PhoenixMiner 5.1c: Download fastest Ethash miner with Low DevFee (Win/Linux)


IMPORTANT! All owners of AMD cards with 4 GB RAM must upgrade to PhoenixMiner 5.0e or later version to continue mining after DAG epoch 350 (both ETH and ETC has already passed DAG epoch 350). Additionally, here are some important tips for longest possible usage of 4 GB AMD cards with PhoenixMiner 5.0e and later:


  • If your rig is using Intel CPU, use the integrated graphics as primary display adapter. To do this, go to motherboard’s BIOS setup and change the “Primary display adapter” to iGPU (or integrated GPU). Also, if you are using actual monitor or HDMI plug, put it in the motherboard video output.
  • If you can’t use integrated GPU, replace the primary GPU with one with 6 or 8 GB VRAM.
  • Do not upgrade to a new AMD driver unless it is explicitly supported by PhoenixMiner. With 4 GB AMD cards, this will not only lower your hashrate but it will make impossible to mine when the DAG epoch is above 350.
  • After the DAG epoch becomes more than 350, the optimal -gt value for the 4 GB AMD cards may change. So, we recommend to run auto-tune again after DAG epoch 350 to find the best GT values for the cards.

After extensive testing of AMD Windows drivers for the last two years or so, we identified two broad groups of drivers:

  • Good drivers. These are versions from to 19.7.5 (inclusive), and from 19.12.2 to 20.8.1 (inclusive). These will allow you to mine until DAG epoch 372-373 and won’t need restart of PhoenixMiner on each DAG epoch change.
  • Not so good drivers. These are versions 18.1.1 to 18.10.1 (inclusive), and from 19.8.1 to 19.12.1 (inclusive). This will allow you to mine until DAG epoch 365-366 and will require restart of PhoenixMiner on each DAG epoch change (for these drivers this will be preformed automatically unless you have added -dagrestart 0 command-line option to explicitly disable the auto-restart).
  • If you are using a pool with automatic switching between the coins (like nicehash for example), you should use one of the good drivers above, and shouldn’t use the -dagrestart option.
  • Drivers older than 18.1.1 were not tested for 4 GB DAG operation. Specifically, there are multiple reports that the old blockchain drivers from 2017 doesn’t work with 4 GB cards beyond epoch 350. If you are still using the blockchain drivers, you must upgrade to newer drivers if you have 4 GB AMD cards. After that, do not forget to turn on the Compute mode for all cards in AMD control center.

Under Linux all relatively recent drivers (i.e. last 24-36 months) allow mining until epoch 378-380 but there are much more driver bugs, so if you are happy with your current driver version, do not change it.
Changes in version 5.1c (since 5.0e):

  • Added support for VRAM timing adjustments for Nvidia cards of 10×0 series (see the new command-line parameters -straps, -vmt1, -vmt2, -vmt3, and -vmr for more information)
  • Added new parameter -nvmem to force using straps even on unsupported Nvidia GPUs (use -nvmem 1 for GDDR5 cards, or -nvmem 2 for GDDR5X cards)
  • Added -ttli option to automatically decrease the mining speed to avoid overheating the GPUs over the target temperature (useful when -tmax option is not supported by the drivers)
  • Added support for latest AMD drivers 20.8.1 under Windows and 20.20-1089974 under Linux
  • Fixed long-standing problems with -gpow option, which now works properly
  • Removed some dead ethash-based altcoins and updated the support for the rest of them
  • Many other small improvements and fixes

PhoenixMiner is fast (arguably the fastest) Ethash (ETH, ETC, Muiscoin, EXP, UBQ, etc.) miner that supports both AMD and Nvidia cards (including in mixed mining rigs). It runs under Windows x64 and Linux x64 and has a developer fee of 0.65% (the lowest in the industry). This means that every 90 minutes the miner will mine for us, its developers, for 35 seconds.

PhoenixMiner also supports Ubqhash for mining UBQ, ProgPOW for mining BCI, and dual mining Ethash/Ubqhash with Blake2s.

The speed is generally faster than Claymore’s Ethereum miner in eth only mode (we have measured about 0.4-1.3% speed improvement but your results may be slightly lower or higher depending on the GPUs). To achieve highest possible speed on AMD cards it may be needed to manually adjust the GPU tune factor (a number from 8 to about 400, which can be changed interactively with the + and – keys while the miner is running).

If you have used Claymore’s Dual Ethereum miner, you can switch to PhoenixMiner with minimal hassle as we support most of Claymore’s command-line options and confirguration files.

  • Please note that PhoenixMiner is extensively tested on many mining rigs but there still may be some bugs.
  • Additionally, we are actively working on bringing many new features in the future releases.
  • If you encounter any problems or have feature requests, please post them here (in this thread).
  • We will do our best to answer in timely fashion.

