Explaining Load-Line Calibration (LLC) & Not Killing Your CPU
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- Опубликовано: 21 авг 2024
- Buildzoid joins to define load-line calibration in motherboard BIOS, then talks about how to ensure you don't kill your CPU with LLC.
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Thanks Buildzoid... LLC is much more clearer to me. Perhaps staying clear of Vcore measuring software is a good idea.
I wonder if a Vcore multimeter must be available to fit into the case (in a drive bay perhaps) measuring directly from the board?
I'll second the thanks. Something I've found confusing in the past is some motherboard bios's have values for that setting going from say '1' to '5', and there is no explanation in the manual of what value is what LLC level. And some have '5' as the extreme and others '1' is the extreme. So an o-scope is a must, and thas a lot of work. Too confusing with too much potential for bad results otherwise, so I just leave it at 'auto' lol.
Great vid GN crew, B)
I recently bought Gigabyte z390 Aorus Elite motherboard but i'm new to OCing. Buildzoid said in this video i should go Medium with LLC but i read that I should go Turbo since it is closest to "static". What are Your thoughts on this?
@Gamers Nexus This Video is wrong. Buildzoid made a follow up on his channel ~6 months ago which explains why - so i recommend you to take that one down and ask him if he could to a new version of that.
Yesterday I learn gigabyte’s offset mode. But it suddenly gave my 10900k for about 1.468v~1.5v while I running FPU. Once I found it I suddenly stop the FPU
And then turn off the PC. Will it damage my 10900k in 1.468v~1.5v in 1 second??? I’m very sensitive about voltage
NOW im 1.23v~oc 5.0G daily use
but Will it damage my 10900k in 1.468v~1.5v in 1 second???
I’ve watched this video many times over the years because it’s by far the best explanation of power delivery to cpu on YT. Don’t let the improvised style fool you; the quality and clarity of information is exceptional. There’s no one like Buildzoid.
Just so everyone knows, Der8auer discusses LLC on Maximus boards -- do not let it go to auto, switch to LLC 5 or LLC 6. I was overclocking my 8700k and auto LLC was giving me 1.42 vcore rather than 1.39 vcore at "auto." I switched to LLC 6 per Der8auer's recommendation, and load voltage is 1.38, 1.375ish, and my temps dropped 10 C.
Jack Reitman yes im using the maximus x hero too, and i set LLC 6 and i nerver saw a peak increase voltage anymore. Im using 8700k 4.7 ghz with 1.15v
I like level 6 the best too, it's a tad over the "flat" but level 5 is a bit under the "flat" at most my chip will go up from 1.42 to 1.44, though it's only under the heaviest loads.
I️ have Maximus X z370 as well and I️ say 5 or 6 is good. I️ run 6 at 1.37v for 8600k at 5.2 all day. Peaks at 1.375. Really though I️ think level 5 would be the ticket for 1.45 but that’s just me.
Are you using ''adaptive mode'' ? my voltages goes crazy in adaptive mode like 1.36v but if i keep it manual it stay low 1.28v :S
Rog Maximus X hero with a i7 8700k stable at 4.8ghz 1,28v cache ratio at 42
Good stuff. More people need to watch this. It's insane how auto overclocks will force 1.5+ vcore like it's normal. It's insane to think that motherboard manufacturers think this is okay.
This video is extremely good. This is the best explanation of llc I’ve ever seen.
Congrats for this dude
Thanks
There is an older guide around, mainly focusing on Core 2, Nehalem and a slight view into SandyBridge, Not entirely fitting for more modern chips, but the base topic is still applicable.
25:35 best outro *_EVER!!!_*
wait you mean to tell that steve left the jumbled mess I told him to cut in?
I love how MSI has LLC settings that correspond more aggressively the lower numerically you go.
Agreed, it's confusing.
When I started OCing my 3570k i5 years ago I was stunned to find out that the vcore was all over the place. It took me ages to learn what the settings were doing and that programs such as hwinfo and cpu-z were both wrong. I finaly found someone recommend using a voltage meter and where to connect it. That's the only way I've been OCing since then: connect the multi-meter to the motherboard and use that.
