How many Gigs can the FPGA produce today?
A gigawatt
Topic: What to do with BFL FPGA singles now? (Read 6447 times)
A gigawatt
How many Gigs can the FPGA produce today?
Title says it all.
Now that a BFL FPGA single only breaks even with electiricty costs (depending on your rate, in CA it's negative now), what are people doing with their old BFL singles?
Each single generates roughly 0.002 BTC today, hardly worth it to keep the things on.
Now that a BFL FPGA single only breaks even with electiricty costs (depending on your rate, in CA it's negative now), what are people doing with their old BFL singles?
Each single generates roughly 0.002 BTC today, hardly worth it to keep the things on.
It's amazing how obsolete this stuff becomes. So fast!
I had 3 of these a month ago. Now they are pretty useless. But I managed to make a descent ROI on it. L
Lucky for you, at least you ROI ....
Cloud mining is the latest scam. From a math point there is no other way; it's like promising 120% return on PPS or something.
I just took a look at one of these "cloud miners". Ah look, they have "referral bonuses". I wonder if it's another multi-level-marketing scheme/scam....
Good luck :-)
C
I just took a look at one of these "cloud miners". Ah look, they have "referral bonuses". I wonder if it's another multi-level-marketing scheme/scam....
Good luck :-)
C
Title says it all.
Now that a BFL FPGA single only breaks even with electiricty costs (depending on your rate, in CA it's negative now), what are people doing with their old BFL singles?
Each single generates roughly 0.002 BTC today, hardly worth it to keep the things on.
Now that a BFL FPGA single only breaks even with electiricty costs (depending on your rate, in CA it's negative now), what are people doing with their old BFL singles?
Each single generates roughly 0.002 BTC today, hardly worth it to keep the things on.
It's amazing how obsolete this stuff becomes. So fast!
I had 3 of these a month ago. Now they are pretty useless. But I managed to make a descent ROI on it. L
Kramble,
I've got two Ztex x6500s. I'm an FPGA newb but learn quickly. Could you give me a starting point or direction on how to get Blakecoin ported?
I downloaded one of your bitstreams and modified the User ID in a hex editor so that BFGMiner would load it onto the FPGA. Then I tried to use Reaper-Blakecoin to detect the FPGAs and mine but no joy. Am I close?
I've got two Ztex x6500s. I'm an FPGA newb but learn quickly. Could you give me a starting point or direction on how to get Blakecoin ported?
I downloaded one of your bitstreams and modified the User ID in a hex editor so that BFGMiner would load it onto the FPGA. Then I tried to use Reaper-Blakecoin to detect the FPGAs and mine but no joy. Am I close?
Nice thinking, but the I/O for the Ztex boards is different from the Lancelot so the bitstream won't work as-is. I'll do a quick port for you to try out (I'll base it on the published code in http://www.ztex.de/btcminer/ZtexBTCMiner-121126.tar.bz2). I did something similar for Litecoin (see https://github.com/kramble/FPGA-Litecoin-Miner/tree/master/experimental/ZTEX) which Vpereira was going to test, though I've not had much feedback recently. Blake should be simpler though as it uses the same midstream/data interface as bitcoin (unlike litecoin which required the full block header).
There may be an issue with the midstate as blake uses a different algorithm, so unless reaper sends the modified midstate it won't work. Perhaps modifying the Ztex Java miner would work, or a cgminer port?
Could you let me know the User ID that I need to embed in the bitstream?
I'll get onto this tomorrow. Probably best to follow-up on the Blakecoin thread as its a bit OT here.
Regards
Mark
I notice that the BFGMiner was looking for "UserID=0x42240402" for the Ztex x6500 so I used the Bless Hex Editor in Ubuntu and modified yours to that. BFGMiner loaded the entire bitstream without a problem.
I'll resume this topic on the Blakecoin thread.
Kramble,
I've got two Ztex x6500s. I'm an FPGA newb but learn quickly. Could you give me a starting point or direction on how to get Blakecoin ported?