1. Quick start

You can download PhoenixMiner 5.1c

If you want to check the integrity of the downloaded file, please use the following hashes (you need the last file only if you want to mine BCI with Nvdia cards under Windows):

Here are the command line parameters for some of the more popular pools and coins:

  PhoenixMiner.exe -pool -pool2 -wal YourEthWalletAddress.WorkerName -proto 3 (ETH, secure connection):
  PhoenixMiner.exe -pool ssl:// -pool2 ssl:// -wal YourEthWalletAddress.WorkerName -proto 3 (ETH):
  PhoenixMiner.exe -pool -pool2 -wal YourEthWalletAddress.WorkerName -proto 3 (ETH):
  PhoenixMiner.exe -pool -wal YourEthWalletAddress/WorkerName -pass x
nicehash (ethash):
  PhoenixMiner.exe -pool stratum+tcp:// -wal YourBtcWalletAddress -pass x -proto 4 -stales 0
f2pool (ETH):
  PhoenixMiner.exe -epool -ewal YourEthWalletAddress -pass x -worker WorkerName  
miningpoolhub (ETH):
  PhoenixMiner.exe -pool -wal YourLoginName.WorkerName -pass x -proto 1 (ETH):
  PhoenixMiner.exe -pool -wal YourLoginName.WorkerName -pass x -proto 1 (ETC):
  PhoenixMiner.exe -pool -wal YourEtcWalletAddress.WorkerName (ETC):
  PhoenixMiner.exe -pool -pool2 -worker WorkerName -wal YourEtcWalletAddress -pass x -retrydelay 2 (ethash auto-switching):
  PhoenixMiner.exe -pool -wal YourEthWalletAddress -worker WorkerName -proto 2 (EXP):
  PhoenixMiner.exe -pool -wal YourExpWalletAddress/WorkerName
miningpoolhub (MUSIC):
  PhoenixMiner.exe -pool -wal YourLoginName.WorkerName -pass x -proto 1 (UBIQ):
  PhoenixMiner.exe -pool -wal YourUbqWalletAddress -worker WorkerName -coin ubq (UBIQ):
  PhoenixMiner.exe -pool -wal YourUbqWalletAddress -pass x -worker WorkerName -coin ubq (UBIQ):
  PhoenixMiner.exe -pool -wal YourUbqWalletAddress.WorkerName -pass x -proto 4 -coin ubq (PIRL):
  PhoenixMiner.exe -pool -wal YourPirlWalletAddress -pass x -worker WorkerName (Metaverse ETP):
  PhoenixMiner.exe -pool -wal YourMetaverseETPWalletAddress -worker Rig1 -pass x (Ellaism):
  PhoenixMiner.exe -pool -wal YourEllaismWalletAddress -worker Rig1 -pass x (ETH PPS):
  PhoenixMiner.exe -pool -wal YourEthWalletAddress.WorkerName -proto 4 -pass x (ETH HVPPS):
  PhoenixMiner.exe -pool -wal YourEthWalletAddress.WorkerName -proto 4 -pass x (CLO):
  PhoenixMiner.exe -pool -pool2 -worker WorkerName -wal YourEthWalletAddress -pass x -coin clo -retrydelay 2 (CLO):
  PhoenixMiner.exe -pool -wal YourEthWalletAddress -pass x -coin clo -worker rigName

Dual-mining command-line examples:

ETH on ETH, Blake2s on Nicehash:
  PhoenixMiner.exe -pool ssl:// -pool2 ssl:// -wal YourEthWalletAddress.WorkerName -proto 3 -dpool -dwal YourBtcWalletAddress -dcoin blake2s
Nicehash (Ethash + Blake2s):
  PhoenixMiner.exe -pool stratum+tcp:// -wal YourBtcWalletAddress -pass x -proto 4 -stales 0 -dpool -dwal YourBtcWalletAddress -dcoin blake2s

ProgPOW command-line examples:

BCI on BCI-Server:
  PhoenixMiner.exe -pool -wal YourBciWalletAddress.Rig1 -coin bci -proto 1

2. Features, requirements, and limitations

* Supports AMD RX5700, Radeon VII, Vega, 580/570/480/470, 460/560, Fury, 390/290 and older AMD GPUs with enough VRAM
* Supports Nvidia 20×0, 16×0, 10×0 and 9×0 series as well as older cards with enough VRAM
* Highly optimized OpenCL and CUDA cores for maximum ethash mining speed
* Optional “green” kernels for RX580/570/560/480/470/460 to lower the power consumption by 2-3% with small, or no drop in hashrate
* Lowest developer fee of 0.65% (35 seconds defvee mining per each 90 minutes)
* Dual mining ethash/Blake2s with lowest devfee of 0.9% (35 seconds defvee mining per each 65 minutes)
* Advanced statistics: actual difficulty of each share, effective hashrate at the pool, and optional showing of estimated income in USD
* DAG file generation in the GPU for faster start-up and DAG epoch switches
* Supports all ethash mining pools and stratum protocols
* Supports secure pool connections (e.g. ssl:// to prevent IP hijacking attacks
* Detailed statistics, including the individual cards hashrate, shares, temperature, fan speed, clocks, voltages, etc.
* Unlimited number of fail-over pools in epools.txt configuration file (or two on the command line)
* Automatic GPU tuning for the AMD GPUs to achieve maximum performance with your rig
* Supports devfee on alternative ethash currencies like ETC, EXP, Music, UBQ, Pirl, Ellaism, Metaverse ETP, PGC, Akroma, WhaleCoin, Victorium, Nekonium, Mix, EtherGem, Aura, HBC, Genom, EtherZero, Callisto, DubaiCoin, MOAC, Ether-1, and EtherCC. This allows you to use older cards with small VRAM or low hashate on current DAG epochs (e.g. GTX970).
* Full compatibility with the industry standard Claymore’s Dual Ethereum miner, including most of command-line options, configuration files, and remote monitoring and management.
* Supports the new Ubqhash algorithm for the UBQ coin. Please note that you must add -coin ubq to your command line (or COIN: ubq to your epools.txt file) in order to mine UBQ
* Supports the ProgPOW algorithm for the Bitcoin Interest (BCI) coin mining. Please note that you must add -coin bci to your command line (or COIN: bci to your epools.txt file) in order to mine BCI
* Supports the ProgPOW algorithm for mining BCI.
* More features coming soon!

