Mining hardware – Bitcoin Wiki

ZOTAC GeForce GTX 1080 Ti Unstable

I've had this card for a couple years. I bought it used off ebay for cheap.
I used to slightly overclock the card without issues when I first got it, but since I started playing a couple games again it crashes without an underclock. After playing around with Firestorm I found I have to underclock it by about -200 MHz on GPU and about -900 MHz Memory to get the card stable, this is nearly all it will allow on the sliders. If I don't, on benchmark tests it freezes up or artifacts if I don't do enough Memory underclock. Games run for some time then eventually crash or freeze if I don't...underclocked has no issues.
Any idea what may be causing this, card just dying? I'm sure it was used for bitcoin mining originally so that wouldn't shock me.
submitted by bka1 to graphicscard [link] [comments]

Debunking myths about mining and GPUs

E: Going to bed, will contribute more tomorrow. Thanks for the discussion!
Myth: Mining is more stressful than gaming. Fact: It depends. During the old days, this was plausible, because older GPUs (Pre-polaris) are/were bottlenecked by core clock when mining the most profitable coins. Thus, miners overclocked and overvolted these cards quite frequently, especially with cheap electricity. This meant that those cards were often run hot, pushing the limits and stressing VRM and fans quite a lot. Nowadays, ethash (Ethereum) is the most profitable algorithm for AMD cards 99% of the time, and newer GPUs (Polaris) are limited by memory bandwidth and latency. Miners can underclock core to the low 1100MHz range before seeing performance drop. To save power, miners who know what they are doing also undervolt, since it is no longer necessary to sustain a high core clock. Thus, it is quite feasible to run polaris cards below 70C at a reasonable fan speed. However, dual mining (mining more than one coin at once) does increase power consumption by up to 20%, and there are also idiots who run their polaris cards OCd while mining. With the exception of a few idiots, miners treat their Polaris GPUs pretty much the same; that is, running underclocked and undervolted 24/7 with a memory strap mod and mem OC. On the other hand, former gaming cards are highly variable in use cases. Some gamers leave their cards at stock settings, some undervolt, and some OC and/or overvolt. Most of the time, these cards are thermal cycled far more often than mining cards, which is known to weaken solder. Another thing to consider is that manufacturers have learned (somewhat) from their mistakes of putting shit tier fans in GPUs, and many fans on modern GPUs are ball bearing and/or swappable. Even some budget cards, such as MSI Armor, use decent ball bearing fans. Bottom line: the risk of buying mined Polaris cards is not as high as the risk of buying older mined cards. I would not be against buying mined polaris cards, but it's not necessarily better than buying a gamer's card instead. At the end of the day, it depends more on how the owner treated it than what they used it for.
Myth: GPUs are obsolete because of FPGAs and ASICs Fact: Mostly false. Older algorithms such as scrypt and SHA256 (lite/doge/feathebitcoin etc) are no longer feasible to mine with GPUs, but there have been multiple algorithms since then that are built to deter ASICs; most of the time it is done by making it memory-hard because designing an ASIC with high memory throughput is considerably more expensive to design and manufacture. Many devs prefer their blockchain to be ASIC resistant to avoid the concentration of power problem that Bitcoin is having nowadays, where a giant, near-monopolistic ASIC manufacturer (Bitmain) is causing a lot of (subjective) controversy. Blockchains based on ethash (Ethereum and its forks), equihash (Zcash and its forks) and cryptonight (Monero and forks) are some examples, but there are scores of other shitcoins and a few other algos that are GPU dominant. It is almost impossible that there will be another ASIC takeover, which is what was responsible for the stop in GPU demand in the bitcoin and litecoin days. Bottom line: ASICs no longer threaten GPU miners, or the demand for GPUs
Myth: Ethereum switching to Proof of Stake will kill mining soon Fact: Doomsayers have been preaching about proof of stake since late 2015. It has always been "coming soon." The fact is, the Ethereum roadmap goes from proof of work (mining) -> Casper (mining + PoS) -> Metropolis (PoS). Currently, the release date of Casper is not even announced yet, nor is it being tested in a (public) testnet. Proof of Stake might one day take over, but mining is here to stay for a while yet. Another thing to consider is that there are tons of other GPU mineable blockchains, and although Ethereum is biggest, it is certainly feasible that mining stays profitable even after Ethereum goes PoS (if it ever does). However, it is possible that profits will be low enough to discourage new miners. Bottom line: It's very unlikely. E: I screwed up the roadmap; here is a better source than me with some interesting information: https://www.ethnews.com/ethereums-vitalik-buterin-gives-keynote-on-metropolis
Myth: The current Ethereum demand spike is a bubble Opinion: Honestly, I don't know. I would not be surprised if stricter regulations on ICOs come sooner or later, which would fuck with Ether prices. There is also the inherent volatility of cryptocurrencies. However, it is also possible that blockchain technology continues to gain traction; that is, the price could just as easily go up as go down. Although it's fun to read about other people's opinions, only time-travelling wizards can tell you when it will become economical again to upgrade your poor HD5770. Bottom line: No one knows.
Myth: Miners will "steal" all the RX Vegas Fact: Only a reckless miner would buy Vegas on release, since mining performance is not known. In fact, it is possible that it can't mine at all (or at some stupidly low speed) until devs add support to existing miners. It would be even more reckless than gamers who buy without seeing benchmarks, since at least gamers can expect the games to actually run. It's also not necessarily the case that Vega will be good once miners do add support. Maybe there will be enough reckless miners to affect supply, maybe not. Of course, it is possible that miners will deplete the supply after it is demonstrated that Vega is good for mining. Bottom line: Most miners won't preorder, but it's possible that a significant number will. E: Important to remember that even if mining demand isn't high, doesn't mean that supply will be plentiful.
Myth: Nvidia cards SUCK at mining Fact: Mostly false. They USED to suck in the old pre-Maxwell days, but now they are actually more efficient at mining Ethereum and Zcash compared to AMD cards, even after both cards are undervolted. The flipside is that they (used to) cost more for the equivalent hashrate. For reference, my old 5xRX470 rig drew just under 800W when mining ETH only and hashed at 150MH/s. My current 6xGTX1060 rig draws just over half of that (<450W) and hashes at about 135MH/s. Certainly not as good in raw performance, but they are viable nonetheless, especially given the AMD GPU shortage. In fact, Nvidia cards (1060 and especially 1070) are becoming scarce as well. Bottom line: Nvidia is still the underdog when it comes to mining, but far from irrelevant nowadays.
Myth: 4GB cards will be obsolete for mining soon Fact: FALSE. The Ethereum DAG is not even 3GB yet, and won't be for a few months. The recent reports of 4GB Polaris cards slowing down soon due to DAG size is caused by limited TLB capacity, not VRAM restrictions. Polaris cards will still be able to mine ETH forks such as Expanse and UBIQ without diminished speed, and even if they are used to mine ETH, it is not that much of a performance hit at first. It would certainly not make polaris useless or undesirable for mining anytime soon. Tahiti GPUs already suffer from this issue and Hawaii is the most resistant to this issue. Have not benched Nvidia at a later epoch.
Myth: Creating miner-bashing posts on Reddit will help alleviate the GPU supply problem Fact: False, you are simply giving cryptocurrencies and mining more exposure to the general public, increasing demand.
Myth: Mining-specific GPUs will solve the shortage problems Opinion: There's not enough info to tell yet, but I am a skeptic for the following reasons. First, no display limits the resale value of the card for obvious reasons. IMO, the whole point of crypto mining from a profitability standpoint is to have a hedge against coin volatility (hardware is still worth something if the coin crashes). Otherwise it is much less effort to just buy and hold the coin. If the hardware is useless without demand from other (significant) sources, then it doesn't make much sense to buy it unless the price is extremely low. I'm sure that cost-downing the PCB and warranty will make for a cheap card, but it has to be extremely cheap and plentiful in supply, or else miners will buy whatever they can get. I could envision "failed" chips (not meeting spec of consumer editions) being stuck in miner cards, but I doubt there are enough to meet demand without ramping up production as a whole, which carries its own risks. I guess that it would help a little, but probably not solve the problems. Alternatively, since modern GPUs are bottlenecked by RAM when mining, it might be enticing to miners to have the fastest (GDDR5) RAM on the market (probably the 9gbps chips from the 1060 6G 9gbps edition, although I don't have one to test). However, my previous points still apply; buying such a card without display outputs carries a big risk. Bottom line: It's not a great idea, unless they are super cheap or use really good RAM.
Hope this helped; if you have any further questions I will try to answer them. I'm both a gamer and miner who uses both AMD and Nvidia roughly equally and don't favor one group over another. I've mined and gamed on all high end AMD GPUs since Tahiti (except Tonga) and all Pascal cards except 1050ti.
submitted by key_smash to Amd [link] [comments]