I downloaded one of your bitstreams and modified the User ID in a hex editor so that BFGMiner would load it onto the FPGA. Then I tried to use Reaper-Blakecoin to detect the FPGAs and mine but no joy. Am I close?
I've got two Ztex x6500s. I'm an FPGA newb but learn quickly. Could you give me a starting point or direction on how to get Blakecoin ported?
I downloaded one of your bitstreams and modified the User ID in a hex editor so that BFGMiner would load it onto the FPGA. Then I tried to use Reaper-Blakecoin to detect the FPGAs and mine but no joy. Am I close?
Nice thinking, but the I/O for the Ztex boards is different from the Lancelot so the bitstream won't work as-is. I'll do a quick port for you to try out (I'll base it on the published code in http://www.ztex.de/btcminer/ZtexBTCMiner-121126.tar.bz2). I did something similar for Litecoin (see https://github.com/kramble/FPGA-Litecoin-Miner/tree/master/experimental/ZTEX) which Vpereira was going to test, though I've not had much feedback recently. Blake should be simpler though as it uses the same midstream/data interface as bitcoin (unlike litecoin which required the full block header).
There may be an issue with the midstate as blake uses a different algorithm, so unless reaper sends the modified midstate it won't work. Perhaps modifying the Ztex Java miner would work, or a cgminer port?
Could you let me know the User ID that I need to embed in the bitstream?
I'll get onto this tomorrow. Probably best to follow-up on the Blakecoin thread as its a bit OT here.
Regards
Mark
I notice that the BFGMiner was looking for "UserID=0x42240402" for the Ztex x6500 so I used the Bless Hex Editor in Ubuntu and modified yours to that. BFGMiner loaded the entire bitstream without a problem.
Kramble,
I've got two Ztex x6500s. I'm an FPGA newb but learn quickly. Could you give me a starting point or direction on how to get Blakecoin ported?
I downloaded one of your bitstreams and modified the User ID in a hex editor so that BFGMiner would load it onto the FPGA. Then I tried to use Reaper-Blakecoin to detect the FPGAs and mine but no joy. Am I close?
I've got two Ztex x6500s. I'm an FPGA newb but learn quickly. Could you give me a starting point or direction on how to get Blakecoin ported?
I downloaded one of your bitstreams and modified the User ID in a hex editor so that BFGMiner would load it onto the FPGA. Then I tried to use Reaper-Blakecoin to detect the FPGAs and mine but no joy. Am I close?
Nice thinking, but the I/O for the Ztex boards is different from the Lancelot so the bitstream won't work as-is. I'll do a quick port for you to try out (I'll base it on the published code in http://www.ztex.de/btcminer/ZtexBTCMiner-121126.tar.bz2). I did something similar for Litecoin (see https://github.com/kramble/FPGA-Litecoin-Miner/tree/master/experimental/ZTEX) which Vpereira was going to test, though I've not had much feedback recently. Blake should be simpler though as it uses the same midstream/data interface as bitcoin (unlike litecoin which required the full block header).
There may be an issue with the midstate as blake uses a different algorithm, so unless reaper sends the modified midstate it won't work. Perhaps modifying the Ztex Java miner would work, or a cgminer port?
Could you let me know the User ID that I need to embed in the bitstream?
I'll get onto this tomorrow. Probably best to follow-up on the Blakecoin thread as its a bit OT here.
Regards
Mark
You can try mining blakecoin. it's not scrypt or sha-256 there is FPGA miner for it.
https://bitcointalksearch.org/topic/m.3290239
github.com/kramble/FPGA-Blakecoin-Miner
https://bitcointalksearch.org/topic/m.3290239
github.com/kramble/FPGA-Blakecoin-Miner
Sorry to disappoint, but even if the devices can be unlocked (which I doubt), there is no current port for the EP3SL150F780, and there is also the problem of the onboard MCU and a software driver.
You'll be better (if you have the kit) trying the Lancelot port (which does work, though with a quirky python mining driver), or maybe a Ztex which should be a fairly trivial hack, though as I don't have a board to test on somebody else will have to trailblaze this.
Kramble,
I've got two Ztex x6500s. I'm an FPGA newb but learn quickly. Could you give me a starting point or direction on how to get Blakecoin ported?