PhoenixMiner requires Windows x64 (Windows 7, Windows 10, etc.), or Linux x64 (tested on Ubuntu LTS
and Debian stable).

PhoenixMiner also supports dual mining (simultaneous mining of ethash/ubqhash and other cryptocoin algorithm).
Currently we support only Blake2s as secondary algorithm for dual mining. Note that when using dual mining,
there is no devfee on the secondary coin but the devfee on the main coin is increased to 0.9%. In other words,
if you are using the dual mining feature PhoenixMiner will mine for us for 35 seconds every 65 minutes.

Solo mining is supported since version 2.7c.

While the miner is running, you can use some interactive commands. Press the key ‘h’ while the
miner’s console window has the keyboard focus to see the list of the available commands. The
interactive commands are also listed at the end of the following section.

3. Command-line arguments

Note that PhoenixMiner supports most of the command-line options of Claymore’s dual Ethereum miner
so you can use the same command line options as the ones you would have used with Claymore’s miner.

Pool options:
  -pool <host:port> Ethash pool address (prepend the host name with ssl:// for SSL pool, or http:// for solo mining)
  -wal <wallet> Ethash wallet (some pools require appending of user name and/or worker)
  -pass <password> Ethash password (most pools don't require it, use 'x' as password if unsure)
  -worker <name> Ethash worker name (most pools accept it as part of wallet)
  -proto <n> Selects the kind of stratum protocol for the ethash pool:
     1: miner-proxy stratum spec (e.g. coinotron)
     2: eth-proxy (e.g. dwarfpool, nanopool) - this is the default, works for most pools
     3: qtminer (e.g. ethpool)
     4: EthereumStratum/1.0.0 (e.g. nicehash)
     5: EthereumStratum/2.0.0
  -coin <coin> Ethash coin to use for devfee to avoid switching DAGs:
     auto: Try to determine from the pool address (default)
     eth: Ethereum
     etc: Ethereum Classic
     exp: Expanse
     music: Musicoin
     ubq: UBIQ
     pirl: Pirl
     ella: Ellaism
     etp: Metaverse ETP
     whale: WhaleCoin
     vic: Victorium
     nuko: Nekonium
     mix: Mix
     egem: EtherGem
     etz: EtherZero
     clo: Callisto
     dbix: DubaiCoin
     moac: MOAC
     etho: Ether-1
     yoc: Yocoin
     b2g: Bitcoiin2Gen
     esn: Ethersocial
     ath: Atheios
     reosc: REOSC
     qkc: QuarkChain
     bci: Bitcoin Interest
  -stales <n> Submit stales to ethash pool: 1 - yes (default), 0 - no
  -pool2 <host:port>  Failover ethash pool address. Same as -pool but for the failover pool
  -wal2 <wallet> Failover ethash wallet (if missing -wal will be used for the failover pool too)
  -pass2 <password> Failover ethash password (if missing -pass will be used for the failover pool too)
  -worker2 <name> Failover ethash worker name (if missing -worker will be used for the failover pool too)
  -proto2 <n> Failover ethash stratum protocol (if missing -proto will be used for the failover pool too)
  -coin2 <coin> Failover devfee Ethash coin (if missing -coin will be used for the failover pool too)
  -stales2 <n> Submit stales to the failover pool: 1 - yes (default), 0 - no
  -dpool <host:port> Dual mining pool address
  -dwal <wallet> Dual mining wallet
  -dpass <password> Dual mining pool password (most pools don't require it, use 'x' as password if unsure)
  -dworker <name> Dual mining worker name
  -dcoin blake2s Currently only the Blake2s algorithm is supported for dual mining. If you want to put
        all dual mining pools in dpools.txt, you need to set -dcoin blake2s in the command-line or in config.txt
   to force the miner to load the dual mining pools from dpools.txt
  -dstales <n> Submit stales to the dual mining pool: 1 - yes (default), 0 - no
General pool options:
  -fret <n> Switch to next pool afer N failed connection attempts (default: 3)
  -ftimeout <n> Reconnect if no new ethash job is receved for n seconds (default: 600)
  -ptimeout <n> Switch back to primary pool after n minutes. This setting is 30 minutes by default;
     set to 0 to disable automatic switch back to primary pool.
  -retrydelay <n> Seconds to wait before reconnecting (default: 20)
  -gwtime <n> Recheck period for Solo/GetWork mining (default: 200 ms)
  -rate <n> Report hashrate to the pool: 1 - yes, 0 - no (1 is the default), 2 - (for solo mining only)
     use alternative name of the report method "eth_submitHashRate" instead of "eth_submitHashrate"
Benchmark mode:
  -bench [<n>],-benchmark [<n>] Benchmark mode, optionally specify DAG epoch. Use this to test your rig.
     If you specify only the -bench option, you will benchmark the ethash algorithm. If you want to bench
     the dual mining, use the options -bench <n> -dcoin blake2s. If you want to benchmark the ProgPOW BCI
     algorithm, use the options -bench <n> -coin bci
Remote control options:
  -cdm <n> Selects the level of support of the CDM remote monitoring:
     0: disabled
     1: read-only - this is the default
     2: full (only use on secure connections)
  -cdmport <port> Set the CDM remote monitoring port (default is 3333). You can also specify
     <ip_addr:port> if you have a secure VPN connection and want to bind the CDM port to it
  -cdmpass <pass> Set the CDM remote monitoring password
  -cdmrs Reload the settings if config.txt is edited/uploaded remotely. Note that most options require restart in order to change.
      Currently the follwing options can be changed without restarting: -mi, -gt, -sci, -clf, -nvf, -gpow, and most of the
      hardware control parameters (-tt, -fcm, -fanmin, -fanmax, -powlim, -tmax, -ttli, -cclock, -cvddc, -mclock,
      -mvddc, -ppf, -straps, -vmt1, -vmt2, -vmt3, -vmr)
Mining options:
  -amd  Use only AMD cards
  -acm  Turn on AMD compute mode on the supported GPUs. This is equivalent of pressing 'y' in the miner console.
  -nvidia  Use only Nvidia cards
  -gpus <123 ..n> Use only the specified GPUs (if more than 10, separate the indexes with comma)
  -mi <n> Set the mining intensity (0 to 14; 12 is the default for the new kernels). You may specify this option per-GPU.
  -gt <n> Set the GPU tuning parameter (6 to 400). The default is 15. You can change the
