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Topic: [ANN] Bitfury is looking for alpha-testers of first chips! FREE MONEY HERE! - page 43. (Read 176729 times)
June 24, 2013, 01:59:13 PM
Google translation of a russian webpost from today:
http://translate.google.com/translate?sl=ru&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&u=http%3A%2F%2Fhabrahabr.ru%2Fpost%2F184506%2F
http://translate.google.com/translate?sl=ru&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&u=http%3A%2F%2Fhabrahabr.ru%2Fpost%2F184506%2F
June 24, 2013, 01:42:16 PM
Latest test was done to maximize performance, while
keeping chip temperature below 50 degrees C. A small
heatsink was mounted on the bottom of the PCB, and
cooled with a fan to control the temperature.
Internal oscillator set to slow mode, using { 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0x3F, 0x00 } configuration, which
is slightly faster than bitfury's example code.
Vcore at 0.835 Volts, resulting in 2.5A current (2.1W). Clock
frequency of 230 MHz. Instead of bitfury's test vectors, a
test was done with 2048 more or less random vectors.
Based on 756 cores, a yield of 1512 valid hashes would be
expected, but 1511 were found, so COP is very close to 1.
Net hash rate would be almost 2.7 GH/sec @ 0.8W/GH.
With one extra clock bit, core clock increased, but COP
ropped to 0.94, resulting in lower net hash rate.
keeping chip temperature below 50 degrees C. A small
heatsink was mounted on the bottom of the PCB, and
cooled with a fan to control the temperature.
Internal oscillator set to slow mode, using { 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0x3F, 0x00 } configuration, which
is slightly faster than bitfury's example code.
Vcore at 0.835 Volts, resulting in 2.5A current (2.1W). Clock
frequency of 230 MHz. Instead of bitfury's test vectors, a
test was done with 2048 more or less random vectors.
Based on 756 cores, a yield of 1512 valid hashes would be
expected, but 1511 were found, so COP is very close to 1.
Net hash rate would be almost 2.7 GH/sec @ 0.8W/GH.
With one extra clock bit, core clock increased, but COP
ropped to 0.94, resulting in lower net hash rate.
June 23, 2013, 05:15:47 AM
Can't write comments on bitbet.us site... It would be great if they're copy this as well in comments... Sent payouts:
http://bitbet.us/bet/450/bitfurys-asic-will-work-with-power-1/
DATE (2013-06-19 02:08:28) FOR BLOCKCHAIN LOOKUPS:
BET OUTGOING WALLET PAID AMOUNT (WIN)
0.1 1CvadbWnVotoUhrrepxEGqESakmuqHtwnE 0.2
1.0 1NxPnXyN4XmxjysUxLXVXgNGFhYCEGFASV 1.9
10.0 19d6exSEyAPDXLLe3W3ucexpVXUABFeFsy 18.6
1.0 1HP9pTD9ueGYnkEA7Wj7D4SBCesTxXVsNb 1.9
0.044 1GnK5jZxzhFnKCu2yu89XP2JKvBME1em6A 0.1
5.0 16dQP7Nr1irruUTAbiiwYgNB7jQ8NpEVQ3 9.3
1.0 1DEVgggHwKngXf6YSn8ZNBvESTzCDiQWE2 1.9
0.002 1MoaWWXfSFWv6wYpKJEQiRjkmn8gHKBieK 0.1
0.052 19XHbghMRS9HhvWMoKhW8zKFYBSLVz69gB 0.1
4.0 1FzPgqnBrkBZanZwHaAmnd5wRxeDarwr9b 7.4
0.5 1CUanrri8gqXnU8e6bP2Tq8j2DSeBt5Tym 0.9
27.0 1MXf4cFD7EETFQEqD7QdLHbJeGVZfLnbaV 50.2
1.0 1DUv9KXp5CVaEdjvwg5GRUEZ5AhPVy8mnV 1.9
1.5 17xHzsvibCp9SKHParBaHVNZ5yykcjiRTk 2.8
0.05 13ZCqhVuvGL5RqF8WhUdiSFKDScZLZ7Jcz 0.1
0.01 1JCKtVk5W2LVsJiSHGXAcHeRMbZW6RXDAf 0.1
6 13X6T4iGWNHwPstvda7J1XDHbdiugio3j9 11.2