You saved my CPU from myself 😂 Thank you so much !
Most overclockers understand LLC. Unfortunately of great importance in keeping CPU temperatures lower is VCCPLL [OC] and I have never seen anyone address this in a RUclips video. Nor is it widely accessible in written form. - Thank you for this video. It will help those who are new or not well educated in overclocking in particular. - Keep up the good work.
Those extreme LLC settings are typically on boards intended to allow for extreme OCing on LN2 and phase change cooling systems.
Best/Simplest explanation on CPU LLC I have seen so far. Thank You Sir.
Stop confusing people that VID is form the MB. Extract direct from a Intel manual: VID = Voltage Identification: A code supplied by the processor that determines the reference output voltage to be delivered to the processor Vcc lands. At zero amperes and the tolerance band at + 3-σ, VID is the voltage at the processor. This is the manual: www.intel.co.kr/content/dam/doc/design-guide/voltage-regulator-down-11-0-processor-power-delivery-guide.pdf
He actually does get things wrong quite often but tries to bullshit people with math that's not even accurate.
I like his video, it is very good in relation to his explanation about LLC. Easy to understand and very straight forward. But if a novice comes and starts checking his VID and sees that he cannot control it, then you fill up forums with questions like why can't I change my VID. TL'DR Vcore != VID, Vcore=Actual voltage delivered to CPU, VID=Voltage steps defined by the cpu manufacturer. @Qwertypp10 @#smokedoutpositivesquad
yeah you're completely right on that. VID is not the same as the voltage you set in BIOS. Unfortunately I don't really have any kind of editor and have a tendency to to over look some details. Like the fact that I used VID for my entire voltage table when it should have only been VID for stock settings or some motherboards AUTO will just follow the CPU VID as you raise clocks.
It is cheaper to follow VID for MB manufacturers. The problem occurs with Intel, at least for me, because they ramp up VID to insane amounts. If you want to stay stock with a K skew CPU you are lowering the life of your product. The example (real life) is a 6700k stock(no BIOS modifications/all auto) using a noctua NH-U12S has Vcore=VID=1.412V at full load(4.2 GHz), hits 80-85C. Same CPU can go to 4.2 on 1.19V, with a final temperature difference of 20C. I don't have AMD experience yet, but a video that explains Vcore and VID for both platforms would be very nice.
Bravo man, tare sa vad ca romanii inca se pricep la IT.😜
Very helpful, thanks a lot!
Ps: I don't think you're a bad presenter. You explain it well and I really like that you used drawings to support your explanation.
Glad to see you redoing this presentation for Gamer's Nexus!
I was nervous coming on here when i changed my LLC to level 5 from Level 4, and found i could reduce the Vcore by .4V Stable.
Knowing that the LLC by itself at medium settings doesn't hurt the life of my Mobo/CPU makes me happy, thank you for making
this video it was very helpful.
PC Specs:
10900k
RTX 2080Super
32gb G.Skill 3200mHz memory
ROG STRIX z490-A Gaming Mobo
.
MSI settings are Mode 1 to 8 and No OV at the bottom and also shows the graph similar to what you have drawn with Mode 4 looking flat. Mode 1-3 are above Mode 4, so Mode 1 is probably Extreme.
This truly aged like fine wine
Thank you very much for this. I once killed a CPUU and much later saw someone online mention you can kill your cpu with LCC. knowing that i used LCC to reach 4..8 on my 2500K that died i always suspected this to be the issue but....i was lazy i suppose and never looked into it. NOW i know AND i know how it works very well thanks to you.
informative and entertaining. thank you Buildzoid.
Thank you, that was very informative. It's the first time I finally understand this LLC thing thanks to your video!
Thanks for the introduction to Llc.
I was excited when you said 4790K, and then you went 8700K. :(
tenshi7angel sitting here with my fx8350 xD
I have 4790k and the only funny voltage i have is cache voltage. At 40 I manually set 1.16v and it put itself 1.2v and if i put 1.2v at 44 it put 1.25v.
