All About BTC, LTC, ETH mining as well as other alternative crypto currencies
Just a reminder about this week’s photo contest for a chance to win a 5-chip Gridseed ASIC miner provided by our partners GAWMiners. All you have to do is submit a photo showing the “tidiest cabling of your mining rigs” and you could get an ASIC miner as a reward this week, furthermore you could also play and win in the next two weeks of April as well by participating in the photo contest as each week there will be a different theme of the contest and another Gridseed ASIC device as a prize. So do not miss your chance this week, you still have a few more days to submit your entry.
Last week, together with our partners GAWMiners, we have started a photo contest that gives you the chance to win a 5-chip Gridseed ASIC miner each week during the month of April. The first week has already passed and we have chosen the first winner, the theme for the photo contest was the Strangest Place to Mine.
Our first winner is Javier Martin Fernadez, who has submitted some really interesting photos and really had chosen the strangest place to mine among all of the photos we have received. He will be contacted shortly by GAW Miners to arrange the shipping of the prize to him. Here is what he has sent as description along with the photos about the place he used to mine in:
This is the strangest place to mine that I found. It’s an old pit used in the 60’s for a blacksmith in his work. Now is full of work material, the perfect place where to put a miner to work. I hope you enjoy the photos.
If you have had a better idea, but did not submit it, don’t worry you will have three more chances to win a Gridseed ASIC Miner during the month of April. The second week of our photo contest has started and we have a new theme, Neat as a Pin (tidiest cabling of mining rigs). So don’t miss your chance to win 5-chip Gridseed ASIC miner this week and remember, if you don’t participate you cannot win for sure.
A few days ago we have posted our first test results from the new Gridseed Blade Miner. We got early remote access to a single unit that we were able to test and report our findings before the devices actually started shipping thanks to our friends at MinerEU who are an official Gridseed EU distributor. Meanwhile we got a second unit attached to the system we were testing, so we were able to run some longer tests with two devices in order to see what variance we can expect from device to device. We also expanded the tests to cover various usage scenarios to check what hashrate you can expect to get if mining for a fixed higher difficulty coin such as LTC as well as if you are mining in auto profit switching mode to mine the most profitable crypto coin. Meanwhile the new Gridseed Blade Miners should start shipping tomorrow, so the people that have ordered them should start receiving their units very soon.
We are starting up with a result showing the two Gridseed Blade Miners, each of which is reported as two separate devices, fixed in mining for LTC with a worker difficulty of 256 at the scryptguild pool. The Blade Miners are running at 800 MHz, a frequency that can normally provide up to about 5.6 MHS in mining a fixed crypto currency with higher worker difficulty. Note that one of the PCBs, namely the GSD 1 device does report a lower actual hashrate and that is a direct result of getting some HW errors from that PCB. It seems that this could be related to the cooling not giving a good contact to one of the PCB sides for example, so we recommend to inspect your miners and if needed to optimize them a bit before running them, just in case and to get the best performance. This is something that we recommend doing for the smaller 5-chip Gridseed ASIC devices as well, especially if you plan to overclock and voltmod them, you need to check the contact between the cooler and the chips.
Notice that the poolside result is pretty much consistent with the local reported actual hashrate. Do note the other worker above the Blade miner, it is from a voltage modified 5-chip Gridseed ASIC running at about 490 KHS local hashrate (1150 MHz). You can see that with close number of submitted shares to the pool, the number of rejected (stale) shares is almost twice as high on the smaller ASIC as compared to the Blade Miner. The reason for that difference is that the small miner is running on automatic profit switching and 64 worker difficulty, so it gets more stale shares due to the often switching between different crypto coins and due to the fact that some are with lower difficulty and many blocks are calculated quickly.
So how about leaving the two Gridseed Blade Miners for a few days to run in auto profit switching mode at 64 worker difficulty at scryptguild, the miners were running in 800 MHz. The result is quite interesting, local hashrate reported at about 5 MHS per device with about 6.8-6.9% of stale shares (the percentage is higher as expected) and more HW errors that you would normally get if mining for a specific coin only. What you should be well aware of is that based on the pool and the type of mining you are doing you might be getting different performance that could be lower or higher than what the official specifications about the miner say. Using automatic profit switching pool might help you get more profit than mining directly for LTC for example, though the extra percentage you might get may be lower in reality than what your raw calculations may show initially as you could be getting more stale shares as well as more hardware errors this way. So far we are satisfied from the results we are getting from the new Gridseed Blade Miner, though at the moment due to the uncertainty and the lower Bitcoin and Litecoin prices, people seem to be very careful in general when considering to buy ASIC hardware. And we are not talking only about investment in very powerful and very expensive mining hardware that is expected to ship later this year.