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There is another interesting crowdfunding project available on the Bitcointalk forum for GPU miners that are interested in mining VertCoin on AMD-based video cards. A user called pallas has made an optimized Lyra2Re kernel for VertCoin (VTC) and is taking donations and sending a compiled binary if you donate minimum of 0.02 BTC an if the total donated coins reach 3 BTC by May 1st he is going to release the source code of the kernel public. The only drawback is that apparently the binary is available only for AMD Radeon R9 290 cards where it is able to produce about 1740 KHS hashrate mining Lyra2RE coins. There are a lot of people that still use Radeon R9 280X, 7970 and others and for them a binary for the 290 is not very usable (it might work on 290X though), so this will limit the use of a compiled BIN, unless binaries for other cards are also made available. The compiled kernel binary is designed to work with latest djm34 sgminer for Lyra2RE that needs to be compiled for 64-bit.
– For more details about the new Lyra2RE Vertcoin optimized OpenCL kernel…
BitMain has started selling the AntMiner U3 Bitcoin ASIC miner again with a slightly different design than the original first batch, other than that the specifications remain pretty much the same (with some minor differences in cited power usage). The new AntMiner U3 Batch 2 is available with a minimum order quantity of 20 units at a price of 38 USD (0.185 BTC) and the Batch 3 is with a minimum order quantity of just 5 units available at a price of 39 USD (0.19 BTC). The BitMain AntMiner U3 ASIC miners provide 63 GHS at about 60W with 1 Watt per GHS in the new specifications that are published by BitMain with a low noise level.
BitMain AntMiner U3 Specifications:
– Max Hash Rate: 63 GH/s ±5%
– Power Efficiency: 1Watt/GH/s on wall at 0.83V
– Voltage: DC 12V input, 6A
– Chip Quantity per unit: 4
– One 80mm fan
– Noise: ~25 DB at 25 °C ambient temperature
– Hashrate and VDD core voltage can be adjusted via cgminer command line
– USB connection
– 12V AC/DC power brick of 6A, but power line not included
– Certificate Compliance: FCC/CE
BitMain has these miners available for home users that want to have access to affordable priced and silent Bitcoin ASIC miners that want to play with them just for hobby, they are not designed to ROI due to their lower hashrate and not so great power efficiency. Since they are running batch 2 and 3 this means that there is interest in these little devices from users, though you probably would want to get a single unit to play with it and not buy a minimum of 5 or 20 units. This means that most end users will probably not be interested in directly buying AntMiner U3 from BitMain, but will look for some company reselling these at a single piece quantities.
We have received some questions about a pool available for testing the new Lyra2RE-capable GPU miners before the actual VertCoin (VTC) hardfork to the new algorithm happens from the currently used Scrypt-N. Hashlink has setup a working pool for testing your settings and miners using Lyra2RE algorithm, so you can get ready for the hardfork when it happens in a few days. Do note that this is a testnet pool and it is currently intended only for testing, you will no be mining any real VertCoin at the moment! Also as a reminder, make sure you have updated your VertCoin wallet to the latest version 0.9.0.1 prior to the hardfork.
Using sgminer for AMD with Lyra2RE support:
sgminer -k Lyra2RE -o stratum+tcp://stratum-eu1.hashlink.eu:10031 -u yourworker.1 -p password
Using ccMiner for Nvidia with Lyra2RE support:
ccminer -a lyra2 -o stratum+tcp://stratum-eu1.hashlink.eu:10031 -u yourworker.1 -p password
– For more information about the VertCoin Lyra2RE test pool by Hashlink…