Mining ERC-918 Tokens (0xBitcoin)

GENERAL INFORMATION

0xBitcoin (0xBTC) is the first mineable ERC20 token on Ethereum. It uses mining for distribution, unlike all previous ERC20 tokens which were assigned to the contract deployer upon creation. 0xBTC is the first implementation of the EIP918 mineable token standard (https://eips.ethereum.org/EIPS/eip-918), which opened up the possibility of a whole new class of mineable assets on Ethereum. Without any ICO, airdrop, pre-mine, or founder’s reward, 0xBitcoin is arguably the most decentralized asset in the Ethereum ecosystem, including even Ether (ETH), which had a large ICO.
The goal of 0xBitcoin is to be looked at as a currency and store of value asset on Ethereum. Its 21 million token hard cap and predictable issuance give it scarcity and transparency in terms of monetary policy, both things that Ether lacks. 0xBitcoin has certain advantages over PoW based currencies, such as compatibility with smart contracts and decentralized exchanges. In addition, 0xBTC cannot be 51% attacked (without attacking Ethereum), is immune from the “death spiral”, and will receive the benefits of scaling and other improvements to the Ethereum network.

GETTING 0xBITCOIN TOKENS

0xBitcoin can be mined using typical PC hardware, traded on exchanges (either decentralized or centralized) or purchased from specific sites/contracts.