          tuning parameter interactively with the '+' and '-' keys in the miner's console window.
          If you don't specify -gt or you specify value 0, the miner will start auto-tuning to determine the best GT value for each GPU
          Note that when the GPU is dual-mining, it ignores the -gt values, and uses -sci instead.
  -sci <n> Set the dual mining intensity (1 to 1000). The default is 30. As you increase the value of -sci,
           the secondary coin hashrate will increase but the price will be higher power consumption and/or
           lower ethash hashrate.
           You can change the this parameter interactively with the '+' and '-' keys in the miner
           console window. You may specify this option per-GPU. If you set -sci to 0,
      the miner will use auto-tuning to determine the best value, while trying to maximize the
      ethash hashrate regardless of the secondary coin hashrate.
  -clKernel <n> Type of OpenCL kernel: 0 - generic, 1 - optimized, 2 - alternative, 3 - turbo (1 is the default)
  -clGreen <n> Use the power-efficient ("green") kernels (0: no, 1: yes; default: 0).
                 You may specify this option per-GPU. Note that you have to run auto-tune again as the
                 optimal GT values are completely different for the green kernels
  -clNew <n> Use the new AMD kernels (0: no, 1: yes; default: 1)
  -clf <n> AMD kernel sync (0: never, 1: periodic; 2: always; default: 1)
  -nvKernel <n> Type of Nvidia kernel: 0 auto (default), 1 old (v1), 2 newer (v2), 3 latest (v3).
                Note that v3 kernels are only supported on GTX10x0 GPUs. Also note that dual mining is
                supported only by v2 kernels. You may specify this option per-GPU.
  -nvdo <n> Enable Nvidia driver-specific optimizations (0 - no, the default; 1 - yes). Try -nvdo 1 if your
            are unstable. You may specify this option per-GPU.
  -nvNew <n> Use new Nvidia kernels if supported (0: no, 1: yes; default: 1)
  -nvf <n> Nvidia kernel sync (0: never, 1: periodic; 2: always; 3: forced; default: 1). You may specify this option per-GPU.
  -mode <n> Mining mode (0: dual mining if dual pool(s) are specified; 1: ethash only even if dual pools are specified).
            You may specify this option per-GPU.
  -list List the detected GPUs devices and exit
  -gbase <n> Set the index of the first GPU (0 or 1, default: 1)
  -minRigSpeed <n> Restart the miner if avg 5 min speed is below <n> MH/s
  -eres <n> Allocate DAG buffers big enough for n epochs ahead (default: 2) to
      avoid allocating new buffers on each DAG epoch switch, which should improve DAG switch stability
  -dagrestart <n> Restart the miner when allocating buffer for a new DAG epoch. The
      possible values are: 0 - never, 1 - always, 2 - auto (the miner decides depending on the driver version).
      This is relevant for 4 GB AMD cards, which may have problems with new DAG epochs after epoch 350.
  -lidag <n> Slow down DAG generation to avoid crashes when swiching DAG epochs
      (0-3, default: 0 - fastest, 3 - slowest).
  -gser <n> Serializing DAG creation on multiple GPUs (0 - no serializing, all GPUs generate the DAG simultaneously, this is the default;
      1 - partial overlap of DAG generation on each GPU; 2 - no overalp (each GPU waits until the previous one has finished generating the DAG);
      3-10 - from 1 to 8 seconds delay after each GPU DAG generation before the next one)
  -gpureset <n> Fully reset GPU when paused (0 - no, 1 - yes; default: no, except on 1080Ti). You may specify this option per-GPU.
  -altinit Use alternative way to initialize AMD cards to prevent startup crashes
  -rvram <n> Minimum free VRAM in MB (-1: don't check; default: 384 for Windows, and 128 for Linux)
  -wdog <n> Enable watchdog timer: 1 - yes, 0 - no (1 is the default). The watchdog timer checks
      periodically if any of the GPUs freezes and if it does, restarts the miner (see the -rmode
      command-line parameter for the restart modes)
  -wdtimeout <n> Watchdog timeout (30 - 300; default 45 seconds). You can use this parameter to increase
      the default watchdog timeout in case it restarts the miner needlessly
  -rmode <n> Selects the restart mode when a GPU crashes or freezes:
     0: disabled - miner will shut down instead of restarting
     1: restart with the same command line options - this is the default
     2: reboot (shut down miner and execute reboot.bat)
  -log <n> Selects the log file mode:
     0: disabled - no log file will be written
     1: write log file but don't show debug messages on screen (default)
     2: write log file and show debug messages on screen
  -logfile <name> Set the name of the logfile. If you place an asterisk (*) in the logfile name, it will be
      replaced by the current date/time to create a unique name every time PhoenixMiner is started. If there
      is no asterisk in the logfile name, the new log entries will be added to end of the same file. If you
      want to use the same logfile but the contents to be overwritten every time when you start the miner,
      put a dollar sign ($) character in the logfile name (e.g. -logfile my_log.txt$).
  -logdir <path> Set a path where the logfile(s) will be created
  -logsmaxsize <n> Maximum size of the logfiles in MB. The default is 200 MB (use 0 to turn off the limitation).
      On startup, if the logfiles are larger than the specified limit, the oldest are deleted. If you use a
      single logfile (by using -logfile), then it is truncated if it is bigger than the limit and a new one
      is created.
  -config <name> Load a file with configuration options that will be added to the command-line options.
      Note that the order is important. For example, if we have a config.txt file that contains -cclock 1000
      and we specify command line -cclock 1100 -config config.txt, the options from the config.txt file will take
      precedence and the resulting -cclock will be 1000. If the order is reversed (-config config.txt -cclock 1100)
      then the second option takes precedence and the resulting -cclock will be 1100. Note that only one -config
