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[LTC] Changing the litecoin Proof of Work function to avoid ASIC mining? Altcoin Discussion
The miners can vote on whether they wish to change a protocol rule, as was the c…
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n/a | rph | December 06, 2013, 01:38:04 AM |
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[LTC] Changing the litecoin Proof of Work function to avoid ASIC mining? Altcoin Discussion
But if you change the POW periodically in ways which aren't predicable months in…
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n/a | rph | December 06, 2013, 01:18:50 AM |
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[GLBSE] Diablo Insurance - Butterfly Labs BitForce SC Insurance (6,390:24,680) Securities
I really like the general idea, but, with a constant price and an enormous suppl…
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n/a | rph | August 16, 2012, 10:20:28 PM |
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Algorithmically placed FPGA miner: 255MH/s/chip, supports all known boards Hardware
This project rocks. 248MH/s, 39.5C, 1.279V (girard on a -2C)-rph
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n/a | rph | August 07, 2012, 12:39:15 AM |
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Algorithmically placed FPGA miner: 255MH/s/chip, supports all known boards Hardware
ET, I could use some bitstream tech support when you get a chance.. C22 no worky…
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n/a | rph | July 26, 2012, 11:04:06 PM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
Don't believe everything you read Bitcoin ASICs are marketing vaporware.I doub…
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n/a | rph | July 14, 2012, 12:01:45 AM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
This thread is not dead. It's just been hibernating. I am very happy to announc…
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n/a | rph | July 02, 2012, 11:14:59 PM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
Skillet-reflowed and ultra cheap. No need to pay $500+ for an eval board or $50+…
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n/a | rph | September 20, 2011, 12:28:19 PM |
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Algorithmically placed FPGA miner: 245MH/s/chip and still rising Hardware
230MH/s, 0% errors, 21.17MH/JSweet! That's at ~1.26V, so only around 8.5A (long…
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n/a | rph | July 02, 2012, 10:32:19 PM |
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FGPA Gerber Files Hardware
At the moment, nobody has published free/open gerbers for an FPGA miner. Schemat…
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n/a | rph | July 02, 2012, 12:13:22 PM |
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ZTEX voltmod Hardware
ZTEX voltmod by rph
And Xilinx told me that 45nm performance was not strongly voltage-sensitive.. -r…
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n/a | rph | July 02, 2012, 12:10:28 PM |
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FPGA development board "Lancelot" - official discussion thread. Hardware
It helps but logic/RTL verification is one of the easiest steps in a modern ASIC…
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n/a | rph | June 20, 2012, 10:00:25 PM |
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FPGA development board "Lancelot" - official discussion thread. Hardware
ASICs will fuck all FGPAs to shit.Only if it's full custom below ~90nm, which me…
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n/a | rph | June 20, 2012, 09:52:00 PM |
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Free 4xSpartan 6 DIY design and schematics!!! Hardware
A bitcoin fpga mining project will take at least 3 months of your life. Even w…
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n/a | rph | March 24, 2012, 03:07:02 AM |
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Butterfly Labs - Bitforce Single and Rig Box Off-topic
-has all the FPGA competition been wiped out with this weapon ? BFL's performanc…
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n/a | rph | February 24, 2012, 12:11:53 AM |
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Nanominer - Modular FPGA Mining Platform Hardware
Rather, I think the 5ns clock cycle is due to two sequential 32 bit additions, i…
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n/a | rph | February 22, 2012, 01:25:49 PM |
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1GH/s, 20w, $700 (was $500) — Butterflylabs, is it for real? (Part 2) Off-topic
Show me one shipping unit that comes anywhere even CLOSE to BFL's offering. Go…
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n/a | rph | February 20, 2012, 12:19:40 AM |
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Nanominer - Modular FPGA Mining Platform Hardware
5 ns, that is a delay straight from the 70s. A TTL technology-like delay. Certai…
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n/a | rph | February 16, 2012, 01:03:08 AM |
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FPGA Miners? Hardware
FPGA Miners? by rph
The resale risk, BTCs USD value risk, if I had 10k to spend I'd still go with GP…
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n/a | rph | February 16, 2012, 12:36:15 AM |
