Mining profitability has fallen as the price of bitcoin drops. Will mining end and when can it happen How much miners earn

Mining in Russia will become unprofitable if 1 bitcoin costs less than $ 5900

About 5,000 devices for mining are imported into Russia every month, according to RACIB. Despite the large fluctuations in the rate, mining is still an attractive investment, but from the perspective of professional use.

Even at the current rate of $ 8000 per bitcoin, mining remains profitable. However, if the pessimistic forecast of Goldman Sachs bank is realized, the "mining" of cryptocurrency in Russia will be on the verge and beyond profitability: the bitcoin rate may fall below $ 5900 per unit, according to the technical strategist at Goldman Sachs Sheba Jafari. According to the author, this is exactly the border, the achievement of which will make mining practically unprofitable even in comparison with bank deposits.

Based on the complexity of the computing network (the amount of computation to create one digital coin), the critical BTC / USD rate, at which mining may become unprofitable, depending on many variables, is up to $ 5900 per 1 bitcoin. This indicator includes not only the cost of the devices themselves, but also the costs necessary for its operation: electricity, cooling, rent, maintenance of staff, transport, Internet and depreciation.

Moreover, the bitcoin rate affects not only the profitability of its own mining, but everything and other cryptocurrencies, which are largely associated with its rate as a flagship cryptocurrency.

Hardware base

A bit of history, so that later it would be clear where the difficulties arise when choosing mining equipment. After the number of participants in the decryption of cryptocurrency blocks became more and more, there was not enough computer power. Miners adapted video cards for decryption, having the most suitable architecture and maximum powerful computing power. Soon, the complexity of the network increased and miners began to combine video cards, so mining farms appeared. On average, one farm consists of 8 video cards, the exact number depends on the capabilities of the motherboard and operating system.

Due to the constant increase in the complexity of the network, technological progress could no longer significantly increase the speed of calculations, so the number of farms began to grow. Owners of 100 - 1000 mining farms began to appear in the world, and huge areas were required to accommodate them.

Chinese factories for the production of computer components reacted to this. They created specialized processors that quickly performed mining operations for certain types of currencies, and thus ASICs (application specific integrated circuit - special purpose integrated circuit) appeared. They were created for industrial miners. ASICs were easier to place, easier to configure, easier to maintain, and much more efficient than video cards for their (emphasize!) Cryptocurrency.

A limited number of cryptocurrencies can be mined with ASIC devices - Bitcoin, Litecoin, Dash and Siacoin. Many other cryptocurrencies with a similar algorithm can also be mined on ASIC devices, while the rest are created on farms with video cards.

Mining profitability

Profitability largely depends on the cryptocurrency exchange rate and network complexity. At the beginning of 2017, when the bitcoin rate was around $ 700, the profitability of one ASIC or a farm on video cards was $ 9 and $ 7, respectively. At the end of the year, when the rate was $ 19,000 for 1 bitcoin, the profitability reached record highs of $ 50 and $ 40 per day, but the dependence of the rate and profitability is not direct, since the complexity of the network must be taken into account.

At the same time, the costs can be easily calculated based on electricity consumption, the average power consumption of one device (mining farm or ASIC) is about 1.3 kW * hour, with an electricity cost of 6 rubles per kW * hour, one device burned $ 3 of electricity per day, 2.

Price volatility

The dynamics of changes in the cost of mining equipment is one of the most important details of attention when buying. Sometimes the difference in price in one day can reach 40,000 rubles. The reasons for such jumps are several aspects: the BTC / USD rate, the excitement - in case of high demand, the manufacturer cannot provide the desired number of devices, but he does not overstate the price, outbid prices begin to dictate - hence the prices in the rest of the market. End stores see this, and insuring the risks associated with delays in their subsequent orders, they also raise their prices.

All these reasons, including, are interconnected, as soon as the BTC / USD rate rises, the efficiency of mining increases, the payback period falls and this attracts new buyers of mining equipment. Stores selling equipment and meeting the excitement raise prices and place new orders at the manufacturer's plant. The plant is taking orders for 3 months in advance. New owners of miners, connecting new devices to the network, increase the computing power of the network and the software automatically increases the complexity of the network, mining efficiency decreases, the payback period increases, the number of new buyers of mining devices decreases, prices for miners drop back.