      option is allowed. Also note that if you reload the config file with 'c' key or with the remote interface,
      its options will take precedence over whatever you have specified in the command-line.
  -timeout <n> Restart miner according to -rmode after n minutes
  -pauseat <hh:mm> Pause the miner at hh::mm (24 hours time). You can specify multiple times: -pauseat 6:00,12:00
  -resumeat <hh:mm> Resume the miner at hh::mm (24 hours time). You can specify multiple times: -resumeat 8:00,22:00
  -gswin <n> GPU stats time window (5-30 sec; default: 15; use 0 to revert to pre-2.8 way of showing momentary stats)
  -gsi <n> Speed stats interval (5-30 sec; default: 5; use 0 to disable). The detailed stats are still
           shown every 45 seconds and aren't affected by the -gsi value
  -astats <n> Show advanced stats from Web sources (0: no; 1: yes). By default the coin exchange rates are updated every
              4 hours, and the coin difficulty is updated every 8 hours. You can increase these periods by specifying
              for example -astats 12, which will increase update periods to 12 and 24 hours respectively
  -gpow <n> Lower the GPU usage to n% of maximum (default: 100). If you already use -mi 0 (or other low value) use -li instead
  -li <n> Another way to lower the GPU usage. Bigger n values mean less GPU utilization; the default is 0.
  -resetoc Reset the hardware overclocking settings on startup
  -leaveoc Do not reset overclocking settings when closing the miner
Hardware control options, use comma to specify different values for each GPU:
  -tt <n> Set fan control target temperature (special values: 0 - no HW monitoring on ALL cards,
     1-4 - only monitoring on all cards with 30-120 seconds interval, negative - fixed fan speed at n %)
  -hstats <n> Level of hardware monitoring: 0 - temperature and fan speed only; 1 - temperature, fan speed, and power;
     2 - full (include core/memory clocks, voltages, P-states). The default is 1.
  -pidle <n> Idle power consumption of the rig in W. Will be added to the GPU power consumption when
     calculating the total power consumption of the rig.
  -ppf <n> The power usage of each GPU will be multiplied by this value to get the actual usage. This value is
     in percent, so for example if the GPU reports 100 W power usage and you have specified -ppf 106 the GPU
     power usage will be calculated to be 100 * (106 / 100) = 106 W. This allows you to correct for the efficiency
     of the PSUs and the individual GPUs. You can also specify this value for each GPU separately.
  -prate <n> Price of the electricity in USD per kWh (e.g. -prate 0.1). If specified the miner will calculate the
     rig daily electricity cost
  -fanmin <n> Set fan control min speed in % (-1 for default)
  -fanmax <n> Set fan control max speed in % (-1 for default)
  -fcm <n> Set fan control mode (0 - auto, 1 - use VBIOS fan control, 2 - forced fan control; default: 0)
  -tmax <n> Set fan control max temperature (0 for default)
  -powlim <n> Set GPU power limit in % (from -75 to 75, 0 for default)
  -cclock <n> Set GPU core clock in MHz (0 for default). For Nvidia cards use relative values (e.g. -300 or +400)
  -cvddc <n> Set GPU core voltage in mV (0 for default). For Nvidia cards use relative values (e.g. -300 or +400)
  -mclock <n> Set GPU memory clock in MHz (0 for default)
  -mvddc <n> Set GPU memory voltage in mV (0 for default)
  -tstop <n> Pause a GPU when temp is >= n deg C (0 for default; i.e. off)
  -tstart <n> Resume a GPU when temp is <= n deg C (0 for default; i.e. off)
  -mt <n> VRAM timings (AMD under Windows only): 0 - default VBIOS values; 1 - faster timings; 2 - fastest timings.
     The default is 0. This is useful for mining with AMD cards without modding the VBIOS. If you have modded BIOS,
     it is probably faster than even -mt 2
  -leavemt  Do not reset memory timing level ("-mt") to 0 when closing
  -ttli <n>   Lower GPU usage when GPU temperature is above n deg C. The default value is 0, which means do not lower the usage regardless of the
     GPU temperature. This option is useful whenever -tmax is not working. If you are using both -tt and -ttli options, the
     temperature in -tt should be lower than the -ttli to avoid throttling the GPUs without using the fans to properly cool them first.
  -straps <n> Memory strap level (Nvidia cards 10x0 series only). The possible values are 0 to 6. 0 is the default value and uses the default
     timings from the VBIOS. Each strap level corresponds to a predefined combination of memory timings (-vmt1, -vmt2,
     -vmt3, -vmr). Strap level 3 is the fastest predefined level and may not work on most cards, 1 is the slowest (but still faster than
     the default timings). Strap levels 4 to 6 are the same as 1 to 3 but with less aggressive refresh rates (i.e. lower "-vmr" values).
  -vmt1 <n>  Memory timing parameter 1 (0 to 100, default 0)
  -vmt2 <n>  Memory timing parameter 2 (0 to 100, default 0)
  -vmt3 <n>  Memory timing parameter 3 (0 to 100, default 0)
  -vmr <n>   Memory refresh rate (0 to 100, default 0)
  -nvmem <n>  Force using straps on unsupported Nvidia GPUs (0 - do not force, 1 - GDDR5, 2 - GDDR5X). Make sure that the parameter matches your GPU
     memory type. You can try this if your card is Pascal-based but when you try to use -straps or any other memory timing option, the card
     is shown as "unsupported".
General Options:
  -v,--version  Show the version and exit
  -vs Show short version string (e.g. "4.1c") and exit
  -h,--help  Show information about the command-line options and exit
Per-GPU options
Some of the PhoenixMiner options can provide either the same setting for all GPUs, or a different
setting for each of the GPUs. For example, to specify the -gt value for all cards you would write
-gt 90 but if you want to specify a different GT value for each of the cards, use something like this:
-gt 20,15,40,90,90 for a five-GPU mining rig. This would set GT to 20 for the first GPU, 15 for the second
GPU, and so on. If you specify less values than you have GPUs, the rest of the GPUs will use the default
value for the parameter.

