If you have the same card, you actually have to take into consideration 2 aspects

1º the asic quality between the cards (silicon lottery)
2º quality of ram modules.

That said, 100mhz on the memory will not give you 2 mh/s more, but good memory timings yes. also gpu core speed is very important. Just one example: if i reduce the core of one of my RX 580 sapphire nitro+ 8gb from 1240mhz to 1150 (trying to use less electricity, i lose i hole Mh/s going from 32.2 to 31.2

you can try it yourself. open Polaris bios editor, open your own bios mod, and try the "one click patch". That will apply performance timings for elpida. maybe that would do the job.

i don't think your 1750 stock memory can go that high (unless you have samsung memory and not even that way). That memory speed is only possible IMO for RX 580 8gb sapphire (i have 2 of them at 2250mhz (hynix and micron).

The key question is: have you checked your GPU errors??? This is VERY important, because i think you will be doing errors in the billions. Simple as this: download a program called HWinfo64. Scroll down to "gpu memory errors". If you are getting more than 10 errors/hour you are actually overclocking way to much. My RX 580 4gb (with 1750mhz hynix), is doing 2065 mhz with like 1 error/hour or maybe less at a rock solid 30,2mh/s

-100mv makes no sense. You actually have to say the current voltage your card is using. Typically and depending on the asic quality of your card, from 850mv to 900mv is a very good to good undervolting. above that.....well....you just a a low asic quality card like mine. My sapphire RX 580 4gb on my testbench is 63% asic (brutally good for overclocking but very bad at underclocking and undervolting) will not let me go below 930mv for 1160mhz on the core.

if you see your hashrate vary very often that means your card is getting millions of errors.

why?? because 95% of the people know nothing about this.

most of the people are holding.

Big investors are buying and selling a huge amount of coins within hours, that makes big fluctuations in the price.

Particularly me, i think Cryptomarket will not recover that blood tsunami of the past month and as soon as i get where i want, i will sell. ETH will not get to 1000€ anytime soon , and the bills should be paid soo......

for me what makes an altcoin valuable is one of this two things.

1º if it cannot be mined , than the project, the community and the team will be very important because the project should seem to be appealing or interesting for the people to invest. But the reality is that very few coins survive the first year, and like 90% of them will give low to no profit at all.

2º if it can be mined , it will only be valuable if it can be traded to BTC or another important altcoin.

According to Vitalik, Casper will arrive soon ,and ETH will go from PoW to PoS and the bomb of difficulty will be activated so no mining will be viable.

The question is: which alt coin will you mine??

once ethereum will switch to PoS and Casper is applied, enabling the difficulty bomb (that will disable any type of mining), Ethereum will crash in price because then, the price will only be related to signing contracts and not gambling like it is now.

Can anyone tell me a good contract for ETH in the last 6 months that can actually imply it will succeed doing smart contracts and all this kind of stuff?? Noone.

Till then, ETH will be a good coin to mine and gamble with it.

air drop incoming!!

https://marineco.in/ico/

Just give it a try, it's giving away 450.000 MTC for free but the project is interesting since it is an artificial inteligence machine to machine paying network. This will be vastly needed in the future to handle all cryptos so it's a good time to support this project, which is btw a time tested cryptocurrency since 2013 and ready to develop and integrate smart contracts!

because they want you to buy it, so that there are actually less coins in the market and prices go up. After they get their desired price, they sell and you get F.U

Thanks for your answer, but i partially disagree.

If the market and people actually believed in this project of blockchain, why would you run away from it at the first hit? Well....this is where i disagree with you. You say that there is a big technical strength in crypto. But that's not true. It was the actual marketing of crypto who said that. If you spend like me about 1 week watching the projects behind all those alt coins, you will see that none of them has a viable project, just a good idea (and used ico to get the money, btw, those coins are worth NOTHING nowadays). The real fact is that none of them have made their way through this disaster. all crashed at the same speed of BTC, and thats irrefutable. 

Can you tell me what is actually backing up the project of ETH for example?? Who and what is behind that?? well.....nothing. Cryptocoins are usefull as long as you can make money with it (which is btw a type of gambling). but the real fact is that, once goverments and banks have entered the fight, with the first hit they've had enough. that 70% lost, are all the people that where in for the hype, the tax evasion, or just to gamble. once goberments have said: ban or tighter controls, all the market has collapsed.