For clarity, you can look at the market over the past few months. Until October 2017, the cost of mining equipment was almost constant with weak growth in accordance with demand (for example, the popular bitcoin miner Bitmain AntMiner S9 in January 2017 in Russia cost an average of 150,000 rubles, in October 190,000 rubles). But since November 2017, when the BTC rate began to rise rapidly, the profitability of mining has grown significantly, the BTC / USD rate has grown every day, each miner brought more USD per day and, accordingly, its payback period has significantly shortened.

All this immediately affected the market, all interested masses of people made a decision to buy miners, there was a shortage of offers.

In December 2017, when the BTC / USD rate had peak values, the payback period of the most popular bitcoin miner Bitmain Antminer S9 dropped to 4 months, there was a high demand for it, but in fact it was unrealistic to buy it - there were offers to sell the Bitmain Antminer S9 miner at cost over 350,000 rubles. Equipment suppliers, collecting orders in Russia and placing them in China at the end of January, taking into account the New Year holidays in China, which take place in early February, predicted a shortage of equipment in Russia for the entire period of January-February.

More powerful miners coming out

A sharp drop in the bitcoin rate dramatically affected the cost of ASICs. But even earlier, another factor acted - the appearance of new models. Now prices for mining equipment in Russia have dropped to the level of the summer of 2017. There were offers with a cost lower than prices in China, since resellers in Russia were afraid of a further fall, and sold equipment at a purchase price, since some of them purchased large quantities back in October, when the purchase price for February was lower than the current cost in retail stores in China:

- Bitmain Antminer S9 with a power supply - an average of 160,000 rubles (in China, in stock - 170,000 rubles)

- Bitmain Antminer L3 + with power supply - 145,000 rubles (in China, in stock - 150,000 rubles)

- Whatsminer M3 with power supply - 125,000 rubles (in China - 130,000 rubles)

Bitcoin... Chinese farm owners found an interesting way: seeing the high excitement and volume of orders, they began to upgrade the local mining pools running on Bitmain Antminer S9: the current devices were sold, and the place was reserved for the new Bitmain Antminer S11 miner, which had not yet gone on sale. Batches of used Bitmain Antminer S9 were shipped to Russia. The devices have been pre-checked, serviced, cleaned and packaged like new.

It is also worth noting that the Chinese side of processing equipment orders has a certain chain of suppliers, dealers and the manufacturer itself. All of them are extremely closely following the excitement and rate of BTC / USD, changing prices at lightning speed even in the process of making a deal.

The world of miners was in for an unpleasant surprise, the new Bitmain Antminer S11 is significantly more powerful than the Bitmain Antminer S9 (according to expert estimates, a 30% increase in power is expected). During their installation in large Chinese pools, there was an increase in the complexity of mining, which led to a drop in the profitability of existing farms. Taking into account the decrease in the BTC / USD rate in 2018, the total decrease in profitability in the New Year was fivefold compared to December 2017.

Dash... An even more dramatic story happened with the Dash cryptocurrency mining devices, which appeared in September 2017. At the time of May 2017, the Dash cryptocurrency was very stable and was mined only on video cards, the miners consistently earned about $ 1000- $ 1500 per month on one farm. The excitement began with the announcement by iBeLink in June 2017 of a new ASIC miner for Dash - DM11G, its computational abilities predicted monthly returns in the region of $ 5,000- $ 10,000 from one device and it was the only ASIC miner for Dash cryptocurrency.

IBeLink opened pre-orders for this device for a short time in July with a shipment date in September 2017. The excitement contributed to the rapid redemption of all quotas for the production of DM11G and the retail market for ASIC miners in Russia flooded with offers to sell the DM11G at prices of 1 million rubles for 1 device with delivery to September. But in mid-August 2017, when retail stores were already awaiting their orders for iBeLink DM11G, the Bitmain Antminer D3 device with a delivery date for November 2017 appears on the site of the manufacturer's BitMain factory, which also mines Dash cryptocurrency, while about 70% faster. Later, the DR-100 device also appeared, which made the iBeLink DM11G unattractive, and retailers faced serious overstocking of this weakest mining device for Dash cryptocurrency.