You can also use another, more flexible way of specifying different values for the different cards.
This is best explained by example: -cclock *:1100,1-3:1090,4:1300 – here we are setting core clock
to 1100 MHz for all cards, except the cards 1 to 3, on which it is set to 1090 MHz, and card 4 to 1300 MHz.

The part before the colon (:) is the selector, which selects the GPUs for which the value after the colon is applied. The selector can be:
  – single GPU index: e.g. 5:1000 sets 1000 for the 5th GPU
  – range of GPU indexes: e.g 2-5:1200 sets 1200 for the GPUs 2,3,4, and 5
  – asterisk, which sets the value for all GPUs
  – label amd or nvidia: e.g. amd:1090 sets the value to 1090 for all AMD cards
  – arbitrary string that starts with letter and can contain letters, numbers and asterisks,
    which is matched with the GPU name as listed by PhoenixMiner. Example: gtx*1070:+500 will
    set value +500 for all cards which contain ‘gtx’ and ‘1070’ in their names with anything
    between them. This will match ‘Nvidia GeForce GTX 1070’ but not ‘Nvidia GeForce 1070’.

Note that if more than one selector matches given card, than only the last one counts.
Example: -cclock *:1100,1-4:1090,2:1300 will set card 2 to 1300; cards 1,2, and 4 to 1090;
and the rest of the cards to 1100 MHz core clock.

Additionally, while the miner is running, you can use the following interactive commands
in the console window by pressing one of these keys:
  s   Print detailed statistics
  1-9 Pause/resume GPU1 … GPU9 (if you have more than 9 GPUs, type 010 for card 10, 011 for card 11, etc.)
  p   Pause/resume the whole miner
  +,- Increase/decrease GPU tuning parameter
  g   Reset the GPU tuning parameter (and stop auto-tuning if active)
  x   Select the GPU(s) for manual or automatic GT tuning
  z   Start AMD auto-tune process
  r   Reload epools.txt and switch to primary ethash pool
  e   Select the current ethash pool (if you have more than 9 pools in the list, type 010 for pool 10, 011 for pool 11, etc.)
  d   Select the current dual-mining pool
  y   Turn on AMD Compute mode if it is off on some of the GPUs
  c   Reload the config.txt file (some settings require restart, see -cdmrs option above for details)
  h   Print this short help  

4. Configuration files

Note that PhoenixMiner supports the same configuration files as Claymore’s dual Ethereum miner
so you can use your existing configuration files without any changes.

Instead of using command-line options, you can also control PhoenixMiner with configuration
files. If you run PhoenixMiner.exe without any options, it will search for the file config.txt
in the current directory and will read its command-line options from it. If you want, you can
use file with another name by specifying its name as the only command-line option
when running PhoenixMiner.exe.

You will find an example config.txt file in the PhoenixMiner’s directory.

