gigabyte-gtx-750-ti-crypto-mining

The Geforce GTX 750 Ti video cards based on the new Maxwell architecture from Nvidia have generated quite a lot of interest among the users mining crypto currencies thanks to their very good hashrate per watt of used power. And after we have tried a reference GTX 750 Ti board that does perform pretty well and overclocks decently to provide some extra hashrate we are now moving to trying out different non-reference design video cards based on the GTX 750 Ti. Out goal is to find the best choice for overclocking and gaining the maximum possible performance for use the GPU for mining crypto currencies. So we took a Gigabyte GTX 750 Ti (N75TOC-2GI) video card for a spin to see what we can get out of that board…

gigabyte-gtx-750-ti-stock-scrypt

The default Scrypt mining performance with CUDAminer was about 273 KHS, or slightly more than what we got with the reference card at stock frequencies of about 265 KHS. The two advantages of the Gigabyte board were the presence of an external PCI-E power connector and the much better cooling solution compared to the stock cooler. However we have found out that the TDP limit of the Gigabyte was still set at 38.5W in the video BIOS, though with the Power Target limit removal method you can get much higher limit set and avoid the Power Target functionality limiting your performance.

gigabyte-gtx-750-ti-stock-overclock

Overclocking the Gigabyte GTX 750 Ti card to +135 MHz for the GPU and +700 MHz for the video memory brought the Scrypt mining performance to about 303 KHS (the maximum stable clocks for mining), however we were hitting the TDP limit. So we have increased the TDP limit to 65.5W by modifying the video BIOS and flashing the modified version on the Gigabyte board and the result we got with the same overclocked frequencies was up to 322 KHS. Unfortunately the Gigabyte board did not allow for higher GPU frequencies that +135 MHz or to increase the GPU voltage higher than the default value. And while 322 KHS with a silent operation and 42 degrees C of the GPU is not a bad result at all, we are going to be checking out other different GTX 750 Ti boards to see if we are going to be able to get a bit more hashrate than that. So stay tuned for more updates on that…

mtgox-logo

MtGox apparently has shut down their operation, the official website is down, their twitter account has everything deleted, though the Facebook page still remains untouched with not info on what is going on. This has caused a panic among users again and the BTC exchange rate is starting to go down again, and according to an interesting document published here (if true) the rumors about stolen BTC coins from MtGox were true and the amount is really huge. Other exchanges and services have started reacting to the disappearance of MtGox trying to calm the situation and to ensure people that the problem has only affected MtGox and there are other better alternative exchanges still operating with crypto currencies…

Joint Statement Regarding MtGox

The purpose of this document is to summarize a joint statement to the Bitcoin community regarding Mt.Gox.

This tragic violation of the trust of users of Mt.Gox was the result of one company’s actions and does not reflect the resilience or value of bitcoin and the digital currency industry. There are hundreds of trustworthy and responsible companies involved in bitcoin. These companies will continue to build the future of money by making bitcoin more secure and easy to use for consumers and merchants. As with any new industry, there are certain bad actors that need to be weeded out, and that is what we are seeing today. Mtgox has confirmed its issues in private discussions with other members of the bitcoin community

We are confident, however, that strong Bitcoin companies, led by highly competent teams and backed by credible investors, will continue to thrive, and to fulfill the promise that bitcoin offers as the future of payment in the Internet age.

In order to re-establish the trust squandered by the failings of Mt. Gox, responsible bitcoin exchanges are working together and are committed to the future of bitcoin and the security of all customer funds. As part of the effort to re-assure customers, the following services will be coordinating efforts over the coming days to publicly reassure customers and the general public that all funds continue to be held in a safe and secure manner: Coinbase, Kraken, BitStamp, Circle, and BTC China.

We strongly believe in transparent, thoughtful, and comprehensive consumer protection measures. We pledge to lead the way.

Bitcoin operators, whether they be exchanges, wallet services or payment providers, play a critical custodial role over the bitcoin they hold as assets for their customers. Acting as a custodian should require a high-bar, including appropriate security safeguards that are independently audited and tested on a regular basis, adequate balance sheets and reserves as commercial entities, transparent and accountable customer disclosures, and clear policies to not use customer assets for proprietary trading or for margin loans in leveraged trading.

The following industry leaders stand by this statement:

Fred Ehrsam and Brian Armstrong — Founders of Coinbase
Jesse Powell — CEO of Kraken
Nejc Kodrič — CEO of Bitstamp.net
Bobby Lee — CEO of BTC China
Nicolas Cary — CEO of Blockchain.info
Jeremy Allaire — CEO of Circle

copper-lark-alt-crypto

Copperlark (CL or CLR) is an alternative crypto currency that is a fork of Bitcoin. CL is based on one of the most advanced hash function standards called SHA-3 (Keccak). If compared to BTC, some significant changes have been done to basic system parameters when designing the Copperlark. Transaction speed has increased by reducing the block generation rate down to 4 minutes. The cryptocurrency history shows that the number of the system users can change explosively, so the total power of computing resources can increase correspondingly. Therefore, developers have designed the Copperlark algorithm in such a way so that the complexity recalculation is made for every 360 blocks, which equals to approx. 1 time a day, allowing the network to adapt quickly to any changes that may occur.

Website
https://copperlark.com/en/

Block Explorer / Crawler
http://blockchain.copperlark.com/

SPECIFICATIONS

  • SHA-3 (Keccak) Algo
  • 27.2 Million Total Coins
  • 4 minute blocks
  • 360 block retarget
  • 50 coins per block

DOWNLOADS
Windows
Mac
Linux

Source Code
Download

POOLS
https://flylark.net/
http://dragonspool.com/

EXCHANGES
Cryptsy

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