What's the best hardware for mining ethers?
For the highest hashrate per GPU, the answer is the AMD HD 7990 (minimum hashrate 43 MH/s), followed by the AMD R9 Fury X (minimum hashrate 28 MH/s).
The HD 7990 was released in 2013 and is harder to purchase from stores as this series has been superseded by the R9 series released in 2015. Internally, the HD ...
This sounds like a riser issue. Try rotating risers or trying different riser cables. It may fix the issue. Because this is a cross-OS persistent issue, it screams hardware or bios. I'd try updating the bios too, or even reflashing to the current or previous version (be careful, this can introduce incompatibility to some CPUs!)
Hope you find the root cause ...
These are all user-submitted values and also non-Ethash-based algorithms. For the most part, the users submitting 100 MH/s+ hash rates have indicated these are for multi-GPU systems. For example, someone has submitted this:
ASUS 2х7990 1000 1500 win 8.1 pro 16.1 Ethereum 95Mh/s
The HD 7990 is, itself, two GPUs rolled into one. And this user ...
Cryptocompare informations looks strange for this card, I don't saw reports of such a hashrate with a R9 380x.
I've got an Asus one, overclocked to the limit at a very cool temp (46°C) and I barely have 20 or 21MH/s. I also run Ubuntu 14.04 and all is up to date. Also Cryptocompare data are odd for power consumption as I don't really know what unit the use ...
for the cpu mining i suggest you to read this post :
Is CPU mining even worth the Ether?
however before you buy a gpu to mine ethers consider to get an estimation about the Profitability , there is a lot of tool to do so i suggest you to try : https://badmofo.github.io/ethereum-mining-calculator/ or https://etherscan.io/ether-mining-calculator
also you ...
I found a website, where apparently somebody runs a full node and grabs a screen cap of the chaindata folder size every so often.
It does not appear to be dynamic, but it is the most recent thing I could dig up. It is 210 GB as of 04-November 2017.
the URL is ethereumchainsize·com
The question is old, but I guess it deserves a general answer. For such problems, there are mainly two possibilities:
either you don't have enough RAM
or you don't have enough computation power
(which you can increase through more CPUs)
To decide between those two issues, you can look at the CPU and memory use,
but in some cases (like yours) it is not ...
I have tried to run on a Raspberry Pi 3 with some 500MB free memory, but I got Failed to generate mapped ethash dataset epoch=0 err="cannot allocate memory" when trying to start mining a private
To mine ETH, you need enough RAM to build the DAG. Here is a link to more about the DAG.
The DAG size changes by epoch, and increases. As the above link shows, ...
Add a swap file to your machine digitalocean.com/community/tutorials/…
I have added a 2 GB swap file to my Raspberry Pi 3. However, I still encounter OOM errors when I try to mine and the etash dataset is created. I have 927 MB of RAM and now another 3.1 GB of SWAP. Does anyone know what the problem there might be?
ERROR[05-12|20:51:40.300] Failed to ...
My machine, intel X38 , Q9650, 8GM ram, clocked at 3Ghz, 3Gbps SATA port running samsung 540GB SSD, can slowly catch up in sync in full node mode.
The hard drive is mostly over 50% occupied, and CPU is also over 50% occupied when sync old blocks
This made it too slow to catch up if you are 1 month behind, then you have to delete the whole chain data and ...
If this is all done on the public Ethereum blockchain, then you don't need to worry about a server. People can transfer your ERC20 tokens without you running anything at all (after you deploy the contract, at least).
Trusted hardware works by having hardware that is physically difficult to examine or tamper with without destroying it, able to provide an attestation that they are running a particular program, signed by a key that is in turn signed by the hardware manufacturer.
It requires trust in the hardware manufacturer that there hardware really works as advertised ...
As @BadrBellaj said currently only the miner will get a reward for mining a block. There is no separate reward for executing a smart contract.
But you can run a pool service and charge a fee to the miners. You must have a pretty good connections and be able to quickly handle lots of connections, to other Ethereum nodes and your miners. For example Open ...
There are people selling their own builds on ebay.
Nearly all these builds use a "pro btc motherboard" with pci1x to pci16x raisers. But I would NOT recommend buying any of these because they are way ...
Some propose a hardware wallet: https://www.ledgerwallet.com/products/12-ledger-nano-s
Also you won't find anything today about mining except graphic card used to GPU mine. No Asics are available as they would cost more than just a bunch of AMD cards. You can find ready to use rigs, but it will still use GPU cards.
There is also no publicly available ...
Yes here is more gpu listed with 100+ hashrate. also you can search more gpu with hash rate their configuration such as Core clock, Memory Clock, Power consumption,Driver Version,Operating System for specific algorithm.
The minimum card is is 2 GB at the moment. From What is the current DAG size? When do we expect to hit GPU limits?, this limit may be exceeded around mid-Dec 2016, a little more than 1 month away.
Combining cards with lower RAM sizes does not work. Each card will need to have at least the minimum RAM size.
The RAM size does not make as much difference to ...
I say, its too much for the beggining. 2k dollars here in BRA will cost at least 6600 $BRL, that means at least 7 and a half minimum salary.
I've done now, with 2 kits, they are:
2x AMD APU AM1 Athlon 5350
2x Corsair CX500
2x Asus AM1AM-BR Am1 MOBO
2x 2gb DDR3 1333mhz Kingston
2x 320gb SATA2 Western Digital
4x R7 370 4gb Powercolor
Case made of ...