I think I am being an optimist here but I don't see Sfards making the price double the S5 like Doggie suggest, I think were talking 500$ maybe 600$ max but no way am I see 700$+ on this machine, it seems good but not that good. I think Doggie is a bit biased working for bitmain that this could be a large competitor for them if it is priced correctly.
Sorry Doggie.
Here is how I look at pricing. Bitmaintech crushed sp-tech on price when the sp20 came out. Sfards even if China based and has 0 relationship with bitmaintech knows they can't come out with a low price. Since this bitmaintech can crush them in a price war. At current coin prices and diff this machine will break even at 120 to 180 days. if sold at 900 usd. So in order not to price war with bitmaintech and to be able to come back with a price drop. they will start close to 900. the s-5 clears 0.04 usd a day at 19 cents a kwatt clears 0.62 usd a day at 15 cents a kwatt clears 1.34 usd a day at 10 cents a kwatt clears 2.10 usd a day at 5 cents a kwatt the sfards is a lot better if the specs are true. if your power is 20 cents you spend 4.80 usd to run it. that is 9-4.80 = 4.20 usd profit if your power is 15 cents you spend 3.60 usd to run it. that is 9-3.60 = 5.40 usd profit if your power is 10 cents you spend 2.40 usd to run it. that is 9-2.40 = 6.60 usd profit if your power is 5 cents you spend 1.20 usd to run it. that is 9-1.20 = 7.80 usd profit |
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Got an e-mail from Sfards to go ahead with a group buy. However, I'd like Philipma to make a review - his reviews show a lot of the potential of the gear he's testing.
Btw: Funny typo in the Sfards-email: SP100 :-)
thank for a vote of confidence. |
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i stand corrected, got a little over zealous with counting maybe someday there will be 8 You can mine 8 coins with the same hash power at mm pool all at the same time.
In particular if you want to mine any of the child coins it is by far the best place to be mining.
But why mine just a few if you can get 8 chances at solving a block for each share submitted !!
7 coins - username isnt a coin, bruh are you photon_coin? I need new glasses or a new brain or both... 6 coins only for me? 6 is correct bitcoin namecoin i0coin ixcoin============ dead coin no earnings devcoin groupcoin unobtanium |
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Just heard back from SFards. Doesn't look like they are doing any demo or evaluation units at this time, unfortunately. They are doing MOQ 100 for the initial sales run due to limited quantity, and have not yet established shipping date or price.
I got the same answer to my email. So I will pass on this. Good luck to those that buy it. |
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I have no idea but it is an embarrassment to the rest of us that a "noob" account is messing with a Legendary Member that does as much for BCT as anyone here--
Does get tiring. It also really turns me off quite a bit from sfards. Of course is this a clever puppet from another company trying to turn all of us off sfards? I would like to hear from sfards and not puppets. After all the garbage done by so many sellers of so many miner units/models a few units for review would go a long way to selling the gear. But I have no need to review one others can do good reviews. |
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I would def. be interested in a Group Buy especially if OgNasty is doing it-- count me in for 10+ depending on price....
price has importance but I would really like to see some good reviews on this item. paying say 750 usd (I think higher) sounds pretty good price. but if the gear does 1500gh and 40 mhs and spends 1100 watts it is not a good deal. Minimum 100 order with no recourse for low specs is making me gun shy. I would suggest a few good demos of the gear are more important then doing a group buy. A) prisma had fire issues. B) spondolllies sp20 was a 1200gh good efficiency miner 1400 so so and 1600 power burner. C) if these chips scale like the sp20 running them at 1400gh and 40 mhs may be the realistic number. I would hate for a lot of us buying and hoping for 1700gh and 50mhs and having to settle for a lot less. remember gridseeds never did dual mining well. So I do urge some verified demos reviews etc Yes yes Dogie need to review. He no beg over and over like some others...... yeah thats right he should do a review, but if he is the only pre reviewer I won't buy one of these. I want more then one reviewer. That was a politically correct way of stating that, I was thinking i would prefer someone that will actually put the miner through some stress testing and not just a bunch of pretty pictures and regurgitating the instruction book--lol I have seen many bad mining gear. Under spec slow delivery . I would hate for a lot of us to buy 100 or 200 in a pre order and not like the gear. We now have a newbie calling me a beggar. So I ask why? If the gear runs well send out some review units. I don't see any posts from the company. I see a puppet dissing me. Why? |
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I would def. be interested in a Group Buy especially if OgNasty is doing it-- count me in for 10+ depending on price....