-Mined using PC hardware

-Traded on exchanges such as


MINING IN A NUTSHELL

0xBitcoin is a Smart Contract on the Ethereum network, and the concept of Token Mining is patterned after Bitcoin's distribution. Rather than solving 'blocks', work is issued by the contract, which also maintains a Difficulty which goes up or down depending on how often a Reward is issued. Miners can put their hardware to work to claim these rewards, in concert with specialized software, working either by themselves or together as a Pool. The total lifetime supply of 0xBitcoin is 21,000,000 tokens and rewards will repeatedly halve over time.
The 0xBitcoin contract was deployed by Infernal_Toast at Ethereum address: 0xb6ed7644c69416d67b522e20bc294a9a9b405b31
0xBitcoin's smart contract, running on the Ethereum network, maintains a changing "Challenge" (that is generated from the previous Ethereum block hash) and an adjusting Difficulty Target. Like traditional mining, the miners use the SoliditySHA3 algorithm to solve for a Nonce value that, when hashed alongside the current Challenge and their Minting Ethereum Address, is less-than-or-equal-to the current Difficulty Target. Once a miner finds a solution that satisfies the requirements, they can submit it into the contract (calling the Mint() function). This is most often done through a mining pool. The Ethereum address that submits a valid solution first is sent the 50 0xBTC Reward.
(In the case of Pools, valid solutions that do not satisfy the full difficulty specified by the 0xBitcoin contract, but that DO satisfy the Pool's specified Minimum Share Difficulty, get a 'share'. When one of the Miners on that Pool finds a "Full" solution, the number of shares each miner's address has submitted is used to calculate how much of the 50 0xBTC reward they will get. After a Reward is issued, the Challenge changes.
A Retarget happens every 1024 rewards. In short, the Contract tries to target an Average Reward Time of about 60 times the Ethereum block time. So (at the time of this writing):
~13.9 seconds \* 60 = 13.9 minutes
If the average Reward Time is longer than that, the difficulty will decrease. If it's shorter, it will increase. How much longer or shorter it was affects the magnitude with which the difficulty will rise/drop, to a maximum of 50%. * Click Here to visit the stats page~ (https://0x1d00ffff.github.io/0xBTC-Stats) to see recent stats and block times, feel free to ask questions about it if you need help understanding it.

MINING HARDWARE

Presently, 0xBitcoin and "Alt Tokens" can be mined on GPUs, CPUs, IGPs (on-CPU graphics) and certain FPGAs. The most recommended hardware is nVidia graphics cards for their efficiency, ubiquity and relatively low cost. As general rules, the more cores and the higher core frequency (clock) you can get, the more Tokens you will earn!
Mining on nVidia cards:
Mining on AMD cards:
Mining on IGPs (e.g. AMD Radeon and Intel HD Graphics):
Clocks and Power Levels:

MINING SOFTWARE AND DESCRIPTIONS

For the most up-to-date version info, download links, thread links and author contact information, please see this thread: https://www.reddit.com/0xbitcoin/comments/8o06dk/links_to_the_newestbest_miners_for_nvidia_amd/ Keep up to date for the latest speed, stability and feature enhancements!
COSMiC Miner by LtTofu:
SoliditySha3Miner by Amano7:
AIOMiner All-In-One GPU Miner:
TokenMiner by MVis (Mining-Visualizer):
"Nabiki"/2.10.4 by Azlehria:
~Older Miners: Older and possibly-unsupported miner versions can be found at the above link for historical purposes and specific applications- including the original NodeJS CPU miner by Infernal Toast/Zegordo, the '1000x' NodeJS/C++ hybrid version of 0xBitcoin-Miner and Mikers' enhanced CUDA builds.

FOR MORE INFORMATION...

If you have any trouble, the friendly and helpful 0xBitcoin community will be happy to help you out. Discord has kind of become 0xBTC's community hub, you can get answers the fastest from devs and helpful community members. Or message one of the community members on reddit listed below.
Links
submitted by GeoffedUP to gpumining [link] [comments]

Is it worth mining with an R9 390? & What program should i use?

I see all these people saying they make 2 pounds a day mining with GTX 1080's, Can i get similar mining performance with an R9 390? What programs do i use? & How much exactly will it raise my electricity bills up to?
submitted by Namoor3 to pcmasterrace [link] [comments]

New to r/Tokenmining? click here for more in-depth info!

What is EIP:918?