It collapses because of the controls and regulations? or just because people don't believe in the projects they invested in because of the controls? choose one. There is no other option.

BTW, i'm not interested in buying any coin, because that's the biggest error you can make right now, since the market is already collapsing. If you buy, you are going to lose money, thats granted. but do whatever you want, it's your money. Just and advice: only use the money you can afford LOSING. 

you say that losing more than 50% of its value means nothing because it won a lot before. That's actually false. Cryptocoins won money due to DE-regulations not value. Goverment and banks said nothing. once the problem was big enough for them, the old system has crashed to ashes cryptocurrency, and that will never return.

Forget about projects, cryptocurrency was not about that, that was just the lie for you to enter. cryptocurrency was all about tax evasion. Simple as that. And once evading has been made difficult, it has crashed because investors leaved the place as soon as they could. 800.000.000.000 before announcements of regulations , controls and bans. 275.000.000.000 after those announcements. it's clear as water my friend.

in the last 24 hours, the market cap of ETH has lost 14.000.000.000 dollars. what i cannot understand is why people are still farming. Are they dreaming of an epic comeback?the profit per card (considering 32Mh/s per card) is actually about 1,5 dollars per day (without considering electricity costs). so.......

205.000Gh/s are actually mining ETH. WTF!!! prices way down, difficulty way up, with Casper behind the door already knocking. the only reason i can think of is that all that people are knocked like a boxer that has received a big punch in the face. 205.000 Gh/s of convinced people that this is just a hole in the rough path. but it's not. If you cannot win free money with cryptocoins.....well, happens what it is happening right now.

sorry but you don't really need to block it. Just put bans on buying and more controls so that people cannot evade taxes and you are done. They cannot put doors in the mountain. It's easy. You can enter, but i will know who you are. Done.

If you don't understand this, you´ll not understand why crypto is dead.

i totally disagree, sorry. All altcoins are worth something due to the possibility to exchange it to BTC. once BTC crashes, those coins will be worth NOTHING. Who is going to be using mining and spending electricity on something that's worth NOTHING??

For god shake, i don't know if you have interests on any coin (i sold all my ETH at 1050$). i knew this was gonna happen. If BTC is worth almost nothing, all altcoins will be worth nothing. If BTC cannot be used in real live, nor will be those alt coins.

For me , cryptocurrency is dead, because goverments have done what they can only do: put regulations over them, so that they are not viable to evade taxes. This is the only truth of nowadays, and what proves why BTC and ETH have lost 50% of its value in 1 month, or why in that same period, the money invested in cryptomarket has gone from 800.000.000.000 dollars to about 280.000.000.000.000, that's like 70% down.

Face it, those that are farming, will spend more money in electricity and actual profit. And yes, they have killed cryptocurrency. At all. If you don't believe me, see the graphs of all coins and compare news from goverments to falls in price. they absolutely match.

yes , absolutely.

I´ll tell you why. Because cryptocurrency has been sold, by marketing for "providing a stable way of doing projects". But THE REAL FACT, THE ONLY REAL FACT, is that crypto was used to evade money from goverments. Once the goverments have banned or difficulted this, Cryptocoins have lost in a single month half of its value. HALF!!! and the money in all the cryptomarket has gone from 800.000.000.000 dollars to 283.000.000.000 RIGHT NOW!!!!! THAT'S ALMOST 75%!!!

So....this was clear AF, and i already knew this. The goverments want to destroy crypto (and banks also want that) because whenever you put money on that goverment and banks lose the control and that brings to possiblity to evade taxes. Those mofos, that live at the expense of your money know that if all put money there, they will have less money to give it to their friends and so on.

They have killed cryptocurrency. Absolutely yes.

And this , what is actually happening proves my absolute and undisputable point: the moment goverments have banned crypto, crypto has died, because there is not a single viable project with blockchain. Just evading.

When a market loses 75% of it's value due to regulations, that means something, don't you think??

Have you seen the growth of network hashrate for ETH in the last month? by 13 of December, it was about 130.000 GH/s. Now, even with the cryptomarket full with blood, there are still 204.000GH/s working. Why would you still mine ETH at current prices?? well, that's why because almost all other coins are BTC-related. Sia, Decred, Monero, electroneum and others etc...almost all coins that were worth something, was because of the trading with BTC.