Joel Gratton which MB ?
Maximus VII HERO
icndjfk nsbdbd sitting here with my 8370
Actually, THIS was the most understandable explanation ok RUclips so far
I learned a whole lot from this thank you so much. I was doing 6 on LLC in my rog board with a 8700k at 5Ghz with a Vcore of 1.295 and I was getting instability and high temps. I was super confused but after watching this vid I believe I don't have enough Voltage and my LLC is to high because from 1.295 it would jump to about 1.317 under load. So back to more testing for me. Thanks for the video I'm sure you've helped many others.
I follow both channels. Seeing Buildzoid on Nexus gave a serious WTF-moment. Thanks for the collab!
Best explanation of LLC every. The other area of crazy voltage is Multi-Core enhancement.
I don't use most low end boards, what an elitist ;P. Thanks buildzoid!
well to befair there is a better chance of the chip dying have to cool the vrm more and cant push the chip as far what kinda matters for benchmark and that is pretty much his main goal from what i can tell
To be realistic there are very few high end boards some mid-range a a shit ton of low end ones. So if he tried to test all the low end ones then he'd still be on z170 and not z370
If he is focused on non-stock use of components, then a low end board is always a bad choice.
Here is what happens if you overclock on a low end board. i.imgur.com/nEbVKkI.jpg Look at the 3rd mosfet from the left.
Overall, VRMs on cheap boards do not like overclocking.
Oof,, ouch :O.
i mean his job is to extreme overclock, so why should he? i get u thi
Nice one buildzoid lol thanks gn as well for putting me on to this guy I've watched a few of his videos and there very informal and he always try to keep it safe =)
Genius ad placement, Well done.
You didn't go overboard mate, you need to have a fundamental understanding of something to be able to understand why something matters. Really well explained. My last build was a 3770K system and it died due to a long overclock over years and I could of had better cooling but it lasted so damn long I wasn't doing anything too drastic, however this time around I'm building a $4000 AUD machine to run a 1440p 140hz ultrawide and I want to overclock better, and not destroy my investment, I was wanting a good explanation of LLC and this really was it.
I think this should be it's own channel. AWESOME video. Thank you for this very informational.
Wow I had asrock level set to auto which was level 4 I was bottlenecking 80%-99% for call of duty this helped I cut it in half and put level 2 now it’s balanced
Why would you want the CPU to idle at a higher voltage, if it can still be stable with a lower voltage?
because idle does less damage than load
Then the issue still remains, if the CPU at full load with a lower voltage is stable, then why not have that same lower voltage at idle?
The LLC at its most basic, does not seem to make much sense from a stability standpoint.
You can get that and it's called Vrise, but LLC generally doesn't work like that.
it's explained in the video but i'll try sum it up: it's to protect from the vrm spiking up when the load is released, and to avoid the dip when the load is applied that might undervolt enough to cause a crash.
vrms are NEVER instantaneous.
The spikes (up and down) are caused by reactance (resistance to change in current). When the load first comes on, the current takes time to increase. So for that moment, the same current running through a lesser resistance (higher load) results in a lower voltage across the load (core). So if the idle voltage was low (fine for idle) it would starve the core when was loading up.
This was a great explanation on LLC and how to use it wisely. I haven't done 5Ghz on my 8700K just yet so at the moment i'm at 4.8Ghz / 1.32v and is stable so far.
very to the point tutorial, thank you. my suggestion for home users would be dont let auto on LLC and set it to stock or lowest possible then start OCing your CPU. vdroop is there for preventing overshoots, even the medium LLC might have dangerous overshoots sometime to time.
Time to go back to Patreon. Quality stuff! Also subscribed to your channel Buildzoid.
I barely understand most of what buildzoid says but i love it anyway :D pretending like im learning stuff
Is this the video where BZ said he now retracts this info?