EIP:918 is an Ethereum Improvement Proposal for standardizing mineable token distribution using Proof of Work.
The primary driver behind the standard is to address the very broken ICO model that currently plagues the Ethereum network. Token distribution via the ICO model and it’s derivatives has always been susceptible to illicit behavior by bad actors. New token projects are centralized by nature because a single entity must handle and control all of the initial coins and all of the the raised ICO money. By distributing tokens via an alternative ‘Initial Mining Offering’ (or IMO), the ownership of the token contract no longer belongs with the deployer at all and the deployer is ‘just another user.’ As a result, investor risk exposure utilizing a mined token distribution model is significantly diminished. This standard is intended to be standalone, allowing maximum interoperability with ERC20, ERC721, and future token standards.
The most effective economic side effect of Satoshi Nakamoto’s desire to secure the original Bitcoin network with Proof of Work hash mining was tethering the coin to real computing power, thereby removing centralized actors. Transitioning the responsibility of work back onto individual miners, government organizations have no jurisdiction over the operation of a pure mined token economy. Oversight is removed from an equation whereby miners are providing economic effort in direct exchange of a cryptographic commodity. This facilitates decentralized distribution and establishes all involved parties as stakeholders. The ERC918 standard allows projects to be funded through decentralized computing power instead of centralized, direct-fiat conversion.
The Ethereum blockchain in its current state exists as a thriving ecosystem which allows any individual to store immutable records in a permission-less, invulnerable and transparent manner. Recently, there have been proposals to mitigate some initial ICO investment risks through the introduction of the DAICO model that relies on timed and automated value transfers via the smart contract tapping mechanism. However, this does not align a token smart contract as a non-security and still has the potential to put investors at risk if not implemented carefully, relying on centralized actors to be fair and community intended. Allowing users of the network direct access to tokens by performing computations as a proof of work supplies allows any smart contract to distribute a token in a safe and controlled manner similar to the release of a commodity.
As of 2017, all Ethereum token distribution methods were flawed and susceptible to Sybil attacks. A Sybil attack is a form of computer security attack where one person pretends to be many people with multiple computer accounts in order to manipulate a system in a malicious way. ICOs and airdrops are highly susceptible to these type of attacks so there is no way to verify that all ERC20 tokens distributed by the deployer were doled out fairly or unfairly. Proof of Work distribution is resistant to Sybil attacks. This means that ERC918 tokens are among the first trustless Ethereum tokens in the world. The distribution of ERC918 tokens is fair because they are allotted via an open, decentralized mathematical algorithm (that anyone can view on the mainnet blockchain) and not a centralized human monarchy.
ERC918’s first incarnation (and inspiration) was the 0xBitcoin project that launched in early 2018. Since then, several projects have realized the standard in innovative and creative ways. Catether (0xCATE) erupted early and additionally mints payback tokens during transfer operations to offset gas costs. 0xGold and 0xLitecoin each implement the first on-chain merge-mining with 0xBitcoin and the Mineable Gem project extends the standard onto a non-fungible collectible artifacts, whereby each gem has a unique mining difficulty. The Mineable project is a newer initiative that provides users with the ability to create mineable ERC20 tokens on-chain without writing a line of code and includes a virtualized hashing artifact market that allows miners to purchase on-chain vGPUs to improve mining difficulty and rewards. (written by jlogelin) ​

MINING IN A NUTSHELL

0xBitcoin is a Smart Contract on the Ethereum network, and the concept of Token Mining is patterned after Bitcoin's distribution. Rather than solving 'blocks', work is issued by the contract, which also maintains a Difficulty which goes up or down depending on how often a Reward is issued. Miners can put their hardware to work to claim these rewards, in concert with specialized software, working either by themselves or together as a Pool. The total lifetime supply of 0xBitcoin is 21,000,000 tokens and rewards will repeatedly halve over time.
The 0xBitcoin contract was deployed by Infernal_Toast at Ethereum address: 0xb6ed7644c69416d67b522e20bc294a9a9b405b31
0xBitcoin's smart contract, running on the Ethereum network, maintains a changing "Challenge" (that is generated from the previous Ethereum block hash) and an adjusting Difficulty Target. Like traditional mining, the miners use the SoliditySHA3 algorithm to solve for a Nonce value that, when hashed alongside the current Challenge and their Minting Ethereum Address, is less-than-or-equal-to the current Difficulty Target. Once a miner finds a solution that satisfies the requirements, they can submit it into the contract (calling the Mint() function). This is most often done through a mining pool. The Ethereum address that submits a valid solution first is sent the 50 0xBTC Reward.
(In the case of Pools, valid solutions that do not satisfy the full difficulty specified by the 0xBitcoin contract, but that DO satisfy the Pool's specified Minimum Share Difficulty, get a 'share'. When one of the Miners on that Pool finds a "Full" solution, the number of shares each miner's address has submitted is used to calculate how much of the 50 0xBTC reward they will get. After a Reward is issued, the Challenge changes.
A Retarget happens every 1024 rewards. In short, the Contract tries to target an Average Reward Time of about 60 times the Ethereum block time. So (at the time of this writing):
~13.9 seconds \* 60 = 13.9 minutes
If the average Reward Time is longer than that, the difficulty will decrease. If it's shorter, it will increase. How much longer or shorter it was affects the magnitude with which the difficulty will rise/drop, to a maximum of 50%. * Click Here to visit the stats page~ (https://0x1d00ffff.github.io/0xBTC-Stats) to see recent stats and block times, feel free to ask questions about it if you need help understanding it.

MINING HARDWARE

Presently, 0xBitcoin and "Alt Tokens" can be mined on GPUs, CPUs, IGPs (on-CPU graphics) and certain FPGAs. The most recommended hardware is nVidia graphics cards for their efficiency, ubiquity and relatively low cost. As general rules, the more cores and the higher core frequency (clock) you can get, the more Tokens you will earn!
Mining on nVidia cards:
Mining on AMD cards:
Mining on IGPs (e.g. AMD Radeon and Intel HD Graphics):
Clocks and Power Levels:

MINING SOFTWARE AND DESCRIPTIONS

For the most up-to-date version info, download links, thread links and author contact information, please see this thread: https://www.reddit.com/0xbitcoin/comments/8o06dk/links_to_the_newestbest_miners_for_nvidia_amd/ Keep up to date for the latest speed, stability and feature enhancements!
COSMiC Miner by LtTofu:
SoliditySha3Miner by Amano7:
AIOMiner All-In-One GPU Miner:
TokenMiner by MVis (Mining-Visualizer):
"Nabiki"/2.10.4 by Azlehria:
~Older Miners: Older and possibly-unsupported miner versions can be found at the above link for historical purposes and specific applications- including the original NodeJS CPU miner by Infernal Toast/Zegordo, the '1000x' NodeJS/C++ hybrid version of 0xBitcoin-Miner and Mikers' enhanced CUDA builds.

