Hello guys, as you may notice I'm new here and I don't really know much about overclocking. I've got few questions.
I've searched already and people say that it's normal to use 1.35-1.4V for 24/7 use on air. The question is does it matter which cooler do you have? For example I have pretty decent cooler - Noctua NH-D15, does that mean that I can do like 1.5V without problem if temps are low? And also should I use LLC? Thanks.
Hello guys, as you may notice I'm new here and I don't really know much about overclocking. I've got few questions.
I've searched already and people say that it's normal to use 1.35-1.4V for 24/7 use on air. The question is does it matter which cooler do you have? For example I have pretty decent cooler - Noctua NH-D15, does that mean that I can do like 1.5V without problem if temps are low? And also should I use LLC? Thanks.
1) Keep temps under 80s'C for general use. Keep it under 90s'C for short term benchmark.
2) Max of 1.5v for overclocking use (lower if you want to keep this cpu for a while or plan to resell/reuse it in the future)
3) Max of 1.55v for short term benchmarking
However, I'd suggest don't go over 1.40v-45v for 24/7 use, depending on your cooler. You probably need water cooling for 1.40v and up because the heat likely increases exponentially. If you have an air cooler, you're probably going to see 1.35-1.40v as your max due to heat.
1.35v is what I used everyday. 1.4v is starting to get a bit high and hot. I don't know how your CPU clock but at 1.35v mine was doing 4.9GHz. It needed 0.05v extra voltage just to get 5GHz... 100Mhz more and much more heat. At around 4.7-4.8GHz I noticed it required a rather large bump in voltage for not much more performance.
At one point, you have to decide between extra performance and power consumption (safety also).
My CPU survived 1.52v a few times (watercooled) although. They can take a lot but so far I don't think anybody can clearly say what is safe and what is not in particular over a long period.
The 2600K is a 32nm CPU so it can tolerate more voltage than 22nm and 14nm CPUs, provided you can cool them to well within their throttling threshold.
For example I have pretty decent cooler - Noctua NH-D15, does that mean that I can do like 1.5V without problem if temps are low? Yes, but depending on temps, probably only for short bench runs. If you can maintain good temps under 70C, it should be good for longer gaming or work durations. Again, this is a 32nm CPU and much more hearty than the fragile 22nm and 14nm ones.
And also should I use LLC? Yes, to avoid any wide voltage fluctuation that will add to instability.
My 2600k runs stable @ 4.6GHz, 1.375V in bios, max load temp in Asus Real Bench stress test is 60, I've set LLC to Medium. Should I for increase voltage? I want it for everyday usage, SpeedStep is turned on and Turbo is turned on too. I don't want this kind of frequency all the time. Thanks
My 2700k runs at 4.6 with a peak of 1.32V (with offset) Temps max at 60c in IBT with a D14S. Idles at 0.9V - Offset OC is my fav low stress method for 24/7 use.
That was for the summer with a 25c ambient, 27c cooler intake temp. Winter is here and room temperature is starting to go below room temperature. 5.0 for Xmas? Maybe.
Hello guys, I'll ask here if it's not a problem, I don't want to make a new thread. I'm in the same situation, got 2600K with P8Z77-V LX. I've set LLC to High, Voltage in bios 1.3, during load it drops to 1.2V. I didn't check it with Prime95, tested with Real Bench for 1 hour and I was playing games and rendered one or two video yesterday, no bsods or anything like that. I'm aiming for 4.7-4.8GHz, but for example for 4.6GHz, cpu needs at least 1.38V in BIOS, 4.7 and 4.8 will need over 1.4 for sure. Is it okay to use voltage over 1.4? I have SpeedStep on, my motherboard doesn't have option for C-States. Also should I keep LLC set to High, or should I change it to Medium for 24/7 use? Also I'm using Manual mode for voltage and my CPU cooler is - Noctua NH-D15. Thanks.
Strongly recommend using offset voltage for 24/7 overclocking. Fixed voltage over 1.4V wouldn't be my first choice for 24/7 use, but with offset voltage and not running full load all the time, maybe. The higher the voltage (and freq), usually means higher LLC. But, depends on mobo too.
The 32nm Sandies are tough. Intel states a max VID of 1.52V for Sandybridge. However, Intel's specs also state 1.35V as max vcore....so anything above that is YMMV. Overclocking is the personal balance of stability and safety vs performance.
What are your temps in the current config? Above 1.4V expect the overclock will be temp limited.
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