The avalon 4.1 is the quiet one. I have a Avalon 4.1 1 S5 and 1 SP20 and the best home miner is the avalon 4.1
The price is too high unfortunatly.
And the watt/gh is more like 0.5 when you use the correct setup.
Topic: [ANN] Sfards:SF100, the first 28nm Dual-Mode Miner is accepting pre-order now - page 59. (Read 129801 times)
May 06, 2015, 09:38:11 AM
For home mining Avalon is way better than S5 because of sound and underclock possibility.
The avalon 4.1 is the quiet one. I have a Avalon 4.1 1 S5 and 1 SP20 and the best home miner is the avalon 4.1
The price is too high unfortunatly.
And the watt/gh is more like 0.5 when you use the correct setup.
The avalon 4.1 is the quiet one. I have a Avalon 4.1 1 S5 and 1 SP20 and the best home miner is the avalon 4.1
The price is too high unfortunatly.
And the watt/gh is more like 0.5 when you use the correct setup.
May 06, 2015, 09:25:42 AM
....
as from what I have seen the sample chips are usually a lot more expensive then final products.
Only in Bitcoin world. When you look at chips manufacturers sites you will find plenty of "get free sample" buttons.as from what I have seen the sample chips are usually a lot more expensive then final products.
Normally I think samples are cheaper/free if you have proper credentials. Normally I think companies do this so you choose their chip to develop.
But I will admit this is not the standard. It looks like they spent quite a bit of time to make a nice dev kit. With low volume I can see why it has a high price tag. But chips I'm a little worried with that being price. Makes me look down the line and wonder what final price will be.
Based on gridseed's past history it will be price as high as possible as long as it sells.
This thread reminds me of an old school porn movie attempting to go slow to get us excited. The first 20 minutes of the movie is all tease. This took 20 pages to offer any kind of product.
I try not to sound jaded like other older members here , but I would be surprised to see it cheap.
Secondly if it is cheap bitmaintech will price war the fuck out of them that was done to Sp-tech's sp20 and you know what happened when the price war happen with the two of them coins dropped to under 190 in January 2015. I hope they price it so that is is slightly better or worse then the s-5.
Not like the Avalon 4.1 which is far better then the S-5 but cost a shit ton more.
So far I have added them on skype and still have not heard back which is really pissing me off -
But in anycase, I am not sure what type of math you have done but how exactly is a Avalon 4.1 better then a S5. A avalon 4.1 is .7 Watts as well as only 1000 GH
May 06, 2015, 07:38:37 AM
....
as from what I have seen the sample chips are usually a lot more expensive then final products.
Only in Bitcoin world. When you look at chips manufacturers sites you will find plenty of "get free sample" buttons.as from what I have seen the sample chips are usually a lot more expensive then final products.
Normally I think samples are cheaper/free if you have proper credentials. Normally I think companies do this so you choose their chip to develop.
But I will admit this is not the standard. It looks like they spent quite a bit of time to make a nice dev kit. With low volume I can see why it has a high price tag. But chips I'm a little worried with that being price. Makes me look down the line and wonder what final price will be.
Based on gridseed's past history it will be price as high as possible as long as it sells.
This thread reminds me of an old school porn movie attempting to go slow to get us excited. The first 20 minutes of the movie is all tease. This took 20 pages to offer any kind of product.
I try not to sound jaded like other older members here , but I would be surprised to see it cheap.
Secondly if it is cheap bitmaintech will price war the fuck out of them that was done to Sp-tech's sp20 and you know what happened when the price war happen with the two of them coins dropped to under 190 in January 2015. I hope they price it so that is is slightly better or worse then the s-5.
Not like the Avalon 4.1 which is far better then the S-5 but cost a shit ton more.
May 05, 2015, 11:09:46 PM
....
as from what I have seen the sample chips are usually a lot more expensive then final products.
Only in Bitcoin world. When you look at chips manufacturers sites you will find plenty of "get free sample" buttons.as from what I have seen the sample chips are usually a lot more expensive then final products.
Normally I think samples are cheaper/free if you have proper credentials. Normally I think companies do this so you choose their chip to develop.
But I will admit this is not the standard. It looks like they spent quite a bit of time to make a nice dev kit. With low volume I can see why it has a high price tag. But chips I'm a little worried with that being price. Makes me look down the line and wonder what final price will be.
May 05, 2015, 03:23:43 PM
....
as from what I have seen the sample chips are usually a lot more expensive then final products.
Only in Bitcoin world. When you look at chips manufacturers sites you will find plenty of "get free sample" buttons. as from what I have seen the sample chips are usually a lot more expensive then final products.
May 05, 2015, 02:27:45 PM
I don't know if I'll order one. Depends on the price and at the wall efficiency.
But it sure is exciting to see a new and likely serious miner!
But it sure is exciting to see a new and likely serious miner!
