Bitcoin Forum

I'm wondering.
One of my rigs is a 5x1080 (EVGA Superclocked).

Whatever I do in terms of overclocking seems pointless and leads to the same clocks because the cards are power-throttling.

Whether I add a fix offset (eg +100), or raise the curve, I have the feeling it makes no difference at the end of the day because the cards will only boost as far as the (ridiculously low) power limit will allow at the current GPU temperature.

You need to find the reason for the trottleing. Sometimes it can help to reduce the tdp of the card to f.eks 80%. Then each card will draw less power and generate less heat, and can be clocked higher.

Have you got enough powerful PSU? OC in general is very efficient.

Yeah I've got plenty of overhead on the PSU (1000W Gold powering 3 of the cards, 750W gold the other 2).
I've steepened the fan curves so the temps are in the 60's under full load.

What I'm saying is it pointless to do a manual OC. The card will boost as high as the power limit will allow anyway.

Unless I'm missing something.

What are your hashrates? Have you compared them with crypto benchmarks sites?

Yep, they're right up there. Which basically seems to support my assumption.

OCing on Nvidia hardware is fairly easy.

Higher TDP > higher voltage > higher top OC > higher temps
Lower TDP > lower voltage > lower top OC > lower temps
Lower temps > higher stable boost clock
Don't crack up your fans to 100%, it's not good for their life span. I run mine at 70% which makes them rather quiet (depends on the manufacturer).
You shouldn't go above 100% TPD on your cards. Don't touch the voltage. If you go above 74C the cards will start throttling down. Nvidia cards are very temp sensitive.

OC only memory if you mine ETH, lower TDP to 50-60% (check your hashrate, 50% TDP is too low for my cards but 55% is enough).
OC both memory and GPU if you mine a coin which can benefit from both.
Experiment, try this, try that, see what's the best.

I have been working with hardware for over 20 years. It still took me 2 weeks to find the perfect OC/TPD/temps for my 2 rigs.

Haha, I would ignore you if you weren't so clueless!

My friend, I'm happy to report I'm on the sixth spot for Time Spy scores on HWbot for water-chilled scores. First if you take my exact hardware combo. Here, see for yourself: http://hwbot.org/benchmark/3dmark_-_time_spy/rankings?cores=1#start=0#interval=20#coolingType=5

I've power modded my card with liquid metal, chilled it with a Hailea chiller, and benched that run with the water at 4C.

I know damn well what the fuck I am doing, you retard.


So, now that we've got this over with, let's get back to topic.

I'm basically agreeing with Nebell on this. It's a fine-tuning exercise, depending on what coin/algo you're going to mine indeed. But for those (the majority on nVidia - except for Equihash mostly) that are core-clock dependent, you'll find yourself power-throttling in most of the cases.

I'm not running my fans at 100%, no, I try to keep the GPU temps in the 60's though (with limit at 79), so fan speed will usually sit around 60-75% depending on ambient.

I've increased voltage limit, so I can be sure there's no problem there, but I've indeed left TDP at 100%. Increasing it will increase clocks a little, but not really worth the while at it'll have a negative effect on power consumption and heat.

As I'm using an auto-switching miner (Nemo's), I found it to be the best short-term compromise. I would probably be able to fine-tune it to be a little more efficient TDP-wise, but tinkering with clocks actually yields nothing as the power limit will kick in anyway.

So because you maybe don't know how to OC your card for mining or if your card is maybe not good for OC you think that OC in general makes no sense for NVidia cards? very interesting :D

Can you explain me why i get 25 MH/s @ 180W with my GTX 1070 at stock settings and with good OC values i get 29,5-30 MH/s @ 125-130W? That's somehow not confirming your statement, isn't it? ;)
(the same btw. for Sol/s - without OC it takes more power for less Sol/s)

Come on, read my posts again. EThash and Equihash are memory-speed dependent. Obviously they don't fall into the same category.

I've made my case, and I rest it.
Now you've obviously been called out so you're just being even more idiotic by not addressing my points and throwing out more pointless insults. That's going to bring you far in life. Keep "rocking da house" with your 18 GTX1080Ti's and come back to me to talk about your penis extension.

I should stop arguing with dimwits, they just drag you down to their level eh. Posting pictures of turds, ad-hominem arguments, insults... How wonderfully mature this place has become.

