Need for dual DC/DC converters increasing costs very sharply. Price for this chip must be in 20$ range to be competitive for example with bitmain. Efficiency doesn't look to promising. 0.32W at chip level means ~0.4W at wall. With good quality (gold or better) PSU.
Can't figure out what that FBB voltage is...
Topic: [ANN] Sfards:SF100, the first 28nm Dual-Mode Miner is accepting pre-order now - page 63. (Read 129801 times)
April 30, 2015, 03:56:39 PM
April 30, 2015, 10:34:55 AM
Interesting data sheets, suggests dual mode may be viable compared to a single mode. Will be interesting what the final product will be 'stock-ed' at as GH / power has quite a large range tremendously. Don't have a complete data curve so these are just arbitrary points for now.
BTC only:
72GH @ 0.32W/GH
152GH @ 0.64W/GH.
BTC only:
72GH @ 0.32W/GH
152GH @ 0.64W/GH.
as a higher cost of power miner the 0.32W/gh at the chip is worthless
If it is at the wall I can mine with it. I will study the chart over the next 10 minutes
it looks like 0.6 volts is efficiency mode for btc
I do not know how stable the low power setting is but it is 11 watts a chip
I do not know how stable the high power setting is but it is 97 watts a chip
So a 20 chip box according to this could swing from as low as
220 watts
to as high as-------- 720gh
1940 watts---------- 3040gh
All on a btc level.
this big swing really helps the small miner.
This difficulty adjustment renting to nice hash was as high as 0.0142 so crank to a high setting.
Other times getting 0.0102 from f2pool was best so lower to 800gh .
This type af gear is very good for me as a higher power cost miner.
here are both charts:
April 30, 2015, 06:47:04 AM
GC3328 
Anyway, interesting specs.
Reference design will help too.
Now working on a design while waiting for availability and pricing of the sample chips next week.
Anyway, interesting specs.
Reference design will help too.
Now working on a design while waiting for availability and pricing of the sample chips next week.
April 30, 2015, 04:49:35 AM
Interesting data sheets, suggests dual mode may be viable compared to a single mode. Will be interesting what the final product will be 'stock-ed' at as GH / power has quite a large range tremendously. Don't have a complete data curve so these are just arbitrary points for now.
BTC only:
72GH @ 0.32W/GH
152GH @ 0.64W/GH.
BTC only:
72GH @ 0.32W/GH
152GH @ 0.64W/GH.
April 30, 2015, 04:47:16 AM
Update 30/4/15:
SFARDS is now opening up the ASIC SF3301's datasheet for developers and anyone interested in the technology. One of our main goals is to allow numerous developers to test our new technology in a variety of environments, allowing for a truer test of the SF3301's boundaries and possibly finding an even more optimal running condition that we have yet discovered.
In addition to this we have made a number of sample chips available, more details including pricing to be released on 4th May.
Datasheet download website as follows:
https://github.com/sfards
SFARDS is now opening up the ASIC SF3301's datasheet for developers and anyone interested in the technology. One of our main goals is to allow numerous developers to test our new technology in a variety of environments, allowing for a truer test of the SF3301's boundaries and possibly finding an even more optimal running condition that we have yet discovered.
In addition to this we have made a number of sample chips available, more details including pricing to be released on 4th May.
Datasheet download website as follows:
https://github.com/sfards
Since the Chinese Labour Day is coming, we will out of office until May 4th, so more details and replies will be followed from then on. PS: That's vacation just for marketing colleagues, as for our engineer, they still hard working day and night for your guys
.Glad to hear from you guys! Are you able to tell us if there is a target date on when products will launch?
April 30, 2015, 04:33:52 AM
Update 30/4/15:
SFARDS is now opening up the ASIC SF3301's datasheet for developers and anyone interested in the technology. One of our main goals is to allow numerous developers to test our new technology in a variety of environments, allowing for a truer test of the SF3301's boundaries and possibly finding an even more optimal running condition that we have yet discovered.
In addition to this we have made a number of sample chips available, more details including pricing to be released on 4th May.
Datasheet download website as follows:
https://github.com/sfards
SFARDS is now opening up the ASIC SF3301's datasheet for developers and anyone interested in the technology. One of our main goals is to allow numerous developers to test our new technology in a variety of environments, allowing for a truer test of the SF3301's boundaries and possibly finding an even more optimal running condition that we have yet discovered.
In addition to this we have made a number of sample chips available, more details including pricing to be released on 4th May.
Datasheet download website as follows:
https://github.com/sfards
Since the Chinese Labour Day is coming, we will out of office until May 4th, so more details and replies will be followed from then on. PS: That's vacation just for marketing colleagues, as for our engineer, they still hard working day and night for your guys
. April 30, 2015, 04:23:10 AM
we have made a number of sample chips available, more details including pricing to be released on 4th May.