On Ryzen platform systems you get ridiculous vdroop with all but max LLC which seems to properly keep the CPU voltage (SVI2 in hwinfo, don't trust anything else) rock solid at whatever you set, as if it's using AMD's onboard monitoring properly or something while it doesn't otherwise. Someone's measured the socket voltage on his X370 Prime Pro and found that at LLC5 there's also no dangerous overshoot or transients that you might expect. This seems to be the case on my C6H also. Maybe something you could test in a future video?
^^^ I was about to ask the same question. With my Ryzen 1700X and Crosshair 6 Hero, I have to push LLC to level 5 (max) to prevent all vdroop, and seems like i get no vboost whatsoever (also followed the same sensors as mako did).
Yup, C6H here, LLC5 = flat voltage
C6H here with a 1700. LLC 3 gets me flat. You probably know so I'm stating for those who don't LLC1 = auto = stock.
LLC1 - Same as Auto - Stock
LLC2 - Low
LLC3 - Medium
LLC4 - High
LLC5 - Extreme
LLC3 is the sweet spot. Can get 4.0ghz at 1.4v
3.9@ 1.34375v LLC2 (Haven't gotten around to test LLC3)
But I pamper my CPU and run 3.8@1.225v LLC3. It does 3.8@1.275v LLC1/(0)/auto for reference.
All Aida64 tortured.
Bios Ver. The October one. 1702 I believe.
I don't do 4.0ghz coz I worry about the overshoot and the extra wattage. Save the trees and all that you know.
i can confirm that, my voltage stays exactly at what i set it while the vrm goes way above that when set to extreme (as high as 1,43 while setting vcore to 1,33), its actually super weird but my cpu needs the extreme llc setting to achieve a stable OC over 3,6 GHz in any case (even 1,45V at medium llc won't help)
Is 3.95GHz worth it at 1.4v? I was at 3.92GHz at 1.325v's and it was stable after EVERY test until I threw handbrake at it and it blue screened on an encode at 80% :/, I loaded BIOS and threw 1.35v's at the same frequency and it ran the encode and other tasks fine but with the stock cooler idle temps jumped from 35-37C to 40-45C so now I am back at 3.9GHz at 1.33v's. Off topic but yeah. On topic: I notice Vdroop but only when I am >1.35volts so I wonder if the sensors are jenky.
This helped me so much! Thank you so much for your work Buildzoid!
@GamersNexus #Buildzoid, Thanks for this video. I appreciate your wisdom. Fun factoid : I had subtitles on, and watched at 2.0 speed. I overclocked your presentation. : )
Dont trust the voltage readout from CPU-Z| or HW info, take multi meter reading from the back of your board near the caps will give you a much more accurate reading
This video is so impressively thorough. Thank you.
So vdroop is intentional to save the CPU from voltage spikes when going from (full) load to idle. Doesn't load line calibration - even at "medium" - counter that then?
Geronimo yes, it does.
You mess with LLC if you want higher ocs and are willing to take the risks.
At any rate, the short spikes aren't gonna be enough to do significant damage to your CPU, especially seeing as they last something along the lines of microseconds.
Geronimo if you set VID to max safe voltage then the spikes will go higher
LLC can be pretty useful when the system is stable under full load like gaming or rendering but rashes on lighter tasks. Clearly the starting point of the load line has to be higher to get the system stable, but the VCore on high Amps is fine. Tweaking LLC for a steeper gradient and slightly increasing Vcore can make all the difference.
Thank you, Buildzoid and GN !
Thankyou for making this video. I never new this about LLC and I will now be going into my UEFI and changing a few things.
Keep up the great work,
Nice vid, nice explanation. Was hearing about LLC and wondering what it was, so good to see a introduction. Also I like the whiteboard style presentation, easy to follow.
Thanks for that, I got an understanding of LLC now
Best explanation I've been able to find, Kudos!
Very helpful video, Thanks again GN!!!
You are one of the best tutorial makers i've ever seen
Thank you, I do not wish to learn electrical engineering and needed a quick lesson, thanks.
Absolutely awesome video. Thank you very very much. Especially the histogram showing the ripple and the spikes.