Go to school kid. You might learn a thing or two.

EDIT: dimwit now ignored.
EDIT2: just noticed dimwit registered in 2016... and he's calling people who were mining back in 2013 "noobs". Epic.

Well you are the school kid that proof to be the OC pro and failed to be :-D
Just hit the nerve did I? Oh poor boy

Come on, read my post and try to understand - i wrote about MH/s (e.g. ETH mining) and about Sol/s (e.g. ZEC or HUSH mining) - so also core clock dependent currencies and it's a simple fact that with good OC values i was able to gain higher Sol/s with lower power usage at NVIDIA cards.

About what category you are thinking now where OC wouldn't help? At least not the most common ;)

I'm not saying o/c wouldn't help, I'm saying manual o/c doesn't (i.e. increasing clocks like +150 for example). GPUboost will basically go as high as it goes given the TDP, voltage and temp limits you're setting.

I've got two 7xAMD RX570 rigs mining ETH. I've fine-tuned them with special memory straps, undervolted the GPU cores and found a good clock+mem speed combo that will give me 28.5 MH/s + 710MH/s DCR.

On Pascal cards however, I've found tinkering with core clock speeds pointless (because of the behaviour of GPUboost).

lets us try to understand you a little better.

How about this.  

5 cards  do what in mh for eth.  

what are you exact clocks

what is your exact tdp?

what do you draw at the wall in watts?

what is you power cost?

I understand the idea of maxxed mh for a card means more coin.
It seems that is your method of mining  getting max mh  and not caring at all about watts.
Am I correct?

You proved already that you have no clue about manual o/c NVIDIA cards, no need to repeat your alternative facts ;)

The facts which can be measured and proved show that you gain performance and lower your power consumption with good manual O/C at most (i guess nearly all beside yours of course) NVIDIA cards.

I'm trying to strike a balance.

Not mining ETH as I have 5x 1080's (non-Ti).

Clocks will usually move between upper 1800's and upper 1900's, depending on load/algo. They will regularly hit power limit and throttle down.

TDP @ 100%

1050W at the wall for the rig

$0.15 per KWh

As said, trying to strike a balance to get max coin at "acceptable" power draw.

Well, that's why I'm typing here, so that you can enlighten me, Master Iamnewhere [smile]

Wasn't it you who said he is pro of OC and enrolled his virtual penis extension of HWbot claiming how cool and good he can OC .. rofl you are one in a million turd.

I've got weird feeling that you are trolling us...
You didn't tell us what hashes you get, didn't even post one screenshot and now you're claiming that you've got 6th OC in the world

Ok my friends, now I'm getting a weird feeling that many more people than I thought here actually have no clue how GPU boost 3 actually works.

For Pascal cards at a given temperature with voltage limit maxed out, the only variable here limiting your clock speed is power limit. This is because your GPU will only boost as high as your power limit will allow. This is why I power modded my 1080 in my pc by applying conductive liquid metal to the shunt resistors and the flashed it to the ASUS bios that allows 1.2V (as opposed to the FE max voltage of 1.093).

This is why I was able to push my gpu to 2303 MHz in Time Spy.

So no, fellas, I'm not trolling you. That top score on HWbot is mine. If you look it up on Futuremark's Time Spy leaderboard you'll see it. My username there is mikethedragon. Look it up.

So I do know pretty damn well how the pascal GPU overclocking works, trust me.

And this is why I am saying that most people here who set fix overclocks on pascal cards probably don't know what they are doing because it's effectively their TDP setting that will dictate the clocks they run at, not the fix offset they put on. GPU Boost will go as high on the curve as the TDP limit will allow it to go before it throttles.

Now I'm asking every smartass out here again: why are you setting fixed clocks when mining? And please don't ask me again what my ETH hashrate is. If you had paid attention in the first post, you'd understand why I'm not mining ETH.

PS: oh and if I could restrict this thread to adults as opposed to pre-schoolers posting turds I'd be thankful!

Let's assume you have great cooling and aren't being throttled by temp...

Try setting a power limit of say 70-80% with a +250 core clock and take a note of the hashing performance and core clocks and power draw etc.
Then try a default 100% power limit and no core boost and see what the differences are

Report back with your findings :)

My god this really is a trash can of a place. It took 13 hours to get a decent suggestion just to be topped by another plonker throwing out insults.