http://bitbet.us/bet/450/bitfurys-asic-will-work-with-power-1/
DATE (2013-06-19 02:08:28) FOR BLOCKCHAIN LOOKUPS:
BET OUTGOING WALLET PAID AMOUNT (WIN)
0.1 1CvadbWnVotoUhrrepxEGqESakmuqHtwnE 0.2
1.0 1NxPnXyN4XmxjysUxLXVXgNGFhYCEGFASV 1.9
10.0 19d6exSEyAPDXLLe3W3ucexpVXUABFeFsy 18.6
1.0 1HP9pTD9ueGYnkEA7Wj7D4SBCesTxXVsNb 1.9
0.044 1GnK5jZxzhFnKCu2yu89XP2JKvBME1em6A 0.1
5.0 16dQP7Nr1irruUTAbiiwYgNB7jQ8NpEVQ3 9.3
1.0 1DEVgggHwKngXf6YSn8ZNBvESTzCDiQWE2 1.9
0.002 1MoaWWXfSFWv6wYpKJEQiRjkmn8gHKBieK 0.1
0.052 19XHbghMRS9HhvWMoKhW8zKFYBSLVz69gB 0.1
4.0 1FzPgqnBrkBZanZwHaAmnd5wRxeDarwr9b 7.4
0.5 1CUanrri8gqXnU8e6bP2Tq8j2DSeBt5Tym 0.9
27.0 1MXf4cFD7EETFQEqD7QdLHbJeGVZfLnbaV 50.2
1.0 1DUv9KXp5CVaEdjvwg5GRUEZ5AhPVy8mnV 1.9
1.5 17xHzsvibCp9SKHParBaHVNZ5yykcjiRTk 2.8
0.05 13ZCqhVuvGL5RqF8WhUdiSFKDScZLZ7Jcz 0.1
0.01 1JCKtVk5W2LVsJiSHGXAcHeRMbZW6RXDAf 0.1
6 13X6T4iGWNHwPstvda7J1XDHbdiugio3j9 11.2
+1 impressive
It is too bad you don't sell your products to the rest of the world though... you allow lucky Russian citizens to charge huge mark ups for customers wanting to buy your product in the rest of the world. If they are going to ship worldwide for a profit, why not charge more and ship worldwide yourselves?
I would have bought some units, but honestly I didn't want to order through some sketchy Jr. member. I trust you Bitfury, but not some random person that is reselling your units for profit...
This.
June 22, 2013, 07:37:20 PM
Got bitfury's SPI code working, needed some porting to the smaller
ARM processor, and the ASIC responded nicely. Voltage was adjusted
to 0V64, yielding a current of 1 A. Clock was measured, 116 Mc.
bitfury's testvectors were applied to the ASIC and 100 vectors
gave 145 results, not unlike the result bitfury himself got.
The level shifter in the original schematic works just fine,
so I guess there is no need to fall back to analog pass logic
tricks:) To be safe core power was applied first, then IOVDD.
This was done manually, will be automated in a later design.
intron | c-scape
ARM processor, and the ASIC responded nicely. Voltage was adjusted
to 0V64, yielding a current of 1 A. Clock was measured, 116 Mc.
bitfury's testvectors were applied to the ASIC and 100 vectors
gave 145 results, not unlike the result bitfury himself got.
The level shifter in the original schematic works just fine,
so I guess there is no need to fall back to analog pass logic
tricks:) To be safe core power was applied first, then IOVDD.
This was done manually, will be automated in a later design.
intron | c-scape
145 results are all that exists there (not all vectors has answers) - there's 756 cores out of 1024 possible values ;-) so not whole range is scanned.
116 Mhz is making theoretical Gh/s like 116*756/65 = 1365 Mh/s = 1.36 Gh/s :-) Not bad :-) 0.468 W / Gh/s :-)
You can try to increase/decrease voltage - frequency follows voltage automatically.
Also you can switch to external oscillator and check for max frequency - this is what I haven't researched yet.
However - if you get less than 145 results for specified test vector -- this means that some cores are failing at specified frequency ==> less coefficient of performance (COP) - so you should derate real gh/s that you'll get from chip.