Retail buyers who did not pay in advance postponed the purchase until the situation stabilized. And those who paid for their orders instantly connected new devices to the network, noting high efficiency and monthly income in the region of $ 6,000. But the number of new devices on the network caused a sharp jump in the complexity of calculations, while the Dash did not increase against the dollar. The payback period for one device increased from 3-4 months to 1 year, and retail prices for ASIC miners on Dash went down. Many retailers were forced to close down. could not fulfill the conditions for investors financing orders of batches of devices for specific profits in a short time. As a result of all the events, the phased announcement of ASIC miners for Dash, a sharp increase in network complexity and a fixed Dash / USD rate, the profitability of Dash mining decreased by almost 3 times compared to the beginning of September 2017.

Mining is still in trend

Nevertheless, the demand for the purchase of mining equipment still persists. Now Bitmain Antminer S9 and iBeLink DM11G bring customers daily income of $ 9-11 and $ 3-5, respectively. Of course, those who bought S9 at 350,000 rubles and more expensive than now, iBeLink DM11G, counting on profitability of $ 120 and $ 50 per day, faced significant lost profits and a sharp lengthening of the payback period. But there is still a demand for miners, and many players also resort to the services of traders or try to play on exchanges themselves in an attempt to increase income. As a result, this leads to the expansion of professional participants in the crypto community.

Along with the collapse in bitcoin prices, mining profitability is falling, notes Bloomberg columnist Tim Kulpan. If no one stops mining, they risk serious losses and find that they are wasted.

Bitcoin's plunge earlier this week by 70% from December highs pushed yields to near zero. Bitcoin price dropped to $ 6,000 on Tuesday. Under these conditions, only the largest and most efficient farms make any profit, but even they are teetering on the edge.

It is highly likely that miners who are not among the four largest pools that buy equipment at wholesale prices (they hold 67% of the total computing power of the network) are already losing money. The "arms race" among the participants has led to the fact that since December 18, when the cost of bitcoin exceeded the $ 19,000 mark, computing power jumped by 40%. Blockchain.info data shows that block confirmation difficulty has increased by 51% since then.

Miners put up with an incredible increase in difficulty (it skyrocketed 18x in two years), as a 21x increase in the value of bitcoin over the same period compensated for the costs and justified the investment.

If Bitcoin stayed at the 50-day moving average at $ 13,200, the average miner could expect to profit $ 80 per week with current computing power and complexity. This estimate is based on the bold assumption that it is using a Bitmain Technologies Antminer S9 with a claimed 13.5 TX / s (retail price of $ 2320) - one of the most advanced systems available on the market - and is purchasing electricity from China at wholesale prices. ... The profitability of old equipment will be lower, although many of those systems are still in operation.

If prices do not rise, then the average miner will lose $ 3 per week at current levels. Mining syndicates such as Antpool - they buy hardware at wholesale prices - will continue to make money, but their profits will drop 90% from the 50-day moving average.

The only way to increase profitability is to wait until prices rise or some miners leave the market and competition falls. History shows that the latter is possible, but unlikely. In fact, those who have invested millions of dollars in bitcoin farms are holding on to their businesses in the hope that competitors will pass first.

If this happens, then only the most persistent players will remain on the market, who will enjoy their legitimate prey. Otherwise, a sad fate awaits them all.

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What is mining?

What are the requirements for the miner to access the Internet?

Mining traffic depends on the number of devices, their performance, as well as the minimum complexity of decisions taken by the pool. For one properly configured device, the traffic is no more than 10 Kb / s, that is, a Dial-Up connection is enough, the main thing is its stability.

Miners who do not have a stable wired connection often use 3G modems with the cheapest unlimited tariff. If you have several tens, or even hundreds of devices, you will need a "thicker" channel.

