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21 votes

How does AsicBoost work?

Introduction AsicBoost speeds up Bitcoin mining in general (for ASICs and CPUs alike) by reducing the frequency of computing one part of the SHA-256 calculation. A Bitcoin block header is 80 bytes ...
Nayuki's user avatar
  • 882
16 votes
Accepted

Why do leading ASICs manufacturers sell their chips?

I think the simple answer is that a company doesn't have to be a "Bitcoin believer" in order to manufacture Bitcoin mining hardware. The companies that produce ASIC chips also produce other products ...
Jestin's user avatar
  • 8,812
9 votes
Accepted

How does Segwit prevent ASICBOOST?

There's 2 versions of ASICBOOST: Overt where miners use bits in the version number as extra nonce space Covert where miners "mine" merkle trees with 4 bytes collisions The overt version is very ...
alcio's user avatar
  • 1,274
7 votes

How does AsicBoost work?

I'm reproducing figures 2 and 3 from the paper below to provide an alternative interpretation. Fig 2: Fig 3: Historically, mining is composed of an inner loop (red) and an outer loop (green). Each ...
Ponkadoodle's user avatar
6 votes
Accepted

How long does it take to perform a single SHA256?

Simply head over to https://en.bitcoin.it/wiki/Non-specialized_hardware_comparison#CPUs.2FAPUs and look it up. For AMD, the columns nprocs and Mhash/s are important. Divide the latter by the former, ...
UTF-8's user avatar
  • 3,224
6 votes

How is mining profitable if a $10.000 ASIC will generate like $63.23 per month?

That particular miner is way overpriced. Nobody should buy it at that price. The seller either listed an incorrect price, or is very confused about the current market for mining hardware, or is ...
Nate Eldredge's user avatar
6 votes

How to select minimum difficulty when mining with Slush Pool

From the research I have done to understand the minimum difficulty it boils down to a balance between server/client bandwidth limitations and time to put at risk. The pool which you connect to ...
Pau Coma Ramirez's user avatar
5 votes
Accepted

What can be done with old (unprofitable) ASICs?

If your electricity costs are high, unprofitable for you may mean profitable for someone else. Some miners may still use unprofitable ASICs either to support the network (at a smaller loss than with ...
Luke Benton's user avatar
5 votes

Why are there different mining hardware for different hashing algorithms?

The hardware you are referring to are called Application Specific Integrated Circuits (ASICs), and they are named that for a reason. It's because they are not general purpose computers like desktops, ...
Jestin's user avatar
  • 8,812
4 votes

Why do leading ASICs manufacturers sell their chips?

Some companies have done exactly that, and have come under fire for it. Butterfly Labs was famously outed by US authorities for running customer-purchased hardware to generate profit for themselves, ...
brandondoge's user avatar
4 votes

What is ASIC hardware good for besides mining?

ASIC stands for Application Specific Integrated Circuit. This is hardware that is specifically designed for one use case. Bitcoin mining ASICs are good at one thing: Bitcoin mining. If they were ...
Pieter Wuille's user avatar
4 votes

Why is SHA3 less conducive to ASIC?

I'm not an expert but I'm a good at digging through academic literature, and this is what I found about SHA3 with relevance to FPGAs and ASICS (and in comparison with SHA2). Note that this paper ...
Penquin's user avatar
  • 671
4 votes

Using ASIC for password cracking - mad concept?

It will not help even if passwords were hashed with DSHA256. This link explains why. https://rya.nc/asic-cracking.html Basically the ASIC loads the header into its memory and increments the nonce ...
SentinalBais's user avatar
4 votes

In the ASIC-age, is it worth starting mining Bitcoin at home?

Bitcoin, as the answers imply, is long out of the reach of home miners, however other coins can use all your hardware, e.g. Gridcoin (GRC). Gridcoin rewards work done on the BOINC platform which is a ...
Scalextrix's user avatar
3 votes

why not make DIY, upgradeable, ASIC mining rigs?