price has importance but I would really like to see some good reviews on this item. paying say 750 usd (I think higher) sounds pretty good price. but if the gear does 1500gh and 40 mhs and spends 1100 watts it is not a good deal. Minimum 100 order with no recourse for low specs is making me gun shy. I would suggest a few good demos of the gear are more important then doing a group buy. A) prisma had fire issues. B) spondolllies sp20 was a 1200gh good efficiency miner 1400 so so and 1600 power burner. C) if these chips scale like the sp20 running them at 1400gh and 40 mhs may be the realistic number. I would hate for a lot of us buying and hoping for 1700gh and 50mhs and having to settle for a lot less. remember gridseeds never did dual mining well. So I do urge some verified demos reviews etc Yes yes Dogie need to review. He no beg over and over like some others...... yeah thats right he should do a review, but if he is the only pre reviewer I won't buy one of these. I want more then one reviewer. |
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So I do urge some verified demos reviews etc
Shot them an email inquiring about these units, and my desire to review one for the forums. Here's hoping they might be receptive to providing review units for us ! I did that about 12 hours ago. I am hoping for this to be demoed and reviewed |
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I would def. be interested in a Group Buy especially if OgNasty is doing it-- count me in for 10+ depending on price....
price has importance but I would really like to see some good reviews on this item. paying say 750 usd (I think higher) sounds pretty good price. but if the gear does 1500gh and 40 mhs and spends 1100 watts it is not a good deal. Minimum 100 order with no recourse for low specs is making me gun shy. I would suggest a few good demos of the gear are more important then doing a group buy. A) prisma had fire issues. B) spondolllies sp20 was a 1200gh good efficiency miner 1400 so so and 1600 power burner. C) if these chips scale like the sp20 running them at 1400gh and 40 mhs may be the realistic number. I would hate for a lot of us buying and hoping for 1700gh and 50mhs and having to settle for a lot less. remember gridseeds never did dual mining well. So I do urge some verified demos reviews etc |
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Well shit.  First SP20 that's given me issues. Just up and died on me after working faithfully for several months. Sent an email to SPTech via their website "Contact Us" link and hopefully I can get a new board or something... did you check the pcie wires carefully? |
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Well I am waiting on an email reply.
None in the last 10 hours.
I would really want to fully test this unit before I commit to a group purchase.
I would hate to see it overpriced and over specced.
The info says it earns 8-9 usd a day mining both coins at current prices.
and it burns close to 950 watts
that is 24 kwatts a day.
if your power is 5 cents you spend 1.20 usd to run it. that is 9-1.20 = 7.80 usd profit
if your power is 10 cents you spend 2.40 usd to run it. that is 9-2.40 = 6.60 usd profit
if your power is 15 cents you spend 3.60 usd to run it. that is 9-3.60 = 5.40 usd profit
if your power is 20 cents you spend 4.80 usd to run it. that is 9-4.80 = 4.20 usd profit
So if you have 10 cent power you need 150 days to earn 990 usd
Based on the math above over 1000 usd is a so so price.
I really do not feel like forking over 1k for this gear, in my case a 150 to 180 day break even number.
If you are in Europe and pay 25 cents for power this is very marginal for you.
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Novak and I agree about pretty much everything regarding what does and doesn't suck. He's actually a bit younger than I am too - and meaner, if you believe that, but he keeps a tight leash so it's okay I guess.
Anyways, hey guess what arrived this morning!
Some PCBs. I bet you guessed that right. PCBs for the Compac V0.4 and barebones 18-boards. I'll test Compacs first and see how those guys behave, and if they work I'll hand off a bunch to folks for testing. Lighting up the 18-board is going to be a bit trickier because I'll have to verify everything node-by-node while juggling power so it doesn't burninate, so I might not have news on that for a few days.
so these Compac V0.4 will be the final 1 chip usb stick design. (assuming all works) here is hoping they match the version tested. also good luck with the 18 chip board. |
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Im gonna have about 24 TH/s of mining power soon. Whats the realistic ROI if I mine in one the top pools out there?
Okay your power cost is needed. but if you put 24th on f2pool it earns: 0.00971573 btc for 1th or 0.23317752 btc per day at current diff. this reflects all fees. it also pays other coins every day. NMC = 6 x 0.23317752 = 1.39906512 NMC per day IXC = 6 x 0.23317752 = 1.39906512 IXC per day IOC = 6 x 0.23317752 = 1.39906512 IOC per day HUC = 5 x 0.23317752 = 1.1658876 HUC per day the alt coins come very close to making up all the fees against the btc. so this pool would most likely be the best pool for you. still need to know your: power cost and your efficiency rates along with price for the gear. lastly your cooling costs. |
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http://btc.blockr.io/chartspart day 6-14-2014 108-----114 -6 full days 6-15-2015 142-----144 -2 6-16-2015 125-----144 -19 6-17-2015 143-----144 - 1 6-18-2015 165-----144 = +21 6-19-2015 147-----144 = +3 6-20-2015 134-----144 = -10 6-21-2015 125----144 = -19 6-22-2015 144----144 = 0 6-23-2015 144----144 = 0 total 1377---1410 = -33 so real number is ( -2.34%) as of the end of 6-23-2015! Now (- 2.34%) is a real time number as of the end of 6/23/2015 https://bitcoinwisdom.com/bitcoin/difficulty (+0.53%%) a prediction number.------------------- frankly it is off by a mile --based on current real time number of -2.34% Price is about BTC/USD: $245.00 So far if the numbers hold we will be under 50 bill diff.
