Welcome to SiaCoin (SC) Today, this is a Q&A dedicated to crypto currency miners and SiaCoin enthusiast.

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This version is POOL/SOLO for Ethereum, POOL for Decred, POOL/SOLO for Siacoin, POOL for Lbry.

For AMD cards, Catalyst (Crimson) 15.12 is required for best performance and compatibility. You can get very bad results for different drivers version, or miner can fail on startup. For nVidia cards, 368.81 driver is recommended for best performance and compatibility.

For AMD cards, set the following environment variables, especially if you have 2GB cards:


For multi-GPU systems, set Virtual Memory size in Windows at least 16 GB: "Computer Properties / Advanced System Settings / Performance / Advanced / Virtual Memory".

This miner is free-to-use, however, current developer fee is 1% for Ethereum-only mining mode (-mode 1) and 2% for dual mining mode (-mode 0), every hour the miner mines for 36 or 72 seconds for developer. Decred is mined without developer fee. If you don't agree with the dev fee - don't use this miner.

This version is for recent AMD videocards only: 7xxx, 2xx and 3xx, 2GB or more. Recent nVidia videocards are supported as well.

There are builds for Windows x64 and for Linux x64 (tested on Ubuntu 12.04). No 32-bit support.


  • Supports new "dual mining" mode: mining both Ethereum and Decred/Siacoin/Lbry at the same time, with no impact on Ethereum mining speed. Ethereum-only mining mode is supported as well.
  • Effective Ethereum mining speed is higher by 3-5% because of a completely different miner code - much less invalid and outdated shares, higher GPU load, optimized OpenCL code.
  • Supports both AMD and nVidia cards, even mixed.
  • No DAG files.
  • Supports all Stratum versions for Ethereum: can be used directly without any proxies with all pools that support eth-proxy, qtminer or miner-proxy.
  • Supports Ethereum and Siacoin solo mining.
  • Supports both HTTP and Stratum for Decred.
  • Supports both HTTP and Stratum for Siacoin. Note: not all Stratum versions are supported currently for Siacoin.
  • Supports Stratum for Lbry.
  • Supports failover.
  • Displays detailed mining information and hashrate for every card.
  • Supports remote monitoring and management.
  • Supports GPU selection, built-in GPU overclocking features and temperature management.
  • Supports Ethereum forks (Expanse, etc).
  • Windows and Linux versions.

Latest version is v9.5:

  • fixed issue with PASC, miner could check some nonces twice. Effective hashrate must be a bit higher now.
  • improved SIA support for Nicehash, added "mining.extranonce.subscribe" and "client.reconnect" commands support. Effective hashrate must be a bit higher now.
  • a few minor bug fixes and improvements.
  • EthMan: added ability to enable/disable GPUs remotely (see API.txt for tech details).
  • EthMan: added notification for too high fan speed.
  • EthMan: several minor bug fixes and improvements.

Windows 64bit


Linux 64 bit 

Github : 


asked Jun 15, 2017 in Claymore's Dual mining by sia.today (1,120 points)
retagged Jun 16, 2017 by sia.today | 2,729 views

2 Answers

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-epool Ethereum pool address. Only Stratum protocol is supported for pools. Miner supports all pools that are compatible with Dwarfpool proxy and accept Ethereum wallet address directly. For solo mining, specify "http://" before address, note that this mode is not intended for proxy or HTTP pools, also "-allpools 1" will be set automatically in this mode. Note: The miner supports all Stratum versions for Ethereum, HTTP mode is necessary for solo mining only. Using any proxies will reduce effective hashrate by at least 1%, so connect miner to Stratum pools directly. Using HTTP pools will reduce effective hashrate by at least 5%.

-ewal Your Ethereum wallet address. Also worker name and other options if pool supports it. Pools that require "Login.Worker" instead of wallet address are not supported directly currently, but you can use "-allpools 1" option to mine there.

-epsw Password for Ethereum pool, use "x" as password.

-eworker Worker name, it is required for some pools.

-esm Ethereum Stratum mode. 0 - eth-proxy mode (for example, dwarpool.com), 1 - qtminer mode (for example, ethpool.org), 2 - miner-proxy mode (for example, coinotron.com), 3 - nicehash mode. 0 is default.

-etha Ethereum algorithm mode for AMD cards. 0 - optimized for fast cards, 1 - optimized for slow cards, 2 - for gpu-pro Linux drivers. -1 - autodetect (default, automatically selects between 0 and 1). You can also set this option for every card individually, for example "-etha 0,1,0".

-ethi Ethereum intensity. Default value is 8, you can decrease this value if you don't want Windows to freeze or if you have problems with stability. The most low GPU load is "-ethi 0". Also "-ethi" now can set intensity for every card individually, for example "-ethi 1,8,6". You can also specify negative values, for example, "-ethi -8192", it exactly means "global work size" parameter which is used in official miner.

-eres this setting is related to Ethereum mining stability. Every next Ethereum epoch requires a bit more GPU memory, miner can crash during reallocating GPU buffer for new DAG. To avoid it, miner reserves a bit larger GPU buffer at startup, so it can process several epochs without buffer reallocation. This setting defines how many epochs miner must foresee when it reserves GPU buffer, i.e. how many epochs will be processed without buffer reallocation. Default value is 2.

-allpools Specify "-allpools 1" if miner does not want to mine on specified pool (because it cannot mine devfee on that pool), but you agree to use some default pools for devfee mining. Note that if devfee mining pools will stop, entire mining will be stopped too.