June 22, 2013, 02:51:05 PM
Picture of the FXLP34P5X 1V8 to 3V3 level shifter performance:
http://imgur.com/9bII5tc
Blue trace is the 1V8 signal coming from the bitfury ASIC,
the yellow one is the 3V3 signal going to the ARM processor.
Nice, crisp signals, only a small output delay can be seen.
So no worries here...
intron
http://imgur.com/9bII5tc
Blue trace is the 1V8 signal coming from the bitfury ASIC,
the yellow one is the 3V3 signal going to the ARM processor.
Nice, crisp signals, only a small output delay can be seen.
So no worries here...
intron
June 22, 2013, 02:23:04 PM
Got bitfury's SPI code working, needed some porting to the smaller
ARM processor, and the ASIC responded nicely. Voltage was adjusted
to 0V64, yielding a current of 1 A. Clock was measured, 116 Mc.
bitfury's testvectors were applied to the ASIC and 100 vectors
gave 145 results, not unlike the result bitfury himself got.
The level shifter in the original schematic works just fine,
so I guess there is no need to fall back to analog pass logic
tricks:) To be safe core power was applied first, then IOVDD.
This was done manually, will be automated in a later design.
intron | c-scape
ARM processor, and the ASIC responded nicely. Voltage was adjusted
to 0V64, yielding a current of 1 A. Clock was measured, 116 Mc.
bitfury's testvectors were applied to the ASIC and 100 vectors
gave 145 results, not unlike the result bitfury himself got.
The level shifter in the original schematic works just fine,
so I guess there is no need to fall back to analog pass logic
tricks:) To be safe core power was applied first, then IOVDD.
This was done manually, will be automated in a later design.
intron | c-scape
June 22, 2013, 07:11:21 AM
Watching. I'd like to see some results from independent testers. May be they can squeeze out more Gh/s from this chip than it's creator.
June 22, 2013, 12:08:39 AM
I'd like to get on the tester list too if that's all right, maybe try to get a pi-mac setup working with MacMiner.
June 21, 2013, 05:16:07 PM
Congratulations Bitfury!
I should be #6 on the waiting list ; please send samples to me so I can tinker with them
I think I said this before, but I work for the #2 supplier of chip packaging solutions in the world. I have a Russian translator, and 1-2 Electrical Engineers on hand to help find improvements.
I can probably find resources to help get this thing going faster.
I should be #6 on the waiting list ; please send samples to me so I can tinker with them
I think I said this before, but I work for the #2 supplier of chip packaging solutions in the world. I have a Russian translator, and 1-2 Electrical Engineers on hand to help find improvements.
I can probably find resources to help get this thing going faster.
The current chips are in 7x7 QFN48 package and the die is 3.78x3.78. We are trying to find ways to reduce the inductance on (length of) the package bonds and going to a 6x6 package is an option. Another option would be to create a multi chip package or a chip scale package that would add more capacitance closer to the die. Your ideas on that would be welcome.
We will compile a list of tester early next week.
June 21, 2013, 04:57:29 PM
Congratulations Bitfury!
I should be #6 on the waiting list ; please send samples to me so I can tinker with them
I think I said this before, but I work for the #2 supplier of chip packaging solutions in the world. I have a Russian translator, and 1-2 Electrical Engineers on hand to help find improvements.
I can probably find resources to help get this thing going faster.
I should be #6 on the waiting list ; please send samples to me so I can tinker with them
I think I said this before, but I work for the #2 supplier of chip packaging solutions in the world. I have a Russian translator, and 1-2 Electrical Engineers on hand to help find improvements.
I can probably find resources to help get this thing going faster.
June 21, 2013, 04:39:59 PM
First I would like to say that chip is working. Complete confirmation using test-vectors.
Congratulations. I've added your chip to the η-factor rankings, which it currently leads by a factor of 5x (!).
(Edit: bitfury's chip is 55nm not 65nm)
June 21, 2013, 05:14:31 AM
We will start sending chips beginning of next week. Probably Monday. I will try to give more detailed info about this tomorrow.
Great news
June 21, 2013, 05:04:47 AM
We will start sending chips beginning of next week. Probably Monday. I will try to give more detailed info about this tomorrow.
