needbmw
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August 29, 2013, 09:09:34 AM |
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What are you using for spiclk speeds and bitfury clock setting?
SPI clock 500 kHz, core voltage 0.88V, internal slow osc 54 bits.
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NO PSAKING!
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LaserHorse
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 29, 2013, 10:40:10 AM |
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I've got it running 9.5GH on seven chips; was running 8.5GH on four. Pretty disappointing ![Sad](https://bitcointalk.org/Smileys/default/sad.gif) Weird - I've got a 9-chip chain that's maxing out @ 9.5GH as well. Just did a rework of my DC converter because of this and have tried all the clock settings posted here. This is why I assumed you were using an external clock when you were running 4 @ 9GH.
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giorgiomassa
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 29, 2013, 11:41:23 AM |
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Is anybody else getting those crazy spikes out of c-scape's 16 bitfury card power supply? Guess this is why my chain is highly unstable, the length is detected randomly and sometimes even not detected at all... ![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fbitmine.ch%2Fwp-content%2Fuploads%2F2013%2F08%2FSDS00006.png&t=663&c=HEln4aA-OgCOtw) Any help appreciated! Thanks
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cscape
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 29, 2013, 12:11:51 PM |
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@giorgiomassa: did you check the input voltage ? Is it stable ?
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Happy with your c-scape product ? Consider a tip: 16X2FWVRz6UzPWsu4WjKBMJatR7UvyKzcy
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giorgiomassa
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 29, 2013, 12:37:32 PM |
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@giorgiomassa: did you check the input voltage ? Is it stable ?
Yeah, 12.000V stable and no ripples, it's very strange, maybe some parts of the TPS are damaged/broken?
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Dexter770221
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Activity: 1029
Merit: 1000
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August 29, 2013, 12:45:13 PM |
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@giorgiomassa: did you check the input voltage ? Is it stable ?
Yeah, 12.000V stable and no ripples, it's very strange, maybe some parts of the TPS are damaged/broken? Or wrong value. Most likely in compensation loop.
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Under development Modular UPGRADEABLE Miner (MUM). Looking for investors. Changing one PCB with screwdriver and you have brand new miner in hand... Plug&Play, scalable from one module to thousands.
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cscape
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 29, 2013, 12:49:38 PM |
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Or wrong value. Most likely in compensation loop.
Or in the (over)current sense resistors. I assume the resistors are all unmarked ?
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Happy with your c-scape product ? Consider a tip: 16X2FWVRz6UzPWsu4WjKBMJatR7UvyKzcy
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giorgiomassa
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 29, 2013, 12:59:53 PM |
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Or wrong value. Most likely in compensation loop.
Or in the (over)current sense resistors. I assume the resistors are all unmarked ? Yeah but let me double check them one by one, thanks for the hint, I will let you know ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif)
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cscape
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 29, 2013, 01:23:58 PM |
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The 5 parallel resistors on the back are (counting from corner): 220k, 147k, 187k, 220k, 100k. Did they put silk screen on the back ?
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Happy with your c-scape product ? Consider a tip: 16X2FWVRz6UzPWsu4WjKBMJatR7UvyKzcy
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ssi
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August 29, 2013, 03:10:10 PM |
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What are you using for spiclk speeds and bitfury clock setting?
SPI clock 500 kHz, core voltage 0.88V, internal slow osc 54 bits. What software are you using?
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18xEDfc7y1Nzm2kmLvwYq56xwwEz4Fdh6
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ssi
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August 29, 2013, 05:23:39 PM |
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Pretty sure it's a software problem. Switched from cgminer to chainminer, and now I'm seeing >18GH on seven chips! ![Cheesy](https://bitcointalk.org/Smileys/default/cheesy.gif)
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18xEDfc7y1Nzm2kmLvwYq56xwwEz4Fdh6
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vulgartrendkill
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 29, 2013, 06:59:33 PM |
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Our (c-scape & intron) bi•fury board is hashing over 5 GH/sec. Screenshot from BTC Guild: ![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.imgur.com%2FJMynSa4.gif&t=663&c=HjTbIpOirkowrw) Photo of bi•fury prototype board with 2 ASICs, plugged into laptop. A fan is aimed at the board + heatsink, keeping the ASIC temperature at 45 ℃, and the rest of the board (including the regulator) at 40 ℃. Core voltage has been set at 0.84V. The extra pushbuttons, jumper, and 3 wire UART are just for testing/debugging. ![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.imgur.com%2FaVozG6t.jpg&t=663&c=5STKAtFskFwZLA) Holy thats pretty impressive ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif) Any news on full production/cost?
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vulgartrendkill
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 29, 2013, 07:00:42 PM |
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Man, I'd be all over this, but I have the EE skills of a carrot ![Sad](https://bitcointalk.org/Smileys/default/sad.gif) +1 ![Sad](https://bitcointalk.org/Smileys/default/sad.gif)
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cscape
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 29, 2013, 07:15:14 PM |
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Holy thats pretty impressive ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif) Any news on full production/cost? Like with the S-HASH design, we're not looking to mass produce this ourselves, but we're open for licensing agreements with 3rd parties to build them. It's hard to estimate a cost. It all depends on volume and what kind of deal you can make with the bitfury ASIC sellers.