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1GH/s, 20w, $700 (was $500) — Butterflylabs, is it for real? (Part 2) Off-topic
Far outpacing any other FPGA offering.Give me a break.Its performance per watt i…
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n/a | rph | February 16, 2012, 12:09:49 AM |
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What happens when the block reward halves to 25? Mining speculation
IMO the block reward reduction "singularity" is one of the only real design flaw…
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n/a | rph | February 04, 2012, 12:46:29 AM |
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BTCMiner - Open Source Bitcoin Miner for ZTEX FPGA Boards, now 200 MH/s on LX150 Mining software (miners)
newer 1.15x FPGA boards have speed grade -N3 FPGA's. According to the specs this…
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n/a | rph | February 02, 2012, 03:44:49 AM |
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1GH/s, 20w, $700 (was $500) — Butterflylabs, is it for real? (Part 2) Off-topic
Yes, it's a compelling idea. FPGA prices rise super- linear, i.e. an FPGA with t…
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n/a | rph | January 28, 2012, 03:17:11 AM |
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1GH/s, 20w, $700 (was $500) — Butterflylabs, is it for real? (Part 2) Off-topic
I'm pulling this thing off of BitcoinFPGA. They claimed to ship in
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n/a | rph | January 25, 2012, 04:54:16 AM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
Please explain how if someone added 100 GH/s of new GPU hashing power difficulty…
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n/a | rph | January 16, 2012, 12:04:10 AM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
I hope that people continue to build large GPU rigs in low-power-cost areas - me…
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n/a | rph | January 15, 2012, 11:58:18 PM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
just look at what Butterfly Labs is offering....BFL has less than half the MH/W…
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n/a | rph | January 13, 2012, 04:03:35 AM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
ASICs aren't on the way. Not in 2012 likely not in 2020. If Bitcoin gets as bi…
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n/a | rph | January 13, 2012, 03:56:34 AM |
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Complete list of Built/Tested/Shipping ASIC/FPGA Miner Products Mining
This thread has been superseded by the product comparison table on BitcoinFPGA-r…
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n/a | rph | January 08, 2012, 11:46:12 PM |
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Complete list of Built/Tested/Shipping ASIC/FPGA Miner Products Mining
This thread has been superseded by the product comparison table on BitcoinFPGA--…
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n/a | rph | November 12, 2011, 11:21:19 PM |
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FPGA mining for fun and profit Mining
Unfortunately, you won't be making a PCB for the LX-150 on a mill. It's a 484 p…
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n/a | rph | January 05, 2012, 11:25:42 PM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
An Arduino would work as the USB interface/controller but I prefer the ARM Corte…
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n/a | rph | January 04, 2012, 02:54:34 AM |
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FPGA Chip Plot Thread Hardware
Are you seriously running all those instances? I hope not for too long...They're…
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n/a | rph | January 01, 2012, 02:47:17 PM |
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FPGA Chip Plot Thread Hardware
Yeesh, finally figured out how to force the router to do what I want.heh, I'm st…
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n/a | rph | December 31, 2011, 11:25:17 PM |
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Raspberry Pi $25 PC - Could we run GPUs/FPGAs on this? CPU/GPU Bitcoin mining hardware
This looks cool, but when you can buy an Atom mini ITX motherboard for $25 more.…
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n/a | rph | December 28, 2011, 02:35:33 AM |
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1GH/s, 20w, $700 (was $500) — Butterflylabs, is it for real? (Part 2) Off-topic
I highly doubt we will see any FPGA board based on 28 nm FPGA in the near and mi…
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n/a | rph | December 23, 2011, 12:24:13 AM |
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Complete list of Built/Tested/Shipping ASIC/FPGA Miner Products Mining
Maybe largecoin is behind BFL?/ducks-rph
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n/a | rph | December 23, 2011, 12:07:55 AM |
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1GH/s, 20w, $700 (was $500) — Butterflylabs, is it for real? (Part 2) Off-topic
Are these shipping yet? If not, what's the ship date?-rph
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n/a | rph | December 20, 2011, 01:23:13 PM |
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Complete list of Built/Tested/Shipping ASIC/FPGA Miner Products Mining
Added Icarus. Lots of HW options now, it looks like 2012 will be the year of FPG…