June 21, 2013, 04:59:51 AM
Well done, chaps.
June 21, 2013, 04:06:37 AM
I am very interesting in using bitfury chip to making USB miner
I working on samll size modules in communication industry
I have a lab with everything you mentioned (even up to 10Ghz DCA)
And a whole firmware and hardware team supporting
I hope you can send me some chips for evaluations
http://bbs.xiyuit.com/attachments/month_1306/1306211646ef12a6db526592a2.jpg.thumb.jpg
http://bbs.xiyuit.com/attachments/month_1306/1306211646521584c0c7ea6442.jpg.thumb.jpg
http://bbs.xiyuit.com/attachments/month_1306/1306211645cf62f16a5e86ceab.jpg.thumb.jpg
I working on samll size modules in communication industry
I have a lab with everything you mentioned (even up to 10Ghz DCA)
And a whole firmware and hardware team supporting
I hope you can send me some chips for evaluations
http://bbs.xiyuit.com/attachments/month_1306/1306211646ef12a6db526592a2.jpg.thumb.jpg
http://bbs.xiyuit.com/attachments/month_1306/1306211646521584c0c7ea6442.jpg.thumb.jpg
http://bbs.xiyuit.com/attachments/month_1306/1306211645cf62f16a5e86ceab.jpg.thumb.jpg
June 21, 2013, 03:39:19 AM
Guess since it works they won't be sending any chips.
bitfury is a serious man, he said that he will send chips to some developers fast and then he will contact the others that want to participate in the test and will send chips to them by slower mail I am shure that he will send chip to us, me and some of the forum members have invested in expensive power supply boards, variablle oscillators and other parts needed for the test .
June 21, 2013, 12:20:14 AM
Uh, I'm pretty sure he said he'd prefer air cooling, not that it is a necessity. Thanks sir.
June 20, 2013, 11:27:40 PM
Adeel06, I logged in just to add you to my ignore list.
The first post explained what testing was required, and even why. I'll admit the title was a little misleading: you have to work for your "FREE MONEY".
The first post explained what testing was required, and even why. I'll admit the title was a little misleading: you have to work for your "FREE MONEY".
June 20, 2013, 11:19:25 PM
Guess since it works they won't be sending any chips. Damn ;(. Wanted to see what would happen past 1.1V using a copper based water cooling block on every chip. The expense may outweigh the benefit, but since the chips were going to be free, I was willing to try it and see just how much we can get out of these. Blahhhhhhh 
. Anyone want to send me 16 chips written for SHA256 arch to overclock the shhh out of? 
. Anyone want to send me 16 chips written for SHA256 arch to overclock the shhh out of? June 20, 2013, 10:36:05 PM
Hi,
I didn't read through this all but I would be willing to test some chips. Don't need 30 (unless you guys want to part with 30?). 16 would be more than enough to fill a PCB board that would probably run at 4.8gh/s x 16 = ~77gh/s. This of course is an underestimation, I am sure we can get levels over 5 gh/s. I do have a question for the op though, would you mind if I implemented self-made water cooling blocks on each chip so I could tinker with voltage and temp and try to squeeze the max out of the chips or do you want a "normal" set up to compare to the systems youre selling? By the way, for my legitimacy, I have owned online businesses since '03. My most recent project, www.limitlessbids.com , has excellent reviews on the various rating sites. I havent been working on the site though in the past 3 months because of school and bitcoin but it should suffice as proof that I'm not some scammer.
- Adeel Adam Anwar
I didn't read through this all but I would be willing to test some chips. Don't need 30 (unless you guys want to part with 30?
). 16 would be more than enough to fill a PCB board that would probably run at 4.8gh/s x 16 = ~77gh/s. This of course is an underestimation, I am sure we can get levels over 5 gh/s. I do have a question for the op though, would you mind if I implemented self-made water cooling blocks on each chip so I could tinker with voltage and temp and try to squeeze the max out of the chips or do you want a "normal" set up to compare to the systems youre selling? By the way, for my legitimacy, I have owned online businesses since '03. My most recent project, www.limitlessbids.com , has excellent reviews on the various rating sites. I havent been working on the site though in the past 3 months because of school and bitcoin but it should suffice as proof that I'm not some scammer.- Adeel Adam Anwar
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