How much do miners earn?

The Bitcoin system is decentralized, it contains the principles of changing the difficulty of generating coins, depending on the total power of the system. The difficulty changes every 2016 blocks so that on average six blocks are solved per hour. Thus, the difficulty changes approximately every 14 days. But if the power of the network increases, then the complexity changes earlier (increases), and if the power of the network decreases, then the complexity changes later (decreases).

You can calculate your earnings at. You just need to enter your speed in Mhash / s and press "Calculate". If you don't know your speed, you can calculate it by the name and number of devices in this table.

The Bitcoin course does not depend on the complexity, this complexity indirectly depends on the course. BTC buyers don't care how difficult it was to generate these BTCs.

You can get acquainted with the current course at the link, where:
Latest Price - last executed trade
Bid - demand
Ask - offer
Also, you can follow the course in real time on other sites, the most complete list of them can be found in the article.

How do I manage my farm remotely?

In operating systems of the Windows family, you cannot use Remote Desktop (RDP) to manage farms, because he works with his virtual video card. By stopping mining, you will not start it again, because video cards will not be detected correctly. Use third party tools like TeamViewer, * VNC and others. Under linux (Ubuntu, XUbuntu, Debian) lightGDM does not allow to get video card resources in the remote console. Everything works fine with GDM. Checked with cgminer, diablo.

How to start mining in solo mode?

Mining Bitcoin in solo mode is now almost impossible unless you have your own datacenter with several thousand modern ASIC miners. However, for some, solo mining is still effective.

Let's describe the process using Bitcoin as an example:

First, follow the path "% appdata% \\ Bitcoin" (for example, in Windows 7: "C: \\ Users \\ username \\ AppData \\ Roaming \\ Bitcoin"). We create a text file. We enter three lines into it:
server \u003d 1
rpcuser \u003d user
rpcpassword \u003d pass
(without quotes, make up user and pass yourself). Then rename the file to "bitcoin.conf"

Setting up cgminer:

1. Go to the folder with cgminer

2. Create a txt file and enter into it:

Mining in pools

What is a pool?

Currently, everyone who finds a block receives 25 BTC. It is very difficult to do this on your own, unless you have very large computing power. There are pools to solve this problem; there can be many of them in the network. The pool brings together miners for general block search and resolution. For more information on co-generation pools, their modes of operation and examples of setting up miners, see the article.

What happens if two miners enter the pool under one worker?

It all depends on the pool. Most pools allow multiple connections under a single worker. The pool simply takes into account all decisions from multiple devices in the same way as for one.

Do not forget that the worker on the pool is tied to a specific account, and the owner receives all the income. It doesn't matter where the devices are located or who owns them.

I mine in a pool and find a block. Can I not give it to the pool and take all the BTC for myself?

No, it won't work. Each miner in the pool looks for a block according to server tasks, from a technical point of view, this is equivalent to the fact that all devices sending solutions belong to the pool. When any of the miners connected to the pool finds a block, the reward transaction goes to the pool wallet. And only after that, the software that keeps track of the work of miners distributes the reward between them. But if the owner of the pool is a scammer, he can appropriate all the found bitcoins for himself, and you cannot do anything about it.

The owners of most large Bitcoin pools are known, while small fork pools are often anonymous. Therefore, when choosing a pool, be careful and withdraw the mined to your wallet as often as possible.

How can a miner check the integrity of the pool, that he gives all transactions in the task and does not ignore the unwanted ones?

At the time of generation, the miner cannot check what is included in the block and what is not, because only the task for forming the block header comes to generation. The miner can find out about the bad behavior of the pool only after the fact, after receiving the finished block.

What is pool hopping?

Pool hopping is a deliberate transition from pool to pool in order to catch a period of luck ("short" blocks) and thus earn more coins than would be possible if you were constantly working on one pool.

In fact, this is cheating, with which the pools are fighting by introducing delays in the output of statistics, introducing rating systems and other methods. As a rule, on pools with a PPLNS accrual system, such jumps do not justify themselves, since even a short absence of a miner on the pool reduces his income for a long period of time (4-12 hours).