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Im curious about total hashrate of antpool.
Why its go up and down significantly?
If it happen in short period i think its ok but its longer than day or two.
Are they testing hardware? Somebody has big hasrate join on and off?
Only antpool can answer this.
Contrary to popular belief and the conspiracy theorists, the vast majority of the time you see swings in hash rate on a pool, or even on the entire BTC network itself, it's not because some manufacturer just turned on a boatload of new hardware. Pools and the network itself have absolutely no comprehension of actual hashing rate. All they know is how fast shares are being submitted (pool) and how fast blocks are being solved (BTC network). They use this in combination with the share difficulty (pool) or network difficulty (network) to ESTIMATE what the pool's/network's speed is. The key word there is estimate. Because of the nature of solving shares/blocks, the estimation process will show swings in hash rate. + 10% to -10% are normal swings. On pure luck alone, so a pool at 50 ph can go up and down from 45ph to 55ph as a norm not unusual at all. Even larger swings can happen due to heavy good or bad luck. Then there are other up and downs. Under clocking gear, over clocking gear. -+ 2-3% . Weekends - weekdays night mining only = cheaper power in USA, NJ You can get special rates if you mine from 9pm to 5am. So if your gear has roi'd 100%. Then mining at night works. This can do swings. |
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Update 23/6/2015SF100－the first 28nm Dual-Mode Miner is getting into mass productionWith the experience of developing dual-mode chip and miner manufacturing succeeded from Gridseed, Sfards Technology has successfully developed and produced the first FD-SOI 28nm SHA-256 (Bitcoin) and Scrypt ( Litecoin ) dual-mode mining chip SF3301, in massive scale. After more than one month evaluating, prototyping, and extreme-condition pressure testing, the first 28nm dual-mode miner, SF100, is about to be produced massively.  SF100 dual-mode miner has 24 SF3301 chips, with the running modes as following: - Dual mining mode, Bitcoin hashing power 1700 GHS + Litecoin hashing power 47 MHS, the power consumption at wall of whole miner is 960W.
- Bitcoin single mining mode: Hashing power 1700 GHS, power consumption 770W.
- Litecoin single mining mode: Hashing power 47 MHS, power consumption 180W.
With 0.45W/GHS + 3.8W/MHS, the power efficiency of SF100 is by far the best in the market. It is also possible to overclock to certain extent (Sha-256: 2T, Scrypt: 55M). The unique ability of dual-mode mining makes SF100 the best choice of mining community. It offers more choices to dig potentials not only of Bitcoin, but also of Litecoin and other altcoins. For fiat currency investors, dual-mode is good for them because SF100 maximizes their profits; for Bitcoin“fundamentalists”, it’s also preferable since the altcoin revenue helps them to cover the power cost of mining Bitcoin. Based on recent Bitcoin and Litecoin price, a dual-mode SF100’s revenue equals to a 2.8-3.2T pure Bitcoin miner, which makes it 0.3-0.34W/GHS power efficiency. (Take June 19th price for instance, one SF100 generates 4.2 USD from Bitcoin and 3.8 USD from Litecoin, in total 8 USD per day). Sfards Technology will be selling SF100 to public on July; the first batch quantity is limited. The SF3301 chip will be available for sale on August. If you are interested at our products, please send email to info@sfards.com ... I sent an email to you at info@sfards.com in regards to the SF100 Thank you in advance for reading it. best regards philipma1957 |
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Interesting read. I only understand 1/2 of it though. But I do understand economics and supply/demand. The increase in block size will make no difference in the long run if fees are not addressed for both transactions and nodes. In 12 years, a 20mb block with no transaction fees won't do anyone any good. That said, in this early stage of adoption, fees will cause less adoption.
Letting fees drift up a bit won't end the game, shifting from 1mb to 20mb is drastic. I rather do nothing and see if market corrects via people paying more to transact. If becomes a real issue. I rather see people that run a node get paid. nodes moving form 6000 to 15000 would help. I spend 20 kwatts a month to run my node. would not mind a 0.020 btc a month payment for that. Taken from the higher fees. A 2mb size in 6 months is more conservative Alternative then a 20mb jump now. |
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I hope the operator of mm pool does not object to this, since I don't want to discourage anyone but yes there can be some long rounds.....
I don't mind at all. It's important to point out that low hash rate pools take a long time between blocks. The last few we had close together were an outlier - a nice one though. The only solution is more hash power. This is one of the reasons the PPS portion was introduced - to give some BTC reward during the long periods. heres to the start of a new outlier. We make 4 new blocks before the 4th of July 2015! |
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