FOR MORE INFORMATION...

If you have any trouble, the friendly and helpful 0xBitcoin community will be happy to help you out. Discord has kind of become 0xBTC's community hub, you can get answers the fastest from devs and helpful community members. Or message one of the community members on reddit listed below.
Links
submitted by GeoffedUP to Tokenmining [link] [comments]

Clearing up some confusion about cryptocurrencies, mining and when prices will go down.

I spend my last 6 months in a lot of cryptocurrency Reddits and informed myself about the topic. I read a lot of misinformation in the non crypto Reddits every day and because of that I am making this post to clear some things up and explain everything. Sorry for the wall of text, there will be a tldr; at the end
The Ethereum network pays out people who mine for them in Ethereum. The total daily amount of Ethereum giving out is more or less constant for now which means that if only a single person mines he gets everything, if a million person mine with the same hash power behind them everyone gets 1/1,000,000 of the reward, the reward itself does NOT increase, only the price of the ETH can increase.
Normally people would buy more GPUs until they reach a point of only a small profit compared to the energy costs and it would a reach a point of balance between total network hashrate and profit in USD (like it was in the last 3-4 years). The problem is that the price spiked multiple times way too fast and GPU manufacturing can't keep up which causes GPU prices to spike and delays this point of balance which results in MASSIVE profits for everyone who mines because the hashing power "supply" is capped. We are talking about 100$ a month with a SINGLE RX 480 right now (80$+ with power cost included).
Actually quite soon (yay). This is sadly a truth that not many miners know of (not to mention some are delusional... you will find them in the comments) and very few people think about. Even the popular Youtube channels have no idea about this. Before I come to the end of GPU mining first there are some numbers.
The current network hashrate is about 191TH/s and a total daily reward paid of 31,239,969$ in the last 24 hours. Because a single RX 480 gets about 28MH/s (pretty much average), we have about 6,821,428 GPUs mining ONLY Ethereum right now. If you every wondered how much money you need for a global GPU shortage the answer is about 30 million dollar daily.
Ok ok... the thing is the Ethereum network doesn't need your GPU power. It only uses it as a spam filter to make it harder to manipulate the network. You would need over 50% of the total hashrate to reliably fake transactions, think of it as a giant google captcha. You can easily replace that captcha with another one and this is exactly what Ethereum does in the near future. Proof of stake means instead of wasting GPU power you just stake your Ethereum and the more of your Ethereum you invest the more voting rights and rewards you get. If you are caught trying to cheat your whole money gets confiscated and donated to everyone else depending on their voting rights. Full proof of stake will probably be implemented late 2018 but just to be fair it already got delayed multiple times so there is no clear 100% date for it yet.
This is where the misconception starts. There is actually a second point of balance in all of this. All cryptocurrencies will always divide all the hashing power between them until they all reach about the same profit (people always switch to what gives the most profit). It may seem like there are a lot of profitable cryptocurrencies to mine but that is actually an illusion. Many of the smaller coins would be unprofitable after a few thousand GPUs because their total $ reward giving out daily is pretty small. The thing is nobody mines something that gives less profit so they switch. To sum it up Ethereum is basically the minimum payment job and everyone who goes below that wont find anyone willing to do the job until they get more profitable than Ethereum.
Now what happens if 6.8 MILLION RX 480 are jobless after a single update? They will all start mining something else. The problem is Ethereum has a GIANT majority in hashrate and all other mineable cryptocurrencies combined can't be profitable after Ethereum switches even if their prices spike by 10x.
OH HELL YEAH IT IS THAT BAD! Every heard of Monero? It is the cryptocurrency that caused the RX Vega shortage. Any idea on how much daily rewards they give out? A giant 1,504,249$ in the last 24 hours. Yes that is 20.7 times less and we are talking about the second biggest mineable coin out there. As soon as Ethereum fires all the miners everything will collapse and profit will turn NEGATIVE for a while unless you have free power. Q4 2018 is the end of mining for probably ever. Because the Ethereum code is open source and everyone can use it there will most likely be more coins that follow proof of stake after that (there already are some that already have it) so mining will most likely never come back.
There are many benefits. It consumes A LOT less power, it is most likely faster and people who hodl Ethereum get more Ethereum for just having it. Free interest rate hype! But the most important thing about this is that miners control the currency and every update to it. Sadly they don't have the same interests as people who want the crypto to succeed and improve. For example Bitcoin's block size is kept at 1mb even though increasing it was always the plan since 2009. Why? It's very simple. You can only fit X amount of transactions in 1mb and if it gets more than that only people who pay more get their transactions in faster which means more fews are being paid to the miners. While they make a fortune the currency suffers with spikes to 50$ for a SINGLE transaction (currently it's 18$). If the power goes to the ones having the currency they are directly interested in the well being of the currency which is better for everyone.
We will get the biggest GPU mass sell off in the history of the technology itself. I wouldn't be surprised to find a RX 480 for 100$ in December. Miners already made the price of the GPU back multiple times, they don't care about the price if they get at least something. This will be a GREAT time for buying GPUs. It already happened once in 2013? when ASIC miners got introduced for Bitcoin mining and all R9 290(x) got dumped on the market because they went from awesome miners to completely useless overnight. This time will be much bigger though because of the sheer amount of GPUs used for mining.
AMD did ramp up production last time with the r9 290(x) and got completely rekt. They couldn't sell the GPUs anymore and the used r9 290(x) were way too cheap to compete with. This time they are smarter and they just make as much as they can without investing too much while basically selling everything they produce for almost a whole year. Nvidia is about the same right now, they are just making bank without risking much. If you ever wondered why the 1070ti exists, it is basically a mining only GPU. The 1080 is horrible for Ethereum mining because of GDDR5X timings but the 1070ti has the same GPU power with GDDR5 non x. They only made this for more profit when selling to miners.... yet no reviewer called them out for this to my knowledge.
GPU prices will crash hard and the used market will have laughable low prices. These GPUs actually run undervolted, underclocked and at a low temperature the whole time because the bottleneck is the memory speed which means they are in EXCELLENT condition. Maybe their BIOS got flashed for better memory timing but you can just switch to the second BIOS or flash it back to normals. These will the GREAT to buy. Note that r9 290(x) and 390(x) GPUs should be avoided because they have such an overkill memory setup that their GPU core is the bottleneck (-> overclocked, overvolted and run at 90c+).
Well they will have a problem. Nobody will buy a 1180 if they can get a GTX 1080 for 200$ compared to something like 600$. Especially if Nvidia releases the 1180 while mining is still a thing. I guess they will wait with the 1180 or release a 1280 shortly after mining died with a really competitive price (if AMD can't compete they will just compete with themself...). Just think of the GTX 970 which got released with a 299$ MSRP and got actually sold at that price!
This got way longer than expected... well I hope you learned something. Just comment if you want to correct something or have a question. Most of these are assumptions based on thinking so none of this has to happen but is in my opinion very likely to happen.
tldr; Because Ethereum has almost all of the GPU power behind it and will fire all the miners in around Q4 2018 with the switch to proof of stake there will be a huge excess of GPU power and prices will crash hard.
edit: if you only care about numbers and facts and want a better distinction between assumptions and facts read my other comment https://www.reddit.com/pcmasterrace/comments/7rqkmo/clearing_up_some_confusion_about_cryptocurrencies/dsyzg6b/
submitted by Karavusk to pcmasterrace [link] [comments]