May 05, 2015, 11:49:07 AM
Work in progress schematics for my 2 chips board and kicad cache library have been added to my dropbox folder.
https://www.dropbox.com/sh/cjjkrq1fv2u7m0l/AADU4n7cCJsl5N1E6Qtai5M5a?dl=0
It's still work in progress, use it at your own risks.
Looks like most fun part is before you https://www.dropbox.com/sh/cjjkrq1fv2u7m0l/AADU4n7cCJsl5N1E6Qtai5M5a?dl=0
It's still work in progress, use it at your own risks.
Choosing power inductor and mosfets... 
May 05, 2015, 10:44:44 AM
Does anyone have a rough idea how soon a plug n play miner might be able to hit the market? Sounds like from a month to 3 months... It all sounds great on paper, but I've been burnt big time by KNC and I'm very vary going forward mining from home.
I currently just buy coins and only mine in small amounts now. I do have free power, but the hardware ROI is big concern, I just hope it is well priced. I cannot take another big hit like I did with KNC.
I currently just buy coins and only mine in small amounts now. I do have free power, but the hardware ROI is big concern, I just hope it is well priced. I cannot take another big hit like I did with KNC.
With free power you do not have to be the first one to purchase . Ie wait and see how well they ship.
When they sold gridseed gear they sold a lot of it. For the most part people got the gear quickly.
Cheers. We will have to be patient then. Be good to be able to get back into some mining and not have to constantly worry about ROI. Hope it is priced fair.
Does anyone have a rough idea how soon a plug n play miner might be able to hit the market? Sounds like from a month to 3 months... It all sounds great on paper, but I've been burnt big time by KNC and I'm very vary going forward mining from home.
I currently just buy coins and only mine in small amounts now. I do have free power, but the hardware ROI is big concern, I just hope it is well priced. I cannot take another big hit like I did with KNC.
I currently just buy coins and only mine in small amounts now. I do have free power, but the hardware ROI is big concern, I just hope it is well priced. I cannot take another big hit like I did with KNC.
I have the same situation as you, and hope we find out more about a plug n play miner soon!
We will just need to be careful
wait and see what the early adopters are saying and see if they are worthwhile. I am quietly optimistic. But this optimism has hurt me in the past. Tread cautiously I suppose. 
May 05, 2015, 07:51:47 AM
Does anyone have a rough idea how soon a plug n play miner might be able to hit the market? Sounds like from a month to 3 months... It all sounds great on paper, but I've been burnt big time by KNC and I'm very vary going forward mining from home.
I currently just buy coins and only mine in small amounts now. I do have free power, but the hardware ROI is big concern, I just hope it is well priced. I cannot take another big hit like I did with KNC.
I currently just buy coins and only mine in small amounts now. I do have free power, but the hardware ROI is big concern, I just hope it is well priced. I cannot take another big hit like I did with KNC.
I have the same situation as you, and hope we find out more about a plug n play miner soon!
May 05, 2015, 07:37:12 AM
To SFARDS:
DVDD_OSC Digital VDD. 0.8V-1.10V
DVSS_OSC Digital GND
This two are listed in section 7.2 table. But not present on schematics and ball map.
DVDD_OSC Digital VDD. 0.8V-1.10V
DVSS_OSC Digital GND
This two are listed in section 7.2 table. But not present on schematics and ball map.
Thank you for your suggestion, we will update the datasheet later.
May 05, 2015, 07:35:07 AM
Perhaps the whole lot of you could respect OP's thread and keep your feud to the threads that revolve around whatever grievances you have with each other? This isn't the first thread that stuff has spilled over into, but I hope that you could decide to make it the last.
| https://i.imgur.com/VB6fQzG.png | Speaking of the datasheet... @sfards: on the next revision, could you make sure that the pin names between the pin list, the ball map and the SV schematic are consistent? Creating a component for a BGA is fun enough without the mismatches ( example: AVDD_OSC (list/schematic) vs VDDA_OSC (ball map) , ESDSUB_ANA (schematic/ball map) vs unlisted ) |
Thank you for your suggestion, we will update the datasheet later.
May 05, 2015, 07:33:43 AM
My simplistic read of the Power/Freq/Voltage table suggests that they filled in values for some "reference" points. I am not sure we should interpret that to mean that ONLY .6V and .8V are allowed. The example of the SP20 suggests that it has a "variable" range DC to DC converter, within limits. The same goes for frequencies.
I am surprised also by the comment about the cost of such a DC2DC gadget. It seems like that, and an adjustable frequency gadget are pretty common these days, on a whole range of mining devices. Obviously there are variety of "non functional" combinations (e.g. Min volts and Max Frequency), as well as "poor efficiency" (e.g. Max Volts and Min Frequency). Beyond that it tends to be a limit of software on the extent folks are allowed to twist the Freq/Volt "knobs".
