and does some fancy voodoo magic with your bclk and multiplier and the error margin involved in there somewhere.
Iirc mine's set to 1.335v at 101.1x45. Currently, when running IBT it hits just over 60c. If I try to increase the ratio, I get 'more vcore' bsods (x000124 iirc). When I first got this cpu I pushed it to 5Ghz with the voltage set as 1.5v and it idled at 70c - not good, but it ran! I tried to get it stable at 4.8 after finding it ran a few tests okay but it seemed to be more miss than hit and the bsods started up. I might try again and *lower* the PLL rather than raising it
Blue screen 124 doesn't mean its always the v core on the sandy,s could be pll voltage or the other one that I've forgot to remember. Mine would not stay stable at 5.3 until I dropped the pll down to 1.620v