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n/a | rph | December 20, 2011, 01:11:38 PM |
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Complete list of Built/Tested/Shipping ASIC/FPGA Miner Products Mining
I'm waiting for someone to receive, and confirm price, performance, and if possi…
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n/a | rph | December 17, 2011, 12:30:04 PM |
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Complete list of Built/Tested/Shipping ASIC/FPGA Miner Products Mining
I got my X6500 from fpgamining.com a few days ago and finally got around to gett…
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n/a | rph | December 12, 2011, 10:59:55 PM |
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1GH/s, 20w, $700 (was $500) — Butterflylabs, is it for real? (Part 2) Off-topic
you mean 1.5MH/$? yeah, it's extremely possible in the next 6-8week. Meaning $1…
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n/a | rph | December 09, 2011, 05:15:47 PM |
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Purchasing a Bitforce unit = betting on stagnation? CPU/GPU Bitcoin mining hardware
12 months is a very good return time in real world.Exactly. Those complaining ab…
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n/a | rph | December 08, 2011, 05:12:47 PM |
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1GH/s, 20w, $700 (was $500) — Butterflylabs, is it for real? (Part 2) Off-topic
I'm willing to pay up to $0.75/MH for FPGA-based miners, because going from 400W…
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n/a | rph | December 05, 2011, 03:02:00 AM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
Thanks guys. There's some crazy stuff in the works! -rph
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n/a | rph | December 03, 2011, 09:38:27 PM |
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1GH/s, 20w, $500 — Butterflylabs, is it a scam? Off-topic
rph is advertising his boards at ~1$ per MH, but not for sell... My design is DI…
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n/a | rph | December 01, 2011, 01:12:00 PM |
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POLL: Miners, do you pay for electricity? Mining
Wow that's almost 25 MH/W.25-30MH/W is typical for Spartan6 FPGAs. I'm seeing ~6…
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n/a | rph | December 01, 2011, 03:05:50 AM |
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1GH/s, 20w, $500 — Butterflylabs, is it a scam? Off-topic
Given equal technology (MH per watt) - a miner's operational profitability depen…
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n/a | rph | November 30, 2011, 12:57:55 PM |
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1GH/s, 20w, $500 — Butterflylabs, is it a scam? Off-topic
It does what it was designed to do and at the performance levels intended.... th…
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n/a | rph | November 29, 2011, 11:48:20 PM |
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FPGA development board "Icarus" for mining purpose - PCB design file released Hardware
Two Virtex 6 with 350k LE's would do the job but also crack the 1000$ frontier e…
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n/a | rph | November 27, 2011, 04:31:58 PM |
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1GH/s, 20w, $500 — Butterflylabs, is it a scam? Off-topic
Don't get fooled by xilinx S6 perf/power, those are the worst of all 45/40nm FPG…
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n/a | rph | November 27, 2011, 03:12:06 PM |
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1GH/s, 20w, $500 — Butterflylabs, is it a scam? Off-topic
Well, lets look at the numbers we have. Right now the best FGPA board seems to b…
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n/a | rph | November 26, 2011, 04:57:22 PM |
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1GH/s, 20w, $500 — Butterflylabs, is it a scam? Off-topic
Altera's documentation for Hardcopy suggests powersavings, die space (cost) savi…
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n/a | rph | November 26, 2011, 04:24:23 PM |
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1GH/s, 20w, $500 — Butterflylabs, is it a scam? Off-topic
If this is based on something like a 40nm hardcopy III, performance and power fi…
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n/a | rph | November 26, 2011, 02:37:01 PM |
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1GH/s, 20w, $500 — Butterflylabs, is it a scam? Off-topic
Are you saying that sASIC like Altera Hardcopy is not used in this device ? What…
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n/a | rph | November 26, 2011, 02:21:01 PM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
What is that program you are running? Looks neat and cool!It's called mpbm and…
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n/a | rph | November 26, 2011, 02:14:57 PM |
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1GH/s, 20w, $500 — Butterflylabs, is it a scam? Off-topic
sASIC is not attractive for mining as it does not have the dedicated adder resou…
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n/a | rph | November 26, 2011, 01:45:31 PM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
we are eager to reproduce your configuration somehow.heh, the more the merrier!-…