-allcoins Specify "-allcoins 1" to be able to mine Ethereum forks, in this mode miner will use some default pools for devfee Ethereum mining. Note that if devfee mining pools will stop, entire mining will be stopped too. Miner has to use two DAGs in this mode - one for Ethereum and one for Ethereum fork, it can cause crashes because DAGs have different sizes. Therefore for this mode it is recommended to specify current Ethereum epoch (or a bit larger value), for example, "-allcoins 47" means that miner will expect DAG size for epoch #47 and will allocate appropriate GPU buffer at starting, instead of reallocating bigger GPU buffer (may crash) when it starts devfee mining. Another option is to specify "-allcoins -1", in this mode miner will start devfee round immediately after start and therefore will get current epoch for Ethereum, after that it will be able to mine Ethereum fork. If you mine Expanse, the best way is to specify "-allcoins exp", in this mode devfee mining will be on Expanse too and DAG won't be recreated at all.

-etht Time period between Ethereum HTTP requests for new job in solo mode, in milliseconds. Default value is 200ms.

-erate send Ethereum hashrate to pool. Default value is "1", set "-erate 0" if you don't want to send hashrate.

-estale send Ethereum stale shares to pool, it can increase effective hashrate a bit. Default value is "1", set "-estale 0" if you don't want to send stale shares.

-dpool Decred/Siacoin/Lbry pool address. Use "http://" prefix for HTTP pools, "stratum+tcp://" for Stratum pools. If prefix is missed, Stratum is assumed. Decred: both Stratum and HTTP are supported. Siacoin: both Stratum and HTTP are supported, though note that not all Stratum versions are supported currently. Lbry: only Stratum is supported.

-dwal Your Decred/Siacoin/Lbry wallet address or worker name, it depends on pool.

-dpsw Password for Decred/Siacoin/Lbry pool.

-di GPU indexes, default is all available GPUs. For example, if you have four GPUs "-di 02" will enable only first and third GPUs (#0 and #2). Use "-di detect" value to detect correct GPU order for temperatures management (requires non-zero "-tt" option); note that it will not work properly if you do not want to assign all GPUs to miner. You can also turn on/off cards in runtime with "0"..."9" keys and check current statistics with "s" key.

-gser this setting can improve stability on multi-GPU systems if miner hangs during startup. It serializes GPUs initalization routines. Use "-gser 1" to serailize some of routines and "-gser 2" to serialize all routines. Default value is "0" (no serialization, fast initialization).

-mode Select mining mode: "-mode 0" (default) means dual Ethereum + Decred/Siacoin/Lbry mining mode. "-mode 1" means Ethereum-only mining mode. You can set this mode for every card individually, for example, "-mode 1-02" will set mode "1" for first and third GPUs (#0 and #2).

-dcoin select second coin to mine in dual mode. Possible options are "-dcoin dcr", "-dcoin sc", "-dcoin lbc". Default value is "dcr".

-dcri Decred/Siacoin/Lbry intensity. Default value is 30, you can adjust this value to get the best Decred/Siacoin/Lbry mining speed without reducing Ethereum mining speed. You can also specify values for every card, for example "-dcri 30,100,50". You can change the intensity in runtime with "+" and "-" keys and check current statistics with "s" key. For example, by default (-dcri 30) 390 card shows 29MH/s for Ethereum and 440MH/s for Decred. Setting -dcri 70 causes 24MH/s for Ethereum and 850MH/s for Decred.

-dcrt Time period between Decred/Siacoin HTTP requests for new job, in seconds. Default value is 5 seconds.

-ftime failover main pool switch time, in minutes, see "Failover" section below. Default value is 30 minutes, set zero if there is no main pool.

-wd watchdog option. Default value is "-wd 1", it enables watchdog, miner will be closed (or restarted, see "-r" option) if any thread is not responding for 1 minute or OpenCL call failed. Specify "-wd 0" to disable watchdog.

-r Restart miner mode. "-r 0" (default) - restart miner if something wrong with GPU. "-r -1" - disable automatic restarting. -r >20 - restart miner if something wrong with GPU or by timer. For example, "-r 60" - restart miner every hour or when some GPU failed. "-r 1" closes miner and execute "reboot.bat" file ("reboot.bash" or "reboot.sh" for Linux version) in the miner directory (if exists) if some GPU failed. So you can create "reboot.bat" file and perform some actions, for example, reboot system if you put this line there: "shutdown /r /t 5 /f".

-dbg debug log and messages. "-dbg 0" - (default) create log file but don't show debug messages. "-dbg 1" - create log file and show debug messages. "-dbg -1" - no log file and no debug messages.

-logfile debug log file name. After restart, miner will append new log data to the same file. If you want to clear old log data, file name must contain "noappend" string. If missed, default file name will be used.

-li low intensity mode. Reduces mining intensity, useful if your cards are overheated. Note that mining speed is reduced too. More value means less heat a

answered Jun 15, 2017 by sia.today (1,120 points)
0 votes

Connect to the SiaMining pool : 

EthDcrMiner64.exe -epool exp.suprnova.cc:3333 -ewal username.worker -epsw x -esm 3 -allpools 1 -dpool stratum+tcp://us-west.siamining.com:7777 -dwal YourSiacoinAddress.YourWorkerName -dcoin sia

More information : 


answered Jun 25, 2017 by sia.today (1,120 points)
36 questions
12 answers
1,217 users