Lol did I just fry my gtx980?

Picked up my msi Gtx980 gaming 4g last night and things were awesome.
Felt like giving it a lil overclock and mining some bitcoins overnight.. Solely to do a stress test.. Watched the temp for roughly half an hour... 76C @ 1540mhz didn't touch memory...
Fall asleep wake up 5 hours later pc is "off" with power light flashing.. Reboot.. Hardware missing cannot boot windows..
3 Reboots later boots up gpu is 930mhz... Try bringing up the frequency gpu drops to 130mhz... Ran arma3 on ultra and received 60fps (vsync)...
Tried rebooting again bsod.. Again.. Bsod.. Bsod.. Bsod.. No information on the screen. Gonna switch to integrated when I get home and reinstall drivers.. You guys think the mining partially fucked it?
EDIT: Reinstalled the drivers and everything is fine.. The GPU Underclocks itself when not in use, could also be my motherboard's settings.. Tried mining again and everything was fine... Hahahahha XD
submitted by maverex to pcmasterrace [link] [comments]

[Build Help] my first built PC: bitcoin rig two 7970s with occasional gaming

I'm building mainly a bitcoin mining rig with occasional gaming, and would love your help. I've never built a PC before but look forward to it!
Two 7970s have been purchased for a total of $900 including tax because it was good sale. Now the rest I'd like lots of input to decide upon. I want it to last as long as possible. Am Canadian (in Toronto) and a student. Willing to put additional $600-$1100 max into rest, nothing else bought. The main thing is it will be running 24/7 at max settings, and would shut down mining for occasional gaming.
A very knowledgable technician at TigerDirect gave me a great start but now I need to get more feedback. Looking for advice what to get, from where, and why.
PCPartPicker part list / Price breakdown by merchant / Benchmarks
Type Item Price
Video Card XFX Radeon HD 7970 3GB Video Card $407.13 @ TigerDirect
Total
Prices include shipping, taxes, and discounts when available. $407.13
Generated by PCPartPicker 2013-06-06 09:32 EDT-0400
Run down:
• COOLING? - air or liquid? - liquid is ruled out due to expense, since it's been explained to me it costs ~$600 for the assembly to liquid cool the cards directly. Seems pointless to get CPU cooling for the 1-10% time I'd use it for gaming.
• MOBO? - this is the biggest part want help with. I have no concept how to select between the suggestions Sabertooth Z77 (Intel) or Gigabyte 990FXA-UD3 (AMD). My understanding is the bus capacity is 16X for two cards is good just for gaming I'd do, otherwise wouldn't matter for bitcoin. I'm willing to invest an additional $100 above these if the quality of the parts will really last longer, but I don't want needless expense.
• CPU? - i7 ruled out as unnecessary expense, I'd get i5 if Intel. AMD is more power-efficient, but for at least the next 6-12 months I won't care, my rent includes electricity. My understanding is any performance difference of i5 vs. i7 would be A) neglible at 15% improvement, and B) only for video editing which I'd only do a few hours per year max, or never. If I were to get an AMD, an AMD FX 8320 was suggested. It's 3.5 Ghz for $160. Need help choosing between AMD or Intel. OVERCLOCKING - Also note my friend is considering overclocking speed of cards, underclock memory, and overclock the core for me.
• CROSSFIRE - desired. don't know much about.
• POWER SUPPLY? - my understanding is Corsair is a good reliable brand, for a few bucks can get 3 years warrenty for over-the-counter. know there's 4-6 tiers like AX HX TX CX, was planning on getting cheapest CX unless I understand the expense is really justified. i'll stay away from no-name brands, but don't know others. Also dunno exactly about power consumption or margin of error.
• CASE? - a case that fits, so please note the massive size of these cards, consumes 2 slots. Want lots of air cooling to mitigate costs. Aesthically also highly considering a plain white exterior to be painted... but the whole case is lowest priority for now, I want it mining bitcoin soon exposed directly to air for a short while, then can leisurely acquire case.
• MEMORY? - 8 GB was suggested, Kingston, Hyperx 1600Ghz. no clue what matters here.
• HARD DRIVE? - I want SSD, Samsung's 250 GB for $230 was suggested. I can use a spare regular harddrive to begin with to get started, add after.
Have looked at TigerDirect and NewEgg, can also look at NCIX.
submitted by ian-nastajus to buildapc [link] [comments]

