How to increase the hashrate on Phoenix Miner

The memory boost options (Rxboost) require you to run as administrator (or root on Linux). To speed up memory timings, use the commands: -rxboost -vmr -straps -mt

What the Rxboost team does

Rxboost sets the refresh rate for video memory on AMD and Nvidia cards. Valid values:

  • 0 – default values,
  • 1 is a preset value that should work on most cards,
  • from 2 to 100 – increasingly aggressive timing speed settings).

What is the term RXBOOST?

RXBOOST is a term that is used to refer to a tool or approach that handles various memory options on AMD RX graphics cards. It was first introduced by Claymore in his Claymore ETH for Windows program and later implemented in Phoenix Miner.

This parameter  -rxboost is only supported on cards with GDDR5 video memory (RX4xx / RX5xx and older).

If you want to fine-tune the value, you can start the miner and write down the corresponding values, which are displayed in the log file  logfile.txt, and then use the commands instead of the numbers in the log -rxboost 1 -vmr -vmr

Phoenix Miner – Quick Start – Download and Setup

How to use Rxboost

Windows

Anyone using Windows can already use this tool by simply adding the  -rxboost 1.

Example:

PhoenixMiner.exe -pool eu-eth.hiveon.net:4444 -wal 0xdBa4C80E8a1298228D31D822dAe069Fd624D7B16 -worker Phoenix -epsw x -mode 1 -Rmode 1 -log 0 -mport 0 -etha 0 -retrydelay 1 -ftime 55 -tt 79 -tstop 89 -fanmin 30 -coin eth -rxboost 1

pause 

Example 2:

setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_SINGLE_ALLOC_PERCENT 100
PhoenixMiner.exe -pool us1.ethermine.org:4444 -wal кошелек.myrig -rxboost 1 -straps 1
pause

linux

Example:

./PhoenixMiner -pool eu-eth.hiveon.net:4444 -wal 0xdBa4C80E8a1298228D31D822dAe069Fd624D7B16 -worker Phoenix -epsw x -mode 1 -Rmode 1 -log 0 -mport 0 -etha 0 -retrydelay 1 -ftime 55 -tt 79 -tstop 89 -fanmin 30 -coin eth -rxboost 1
pause 

Using the  -rxboost,  -vmr or  command -straps on AMD cards requires  Phoenix Miner  to be run as an administrator on Windows (or root on Linux), so you need to run PhoenixMiner as an administrator for the VRAM settings to take effect.

And also in the properties of the executable  exe file itself, you need to check the box “Run this program as an administrator”

Note that the option  -mt will still work without being run as administrator/root.

Example:

PhoenixMiner.exe -pool eth-eu2.nanopool.org:9999 -wal 0x360d6f9efea21c82d341504366fd1c2eeea8fa9d -worker Phoenix -epsw x -mode 1 -Rmode 1 -log 0 -mport 0 -etha 0 -rvram -1 -eres 0 -rxboost 2
pause 

Tips for using rxboost

Set  -rxboost 1to enable this option and get another ~3-5% on AMD Polaris and other graphics cards. If the card is unstable, then adjust the intensity, for example, up to two –  -rxboost 2.

That is

  • -rxboost 50 is 50% power.
  • -rxboost 1 is 100% power.

The increase can also be applied for each card separately, separated by commas:

-rxboost 1,0,10,30. Zero means no setting. This means that for a specific video card, you can disable this setting.