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!
SELLING FPGA BITCOIN MINERS - MODMINER QUAD (Have a few left)
SELLING FPGA BITCOIN MINERS - MODMINER QUAD https://post.craigslist.org/imagepreview/m/3K43Me3J65L55E95Mcd41a17771ccf5591e55.jpghttps://post.craigslist.org/imagepreview/m/3Eb3Fb3Lc5I25G95Fbd41ec1e412c6c5b1b05.jpg The ModMiner Quad is a highly efficient FPGA Based Bitcoin Mining Device. Price - 2 BTC each (Lowered Price) - Only accepting Bitcoins! I'm selling some FPGA Bitcoin miners due to me making room for my ASIC coming in, so I can work out the prices on these. It features up to 4 Spartan-6 LX150 FPGA Chips that are Capable of doing up to 210Mhash each at 10 watts For a total Unit Speed & Efficiency of 800+mhash @ only 40 watts Compatible with the popular BFGMiner and CGMiner Bitcoin Mining Software Also many other people have found other uses for this great device, it will easily load any Bitstream / firmware you load onto it and be used for a plethora of other applications including protein folding , DNA mapping and pretty much any distributed computer project / algorithmic application or any other thing you can through at it. A truly multi purpose Spart-6 LX150 Device, this baby is idea for all kinds of distributed computer applications, hobbyist password cracking and many other applications If you would like a powerful long lasting and multi-purpose FPGA calculation device the Modminer Quad is for you! Contents: 1x Backplane 4x Spartan 6 LX150 FPGA cards with heatsinks + fans 1x USB miniUSB cable Features: 4x Spartan 6's 800+mhash @ ~ 40 watts USB interface for configuration and communication 72MHz ARM Cortex M3 for USB interface Our own custom Firmware Super easy firmware updating for the ARM chip Temp sensor on each FPGA card Heatsink w/ cooling fan on every card 4x 3-pin headers to power standard fans Draws from the 12V supply with 5A fuse at the Molex connector LEDs to indicate that the FPGAs are configured properly Modular design for seamless FPGA upgrades and repair Price - 2 BTC each (Lowered Price) Click here to order - https://payment.mtgox.com/4f4a7094-24e4-4cd6-947a-4ad6ad3ad856 My Cragislist Ad - https://post.craigslist.org/manage/3715775953
Has anyone thought about using FPGAs to mine litecoins? In particular, I was thinking about Xilinx Vertex FPGAs, which have large amount of block RAM, which might be useful for the litecoin RAM-intensive hashing algorithm. However, they don't have enough block RAM to saturate the logic with hash units, so you'd still need a board with off-chip RAM, although not much. On the downside, they are much more expensive than the Spartan FPGAs most FPGA Bitcoin miners seem to be using.
Field programmable gate array (FPGA) is an integrated circuit designed to be configured by the customer or designer after manufacturing—hence "field-programmable".FPGAs are integrated circuits that can be tailored to suit a particular task like mining bitcoins, after their manufacturing thus creating ASIC. 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, compatible with many heatsinks designed for the Northbridge chipset. Additional clearance to allow for larger heatsinks. 3-pin headers to power 2 standard 12V fans. Draws from ... 2. Build the design and program the FPGA. At the moment, the source is treated as the single fpgaminer_top file, using includes. Here are some ways I have used succesfully, you can of course use Xilinx ISE or something else: 2a. boldport: $ make -f scripts/Makefile TOP_PATH=`pwd` bit This builds a bit file for a Spartan 3E 500K. There’s no need to buy a long-term contract, either – Bitcoin mining difficulty is soaring day by day. 15y Clone - Bitcoin Vcash Decred FPGA Miner - Spartan 6: $285. Since Bitcoin is a decentralized ledger with many different entities taking part in protecting and verifying the network, it is important that all verifiers. But how to manage workers efficiently, set up. Fitbit lawsuit. Used ... FPGA is a hardware circuit that a user can program to carry out one or more logical operations. Taken a step further, FPGAs are integrated circuits, or ICs, which are sets of circuits on a... Read More "INTRODUCTION TO FPGA" Read More . WHAT IS ‘PROOF OF WORK’ Cryptocurrencies use distributed ledgers-blockchains to record transaction data, a critical process for the whole system to work is ...
I picked up a few PCI FPGA Cards on eBay for 99p which, apparently, can mine BitCoins at a speed of 21 Ghash/s (once they're correctly configured!) ELE 432- FPGA Bitcoin Miner - Duration: 4:08. Burak 14,597 views. 4:08. Tiny YOLO v1 on FPGA inference comparisons (NVDLA small configuration) - Duration: 3:45. Nichox Luo 610 views. 3:45 ... My first attempt at mining 0xBitcoin with the Zilinx VCU1525 FPGA. It's running about 72.5 F at about ~8Gh. This is with the stock cooling fan, and the 8.8Gh... Bitmain Technologies Bitcoin Mining: Powered by Xilinx - Duration: 3 ... EDGE Spartan 6 FPGA Development board - Duration: 1:49. All About FPGA 4,346 views. 1:49. How to Land the Space Shuttle ... I picked up a few PCI FPGA Cards on eBay for 99p which, apparently, can mine BitCoins at a speed of 21 Ghash/s (once they're correctly configured!)