Questions tagged [fpga]
"Field Programmable Gate Array" - A digital integrated circuit designed to be configured after manufacture. Essentially allows one chip to be turned into a different chip. FPGAs are a highly power efficient method of mining Bitcoins, though they have a significantly higher initial cost than many alternatives.
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I plan to buy any FPGA boards, any idea for a good sources of information? and what coin is profitable? [closed]
Do you guys know any good source for newbie FPGA miners?
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Repurposing old FPGAs
So, I have a couple of BTC mining FPGAs lying around from the earlier days when they were worth running (specifically a BPMC Red Fury and an ASICMiner Block Erupter). I'm wondering if these can be ...
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How to begin FPGA mining
Since I own two FPGA:s I want to get started mining. It doesn't matter which currency I am mining, only that it works. I would prefer to do mining of Bitcoin, Ether, Dash or LItecoin but anything that ...
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FPGA mining setup with Altera DE2-115
I have an Altera DE2-115 FPGA and I want to try mining. I found this project
https://github.com/progranism/Open-Source-FPGA-Bitcoin-Miner/tree/master/src
but when I try to start it, it says
ERROR: ...
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Current FPGA Competitiveness
I know CPUs and GPUs can't really compete with ASICs anymore but what about FPGAs? Are they still reasonable? Anyone have a ballpark idea of what kind of Gh/s (or Mh/s) has been done with something ...
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ASIC and FPGA feasibility as GPU
I've done a minor amount of research into the topic of bitcoin mining using ASICs and FPGAs, and I've started wondering:
Could these be used as GPUs (possibly specialized to a subset of what modern ...
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Can an FPGA for mining be used to crack deterministic keys?
Deterministic keys are based on the sha256 hashing function. As described in the link below deterministic keys use the same hashing function.
https://en.bitcoin.it/wiki/Deterministic_wallet
Is it ...
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Simulate an FPGA/ASIC on RAM for mining?
Just out of curiosity, would it be possible to use a lot of RAM and treat it as an FPGA capable of mining other cryptocurrencies, or would it be too expensive to implement and not worth it?
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Why is a GPU a better tool for bitcoin mining than a CPU and is an FPGA better than both?
I was looking into the best tools for bitcoin mining and found out that GPUs are a better tool for bitcoin mining than CPU's. What is the reason for this?
furthermore, I found dedicated chips that ...
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Can ASIC or FPGA boards be used to mine Litecoin?
I know that Litecoin was designed to be mined with a CPU but then someone figured out how to mine it with a GPU.
Has anyone figure out how to mine Litecoin with an ASIC or FPGA boards, and if not is ...
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work source hash rate smaller than worker hash rate
Why would my Work Source hash rate be smaller than my worker output hashing rate? I'm using MBPM and my work sources Hashrate is always lower than my X6500Hotplug Hashrate. I'm just looking for a ...
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Bitcoin mining algorithm
I was looking at some sample mining algorithms and also some sample code and there was something which I didnt really understand. In Simple bitcoin mining algorithm he says ,
The simplest miner would ...
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How to get started with building an fpga mining device
I plan to make an fpga mining device for bitcoin mining just for the fun of it. I thought understanding bitcoin as whole would be the first step to take. However I realize that understanding the ...
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FPGA/ASIC with general SHA-1 and SHA-2 capabilities
With the introduction of ASICs and FPGAs, I am looking to upgrade my rig. However, I use the rig for academic research involving brute-force SHA-1 and SHA-2 cracking (I am working on make passwords ...
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International shipping times for Butterfly Labs ASIC hardware [closed]
The Butterfly Labs FAQ says they use USPS for shipping (except for Mini Rigs), and displays the options "Standard" and "Express" during the checkout process:
However, the USPS website appears to ...
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Mining: GetWork, Get Nonce, ???, Submit Hash?
I make a getwork request and get back data, hash1, midstate, and target. Mining on a KC705 development FPGA board, and following the readme.md file here:
https://github.com/progranism/Open-Source-FPGA-...
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how to start mining with FPGA
I found that in my university there are some FPGA's available to test and to play with. I am a software/web programmer and I have never been working with verilog or whatever is used to program FPGA.
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Shares mostly rejected mining with an FPGA
I am using an FPGA to mine bitcoins in a pool, as you can see below I am not really very successful:
[1 accepted, 48 failed, 148.90 +/- 21.27 Mhash/s]
It is running at 150 MhZ but I only have 1 ...
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BFL Single averages 800 Mhps on BitMinter Client. Advertised rate is 832. What explains the difference?
I'm using a BFL single with the BitMinter client and I never see my Mhps exceed 825 and it often goes down to 780 Mhps.
What could be an explanation for this difference?
Are the specs on BFL ...
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When will FPGAs and ASICs 'replace' GPUs for mining?
Please explain in detail, or provide an an estimate, at least.
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What other purposes can I use my [obsolete] hashing hardware for?
It's pretty easy to reuse CPUs or Video cards that were previously used for Bitcoin hashing, but what can I do with FPGA hardware when the difficulty becomes too high for it to be worthwhile to mine?
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How is a Butterfly Labs Bitforce Single powered?
Its website says it uses 80W of power, so that's too much for a USB port. How does it receive it's power?
Can it run on a 240V power supply, or does it need 110V?
Note I'm not asking about the newer &...
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Is Butterfly Labs reputable / Should I preorder the SC Jalepeno? [closed]
I'm somewhat new to the mining scene but I'm a bit familiar with everything. I see that GPU mining will become much less cost effective over the next year or so, especially around December when the ...
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How many FPGA can be attached to one computer?
I am looking at this. Dual FPGA X6500 Mining Card Rev 3 (Without Heatsinks)
So we connect the card via USB and the card will mine?
Should I buy one FPGA or several ones? Where do I attach the FPGA? ...
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How do I mine with FPGAs?
I'm not entirely sure how FPGA's work...
Do I simply buy a ZTEX and it mines, or do I need to plug it into a computer via USB?
Can I chain them?
I'm so confused.
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Is there time-to-failure data available for any of the BFL products?
Butterfly Labs (BFL) is offering a few mining products which look to be based on some sort of FPGA or ASIC but I can't find any reliable data on what parts they're using or their manufacturing ...
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Why does the BFL Single produce ~50% stales with P2Pool?
I've heard from users on bitcointalk forums that the BFL single doesn't work with P2Pool as it produces about 50% rejected shares, which is insanely high.
Why is this?
Is it possible that the ...
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Running Miner as embedded system (No OS) - Can it be done?
I've been messing about with TCP/IP stacks on some fairly powerful MCU's lately (mostly the ARM M4 series), and this sort of led to the crazy idea, that I could somehow create an embedded platform ...
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What software/hardware is required to mine with an FPGA?
I have been looking for a device that would allow me to mine Bitcoins without too much noise and heat. Something relatively small that I could keep in a shelf without worrying too much about it.
A ...
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What's the difference between an ASIC and an FPGA? Which is better for mining?
I'm a software guy with only the most basic of hardware training/knowledge so while I understand the basic concepts of ASICs and FPGAs the details are beyond me. What are the primary differences and, ...
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