On Block Erupter USB anniversary - double whammy! SFARDS is now opening up the ASIC SF3301's datasheet for developers and anyone interested in the technology. One of our main goals is to allow numerous developers to test our new technology in a variety of environments, allowing for a truer test of the SF3301's boundaries and possibly finding an even more optimal running condition that we have yet discovered.
Awesome! 
April 30, 2015, 04:18:24 AM
Update 30/4/15:
SFARDS is now opening up the ASIC SF3301's datasheet for developers and anyone interested in the technology. One of our main goals is to allow numerous developers to test our new technology in a variety of environments, allowing for a truer test of the SF3301's boundaries and possibly finding an even more optimal running condition that we have yet discovered.
In addition to this we have made a number of sample chips available, more details including pricing to be released on 4th May.
Datasheet download website as follows:
https://github.com/sfards
SFARDS is now opening up the ASIC SF3301's datasheet for developers and anyone interested in the technology. One of our main goals is to allow numerous developers to test our new technology in a variety of environments, allowing for a truer test of the SF3301's boundaries and possibly finding an even more optimal running condition that we have yet discovered.
In addition to this we have made a number of sample chips available, more details including pricing to be released on 4th May.
Datasheet download website as follows:
https://github.com/sfards
April 29, 2015, 09:48:37 PM
I've never understood this miner mentality...why are you wasting your money on miners if you think the price will jump? Your barely going to ROI if you buy hardware now as it is if ever, so why are you not buying the coin and holding it?
Thats the problem with this community...everyone is in for profit...if half the miners actually stopped mining and bought coin with the thousands they would spend on miners then the price would start going up. More buyers instead of miners = upward price pressure and less dumping to fiat from miners = win/win.
Stop feeding the Chinese trolls and actually support crypto.
Thats the problem with this community...everyone is in for profit...if half the miners actually stopped mining and bought coin with the thousands they would spend on miners then the price would start going up. More buyers instead of miners = upward price pressure and less dumping to fiat from miners = win/win.
Stop feeding the Chinese trolls and actually support crypto.
Yup.
Unless you got literally millions you are not going to be making anything in mining.
Hobby or education sure that is a valid reason to buy miners on the smaller economy of scale say 1 to 30 units let us say.
April 29, 2015, 09:46:13 PM
There are tax benefits for purchasing machines over purchasing the coin outright.
Where has Matt gone Terrence? Is he going to reimburse those people he owes?
April 29, 2015, 05:12:25 PM
Gridseeds were gimmicky but sold like hotcakes and they're scrypt machines were solid but pricey.
They made a fortune off of them and the blades. I still can remember some amazing setups with ton's of those circle gridseeds. Was pretty amazing to see.
I still have hope for Sfards but I don't thing the product is on a rush to make it. Why we an guess but no one really knows.
If you read what I said I don't think they are on a rush. With btc prices I'm guessing they are trying to do R/D as cheap as possible. And in the end get as much profit as possible.
But it's sad they started out so good, looked promising about being open. Now we hear nothing.
prices are poor so
A) they are waiting to build
B) they built and are mining hoping to get some money back before they sell it
C) an unknown
Pick your choice. It is not that complicated.
This is what most of us long term miners are thinking.
I will buy 1 or two and hope for prices to jump. I hope the day I get it prices jump and this gear doubles in price. I will mine for a while then sell it.
Ive never understood this miner mentality...why are you wasting your money on miners if you think the price will jump? Your barely going to ROI if you buy hardware now as it is if ever, so why are you not buying the coin and holding it?
Thats the problem with this community...everyone is in for profit...if half the miners actually stopped mining and bought coin with the thousands they would spend on miners then the price would start going up. More buyers instead of miners = upward price pressure and less dumping to fiat from miners = win/win.
Stop feeding the chines trolls and actually support crypto.
Are most of the benefits if you lose capital? If you hit ROI I would think you would not have much tax benefit, unless you had some weird depredation scheme being used.
April 29, 2015, 02:54:07 PM
Gridseeds were gimmicky but sold like hotcakes and they're scrypt machines were solid but pricey.
They made a fortune off of them and the blades. I still can remember some amazing setups with ton's of those circle gridseeds. Was pretty amazing to see.
I still have hope for Sfards but I don't thing the product is on a rush to make it. Why we an guess but no one really knows.
If you read what I said I don't think they are on a rush. With btc prices I'm guessing they are trying to do R/D as cheap as possible. And in the end get as much profit as possible.
But it's sad they started out so good, looked promising about being open. Now we hear nothing.
prices are poor so
A) they are waiting to build
B) they built and are mining hoping to get some money back before they sell it
C) an unknown
Pick your choice. It is not that complicated.
This is what most of us long term miners are thinking.
I will buy 1 or two and hope for prices to jump. I hope the day I get it prices jump and this gear doubles in price. I will mine for a while then sell it.
Ive never understood this miner mentality...why are you wasting your money on miners if you think the price will jump? Your barely going to ROI if you buy hardware now as it is if ever, so why are you not buying the coin and holding it?