Questions about ASIC miners (SHA256 and Scrypt)

What is an ASIC miner?

ASIC (an abbreviation for Application Specific Integrated Circuit) is a microcircuit specialized for solving a specific problem. Unlike general-purpose integrated circuits, specialized chips are used in a specific device and perform strictly limited functions that are specific only to this device. An example of an ASIC is a microcircuit designed exclusively for controlling a mobile phone, hardware encoding / decoding microcircuits of audio and video signals (signal processors).

For mining, ASICs are used because, due to a strictly defined structure, the process of manufacturing microcircuits is greatly reduced, and also because of the narrow specialization of chips, the productivity and energy efficiency of mining increases.

What is the difference between Scrypt ASIC and SHA256 ASIC?

The Scrypt hashing algorithm was designed specifically to counteract faster devices - first video cards, then FPGAs and ASICs. Therefore, it is "more complicated" than SHA256 (more number, more rounds of calculation) and much more RAM is required to calculate it. This makes the production of such ASICs more expensive.

What is Dual miner?

This is a miner that can carry out calculations simultaneously using two hashing algorithms - Scrypt and SHA256. The developers have placed computational cores on one die for calculating both algorithms, but each type of core can only calculate according to its own algorithm. This makes such a device universal, but greatly increases the cost of production and heat dissipation, which does not in the best way affect the return on investment. There is now only one company producing this type of ASIC - formerly Gridseed, now SFARDS.

What are ASIC miners?

Devices for mining are available in several form factors, based on different categories of buyers - compact, home and professional.

Compact miners are usually plugged into a USB port and powered through it. In comparison with the "older brothers", they are the smallest and weakest. This is how the first generation chips from ASICminer - one of the first manufacturers of ASICs for mining - called USB Block Erupter look like.

Its characteristics are: 300 Mh / s, 1.05 V, 335 MHz, 6x6 mm. and 4.2 W at 1 Gh / s.

Later, compact miners were produced on chips from Bitfury and Coincraft, and even the Antminer of the U * series, but they were not in demand, as they brought purely nominal income and eventually turned into souvenirs.

Home and professional miners essentially differ only in size, body type and power consumption, all other characteristics are identical.

Home devices tend to have cheaper cases and weak fans, they are smaller and lighter, and an average 600-700 W PSU is enough to power them. Typical representatives of this class are Antminer S1 / S3 / S5.

"Professional" miners are designed to be placed in data centers and are usually mounted in 19 ”server racks. They have built-in power supplies (sometimes several) with a capacity of more than a kilowatt, a well-thought-out cooling system and powerful server fans, which are very noisy but efficient. Typical representatives are Antminer S2 / S4, Terraminer from Cointerra, Coincraft Rig from Bitmine.

ASIC miners are compared according to the following characteristics:

1) Chip technological process

2) Performance in Gh / s (gigahashes per second) or Tx / s (terahashes per second), where 1 Tx / s \u003d 1000 Gh / s)

3) Power consumption at 1 Gh / s - for example, 1 W / Gh / s

4) Cost of 1 Gh / s - for example, $ 0.5 per Gh / s

5) The average temperature of the chip is - ° C (depends on the technical process, on average 40-60 ° C)

Who makes mining ASICs?

Own ASIC chips and ready-made devices based on them are now being produced (or produced) by several companies:

• Bitmaintech
• Bitfury
• Avalon
• Innosilicon (Scrypt)
• SFARDS (Dual miner) - no longer produced
• Spondoolies-Tech - are no longer produced
• KnCminer - are no longer produced
• ASICminer - are no longer produced
• Zeus (Scrypt) - no longer produced

What are the most reliable and popular miners now?

Miners from Bitmaintech are rightfully considered the most deserved for Bitcoin mining, since the company has never seriously let its customers down. Bitfury is also reliable, but not over-the-counter.

The reward is distributed in the same way as on the pool with PPLNS, but with a slight difference - the reward does not stay on the pool for a while, but goes straight to your wallet. P2pool works on the principle of "his own master".