[USA-MD][H]3x ATI 5830's [W]$, AM3 CPU, Offers

Since it really no longer makes sense to mine bitcoins, I am looking to sell off the three 5830's I have. This is the card. I have run them overclocked w/ memory underclocked at full load for around 3 months. The coolers are great and gpu's never got above 80 c, even with a 200 mhz core overclock. I'm looking for around $75+shipping per card or a higher end AM3 cpu like a phenom II x4/6, or whatever other offers you have. I also still have the original boxes and their contents, but they are MASSIVE and would be a hassle to ship.
submitted by Mr_That_Guy to hardwareswap [link] [comments]

Need help tweaking 7970s - stuck at 500-550 kh/s

I finally stopped being lazy and booted up my old 7970s that I used to mine Bitcoins. I am mining Tagcoins right now and I believe it will be up there along with LTC and BTC. It's only about a month old and is already at $1.7 and it's backed up by a multimillion dollar company. Read more here:
https://bitcointalk.org/index.php?topic=317408.0
Anyway a little history about these 7970s:
They were never overclocked.
They were always undervolted to 950 mv and memory underclocked to 100mhz
The temps were always below 70C with huge box fan blowing at them.
Current Settings for Scrypt Mining: undervolted to 1000 mv and stock settings for clock / mem at 925 mhz / 1375 mhz. These are Asus Reference cards (bought them at launch to mine BTC).
CGMiner Settings:
cd cgminer C:\Users\Bitcoin\Desktop\cgminer-3.7.2-windows\cgminer.exe --scrypt -o stratum+tcp://tagmining.com:3333 -u xxx.xxx-p password -o stratum+tcp://wk5.botpool.net:5933 -u xxx.xxx-p password -I 13 -g 2 -w 256 --thread-concurrency 8192 --shaders 2048 --temp-overheat 80 --gpu-engine 925 --gpu-memclock 1375
I am using the following drivers:
13.11 Beta Catalyst Drivers
2.9 SDK
CGMiner 3.7.2 (latest to support scrypt mining)
Computer Specs: i7 2600k 3.4Ghz Stock MSI Big Bang Marshall 3 8GB DDR3 RAM ASUS 7970 X 4 Reference Cards 1300W CoolerMaster Gold PSU 2TB HDD 7200RPM
Any help would be appreciated!
CGminer Screenshot:
http://i.imgur.com/PNrFA3U.png
submitted by AperturePCs to litecoinmining [link] [comments]

My computer is repeatedly crashing to a black screen (not overheating). Further details inside.

It crashes to a black screen seemingly at random. I'm sure it's not overheating because A) the temperature is well within reasonable bounds and B) I can mine bitcoins for hours and nothing happens. It's also not the power supply, it's a name-brand high-end power supply with plenty of wiggle room in terms of wattage.
Due to this black screen, I can't gather error information from the blue screen I'm pretty sure it's trying to display. Can anyone A) tell me how to gather this data and B) subsequently diagnose the problem, given the error data?
(I'm pretty sure this isn't a software problem, it also crashes sometimes when going through the BIOS POST messages. Or whatever the equivalent is these days.)
Detailed description of the crashes:
Screen goes black, seemingly at random. Whether I'm mining bitcoins, playing tf2, watching a youtube video or trying to goddamn boot it after it's crashed.
Sound continues briefly, then stops, and starts to repeat, as it does in a BSOD.
It doesn't turn off immediately by itself (does after around 30 seconds of waiting, much longer than it would take to do a full memory dump on these specs.) and nor does it respond to the power button or hard reset button being pressed.
System starts back up, windows says that it shut down unexpectedly and offers safe mode, etc. No dialog is offered to diagnose system problems, however.
Specs:
etc etc, the rest of the parts are all name brand and checked for reliability.
I'm using a clean copy of windows 7, 64 bit.
Thanks in advance!
*yes I'm aware this motherboard is underclocking my memory to 1333mhz. This shouldn't be an issue, if anything it should make it more stable. It's due for an upgrade anyway.
submitted by ProfessorPoopyPants to techsupport [link] [comments]