Not surprisingly, the Low Volts and Low Frequency setting yields the best efficiency.
This seems like pretty standard ASIC stuff doesn't it?
I am surprised also by the comment about the cost of such a DC2DC gadget. It seems like that, and an adjustable frequency gadget are pretty common these days, on a whole range of mining devices. Obviously there are variety of "non functional" combinations (e.g. Min volts and Max Frequency), as well as "poor efficiency" (e.g. Max Volts and Min Frequency). Beyond that it tends to be a limit of software on the extent folks are allowed to twist the Freq/Volt "knobs".
Not surprisingly, the Low Volts and Low Frequency setting yields the best efficiency.
This seems like pretty standard ASIC stuff doesn't it?
Thank you for your attention, please kindly find datasheet 6.3
May 05, 2015, 07:25:52 AM
Does anyone have a rough idea how soon a plug n play miner might be able to hit the market? Sounds like from a month to 3 months... It all sounds great on paper, but I've been burnt big time by KNC and I'm very vary going forward mining from home.
I currently just buy coins and only mine in small amounts now. I do have free power, but the hardware ROI is big concern, I just hope it is well priced. I cannot take another big hit like I did with KNC.
I currently just buy coins and only mine in small amounts now. I do have free power, but the hardware ROI is big concern, I just hope it is well priced. I cannot take another big hit like I did with KNC.
With free power you do not have to be the first one to purchase . Ie wait and see how well they ship.
When they sold gridseed gear they sold a lot of it. For the most part people got the gear quickly.
May 05, 2015, 07:17:49 AM
The power boards are probably based on something like tps40140 or ltc3829.
They could have been ordered separately. worst case, they can be used to work on other chips later.
But I expected the power supply to be built in the dev board, and price for the dev board is almost twice what I expected, so sample chips will be fine and more fun.
Anyway, my 2 chips design only needs routing to be finished.
I've been away today and will be driving back home tomorrow (9hours trip at least), so I probably won't update until Wednesday.
Sample chips price is a little bit high too, I expected something closer to 50$ each, but if price for "small batches" is right, it doesn't really matters.
Before I buy 2 or 4 of them, I'll need some more technical informations than what can be found in the partial data sheet.
I'll check tomorrow or Wednesday for what's missing.
Can I assume the chips will be sent express (dhl/FedEx) within 1 or 2 days after payment will be made?
They could have been ordered separately. worst case, they can be used to work on other chips later.
But I expected the power supply to be built in the dev board, and price for the dev board is almost twice what I expected, so sample chips will be fine and more fun.
Anyway, my 2 chips design only needs routing to be finished.
I've been away today and will be driving back home tomorrow (9hours trip at least), so I probably won't update until Wednesday.
Sample chips price is a little bit high too, I expected something closer to 50$ each, but if price for "small batches" is right, it doesn't really matters.
Before I buy 2 or 4 of them, I'll need some more technical informations than what can be found in the partial data sheet.
I'll check tomorrow or Wednesday for what's missing.
Can I assume the chips will be sent express (dhl/FedEx) within 1 or 2 days after payment will be made?
Yes, we will ship (DHL/FedEx) within 48 hours after full payment.
May 05, 2015, 07:15:01 AM
hmm added you guys on skype, but havent heard a word yet.
Sorry for my delay as we work in Chinese time, I will reply you ASAP.
May 05, 2015, 06:25:43 AM
May 05, 2015, 05:37:34 AM
Does anyone have a rough idea how soon a plug n play miner might be able to hit the market? Sounds like from a month to 3 months... It all sounds great on paper, but I've been burnt big time by KNC and I'm very vary going forward mining from home.
I currently just buy coins and only mine in small amounts now. I do have free power, but the hardware ROI is big concern, I just hope it is well priced. I cannot take another big hit like I did with KNC.
I currently just buy coins and only mine in small amounts now. I do have free power, but the hardware ROI is big concern, I just hope it is well priced. I cannot take another big hit like I did with KNC.
May 05, 2015, 05:31:26 AM
Work in progress schematics for my 2 chips board and kicad cache library have been added to my dropbox folder.
https://www.dropbox.com/sh/cjjkrq1fv2u7m0l/AADU4n7cCJsl5N1E6Qtai5M5a?dl=0
It's still work in progress, use it at your own risks.
https://www.dropbox.com/sh/cjjkrq1fv2u7m0l/AADU4n7cCJsl5N1E6Qtai5M5a?dl=0
It's still work in progress, use it at your own risks.
May 05, 2015, 04:14:01 AM
IMO the chips might not be efficient enough compared to the most efficient miners (BTC/LTC) currently. Is there synergy benefits when mining in dual mode?
Appears so.
May 05, 2015, 03:11:44 AM
IMO the chips might not be efficient enough compared to the most efficient miners (BTC/LTC) currently. Is there synergy benefits when mining in dual mode?
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