Great video - I find these technical topics very very interesting; keep them coming! :)
~2:20 Repeat after me: "Load line is (the shape of graphical representation of) Vcore as a function of CPU load"-
Well done guys high quality information as usual! Thank you!
This was so incredibly helpful. Thank you for making this video!
You have no idea how satisfied am I after watching that video after trying to understand non k oc on z170 lol
Dude thanks for the information, i have been searching the internet to understand what the heck is llc
Holy shit that was informative! I would love to see more videos like this.
Great explanation. Was a bit confused until watching your vid, thanks
Amazing video! I've allways found LLC to be THE most annoying and critical setup when overclocking, after you decide that your OC is stable using manual voltage, LLC will annoy you dropping Vcore all over again when doing adaptive. Setting LLC to fight Vdroop, and trying to keep Vcore as close as your stable value is Critical to maintain stability.
Thanks gn & buildzoid. This actually helped me a lot! Explains my insane temps. The asus prime b350plus mobo has LLC set to auto, changed it to regular. Voila! Lower temps!
Fundamental mistake. The load line shows how the voltage across the core will drop, given a constant source voltage, and this is used for BPM to equalize and compensate for this slope.
🙂 do we get Credit Hours for this? LOL 😊
Professor Buildzoid!
I finally know what this means entirely, many thanks.
I got all the info i needed about LLC from this video. Thanks Bro
Hello from the 13/14th gen Intel timeline
Samesies
Very nice, it would've been cool to have shown some screenshots of the different Makers of MB LLC setups on bios, but the recommendations are on point.
Thank you for this awsome LLC explanation. It's really helpful.
Thank you for this explanation, I've read a few in the past and this is by far the most comprehensive and informative, good job! I can finally say I understand LLC well enough to use it now. I have one question regarding LLC and the maximum voltage ripple you showed us on the graph of V over time. It seems that when a CPU is put under load or taken off load, we get some potentially high voltage ripple. Would enabling LLC not essentially undo the leeway that was intentionally left for such ripple, allowing it to potentially go over our maximum "safe" voltage, effectively undoing the very protection that was built into the CPU in the first place? It seems to me like if you're butting up against your voltage limits in the first place, this might be a dangerous move. I've never seen anyone comment on this fact. Thanks again!
superb video buildzoid. essential knowledge for oc beginners
On my old Ga-z77mx-d3h LLC has a weird quirk.
The LLC options are Norm > Stand > Low > Mid > High > Turb > Extre
When I'm on Dynamic Voltage the board is doing Vraise on Low but when I'm on Static Voltage I still getting Vdrop on Turb.
Here is the comparasion:
Bios DyV: 1.110v + 0.040v - LLC Low under load: 1.76v
Bios StaV: 1.255v - Idle 1.26v - LLC Turb under load: 1.248
I tested all LLC options on DyV here are the results (All software measurements):
Bios V 1.110 + 0.040
Under load voltages
Extre 1.248
Turb 1.224
High 1.212
Mid 1.188
Low 1.176
Stand 1.140
Norm 1.152 (Equal to Auto)
If you are not going close to max safe voltage due to for example cooling reasons, wouldn't it make more sense to stick to that lower voltage and try to get the most flat load line possible? That way instead of say 1.3v no LLC you can set up 1.27v with LLC?
I share your question as I'm running an 8700k with Noctua NH-D15 air cooler. Heat will be my limit.
I was wondering the same. I use lvl 3 (medium) on an ASROCK MB but my voltage is @1.2 for a 4.7OC. I'd also like to know how/if P states affect all this.
If you're overclocking then it pays to mess with the LLC, but if you're running at stock then you can just leave it at the default.
Might be a bit late for you all but here goes.
Was running an 8086k stocklidded and on a shitty cooler (h80iv2, 30 quid refurbed, don't judge me) at 1.185V Flat LLC (level 1 asrock k6) 4.8GHz and an AVX offset of -6. in a room where ambient sits around 21-23C with idle temps around 45C and 15min-20min P95 AVX benching bringing temps up to the early 90s.