1080ti EVGA SC

total stock; 750 sols
72% TDP; 650 sols
72% TDP & +75 core; 680 sols

AFAIK, when you limit power, yes it disables the dynamic boost and reverts you to 'base' clock. So you have to then apply a core increase and test to find available OC headroom.

what the fuck is this thread??

its already been proven countless times that nvidia overclocking does not work because of stupid efficient power throttling. whats the big fukin deal here????

My 1080 Ti's say differently. If I set power limit to 60% I get around 1500MHz. If I then add +150 to the core, the core clock increases 150Mh to around 1750Mhz. Do that on 4 cards and you are effectively getting a 600Mhz boost and the results are in the MH/s the miner is reporting.

With GPU boost the freq does jump around here and there but usually not more than 50Mhz.

OK I'm a smartass. My cards don't throttle when I raise the clock so I get a directly proportional increase
in hashrate with all other settings, except fan, stock. As the first reply suggested, you need to find out why you're
cards are throttling.

But it seems you're mind is already made up, it just doesn't work. So why should anyone bother discussing it
intellegently with a closed mind?

its already been proven countless times that nvidia overclocking does not work because of stupid efficient power throttling. whats the big fukin deal here???

its already been proven countless times that nvidia overclocking does not work because of stupid efficient power throttling. whats the big fukin deal here???

u cant, card hits 61c then starts slowing down. nice company hahahahah

how many times i have to tell u, its been proven by industry professionals who rub alovera leaves on ebola that u cant overclock nvidia...

Thank you.

dragonmike: You won the most anticipated award for the biggest bullshit ever posted in this forum.

https://s-media-cache-ak0.pinimg.com/originals/fe/fb/20/fefb204da3386d92b5d6e0f26e5933eb.jpg

So, after almost three pages... can you manually overclock pascal?

Well he is OC Pro he can shatter your world. So yes he was able to learn from other noobs what a Pro never learned as Pro from HWbot.
So I hope he will value the turd award.. but maybe i should nominate him for the Darwin award.

Calm down my friend, you should know it, can you overclock pascal manually?

If I give them enough amps and water cooling what is the limit on 1080ti?

Thanks for hijacking.

I don't have a 1080ti or fullcover block to it yet. But I have a feeling I might have some soon.

About maxing, hehe...

$700 for gpu for mining is a waste of money.

Let me do the power thing.

What I am looking for is to buy some cheap 1080ti soon, I only need to know what it can do if it is maxed. 300w@40C could do magic, you tried?

80-90%+ miners know shit, they are used with copy/paste setting for AMD, same with HW, they sow it on youtube, etc, real insight ZERO brain power!

Sure NV OC is easy but there is no c/p setting because each bios is set to different offset , same for TDP, and then you try to explain to some shithead what a offset  :)

Sure they also have afterburner ctrl+f custom boost OC tool! lol when they open it they shit bricks :D

I too agree might be nice to have more control over NV OC but still this is not a reason for some twat to cry here

I am not crying, I am asking a simple question, how much can a 1080ti do if temps=40C and amps are no issue?

Someone actually tried it?

I ROI every 3 minutes currently... still no answer to my question...

Our?

I actually need help with this, is it too much asked?

Why would anyone sane burn 1080ti at 300w, sure it can to pull 5-8% more then normal with 100+ watts, also it depend on algo used and its optimization/miner, so no one can answer something that is not static!

Ppl ask stupid questions where there is no clear answer because the question is not defined (its more stupid)

Let me do the thinking.

Anyone 1080ti 300w 40C?

I think after 3 pages now, you should know the answer is no.

If you are asking for permission, then please understand that you don't need our permission.  Just try it and let us know how it goes.

If you are asking for validation, then no miner is going to approve because of the sunken cooling and power costs you will incur in your attempts to hit 300W @40C.  No one believes its worth the effort for the small gains you would see.

There are two things I actually learned in this thread:

1/ the amount of cretins in here is staggering

2/ (buried in approx 3 pages of trash) GPU doesn't boost when power limit is lowered but reverts to base clock - which then off course warrants manual overclocking. I learned something there, this is actually the info I was after.

I think for each individual coin you have to find the right rate to mine. Sometimes it might be even less than max speed. So overclocking is not everytime the best solution.