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n/a | rph | November 25, 2011, 04:18:03 PM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
FPGA mining has come a long way since September. Arsbitcoin needs to fix their s…
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n/a | rph | November 25, 2011, 01:53:29 PM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
have you decided to sell these yet?If you're interested in a 10GH/s+ cluster - t…
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n/a | rph | November 16, 2011, 01:14:09 AM |
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FPGA development board "Icarus " for mining purpose - pre order information Hardware
why not i go to registration a new ID and start a new project like this ? Unf…
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n/a | rph | November 16, 2011, 01:34:44 AM |
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FPGA development board "Icarus " for mining purpose - pre order information Hardware
how to compete with scammers?Take the GH number they're promising and double it…
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n/a | rph | November 16, 2011, 12:56:25 AM |
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1GH/s, 20w, $500 — Butterflylabs, is it a scam? Off-topic
4-8 weeks probably means 8+ weeks. If they meant 4 weeks, they would have said 2…
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n/a | rph | November 15, 2011, 12:26:17 AM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
but be careful, when you run @ 190 Mhz, the chip will easily to get over heat, a…
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n/a | rph | November 15, 2011, 12:08:18 AM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
smartXplorer Indeed. But that only removes the last 20-30k of the timing score…
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n/a | rph | November 14, 2011, 11:38:45 PM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
After some quality time with the Xilinx build tools, I'm up to 192MH/s in -3.I t…
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n/a | rph | November 14, 2011, 11:34:50 PM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
A couple people asked about the PCB vendors I've been using -here are the two ma…
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n/a | rph | November 14, 2011, 11:07:32 PM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
I say this because I love to participate in the development of an FPGA cluster b…
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n/a | rph | November 11, 2011, 12:14:00 AM |
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Complete list of Built/Tested/Shipping ASIC/FPGA Miner Products Mining
Good idea. Your link appears to be broken though.Whoops! Fixed.-rph
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n/a | rph | November 12, 2011, 11:26:13 PM |
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1GH/s, 20w, $500 — Butterflylabs, is it a scam? Off-topic
However this guy does not have a good balance of public relation skills.On the c…
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n/a | rph | November 12, 2011, 11:11:05 PM |
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1GH/s, 20w, $500 — Butterflylabs, is it a scam? Off-topic
2) They filled some very expensive FPGA device with a sea of thos ultra-compact…
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n/a | rph | November 12, 2011, 11:07:06 PM |
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FPGA ghetto mining / hunting for fpgas on ebay Mining
do you have some instructions on how to build a reflow out of an oven?Toaster ov…
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n/a | rph | November 10, 2011, 01:56:39 AM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
Also, is that 1, or 4 FPGAs?kicad, and 4 sockets for the FPGA modules.-rph
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n/a | rph | November 10, 2011, 02:16:03 AM |
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Minimalist Spartan6-LX150 board Mining
PCI-e is just a pain in the ass for mining. You need gold finger controlled impe…
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n/a | rph | November 10, 2011, 01:15:14 AM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
Sneak peak at the next carrier..-rph
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n/a | rph | November 10, 2011, 01:43:46 AM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
Why not release the circuit diagram?IMO open source hardware (of this complexity…
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n/a | rph | November 10, 2011, 01:39:52 AM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
It occurred to me that with this daughter-board design you could bolt a large nu…
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n/a | rph | November 05, 2011, 08:44:46 PM |
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BTCMiner - Open Source Bitcoin Miner for ZTEX FPGA Boards Mining software (miners)
Stupid question: doesn't this double the number of registers you need?[Following…
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n/a | rph | November 05, 2011, 08:12:16 PM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
Nice, I've had similiar plans. But I wanted to place goldpins (2 rows) only on…
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n/a | rph | November 02, 2011, 11:57:59 PM |