Cinebench would also hit mid to high 80s easily with repetitive tests.
Gaming loads would peak at the early 70s at the most, late 60s average.
Stable in games and benchmarks though watching the results of stress tests live I could see the performance sometimes slowly slip downwards to a much lower level than initially, with a bit of wobble here n there, adding voltage would cook things and higher frequencies started to result in rounding errors in P95... hmmmm I say....
Night of tinkering ensue with the impossible task of trying to squeeze more performance and stability with no more heat gains... Now I have blown up a p5ql-pro before by tinkering with flat load lines in an effort to get more juice out of my Q6700. The made me rather nervous to do the same with my second P5 board, so I wrangled a healthy 3.33GHz overclock on the Q6700 without messing the LLC at all and that went like a train for 10 years, obsolescence came before hardware failure.
Necessity is the mother of all invention after all.
Fast forward to now this board has much heartier VRMs so could handle the pressure of a flat LLC, fear be gone and getting rid of that droop is the easiest way to get 'stability' if the VRMs can handle it, the lack of fear of boom plays a big part in laziness.
A wild Buildzoid appears and all becomes clear...
So we bring the LLC down to level 2. Crank the voltage to 1.250V and shed a little tear as we leave the Sub 1.2 club :'( But oho! We can bring the AVX offset down to -2 now :D
idle is at 1.248V, heavy load in P95 at 1.184V which has been running for 15 minutes as I type this and has thus far hit a high on one core of 84C, currently hanging around 74-76C. Now with the loop saturated we do some Cinebench and we get 1575-1580(firefox etc still open in the back ground) with 3 runs and the temperature hits a 84C high.
So in summary I get more or less 5C less heat from a higher voltage using LLC set to a lower setting, load voltage isn't any different from the flat LLC and I can run AVX workloads at a higher clock.
I would suspect the VRMs are a lot happier in life also.
Hopefully this jumbled mess of numbers helps someone.
Great video guys !!
Love your content !!
Keep up good work !
will be over clocking my 8700k in a few days ..first ever OC. Thanks for this video!
A really good explanation of LLC. Ty so much
Haha, love the outro buildzoid! Sounds like me when I make a video for my other channel. I swear I can speak just fine until I'm recording or have a camera pointed at me!
Anyways, good information. Without such information, I'd probably have fired my R5 1600 by now, when I started OCing it. New platform, first time with a decent top tier chipset motherboard as well. Asus X370-Pro. So when I got to the section of LLC, I was like, nope not touching that stuff til I read about it. Even after I did I only went LLC 1, cuz I was paranoid.
After more familiarity with the board, I pushed it to LLC3 and was able to get 3.9 instead of 3.8 out of my R5 1600. It's not the best chip out there, requiring 1.381v to hit 3.9. I got 4Ghz to run a Cinebench, but required 1.425 volts and wasn't stable. I don't want to push 1.45, and I did test the back of the socket with a multi-meter to see not only CPU voltage, but SoC voltage under load as well. LLC 3 seems to be pretty 'flat' (on this board anyway) as you describe it and didn't detect any transient spikes, but my multi-meter is cheap and it may not poll fast enough to even detect the change in voltage as I shut down IBT, or whatever I'm using to put the CPU to 100% load.
It's been a couple months now, and I feel I've got a good understanding of what I can do with my board and what I can't, safely. Thanks for taking the time to make videos like this so people like me can tinker safely without blowing shit up! I'm not rich, so I can't just blow things up and replace them. But I do love to tinker and learn, so it's a fine line for me and have to be cautious.
And, I do have proper cooling. I use a 360mm rad, which is overkill for the 1600, but if I ever socket an 8 core it'll do nicely for me. :)
Amazing learning from this video.
I am trying to 5950 on B550 Aorus master and was confused on the LLC settings and this has cleared it. Maximum setting is not always the best
Fantastic video. Funnily enough, I read an asus overclocking guide for my cpu (3770k) and they recommend setting it to extreme... with a 1.35v, which results in a huge vcore in cpuz. Huge.
