Mining software - Bitcoin Wiki

[WTB] x6500 FPGAs

Let me know what you got looking for a few
submitted by lepenguin to BitMarket [link] [comments]

Frequently Asked Question: What's an ASIC, FPGA?

So you're sick of just mining on your GPU, and not a fan of the electric bill after a month of mining? There has to be a better option out there than your loud GPU in your gaming computer. There is!
Shortly after GPUs became popular for bitcoin mining, enterprising folks started looking at other things they can re-purpose to mine bitcoins more efficiently. Around mid-year 2011, the first devices sprang up that are called FPGAs or Field Programmable Gate Arrays. These are nothing new to the hobbyist community, they've been around for a while for crackers and other security-conscious folks looking at ways to defeat cryptographic locks. Hey! I know something that uses cryptographic calculations to secure its network! BITCOINS! Yep, so some miners developed their own boards and slapped some FPGA chips on them (most commonly the Spartan-6), and wrote specific firmware and "bitstreams" to more efficiently calculate bitcoin hashes. The first generations were sort of slow, but still they had better efficiency than a GPU. Some of the latest generation included the Icarus boards, Cairnsmore, x6500, and ModMiner Quad.
In early 2012(i think my timeline is right), Butterfly Labs(BFL) was selling their own FPGA miner that hashed at 800 Mhash/s using 80 watts and only cost US$600 amazing! These grew very popular, but people could see that FPGAs still weren't the most efficient way to hash their shares. BFL then announced that they would be designing their own chips that would be orders of magnitude faster than anything ever seen. These would be the ASICs (or Application Specific Integrated Circuit)everyone is raving about. ASICs are--as the name implies--specifically designed for one thing, and one thing only. Bitcoins. This is all it can do, and can't really be repurposed like an FPGA to other applications. Who wouldn't want a US$150 "Jalapeno" that hashes at 3.5 GIGAhashes/s using only power from a USB port?? Crazy! So summer 2012, BFL says they will ship before Christmas. Various things happen and we now still don't have any confirmed ship dates from BFL.
A few other companies have sprouted up, ASICminer which I believe is developing their own chips to mine themselves, but in a responsible way as to not threaten the network with a sudden influx of hashing. bASIC was a fiasco that was developed by the creator of the ModMiner Quad(which is actually a fantastic miner, I own one, and love it.) where he took many preorders, promised lots of people amazing ASIC performance, but in early 2013 the stress of the whole endeavour got to him and he gave up, refunded money(I think it's still being refunded now, or maybe it's been cleared up already.)
Avalon is the only company we know has ASIC mining hardware in the wild. It is not certain exactly how many are out there, but they have been confirmed by independent sources. The Avalon units are expensive(75 BTC) and have been in limited production runs (or batches) of a few hundred units that were pre-sold out very quickly.
All of this info is gleaned from the Custom Hardware forum over at bitcointalk.org over the past year or so I've been involved in bitcoin. I may have some facts wrong, but this is the gist of the situation and hopefully gives you an insight on the state of the hardware war against bitcoin
Thanks for reading!
submitted by purelithium to BitcoinMining [link] [comments]

Submitted this to /r/BitcoinMining and despite messaging the mod, it was never Approved. Asking here: With cheap electricity and rising BTC to USD values, are FPGAs still worth it?

Since the original was posted 8 days ago, the prices are way outta date.
I saw a sale of an FPGA on bitmit:
https://www.bitmit.net/en/item/19307-x6500-bitcoin-miners-working-100-400mh-s-for-less-than-20w#
I'm ignoring the one on eBay at the moment (it's ending in 3 hours anyway).
Basically, if your electricity ranged from 0.06-0.09/kwh (and got cheaper the more you used), would an x6500 be worth it at ~$229USD? Or is 400MH/s so low that you won't hit anything?
Side question: if you don't join a pool, are you still guaranteed to eventually mine a block, or will your chances go down so much that you'd just be burning electricity? Is it better to get a quad or so and make your own "pool" that way, or do they all work together to form one super-unit?
(I assume buying sooner is better as the value of BTC goes up, so will the difficulty)
submitted by Miner_Throwaway to mtred [link] [comments]

With cheap electricity and rising BTC to USD values, are FPGAs still worth it?

I saw a sale of an FPGA on bitmit:
https://www.bitmit.net/en/item/19307-x6500-bitcoin-miners-working-100-400mh-s-for-less-than-20w#
I'm ignoring the one on eBay at the moment (it's ending in 3 hours anyway).
Basically, if your electricity ranged from 0.06-0.09/kwh (and got cheaper the more you used), would an x6500 be worth it at ~$229USD? Or is 400MH/s so low that you won't hit anything?
Side question: if you don't join a pool, are you still guaranteed to eventually mine a block, or will your chances go down so much that you'd just be burning electricity? Is it better to get a quad or so and make your own "pool" that way, or do they all work together to form one super-unit?
(I assume buying sooner is better as the value of BTC goes up, so will the difficulty)
submitted by Miner_Throwaway to BitcoinMining [link] [comments]

ECO FPGA Miner Butterfly Labs Bitforce Single Power Usage FPGA Mining ICO, Crypto Exchange, Bitcoin mining by TRESOR ... BitForce Jalapeno detlef hashenwerfer - YouTube

This is the first open source FPGA Bitcoin miner. It was released on May 20, 2011. Contents. 1 Software needed; 2 Compiling. 2.1 Altera; 2.2 Changing the clock speed; 3 Programming the FPGA. 3.1 Altera; 3.2 Using urjtag; 4 Mining. 4.1 Altera; 5 See Also; 6 External Links; 7 References; Software needed. Currently programming and running the FPGAminer code requires Quartus II for Altera devices ... The GPU is the chip that enables graphics cards (often called GPUs for brevity in mining circles) to perform millions of repetitive calculations at the same time so that games can be rendered in real time. They are also used to render special effects, or for machine learning and artificial intelligence. Whereas an ASIC is purpose made to mine a single algorithm, a GPU is capable of mining ... Wenn Sie mit einem ModMiner, X6500 oder ZTEX Mining betreiben achten Sie darauf, das sie Bitstreams downloaden müssen um sicher zu sein, das das Gerät mit BFG3 Miner arbeitet. BitMinter ist nicht die beliebteste Bitcoin Mining Software, da es eine Software ist, die man im Mining Pool registrieren muss und ein Anmeldeformular ausfüllen muss. Es ist allerdings eine gute Option für eine ... There are many different types of Bitcoin mining software available. These tables should help you find what will work best for your mining. information Info BFG BitMinter BTCMiner cgminer Diablo EasyMiner gMinor GroupFabric MPBM OSFPGABM Phoenix poclbm Ufasoft ScalaMiner language : C : Scala : Java : C : Java : Python : C++ : Python : Tcl : Twisted : Python : C++ : Scala license : GPL-3 : All ... FPGA Mining Hardware. Home; Products; Documentation; News; Gallery; Contact; Buy; X6500 Rev 3; X6500 Rev 2; X6500 Rev 3. The latest and greatest X6500 is the 3rd revision. Like revision 2, rev. 3 consists of 2 Spartan-6 LX150-3FGG484C FPGAs and a USB interface. A few important features have been added, including: Independent temperature monitoring for each FPGA. Heatsink mounting holes ...

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ECO FPGA Miner

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