By the way, it is p2pool that provides real decentralization - the most important reason for the success of Bitcoin.

What software is used in ASIC miners?

As you know, each manufacturer has its own firmware for the miner, but almost all include CGMiner or BFGminer due to the flexibility of settings and support for all methods of connecting to the pool.

The firmware of most modern ASIC miners is based on Linux and has a convenient web interface that allows you to manage network settings, connect to pools, adjust frequency and voltage, view detailed statistics of the miner, monitor malfunctions, update firmware, and much more.

Bitmain Antminer S5 interface:

There are numerous custom firmware versions, each with its own peculiarities, for example with support for extranonse.subscribe or a lot of settings.

How to overclock ASIC miners?

Most miners have overclocking capabilities, the potential of which depends on the manufacturer and chip technology. Antminer from factory frequencies are usually overclocked by 10-30%, while chips from KnC sometimes manage to overclock almost twice. But be extremely careful with overclocking miners, as the frequency increases power consumption dramatically. Chips or power circuits may not withstand overclocking, as a result, you can lose both the miner itself and other equipment.

On some ASIC miners, the operating frequency is deliberately lowered to improve stability (for example, Bitmain Antminer S2 and S4). As a result of overclocking, you can get a much more productive, but less stable miner.

What PSU to use for ASIC miners?

In modern devices for mining, 6-pin power connectors have become an unspoken standard, similar to connectors for connecting additional power to PCI-E video cards. They were chosen for their small size and maximum compatibility with mainstream power supplies.

In choosing the perfect power supply, the opinions of miners (people) differ. Some people prefer used server power supplies because of their stability, good efficiency and low prices, while others prefer ATX power supplies for home PCs due to the fact that depreciation (gradual reduction in price and wear and tear) hardly affects them. When choosing a power supply for a miner, you need to look not at the total power of the PSU, but precisely along the + 12V channel. Here the choice depends only on you.

To start an ATX power supply without a motherboard, you need to short-circuit 2 pins as shown in the image:

GPU mining and archive

What video cards are suitable for mining?

Older models of Radeon HD 5xxx, 7xxx and R9 xxx series show their best performance in mining.

Old NVIDIA video cards, due to their architecture, show a low level of performance in this type of computing. But starting with the GTX 7xx series based on Maxwell architecture, with the latest drivers, Nvidia cards are not inferior to the Radeon and even often surpass them in energy efficiency.

For GPU mining, / Nvidia CUDA must be installed on the computer, either with a driver or separately.

What cryptocurrencies can I mine on video cards?

Since Bitcoin, Litecoin and their direct forks using the same hashing algorithms (SHA256 and Scrypt) are already mined on specialized devices (ASICs), only those cryptocurrencies remained for video cards where ASIC development is still impossible or unprofitable.

The GPU can still mine altcoins with the following algorithms:

X11, X13, X15, Scrypt-N, Scrypt-jane, SHA-3 (Keccak), Quark and all the others for which there is already GPU mining software.

How many graphics cards can I use on one computer?

The driver is limited to a maximum of 8 cores, that is, 8 video cards or 4 dual-processor video cards. It should be noted that the more cores are used, the more unstable the system behaves. Running and managing from 6 video cards on 1 computer can already be quite problematic, and it will not work on every motherboard, OS and driver version. Also, the requirements for the power supply are increasing, risers are most often required, preferably with additional power supply in order to reduce the consumption from the PCI-E bus of the motherboard. Also, as the number of GPUs increases, more RAM needs to be installed.

What to do if one or more of the installed video cards is not displayed in the miner?

There are many options. why this can happen. You can remove the graphics card from devices and let it re-find. If it does not help, then check if there are any remnants of deleted or rearranged cards in the system that are causing errors.
There are times when the video card goes into "hidden devices", then before deleting them, you need to configure their display as follows: right-click on the "My Computer" icon, select "Properties" (or Win + Break). In the system properties, go to the "Advanced" tab (for Vista, 7, 2008, etc., in the computer properties, you first need to click "Advanced system settings") and at the very bottom, click the "Environment Variables" button. In the system variables, create the DEVMGR_SHOW_NONPRESENT_DEVICES variable and assign it the value 1. Then open the device manager, turn on the display of hidden devices in the "View" menu and remove hidden video cards.