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Happy with your c-scape product ? Consider a tip: 16X2FWVRz6UzPWsu4WjKBMJatR7UvyKzcy
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vulgartrendkill
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 29, 2013, 07:18:16 PM |
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Holy thats pretty impressive ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif) Any news on full production/cost? Like with the S-HASH design, we're not looking to mass produce this ourselves, but we're open for licensing agreements with 3rd parties to build them. It's hard to estimate a cost. It all depends on volume and what kind of deal you can make with the bitfury ASIC sellers. Have you approached any companies yet? This looks pretty special to me ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif) Fantastic work on those boards by the way.
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Bitcoinorama
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 29, 2013, 07:20:44 PM |
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Holy thats pretty impressive ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif) Any news on full production/cost? Like with the S-HASH design, we're not looking to mass produce this ourselves, but we're open for licensing agreements with 3rd parties to build them. It's hard to estimate a cost. It all depends on volume and what kind of deal you can make with the bitfury ASIC sellers. Have you approached any companies yet? This looks pretty special to me ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif) Fantastic work on those boards by the way. Indeed.
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Make my day! Say thanks if you found me helpful ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif) BTC Address ---> 1487ThaKjezGA6SiE8fvGcxbgJJu6XWtZp
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ssi
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August 29, 2013, 07:22:34 PM |
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I think I have a bad chip. It was acting strangely when I was testing cgminer hashing one chip at a time, reporting between 500 and 1500MH where all others were >2.5GH.
Now that I'm on chainminer, I just repopulated that chip on the board, and this seems to confirm it's marginal:
1 AIfDSo 54 2.803 2.430 109 75 0 1 128 [0:0] 663 7 7 5 6 7 7 7 8 7 6 7 8 8 6 7 6 0 2 5 2 3 3 1 5 8 5 7 6 7 11 10 0 2 AIfDSo 54 2.906 2.582 113 96 0 0 136 [0:1] 662 6 6 7 7 6 7 7 8 8 7 8 6 8 8 8 6 0 0 1 3 4 4 3 5 9 8 8 10 12 15 14 0 3 AIfDSo 54 2.340 2.620 91 56 0 0 138 [0:2] 675 5 6 6 7 6 6 5 6 3 6 5 7 6 5 6 6 1 0 0 0 3 4 5 4 6 3 4 3 7 8 8 0 4 AIfDSo 54 2.829 2.373 110 27 0 0 125 [0:3] 662 7 7 8 8 7 6 6 6 7 8 5 7 7 7 7 7 0 0 0 1 1 1 2 3 0 0 3 3 4 4 5 0 5 AIfDSo 54 2.726 2.506 106 72 0 0 132 [0:4] 675 6 6 6 7 6 7 7 8 6 8 8 7 6 6 7 5 0 1 4 4 3 4 1 4 8 5 7 6 7 9 9 0 6 AIfDSo 54 2.083 2.449 81 46 0 0 129 [0:5] 684 5 5 5 5 5 4 5 5 5 6 6 6 4 5 5 5 0 0 0 0 0 1 1 3 3 3 5 9 7 7 7 0 7 AIfDSo 54 2.495 2.430 97 120 0 0 128 [0:6] 669 5 6 6 6 7 6 7 5 7 7 6 6 6 7 6 4 1 2 2 3 1 5 5 9 10 14 14 11 13 15 14 1 8 AIfDSo 54 0.617 2.430 24 156 0 0 128 [0:7] 735 0 2 1 3 3 2 2 0 1 2 2 0 2 0 2 2 3 1 8 12 12 14 15 18 13 7 7 16 14 9 6 1 speed:432 noncerate[GH/s]:18.800 (2.350/chip) hashrate[GH/s]:19.823 good:731 errors:648 spi-errors:0 miso-errors:1 jobs:145 (record[GH/s]:0.000) 0: 432 18.800 19.823 731 648 0 1
I don't understand what all the stats mean yet, but chip #8 is the one I suspected as bad.
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18xEDfc7y1Nzm2kmLvwYq56xwwEz4Fdh6
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LaserHorse
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 29, 2013, 10:53:16 PM |
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Now that I'm on chainminer, I just repopulated that chip on the board, and this seems to confirm it's marginal:
What is this "chainminer" you speak of ![Huh](https://bitcointalk.org/Smileys/default/huh.gif)
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vs3
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 29, 2013, 11:03:47 PM |
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Now that I'm on chainminer, I just repopulated that chip on the board, and this seems to confirm it's marginal:
What is this "chainminer" you speak of ![Huh](https://bitcointalk.org/Smileys/default/huh.gif) It was announced here:
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LaserHorse
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
August 29, 2013, 11:13:24 PM |
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thnx - blinked and I missed it!
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