Once trading has been compromised, those farming with GPU's (the vast majority) have no place to put it but to ETH. And moreover, ETH is just following the same exact graphs of BTC. If this coin would be the possible nº1 coin, why would this coin follow BTC behavour over and over again?

Now, in the transition from PoW to PoS, people will actually get rid of the coins by sending them to the chain. According to what it has been said, you will receive "money" according to the use of that chain and your inputs. The more coins, more money. But, and this is the issue, the chain will be worth something if there is actually people that are using that coin for something.

Due to regulations, banks and goverments that are putting the greatest efforts to make it difficult for this technology to be effective (because they can't stand not having the control over the money, each one for it's own profit), the people with money to use the chain, are actually not using it. The market has halved it's value in just 1 month. almost 400.000.000.000 dollars have left the cryptocurrency market.

PoS will give you only a comission according to the "use" of the chain. But noone will tell you how much the chain will be used. Nowadays you have a value for ETH. currently...592€. Tomorrow you will still have a value. But when the market switches to PoS........who is gonna tell you what's worth the coins you actually sent to the chain?? and that's considering you could enter PoS. Because at the begining only large holder will be able to enter (those will be the lab rabbits).

I´ll make a guess. Days before PoS is implemented, ETH price will crash to almost nothing.

absolutely NOT.

ETH in the graphs almost matches BTC ups and down. In fact, many people were trading ETH for BTC in December.

But the main reason is that in no more than 6 months, ETH will go to PoS with Casper. Millions and millions of dollars in GPU's will be worth almost nothing, the market will collapse with GPU, prices will go down AF, and ETH will not be able to be mined.

ETH IS NOT THE WAY TO GO RIGHT NOW, and noone, (other than retardeds) would put money onto this. ETH mining is almost dead, and Vitalik knows this. He will try harder to implement Casper as soon as possible before the market crashes ETH value.

ETH is dead.

Excuse me, but you have to be brutally retarded to buy new GPU's at enormous prices considering the state of the cryptocurrency. Noone (none mentally disabled) should be thinking of paying hardware that you´ll not even ROI.

But the first thing that it suprised me the most when i read this post, is that noone is blaming the goverments or the banks for making it difficult for the cryptocurrency. So.....do we have to accept that this was to happen and not blame who has actually lead to this disaster??? i simply can't believe how people accept the result of this just by accepting that everyone should have had this idea when you put a single dollar into this.

So China is not to be blamed?? nor the biggest banks?? Is this a result of the market? OR IS IT THAT THE CRYPTOCURRENCY MARKET IS BEING TAKEN DOWN BY BANKS AND GOVERMENTS BECAUSE OF THEIR OWN INTEREST??

BTW, this has shown two of the biggest and most importants things that we are seeing nowadays.

1º Banks have seen that the more money goes to cryptocurrency, the less money they have to win money gambling with it, and if something goes wrong, no worries, the state will pay for it. So banks are trying to make it difficult for you to get the money out of the system. Just for their own interest. they are even banning people from using their own money in crypto. You can get whatever you want with a credit card, but not crypto (since the money goes absolutely out of control of the banks and they don't want this to happen).

2º The countries, and specially those mofos that are actually ruling our lives want you to pay taxes. The more money is put in crypto, the less they get in taxes since the money also goes away from the control of the Goverment.
Countries have seen that cryptocurrency is a big hole to hide money from this goverments that live at the expense of your pocket, and that they cannot live without putting their hand in your pocket.

So....to sum up, the system against the new system. All against the cryptocurrency. considering this, it's a moral MUST to evade taxes.

hello.

actually i have 2 Sapphire RX 580 Nitro + 8gb running (a third MSI RX 580 Gaming X 8gb is coming on monday (it's was a bargain considering prices nowadays). Just a few tips for those that read this.

Afaik 850mv on the core is just about "right" in many scenarios. both of my cards cannot stay up with that voltage for a long time. Moreover, it happens to me than whenever my internet fails, the cards hang. Why? Because the voltage offset actually afects iddle voltage so, if the card uses let's say 100 on idle, if the internet hangs, the miner stops, the cards tries to go to 300 mhz on the core, and than the offset is applied so 100 minus offset = crash.