Thats the problem with this community...everyone is in for profit...if half the miners actually stopped mining and bought coin with the thousands they would spend on miners then the price would start going up. More buyers instead of miners = upward price pressure and less dumping to fiat from miners = win/win.
Stop feeding the chines trolls and actually support crypto.
April 29, 2015, 02:44:10 PM
Gridseeds were gimmicky but sold like hotcakes and they're scrypt machines were solid but pricey.
They made a fortune off of them and the blades. I still can remember some amazing setups with ton's of those circle gridseeds. Was pretty amazing to see.
I still have hope for Sfards but I don't thing the product is on a rush to make it. Why we an guess but no one really knows.
If you read what I said I don't think they are on a rush. With btc prices I'm guessing they are trying to do R/D as cheap as possible. And in the end get as much profit as possible.
But it's sad they started out so good, looked promising about being open. Now we hear nothing.
prices are poor so
A) they are waiting to build
B) they built and are mining hoping to get some money back before they sell it
C) an unknown
Pick your choice. It is not that complicated.
This is what most of us long term miners are thinking.
I will buy 1 or two and hope for prices to jump. I hope the day I get it prices jump and this gear doubles in price. I will mine for a while then sell it.
Ive never understood this miner mentality...why are you wasting your money on miners if you think the price will jump? Your barely going to ROI if you buy hardware now as it is if ever, so why are you not buying the coin and holding it?
Thats the problem with this community...everyone is in for profit...if half the miners actually stopped mining and bought coin with the thousands they would spend on miners then the price would start going up. More buyers instead of miners = upward price pressure and less dumping to fiat from miners = win/win.
Stop feeding the chines trolls and actually support crypto.
April 29, 2015, 01:37:20 PM
Gridseeds were gimmicky but sold like hotcakes and they're scrypt machines were solid but pricey.
They made a fortune off of them and the blades. I still can remember some amazing setups with ton's of those circle gridseeds. Was pretty amazing to see.
I still have hope for Sfards but I don't thing the product is on a rush to make it. Why we an guess but no one really knows.
If you read what I said I don't think they are on a rush. With btc prices I'm guessing they are trying to do R/D as cheap as possible. And in the end get as much profit as possible.
But it's sad they started out so good, looked promising about being open. Now we hear nothing.
At this point we can see we will not be getting information. I think they announced when they were exited about merger thinking it would get some good PR for them. I don't think they planned it out as far as what they would do next.
They would have been better off not saying anything and working in quiet. In my opinion at least.
April 29, 2015, 10:19:40 AM
Gridseeds were gimmicky but sold like hotcakes and they're scrypt machines were solid but pricey.
They made a fortune off of them and the blades. I still can remember some amazing setups with ton's of those circle gridseeds. Was pretty amazing to see.
I still have hope for Sfards but I don't thing the product is on a rush to make it. Why we an guess but no one really knows.
If you read what I said I don't think they are on a rush. With btc prices I'm guessing they are trying to do R/D as cheap as possible. And in the end get as much profit as possible.
But it's sad they started out so good, looked promising about being open. Now we hear nothing.
prices are poor so
A) they are waiting to build
B) they built and are mining hoping to get some money back before they sell it
C) an unknown
Pick your choice. It is not that complicated.
This is what most of us long term miners are thinking.
I will buy 1 or two and hope for prices to jump. I hope the day I get it prices jump and this gear doubles in price. I will mine for a while then sell it.
April 28, 2015, 10:34:17 PM
Doesn't make you feel to welcomed, could be a sign of the new joint ownership merge. Unpleasant it is, yes unpleasant.
April 28, 2015, 09:44:10 PM
Gridseeds were gimmicky but sold like hotcakes and they're scrypt machines were solid but pricey.
They made a fortune off of them and the blades. I still can remember some amazing setups with ton's of those circle gridseeds. Was pretty amazing to see.
I still have hope for Sfards but I don't thing the product is on a rush to make it. Why we an guess but no one really knows.
If you read what I said I don't think they are on a rush. With btc prices I'm guessing they are trying to do R/D as cheap as possible. And in the end get as much profit as possible.
But it's sad they started out so good, looked promising about being open. Now we hear nothing.
April 28, 2015, 01:33:27 PM
Gridseeds were gimmicky but sold like hotcakes and they're scrypt machines were solid but pricey.
They made a fortune off of them and the blades. I still can remember some amazing setups with ton's of those circle gridseeds. Was pretty amazing to see.
I still have hope for Sfards but I don't thing the product is on a rush to make it. Why we an guess but no one really knows.
April 28, 2015, 01:11:07 PM
Gridseeds were gimmicky but sold like hotcakes and they're scrypt machines were solid but pricey.
April 28, 2015, 11:11:54 AM
Companies call it testing for a couple weeks.... ie product may have dust on it. Who knows maybe they're recouping some cost before they sell it dirt cheap to us. One can hope.
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