I downloaded one of your bitstreams and modified the User ID in a hex editor so that BFGMiner would load it onto the FPGA. Then I tried to use Reaper-Blakecoin to detect the FPGAs and mine but no joy. Am I close?
Thanks in advance,
atavacron
I don't know the technical details - but I'm guessing that's a no? It can't be used to mine alt coins?
You can try mining blakecoin. it's not scrypt or sha-256 there is FPGA miner for it.
https://bitcointalksearch.org/topic/m.3290239
github.com/kramble/FPGA-Blakecoin-Miner
https://bitcointalksearch.org/topic/m.3290239
github.com/kramble/FPGA-Blakecoin-Miner
Sorry to disappoint, but even if the devices can be unlocked (which I doubt), there is no current port for the EP3SL150F780, and there is also the problem of the onboard MCU and a software driver.
You'll be better (if you have the kit) trying the Lancelot port (which does work, though with a quirky python mining driver), or maybe a Ztex which should be a fairly trivial hack, though as I don't have a board to test on somebody else will have to trailblaze this.
You can try mining blakecoin. it's not scrypt or sha-256 there is FPGA miner for it.
https://bitcointalksearch.org/topic/m.3290239
Block reward is 25 coin + inflation (square root of (difficulty + block height))
No halfing of reward after x blocks
Cap in place to reduce the difficulty jumps upwards
Block target time is 3 minutes and retargets every hour
7 Billion coins
Block maturity 120
Thanks to the efforts of kramble, Blakecoin has been successfully ported to the FPGA (early development)
FPGA-Blakecoin-Miner by kramble
https://github.com/kramble/FPGA-Blakecoin-Miner
https://bitcointalksearch.org/topic/m.3290239
Block reward is 25 coin + inflation (square root of (difficulty + block height))
No halfing of reward after x blocks
Cap in place to reduce the difficulty jumps upwards
Block target time is 3 minutes and retargets every hour
7 Billion coins
Block maturity 120
Thanks to the efforts of kramble, Blakecoin has been successfully ported to the FPGA (early development)
FPGA-Blakecoin-Miner by kramble
https://github.com/kramble/FPGA-Blakecoin-Miner
I could use one of these for these for the museum
Lol - I'm honestly too lazy to send it. You guys can always try ebay =)
Naah. Just lost a $400 bid on a beautiful 8k watch on Ebay, it's the place of sad dreams.
Lol - I'm honestly too lazy to send it. You guys can always try ebay =)
I kept my brick =)
I don't think anyone will buy it at this point.
I'd buy it for $25 as a curiosity and maybe to run it on a solar panel.I don't think anyone will buy it at this point.
C
I'll buy it for 50 each for the same points mentioned above.
I kept my brick =)
I don't think anyone will buy it at this point.
I'd buy it for $25 as a curiosity and maybe to run it on a solar panel.I don't think anyone will buy it at this point.
C
I kept my brick =)
I don't think anyone will buy it at this point.
I don't think anyone will buy it at this point.
Keep it as a collection and show it to your kids next time 
I think this is what I decided to do. Sell it on ebay what probably the best suggestion, but today they go for less than $100 and at that price it would be nice to just hold onto the brick for sentimental purposes. If I had more than 1 though I'd sell the extra's on ebay.
They have two, quite expensive, FPGA chips inside. They could be recovered and used elsewhere.
According to Ngzhang they are EP3SL150F780 https://bitcointalksearch.org/topic/ok-i-confirmed-the-model-of-fpga-they-are-using-in-bfl-single-79825
Some additional info https://bitcointalksearch.org/topic/paid-bounty-5-btc-for-die-size-of-altera-ep3sl150f780-aka-bfl-single-123155
However the bitstream is protected (see http://www.altera.co.uk/literature/wp/wp-01010.pdf) and if BFL used the poly-fuse option rather than battery-backup, the devices may be unusable (I defer to rasorfishsl upthread, but AFAIK poly-fuses are one-time programmable and if the tamper flag is set the devices are junk without the master key).
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