According to my findings, my cards can run for more than 50 hours (damm temperature hang error) with 880mv on the core at 1240mhz. The memory (Hynix and Micron) at just fine at 2250mhz without any issues at all. My micron card is perfectly fine at 2250mhz on the memory at 865mv (i modded that on the bios, no issues). For the hynix, i have it at 900mv (also modded). Stock setting for that card was 1000mv.

With DCRI 10 those 2 cards are actually hashing at 32.1mh/s. Both are using like 88W on the core and 60 for the other components, so around 150W total GPU power consumption. Solo mining. it's possible to reduce power consumption by undervolting (also reducing core speed), but my excel tells me that it's better to use a bit more Watts and squeeze the best out of it, because usually more hash rate is better than too much undervolting.

Just to clarify the numbers i'm talking about. For a reduction from 880mv to 856mv on the core, in case you are worried about electricity,  you just save around 6W every hour.  also ASIC quality is important, both of them are at 75% but if you win the silicon lottery maybe you can go way down undervolting. The best thing of this, is that once you know exactly what to modify in the bios , it's easy to get what you want.

My best advice, (if the cards are going to go for mining only), is to test them with certain settings, make sure they are stable, and then put that config into the bios, so that you don't have to apply manually the settings using MSI Afterburner.

Hello. Normally people just tell you the gpu core power consumption. Mine is around 100W as i said. The system on idle uses about 100W to the wall. My cpu is a Xeon X5460 with 120W TDP, but even at full load only uses 40W according to cpuID HWmonitor, (it's way voltage downcloacked from VID numbers) so , not bad at all for a 4 cores 4 threads 8 year old dinosaur.
Yes, i use my rig for daily (it was not meant to be for mining but it is indeed now). add an 120mm AIO, 3 x120mm fans, ddr3 1,65v and not the best efficient mobo (though a good old one, like it is the Asus P5QC) and two hard drives, one SSD and 1TB hard drive. also RGB lights on the case and high performance keyboard and mice with RGB lights.

But, you should know that there are more variables. For example, the Asic Quality determines how much voltage does the card need to use, and moreover, are better overclockers and downclockers aswell. The higher asic, the better, mine is "average" at 75%.
Another variable is the memory. It's said that Samsung memory use less power than mine (Hynix memory)so there you can get a few watts less.
Another variable is the slot. cards with risers use less power according to what i've seen. very little less, but when you have 6 cards, well, it can be like 20-40W less for the whole 6 cards.

The sapphire RX 580 pulse model, as from stock uses less power, you can go way down to 0,835v using 77W and hashing nearly 30mh/s. While mine, the Nitro+ uses more core voltage so the number from which you can downclock is higher than on the pulse, even at -200mv it will not let me go below 0.925v no matter if i go to 1000mhz on the core. So, in practice, for only mining, the pulse is the way to go. Thought i think you can tell the miner to insert a certain voltage, i haven't tried it out.   

for a complete 6 RX 580 8gb cards mining rig the total power consumption according to some people is about 850W to the wall. like 125W per card (assuming idle power consumption of about 100W)This is achivable just by going to 75-80W on the core power consumption.


I can confirm, that , with my settings above, i don't need to plug the 6 pin conector, it will be perfectly fine with the 8 pin connector while hashing. i've tried even 1450mhz on the core and 2250 on mem with just 6mv added to stock voltage on the core with only the 8 pin connector and it was perfectly stable in Uniengine Heaven and 3dmark fire strike, so....there you are.

according to my numbers, my card uses while hashing a total power consumption of about 150W, Being like 100W for the core and 50W for other components. I've tried going below that, but the savings on W are very little compairing with the Mh i do not get. 

Hello, another noob here, 

I'm using 1 Shappire RX 580 Nitro+ 8gb with hynix memory. I just modded the bios

this are my numbers:

260W ish from the wall
mining etherium at 31.8mh/s.
1250mhz on the core
2250mhz on the memory
around 100W for the gpu core
fan speed at 30% around 57ºC for a 24hours period.
-175mV on the core
from 949 to 955mV while hashing.

am i doing the things right? Thanks for your help.