Instead of specifying the pool(s) directly on the command line, you can use another configuration
file for this, named epools.txt. There you can specify one pool per line (you will find an example
epools.txt file in the PhoenixMiner’s directory).

For the dual mining pools, you can use the dpools.txt file, which has the same format as epools.txt
but for the secondary coin. You will find an example epools.txt file in the PhoenixMiner’s directory.
Note that unlike the epools.txt, which is loaded each time when the miner starts, the dpools.txt file
is only read if you specify a dual mining pool on the command line with -dpool, or at least add
the -dcoin blake2s command-line option.

The advantages of using config.txt and epools.txt/dpools.txt files are:
– If you have multiple rigs, you can copy and paste all settings with these files
– If you control your rigs via remote control, you can change pools and even the miner options by
uploading new epools.txt files to the miner, or by uploading new config.txt file and restarting
the miner.

5. Remote monitoring and management

Phoenix miner is fully compatible with Claymore’s dual miner protocol for remote monitoring and
management. This means that you can use any tools that are build to support Claymore’s dual miner,
including the “Remote manager” application that is part of Claymore’s dual miner package.

We are working on much more powerful and secure remote monitoring and control functionality and
control center application, which will allow better control over your remote or local rigs and some
unique features to increase your mining profits.

6. Hardware control options

 Here are some important notes about the hardware control options:

  • Most recent Nvidia drivers require running as administrator (or as root under Linux) to allow hardware control, so you must run
      PhoenixMiner as administrator for the VRAM timing options to work.
  • When using the VRAM timing options (“-straps”, “-vmt1”, “-vmt2”, “-vmt3”, “-vmr”), start with lower values and make sure that the
      cards are stable before trying higher and more aggressive settings. You can use “-straps” along with the other options. For example
      “-straps 1” “-vmt1 60” will use the timings from 1st strap level but -vmt1 will be set to 60 instead of whatever value is specified by
      the 1st strap level. In such case the “-straps” option must be specified first.
  • Generally, the “-vmt3” option has little effect on the hashrate, so first try adjusting the other parameters.
  • The VRAM timing options can be quite different between the GPUs, even when the GPUs are the same model. Therefore, you can (and
      probably should) specify the VRAM timing options per-GPU.
  • Hardware control options are supported for both AMD and Nvidia cards under Windows. Under Linux most options are supported only for AMD cards.
  • If you specify a single value (e.g. -cvddc 1150), it will be used on all cards. Specify different values for each card like this (separate with comma): -cvddc 1100,1100,1150,1120,1090 If the specified values are less than the number of GPUs, the rest of GPUs will use the default values.
  • We have tested only on relatively recent AMD GPUs (RX460/470/480/560/570/580, Vega, Radeon VII, RX5700). Your results may vary with older GPUs.
  • The blockchain beta drivers from AMD show quite unstable results – often the voltages don’t stick at all or revert back to the default after some time. For best results use the newer drivers from AMD: 18.5.1 or later, where most of the bugs are fixed.
  • -tmax specifies the temperature at which the GPU should start to throttle (because the fans can’t keep up).
  • If you use other programs for hardware control, conflicts are possible and quite likely. Use something like GPU-Z to monitor the voltages, etc. MSI Afterburner also seems to behave OK (so you can use it to control the Nvidia cards while AMD cards are controller by PhoenixMiner).
  • This should be obvious but still: if given clocks/voltages are causing crashes/freezes/incorrect shares when set with third-party program, they will be just as much unstable when set via PhoenixMiner hardware control options.
  • If you have problems with hardware control options of PhoenixMiner and you were using something else to control clocks, fans, and voltages (MSI Aftrerburner, OverdriveNTool, etc.), which you were happy with, it is probably best to keep using it and ignore the hardware control options of PhoenixMiner (or use only some of them and continue tweaking the rest with your third-party tools).

7. FAQ

Q001: Why another miner?
   A: We feel that the competition is good for the end user. In the first releases of PhoenixMiner
   we focused on the basic features and on the mining speed but we are now working on making our
   miner easier to use and even faster.

Q002: Can I run several instances of PhoenixMiner on the same rig?
   A: Yes, but make sure that each GPU is used by a single miner (use the -gpus, -amd, or -nvidia
   command-line options to limit the GPUs that given instance of PhoenixMiner actually uses).
      Another possible problem is that all instances will use the default CDM remote port 3333,
   which will prevent proper remote control for all but the first instance. To fix this problem,
   use the -cdmport command-line option to change the CDM remote port form its default value.

Q003: Can I run PhoenixMiner simultaneously on the same rig with other miners?
   A: Yes, but see the answer to the previous question for how to avoid problems.

Q004: What is a stale share?
   A: The ethash coins usually have very small average block time (15 seconds in most instances).
   On the other hand, to achieve high mining speed we must keep the GPUs busy so we can’t switch
   the current job too often. If our rigs finds a share just after the someone else has found a
   solution for the current block, our share is a stale share. Ideally, the stale shares should be
   minimal as same pools do not give any reward for stale shares, and even these that do reward
   stale shares, give only partial reward for these shares. If the share is submitted too long
   after the block has ended, the pool may even fully reject it.

Q005: Why is the percentage of stale shares reported by PhoenixMiner smaller than the one shown
   by the pool?
   A: PhoenixMiner can only detect the stale shares that were discovered after it has received a
   new job (i.e. the “very stale”) shares. There is additional latency in the pool itself, and in
   the network connection, which makes a share stale even if it was technically found before the
   end of the block from the miner’s point of view. As pools only reports the shares as accepted
   or rejected, there is no way for the miner to determine the stale shares from the pool’s
   point of view.