So, why not just sell the parts for making ASIC rigs, and let mining enthusiasts build their own? ASICs are highly specialized hardware, advancements in ASIC technology involve new hardware ...
chytrik's user avatar
  • 18.1k
3 votes
Accepted

What is the differenct between 13.5TH and 14TH

I don't have any specific knowledge about this product, but I would guess this is an example of binning. They're not really different, it's just a matter of how fast those particular units are able ...
Nate Eldredge's user avatar
3 votes
Accepted

ASIC Speed measurement

The usual interpretation of "hash rate" is the number of distinct block headers that can be tried per second. So this should include the time needed to: increment nonce value increment extraNonce or ...
Nate Eldredge's user avatar
3 votes
Accepted

How specific are ASIC's design? Can they single hash SHA256?

A Bitcoin mining ASIC: does not attempt to complete a single hash, rather fragments of two SHA256 compression rounds which is then compared to a target, the result is never returned can not accept ...
Claris's user avatar
  • 15.4k
3 votes

What pools will allow asic block erupters these days?

You're never going to see anything with these. Block erupters are simply... ancient. The ones I had did a few hundred megahahes - a reasonable ASIC you'd buy today does 10+ terahashes. 1 terahash = 1,...
Raghav Sood's user avatar
2 votes
Accepted

What is the difference between Gridseed ASIC and Scrypt ASIC

Gridseeds are small dual-mode miners offering SHA256 and Scrypt. Gridseeds have a very low scrypt hashrate (<400kH/s). The hashrate affects the share difficulty and therefore it's quite a good ...
q9f's user avatar
  • 1,444
2 votes

Is 2016 a good time to buy an ASIC miner?

It depends on the electricity cost, the block-reward, the exchange rate, the difficulty, and the quality "Q" of the machine (number of hashes per joule). One interesting event that will occur in 2016 ...
hft's user avatar
  • 288
2 votes

Is 2016 a good time to buy an ASIC miner?

Although the miner you're considering is a great entry level unit, 2016 will bring in the "halving" of the reward on bitcoins mined. This means, once a solution is found, the reward will be half the ...
Colin Elliott's user avatar
2 votes
Accepted

Butterfly Labs ASIC for rendering in 3dsmax

Unfortunately, this is one of the problems with Bitcoin mining hardware, it cannot be repurposed to do anything else. It's not like a GPU where you can just use it to render graphics in a game. ...
morsecoder's user avatar
  • 14.1k
2 votes

Using ASIC for password cracking - mad concept?

So, these answers are all great. They are all missing one giant point. ASICs are not ONLY for bitcoin miners, though the OP i believe was referring to mining ASICs. But an ASIC (or Application ...
Katerina's user avatar
2 votes

Why is SHA3 less conducive to ASIC?

Your premise is flawed. I think being good for ASIC was one of the reasons why Keccak won: it was both the fastest and had the best performance/area ratio among the finalists for ASIC reference ...
Tiana's user avatar
  • 121
2 votes

How to select minimum difficulty when mining with Slush Pool

That's just the minimum that the pool will assign that worker, not the difficulty that it's actually working on. You can find that in your miner status page, under "DiffA#" which shows the difficulty ...
Zenith's user avatar
  • 21
2 votes
Accepted

Powering the Butterfly Labs BFG0005G ASIC Miner

If it's the 5GHs in this picture: https://i.pinimg.com/originals/30/5e/a0/305ea076f1dac979e04f44cb4de04ed5.jpg Then the power adapter looks like 12V @ 7.5A. You might even find one on ebay (check ...
Daniel Worthington-Bodart's user avatar
2 votes

Is bitcoin-gold more ASIC-resistant than Litecoin?

This appears to be old but to correct the above answer, Bitcoin Gold used to use the Equihash algorithm but recently forked to the Equihash-BTG proof of work algorithm in order to keep in line with ...
romulox's user avatar
  • 21
2 votes
Accepted

Why is my Antminer S9 only using one Chain

Also posting as an answer: the issue is that the GH/S (RT) on board 6 and 7 is 0--it is because the power quality coming into that dedicated power supply is too low. The board has an ideal ...
Selly's user avatar
  • 131
2 votes
Accepted

Does asic API exists?

Most Antminers have a WebSocket API that connects to the built in CGMiner software on port 4028. You can test this in a command prompt in Windows, Mac, or Linux with (nc is a program called netcat ...
Mason Ticehurst's user avatar

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