After updating the driver, the speed dropped, what should I do?

Starting with driver version 11.12, the problem of 100% load of the CPU core has been fixed, but the mining speed has dropped slightly compared to version 11.11 and earlier. To restore the previous speed, unzip the contents of the archive to a disk into the Windows folder with a replacement. If the system informs that the file is busy with the process, then close the miner program. There are two folders in the archive, for each OS bit.

On one of the video cards, the performance is significantly lower

This problem can occur on the "first" video card that displays an image on an active monitor, but the monitor is not connected to it.

In this case, you need to connect a monitor or a "dummy" to this card. First, insert the DVI\u003e VGA adapter, then insert 75 Ohm resistors as in the diagram:

This problem occurs quite rarely on a wide variety of systems and its origin may be associated, for example, with outdated drivers, BIOS, or simply an unsuccessful combination of hardware. If you are unlucky, use the method described above.

The Guiminer window is not displayed, only the tray icon. How to fix?

This glitch is due to the fact that the miner window is displayed outside the visible limits of the screen. There are two ways to overcome it:

1. Highlight the Guiminer tab on the taskbar to make it active. Press the Win + Left arrow key combination. The miner window will appear at the left border of the screen.

2. Close the Guiminer program. Open the poclbm.ini configuration file, it is located in% appdata% \\ poclbm (for example, for Win7 it is C: \\ Users \\ user \\ AppData \\ Roaming \\ poclbm) and correct the values \u200b\u200bin the "window_position" block to the following:

"window_position": [
546,
353,
579,
318
]

After that, run Guiminer again, the problem should go away

Radeon HD 7 *** is not detected in miners on Windows XP, what should I do?

Radeon HD 7 *** is not displayed in miners, because Windows XP does not support OpenCL for series 7 *** and higher. it limitation in AMD drivers , applies to all versions of Windows XP. We can recommend using a more modern OS, for example, Windows 7 or 8.

What if the video card is not visible through the 1x riser?

Different motherboards and video cards have different attitudes towards the fact that instead of PCI-E 16x the connection goes over PCI-E 1x. For mining, the PCI-E 1x bandwidth is enough, and the PCI-E standard itself supports such a trick, but the signal to connect a video card can go through unused contacts, and the video card will not be able to work correctly. In this case, the easiest way is to close the hotplug signal on the connector with a wire, for this you need to make a revision by connecting the contacts in the connector in this way:

Blue screen of death and error 0x000000ea ati2dvag, what to do?

You need to remove the drivers and reinstall them. The nuance lies in the fact that after deletion, 2 ATI libraries remain in the Windows / system32 folder, which are not automatically deleted even by special utilities such as Driver Cleaner. They need to be removed manually and then new drivers installed.

I have problems with decreasing the memory frequency on the video card in AfterBurner, what should I do?

If downlocking RAM does not work, try to write in the configuration file

UnofficialOverclockingMode \u003d 2

If this does not help, then you can try the following technique:
We go to the Profiles folder, it is located in the place where MSI AB is installed, go to each of the video card profiles, look for the Defaults section in each profile, do this:

Format \u003d 2
PowerLimit \u003d 0
CoreClk \u003d 750000
MemClk \u003d 600000
FanMode \u003d 1
FanSpeed \u200b\u200b\u003d 25

Then we put in the same place:

Format \u003d 2
PowerLimit \u003d 10
CoreClk \u003d 820000
MemClk \u003d 300000
FanMode \u003d 1
FanSpeed \u200b\u200b\u003d 44

Voila, if there are 4 or more identical cards in the system, just start AB, set in the settings "synchronize the settings of the same GPU", the default memory frequency for all will be the maximum (default), and not the one that is written in the profile, but press the hot button profile and all set to 300mhz.