Status Update on Our PB Mining BTC Cloud Mining Service Test

28 Feb
2014

pbmining-5-year-btc-mining-contracts

We’ve been using the PB Mining Bitcoin cloud mining service for almost a week already and since the BTC network difficulty just increased by about 21% we have decided to report on our current earnings with the previous difficulty. We have started testing the BTC cloud mining service by purchasing 1 GHS with a price of 0.0107 BTC per GHS for the purposes of our tests. Now, after the difficulty has been just increased the there is a new price of just 0.0089 BTC per GHS. This means that at the moment you can purchase 500 GHS for about 4.45 BTC as opposed to 5.35 BTC for the same hashrate last week. This price reduction with the increase in Bitcoin network difficulty is a good thing and makes the service even more attractive, so we are already considering of purchasing some more GHS.

pbmining-current-earnings-status

Let us see how things are going in terms of earnings, since our testing has started we got a small payment (they are sent every Sunday before Midnight) and currently our earnings from the 1 GHS purchased equal 0.00075838 BTC (not including the payment that was already sent). These earnings are for mining in the last 4 and a half days after we got a payment on Sunday. With the previous difficulty the estimate was 0.0001607 BTC per day earnings with 1 GHS hashrate so for 4.5 days this equals to 0.00072315 BTC and for 5 days 0.00080350 BTC. With our current earnings in between these two numbers we can say that we are very happy with the results we are getting so far. And with the update of the price for 5 years mining contract the PB Mining Bitcoin cloud mining service is getting more and more attractive option. Sure there are other alternatives available, but they try to not only sell you higher priced GHS, but also make you trade them while they mine for you in order to get higher profit (or loose more trying to do that). This service on the other hand is a long term contract where you cannot sell your purchase GHS, however they will continue to mine for you for 5 years with expected return of investment in roughly 6-8 months currently estimated.

– For more information and to try out the PB Mining Bitcoin cloud mining service…

A Bit More on the Actual Power Usage of GeForce GTX 750 Ti

28 Feb
2014

geforce-gtx-750-ti-power-usage-test-setup

The GeForce GTX 750 Ti series of graphics cards based no the new Nvidia Maxwell architecture have really captured the attention of crypto currency miners due to their good performance (hashrate) per watt. Nvidia is advertising these cards to have 60W TDP, however we have discovered that the actual TDP limit for the power target set in the video BIOS of these cards is 38.5W…

geforce-gtx-750-ti-power-usage-results

This made us dig into the matter a bit more in order to see how much power actually does a GeForce GTX 750 Ti draw from the motherboard (a reference GT 750 with no external PCI-E power connector). So we’ve attached a watt meter to the power line of an external PCI-E extender to see how much power is drawn by the GT 750 Ti card. The results we got were quite surprising, even though we knew that the default power consumption should fit in the 38.5W limit for the power target set in the BIOS. With the stock frequencies for the GPU and the video memory the GeForce GTX 750 Ti has shown to draw just about 28W ot power producing about 250 KHS hashrate for Scrypt mining. After getting the card overclocked to +135 MHz for the GPU and +650 MHz for the video memory the power consumption has risen a bit to about 34W average with a hashrate of about 300 KHS for Scrypt crypto mining.

So if you were calculating the power usage of GTX 750 Ti as 60W in order to see the ratio of hashrate per Watt of power, then you should rethink how you calculate it now. Note that this is the actual power that goes from the PSU to the video card, the real power consumption with a 80 Plus certified power supply that provides 90% efficiency for example would rise with 10% to about 30W (stock) and 37W (overclocked) respectively as the actual power drawn by the card from the wall socket.

Auroracoin (AUR) Scrypt based cryptocoin

28 Feb
2014

auroracoin-scrypt-crypto

Auroracoin is a cryptocurrency for Iceland. It is based on litecoin and is 50% premined. The premined coins will be distributed to the entire population of Iceland, commencing on midnight 25th of March 2014. Auroracoin is designed to break the shackles of the fiat currency financial system in Iceland.

Iceland has been hit hard by financial meltdown and inflation. Not only did the entire banking system collapse in 2008, but the monetary history of Iceland is one of inflation, devaluation and currency controls. Auroracoin is an opportunity for Icelanders to free themselves from currency controls and government debasement of the currency.

Auroracoin is based on the Litecoin protocol. However, it is started by the “Airdrop” of premined auroracoins to the Icelandic nation, designed to reach almost every Icelander. This one-time event will create the conditions for Icelanders to start using the currency, by providing them with a start and making them aware of the currency and its possibilities. After the Airdrop, the only way to acquire auroracoins will be through mining and transacting.

Website
http://www.auroracoin.org/

Block Explorer / Crawler
http://blockexplorer.auroracoin.eu/chain/AuroraCoin

SPECIFICATIONS

  • Scrypt Algo
  • 21 million total coins
  • 25 coins per block
  • Coins mature after 100 blocks
  • Re-target every 8 blocks
  • 50% Premine, to be distributed to Iceland’s population

DOWNLOADS
Windows
Mac

Source Code
– at GitHub

PORTS

  • RPC Port: 12341
  • P2P Port: 12340

POOLS
– https://hash-to-coins.com/
– http://aur.bitember.com/
– http://aur.pool.mineabit.com/

EXCHANGES
– Yobit
– AskCoin

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