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Spartan6-LX150 board for $250 -- gauging interest for mid-Oct ship date Mining
Haha, very true! Catfish, the truth is that all of the FPGA mining products you…
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n/a | rph | November 04, 2011, 03:39:22 AM |
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Spartan6-LX150 board for $250 -- gauging interest for mid-Oct ship date Mining
You know FPGA mining is becoming legit, when 2-3 vendors are trying to snipe cus…
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n/a | rph | November 03, 2011, 10:13:57 PM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
Still just 175?It's more than $175 per FPGA in qty 1. But significantly lower if…
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n/a | rph | November 02, 2011, 11:53:48 PM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
Updated the pics, since people were making fun of the tangled-wire prototype It…
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n/a | rph | October 31, 2011, 11:53:51 PM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
Any plans in the future to make larger board that have multiple FPGA sockets?Yes…
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n/a | rph | November 01, 2011, 12:08:45 AM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
I'm also in Socal. GPU mining hasn't been profitable here for many months, so I…
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n/a | rph | October 31, 2011, 10:58:46 PM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
Without releasing too many details - my FPGA cluster will pay for itself in unde…
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n/a | rph | October 31, 2011, 10:45:28 PM |
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FPGA Chip Plot Thread Hardware
ztex reached 200MHz on -3 with ISE 13.2 - it builds in about 40 minutes total (m…
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n/a | rph | October 30, 2011, 12:02:21 AM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
Did you hear from that vendor I gave you, rph?Not yet.. been busy coordinating t…
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n/a | rph | October 29, 2011, 11:58:48 PM |
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FPGA Chip Plot Thread Hardware
Heh, it was a matter of time until somebody hand-placed it. Hardcore.-rph
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n/a | rph | October 28, 2011, 01:14:09 AM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
Just wondering, what OS, programs, and other stuff are you running. Let's say I…
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n/a | rph | October 28, 2011, 04:33:54 AM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
limit of 127 on a pc per usb?I'm working on a high-density carrier that controls…
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n/a | rph | October 28, 2011, 04:50:13 AM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
Got the first batch of production PCBs. Still working on the FPGAs...With the re…
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n/a | rph | October 28, 2011, 12:11:40 AM |
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ZTEX USB-FPGA Module 1.15x: 190 MH/s FPGA Board now on stock Hardware
If you search for an assembler and build an 50 GH/s rig, the price is about $1.0…
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n/a | rph | October 28, 2011, 12:45:50 AM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
I've looked at the LX150 on exilinx.com at it seems that the processor alone cos…
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n/a | rph | October 27, 2011, 11:56:21 PM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
What software did you use to generate that? Doesn't look like fpga_editor...Pla…
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n/a | rph | October 25, 2011, 04:23:36 AM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
While I'm waiting on PCBs and parts.. here's some eye candy from the VHDL design…
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n/a | rph | October 25, 2011, 02:14:33 AM |
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1GH/s, 20w, $500 — Butterflylabs, is it a scam? Off-topic
If it's not a scam - Altera Hardcopy seems like the most reasonable explanation.…
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n/a | rph | October 25, 2011, 01:10:56 AM |
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1GH/s, 20w, $500 — Butterflylabs, is it a scam? Off-topic
It's a paper launch at this point so even if you fly there - he's openly admitte…
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n/a | rph | October 23, 2011, 03:34:02 PM |
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1GH/s, 20w, $500 — Butterflylabs, is it a scam? Off-topic
Agreed. Scam unless/until multiple reputable developers confirm it.There's only…
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n/a | rph | October 20, 2011, 11:52:54 PM |
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Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH Hardware
I guess at some point we'll find out how many people really, truly are getting "…
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n/a | rph | October 20, 2011, 12:36:58 AM |
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