Archive for the ‘General Info’ Category

Raspberry Pi Overclock Optimized Image for Innosilicon A2 Scrypt ASIC Miners

1, Jul 2014

innosilicon-a2-rpi-oc-image

Something very interesting for the people with Innosilicon A2-based Scrypt ASIC miners, a Raspberry Pi image based on the original Innosilicon web-based interface, but with much more options for setting the operating frequency of the miner. This release by a user called Emdje should be compatible with both the smaller and the large A2 Scrypt ASIC miners allowing the users to set the operating frequency of the chip boards available between 1200 MHz and 1330 MHz, in increments of 5 MHz. This allows for some fine tuning to reach better performance balancing the performance and HW error rate optimally for your own mining hardware, as the default RPi image for the A2 miners from Innisilicon limits you to either 1000 MHz or 1200 MHz setting for the frequency. And an operating frequency of more than 1200 MHz with no significant increase in the number of HW errors is easily achievable as these A2-based miners are operating very cool and can be pushed some more. And who would not wan to get some extra hashrate from the existing mining hardware…

– For more information about the Overclock Optimized RPi Image for Innosilicon A2 miners…

BitMain to Start Shipping AntMiner S3 ASICs on July 10th

30, Jun 2014

bitmain-antminer-s3-asic-miner

BitMain has listed the upcoming ~500 GHS AntMiner S3 Bitcoin ASIC miner on their website based on the new 28nm BM1382 chips that were recently announced. The AntMiner S3 should start shipping from July 10th with a price set at 0.75 BTC, so you can already pre-order your unit if you are interested. The initial effective hash rate for the S2 was announced to be 504 GHS plus/minus 5% and now it seem that Bitmain has lowered it a bit to 478 GHS, though the unit should be overclockable to 500 GHS or more. The power consumption for the 500 GHS hashrate that was previously announced was 390W on wall and now with the official hashrate lowered a bit the power usage is also a bit lower at 366 Watt.

AntMner S3 Final Specifications:
– Hash Rate: 478 GH/s±5%
– Power Consumption: 366 Watt at the wall
– Power Efficiency: 0.77 J/GH on wall
– Power Supply: 12V DC
– Size: 331 mm x 137 mm x 160 mm
– Fans: Two 14038 fans mounted on both front and back ends.
– Operating Temperature: 0 °C to 35 °C
– Complied with: FCC / CE
– Network Connection: Ethernet

Do note that the BitMain AntMiner S3 ships without a PSU. There are 4 PCI-e connectors for +12V DC input, but it apparently needs only two of them to be connected if you are not going to be overclocking the device, so the other two are required only if you do plan to overclock the device.

– For more information about the BitMain AntMiner S3 Bitcoin ASIC miner…

Users Are Receiving Their KnCMiner Neptune Bitcoin ASIC Miners

24, Jun 2014

kncminer-neptune-in-action

Last week KnCMiner has reported that they are ready to start shipping the 3 THS Neptune miners and this week the users that have pre-ordered the Batch 1 units have started receiving their units. The 3 THS Neptune ASIC miners that were pre-ordered back at the peak of the Bitcoin and purchased with BTC at the end of last year might end up with very nice return of investment time. However if you have paid in cash for them and at some point after the MtGox affair, then you might have harder time to return your investment by mining Bitcoins with them as the difficulty is climbing fast already.

kncminer-neptune-in-action-2

The 3 THS KnCMiner Neptune SHA-256 ASIC miners are using about 2.1 KW of power at the wall, so the best way to power them is by using two 1.2 KW ATX power supplies, so that you might be able to also have some reserve for possible future hashrate upgrades with slight increase in the power usage. If you still haven’t pre-ordered a Neptune miner and do not plan to get into the Batch 2 order list, but you are interested in getting some more affordable Bitcoin miners, then you might want to take a look at the upcoming 500 GHS AntMiner S3 from BitMain or the already available 1100 GHS Innosilicon A1-based BTC miners.


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