Q006: What is the meaning of the “actual share difficulty” shown by PhoenixMiner when a share is
   A: It allows you to see how close you were to finding an actual block (a rare event these days
   for the most miners with reasonable-sized mining rigs). You can find the current difficulty for
   given coin on sites like and then check to see if you have exceeded it with your
   maximum share difficulty. If you did, you have found a block (which is what the mining is all

Q007: What is the meaning of “effective speed” shown by PhoenixMiner’s statistics?
   A: This is a measure of the actually found shares, which determines how the pool sees your
   miner hashrate. This number should be close to the average hashrate of your rig (usually a 2-4%
   lower than it) depending you your current luck in finding shares. This statistic is meaningless
   in the first few hours after the miner is started and will level off to the real value with

Q008: Why is the effective hashrate shown by the pool lower than the one shown by PhoenixMiner?
   A: There are two reasons for this: stale shares and luck. The stale shares are rewarded at only
   about 50-70% by most pools. The luck factor should level itself off over time but it may take
   a few days before it does. If your effective hashrate reported by the pool is consistently lower
   than the hashrate of your rig by more than 5-7% than you should look at the number of stale shares
   and the average share acceptance time – if it is higher than 100 ms, try to find a pool that is
   near to you geographically to lower the network latency. You can also restart your rig, or
   try another pool.

8. Troubleshooting

P001: I’m using AMD RX470/480/570/580 or similar card and my hashrate dropped significantly in the past
     few months for Ethereum and Ethereum classic!
     S: This is known problem with some cards. For the newer cards (RX470/480/570/580), this can be
     solved by using the special blockchain driver from AMD (or try the latest drivers, they may
     incorporate the fix). For the older cards there is no workaround but you still can mine EXP,
     Musicoin, UBQ or PIRL with the same speed that you mined ETH before the drop.

P002: My Nvidia GTX9x0 card is showing very low hashrate under Windows 10!
      S: While there is a (convoluted) workaround, the best solution is to avoid Windows 10
      for these cards – use Windows 7 instead.

P003: I’m using Nvidia GTX970 (or similar) card and my hashrate dropped dramatically for Ethereum or
      Ethereum classic!
      S: GTX970 has enough VRAM for larger DAGs but its hashate drops when the DAG size starts
      to exceed 2 GB or so. Unlike the AMD Polaris-based cards, there is no workaround for this
      problem. We recommend using these cards to mine EXP, Musicoin, UBQ or PIRL with the same speed
      that you used to ETH before the drop.

P004: I can’t see some of my cards (or their fan speed and temperature) when using Windows Remote Desktop (RDP)!
      S: This is a known problem with RDP. Use VNC or TeamViewer instead.

P005: On Windows 10, if you click inside the PhoenixMiner console, it freezes!
      S: This is a known problem on Windows 10, related to so called “Quick Edit” feature of the command
     prompt window. From PhoenixMiner 2.6, the QuickMode is disabled by default, so you shouldn’t experience
     this problem. If you still, do, read here how to solve it:

P006: Immediately after starting, PhoenixMiner stops working and the last message is “debugger detected”
      S: If you have only Nvidia cards, add the option -nvidia to the PhoenixMiner.exe command line.
     If you have only AMD cards, add the option -amd to the command line.

P007: PhoenixMiner shows an error after allocating DAG buffer and shuts down.
      S: If you have more than one GPU, make sure that your Windows page file minimal size is set to at
          least (N x DS + 4) GB, where N is the number of GPUs, and DS is the size of DAG in GB (about 2.9 GB around
          January 2019 for ETC and ETH). For example, if you have 10 GPUs, you need 10 x 2.9 + 4 = 33 GB minimal
          size of the page file. Note that this will increase as the DAG sizes increase. If you are using -clkernel 3, for each GPU add size of
          the DAG twice instead of once (e.g. for 3 GPUs mining with -clkenel 3 you will need 3 x 2 x 2.9 + 4 = 21.4 GB minimal page file size)

P008: The miner sometimes crashes when the DAG epoch change.
      S: During DAG generation, the GPUs are loaded more than during the normal operation. If you have
     overclocked or undervolted the GPUs “to the edge”, the DAG generation ofter pushes them “over the
     edge”. Another possible reason for the crash (especially if the whole rig crashes) is the higher
     power usage during this process. You can lower the DAG generation speed by specifying the -lidag
     command-line option. The possible values are 0 (no slow down), 1, 2, and 3 (max slowdown).
     In order to check if your rig would be stable during DAG generation, run it in benchmark mode
     by specifying the -bench 210 command line option. Then every time when you press the key ‘d’
     the miner will advance to the next DAG epoch, and you will be able to see if it is stable during
     multiple DAG generations. If it isn’t you can try to alter the -lidag and -eres command line options
     until the desired stability is achieved.

P009: The miner can’t create the DAG buffer when mining ETC or ETH
     S: The versions of PhoenixMiner before 4.2 only support DAG epoch up to 265. Both ETC and ETH has reached epoch 266 already. To ensure uninterrupted operation, please upgrade to 4.2.
         PhoenixMiner 4.2 supports DAG epoch up to 330, and PhoenixMiner 4.5 supports DAG epoch up to 450.

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