So confused, Nexus' avatar, buildziod's buildziod......... awesome.
This helped me a ton with my new 8700k. Thank you very much guys.
Glad you made this video to give more details. I've been messing around with OCing for a while and I remember some Asus Mobo I had back with an i5 2500k defaulted to "Extreme" and I was always wondering why would they do that?
So I would also turn LLC to "normal" but now I know exactly what it's for, I'll be able to fine my CPU OCs even better.
Clean explanation
Great video. Helped me a lot.
One of the most informative videos ive seen in a while. Good Job Buildzoid!
I have played around with LLC on my z270 aorus gaming 5 motherboard and 7700k it did help me. i set my LLC to "Turbo" max now i keep a 1.26v at 4.8Ghz on full load.
Even tho I'm using a locked g4560 it's nice to know about these bios options and what they do. Thumbs up from me
Excellent video!
Just thought I'd share with Ryzen users.
I'm on a C6H here with a 1700. LLC 3 gets me flat (or at least what I consider flat with the VDroop of 0.026v which can be added to the overshoot buffer more on that below). I'm stating for those who don't know LLC1 = auto = stock.
LLC1 - Same as Auto - Stock
LLC2 - Low
LLC3 - Medium
LLC4 - High
LLC5 - Extreme (These are for the ASUS Crosshair 6 Hero)
LLC3 is the sweet spot for me. Can get 4.0ghz at 1.4v
3.9@ 1.34375v LLC2 (Haven't gotten around to test LLC3)
But I pamper my CPU and run 3.8@1.225v LLC3. It does 3.8@1.275v LLC1/(0)/auto for reference.
All Aida64 tortured.
Bios Ver. The October one. 1702 I believe.
I don't do 4.0ghz coz I worry about the overshoot and the extra wattage. Save the trees and all that you know.
Debauer mentioned that the peak volt overshoot happens for an instant and its so fast it cannot be measured so keep that in mind.
As for the peak volt overshoot after load stops I have a strong suspicion that LLC increases the amount of overshoot due to the MB having to feed a higher voltage to counter the VDroop. But I think of is as 3.8GHz @ 1.225v LLC3 vs 1.275v LLC1/Auto and I'll have a 1.275v-1.225v= 0.05v buffer during the overshoot.
Could there be a lower peak volt overshoot @ LLC3 1.225? Yes. I doubt it but at least I'll have that 0.05 buffer and the additional 0.026 VDroop for 0.076v total. Something you guys can consider if you wanna boost to the greater than 1.4Xv range for the magic 4.0 GHz.
At the end of the day this may all be pointless as the split fraction of a second of overshoot might just reduce your CPU lifespan from 50 years to 49 years and 364 days and if you count in leap years the overshoot might give you more lifespan in days if you count them in with LLC3 and calculate it not adding in leap days to LLC1 lolz.
Thankyou for this. I had no idea what it did.
yeah i can confirm that, the difference between my 1600 idle ~6A@1,33V and full load ~70A@1,43V is obvious (but needed to keep it stable at 3,8GHz, bad silicon :() at extreme LLC setting on my asus x370 prime pro which makes roughly 1,6mV/A positive slope. 1,42V is not dangerous tho, ofc i would not use it if my idle voltage would be nearer to the max, i had to figure that out by myself though and i'm glad someone made a video about it :)
Perfect explanation. I know what LLC is now. Thanks
Very useful info. Thank you very much.
MORE OF THIS PLZ!
Amazing video !
But does the 1.45v->1.57v LLC@extreme usually show in CPU-Z ?
CPUZ shows only vid, - voltage that VRM pumps to your CPU, the voltage you set in BIOS, to see core voltage you need HWINFO64 it has both readings.
Qwertypp10
alright thx man
I would really like to know that too...
dont trust software or the sensor its reading if you really want to know what you volts are you must probe the back of the socket. in other words it doesn't matter what cpuz says, its almost certainly wrong.
with my setup, cpu-z shows vCore not VID. the change in voltage shows when load is applied
Very well explained! thanks!