Need help tweaking 7970s - stuck at 500-550 kh/s

I finally stopped being lazy and booted up my old 7970s that I used to mine Bitcoins. I am mining Tagcoins right now and I believe it will be up there along with LTC and BTC. It's only about a month old and is already at $1.7 and it's backed up by a multimillion dollar company. Read more here:
https://bitcointalk.org/index.php?topic=317408.0
Anyway a little history about these 7970s:
They were never overclocked.
They were always undervolted to 950 mv and memory underclocked to 100mhz
The temps were always below 70C with huge box fan blowing at them.
Current Settings for Scrypt Mining: undervolted to 1000 mv and stock settings for clock / mem at 925 mhz / 1375 mhz. These are Asus Reference cards (bought them at launch to mine BTC).
CGMiner Settings:
cd cgminer C:\Users\Bitcoin\Desktop\cgminer-3.7.2-windows\cgminer.exe --scrypt -o stratum+tcp://tagmining.com:3333 -u xxx.xxx-p password -o stratum+tcp://wk5.botpool.net:5933 -u xxx.xxx-p password -I 13 -g 2 -w 256 --thread-concurrency 8192 --shaders 2048 --temp-overheat 80 --gpu-engine 925 --gpu-memclock 1375
I am using the following drivers:
13.11 Beta Catalyst Drivers
2.9 SDK
CGMiner 3.7.2 (latest to support scrypt mining)
Computer Specs: i7 2600k 3.4Ghz Stock MSI Big Bang Marshall 3 8GB DDR3 RAM ASUS 7970 X 4 Reference Cards 1300W CoolerMaster Gold PSU 2TB HDD 7200RPM
Any help would be appreciated!
CGminer Screenshot:
http://i.imgur.com/PNrFA3U.png
submitted by AperturePCs to BitcoinMining [link] [comments]

Video card errors, driver crashes, can't isolate cause

Symptoms: I have a GTX 770. Periodically while I'm using it (from every 30 seconds to 30 minutes) the screen freezes, goes black, and then comes back with a system tray warning appearing notifying me that Windows has recovered from a display driver crash. While browsing the web, text sometimes renders a little fuzzy and there are dots on the screen. When I test the card with OCCT's error test, it racks up hundreds of thousands of erros in minutes.
I also had a couple problems with it about a year ago just after I bought it. The display drivers would crash once every few days, but it would crash badly and I'd have to restart Windows. This only happened a few times over a couple weeks and then went away, then I had no problems for a year, so I never did much about it. Then suddenly problems began happening again.
Troubleshooting: I've updated the Nvidia drivers to the latest (and again since new versions have come out while dealing with this). I even updated the card's BIOS. Nothing changed.
The card isn't being stressed when this happens, there's nothing open other than the browser, there's almost no load at all. In fact when I do try to play a game on it, it seems to work OK. Temperatures are low, less than 45C. It's virtually dust-free and well ventilated. I've tried reseating it several times, nothing changed. I see no signs of any bitcoin mining malware or anything like that.
The card is overclocked out of the box. I tried underclocking it, down to the reference card values and even below that, nothing changed.
I do not get any of these symptoms when using the Intel integrated graphics in the CPU, or when using an older PCI-Express card in the same slot. I tried putting the 770 in an older PC too, and I saw no problems there and OCCT reported 0 errors after several minutes. It seems only to be this card in this computer.
I saw a suggestion that memory errors could be responsible, but my RAM seemed to pass memtest86 with no problems.
The power supply is 860 watts, seems to be perfectly adequate for a single GPU.
System specs:
I can't figure out what to blame here. Everything seems to operate without errors independently, but not together. Any suggestions?
Edit: The errors do not occur with the generic driver that Windows installs, but it does occur with both the older driver supplied by Asus (327.23) and the latest one (340.52). But the card is also not being fully utilized with the generic driver, getting 2 FPS in OCCT instead of 60.
Edit 2: I've been obsessed with fixing this enough that I even reinstalled Windows to see if a fresh installation with absolutely nothing except for the drivers and OCCT would still produce errors. It did work once upon a time, after all. OCCT still reported errors, the drivers began crashing again. Restoring Windows was no picnic either, upgrading to 8.1 sabotages the whole restore process when you're trying to start from a Windows 8 installation disk.
I didn't mention that I already RMA'd it to Asus. They sent the same one back (or at least I think they did, it has the same serial number and no explanation came with it). I said maybe I'm dumb and there's nothing wrong with it after all, but after more and more testing, I can't figure out what else it could be.
submitted by Sostratus to techsupport [link] [comments]

How to Overclock and Undervolt your GPU- Finetuning (PART 2) Mining Grin Coin - Hashrates and Overclocks (Update) Should You Buy A USB Bitcoin Miner In 2019? Best Overclock Settings for Zcoin MTP  HiveOS  Benchmark Testing  Zcoin Add-On #2 RTX 2080 Mining Undervolting

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How to Overclock and Undervolt your GPU- Finetuning (PART 2)

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