Dual mining has become a popular strategy among cryptocurrency miners looking to maximize hardware utilization and profitability. One of the most effective combinations is running Ethereum (ETH) and Siacoin (SIA) simultaneously using Claymore’s Dual Miner 9.0 on the ethOS operating system. This guide walks you through configuring your rig for efficient dual mining, troubleshooting common issues, and optimizing performance — all while leveraging community-tested configurations and best practices.
Whether you're a beginner just getting started with ethOS or an experienced miner fine-tuning settings, this comprehensive walkthrough will help you achieve stable dual mining operations with minimal downtime.
Understanding Dual Mining with Claymore and ethOS
Dual mining allows your GPU to mine two different cryptocurrencies at once by allocating resources between a primary and secondary algorithm. With Claymore's Dual Miner, Ethereum (Ethash) serves as the primary coin, while Siacoin (CryptoNight) runs as the secondary. This setup makes efficient use of idle GPU memory and compute cycles without significantly impacting primary hash rates.
The ethOS Linux-based OS simplifies mining management but requires precise configuration files to enable advanced features like dual mining. The key files involved are:
claymore.stub.conf: Controls Claymore miner parameters.local.conf: Sets global miner settings, wallet addresses, and pool connections.
While ethOS doesn’t officially support dual mining, users have successfully implemented it through manual edits to these configuration files.
👉 Discover how to set up dual mining for maximum returns
Step-by-Step Configuration for ETH + SIA Dual Mining
1. Edit claymore.stub.conf
This file is located in the root directory (/home/ethos/). Open it using the terminal command:
nano claymore.stub.confLocate the section labeled:
#uncomment and configure the -dpool and -dwal lines below to enable dualmining.Remove the # symbol from the following lines and customize them:
-mode 0
-dpool stratum+tcp://sia-eu1.nanopool.org:7777
-dwal YOUR_SIA_WALLET_ADDRESS.WORKER_NAME
-dcoin sia
-dcri 20
-esm 1ReplaceYOUR_SIA_WALLET_ADDRESSwith your actual Siacoin wallet. The.WORKER_NAMEsuffix helps identify your rig on the mining pool dashboard.
Also ensure that -epool, -ewal, and related Ethereum parameters are correctly set or left commented if defined in local.conf.
2. Configure local.conf
Edit the local.conf file:
nano local.confSet essential parameters:
globalminer claymore
maxgputemp 85
stratumproxy enabled
proxywallet YOUR_ETH_WALLET_ADDRESS
proxypool1 pool-usa.ethosdistro.com:5001
globalfan 85
flags --cl-global-work 8192 --farm-recheck 200Note: Only include your Ethereum wallet inproxywallet. Do not repeat it inclaymore.stub.conf.
Some users report better stability by appending a worker name to the ETH wallet in claymore.stub.conf like -ewal WALLET_ADDRESS.miner1, even if it's already in local.conf.
Frequently Asked Questions (FAQ)
Can I dual mine ETH and SIA on ethOS?
Yes, although ethOS does not officially support dual mining, community members have confirmed successful setups using manual edits to claymore.stub.conf and local.conf. Ensure correct syntax and avoid duplicating wallet entries across files.
Why are my SIA shares being rejected?
Rejected shares often occur due to incorrect wallet formatting. On pools like Nanopool, you must append a period and worker name to your wallet address:
-dwal YOUR_SIA_WALLET.YOUR_WORKER_NAMEWithout this, the pool may not recognize your miner, leading to rejected submissions.
My ETH hash rate isn’t showing on the pool — what should I check?
First, verify that your Ethereum wallet address appears only in local.conf under proxywallet. If it's also listed in claymore.stub.conf, remove it — duplicate entries can interfere with reporting. Also, ensure you’ve added a worker identifier (e.g., .miner1) when necessary.
How do I monitor performance and temperatures?
Use built-in commands:
stats– Displays real-time hash rates, GPU temps, fan speeds, and power usage.top– Shows system resource utilization.gpuclk– Checks clock speeds and memory frequency.
Optimal temperatures should stay below 85°C, with fan speeds adjusted via globalfan in local.conf.
What are good overclocking settings for RX 470/580?
Based on user reports:
- Core Clock: 1130–1200 MHz
- Memory Clock: 2050–2350 MHz
- Power Tuning: -5 to +5%
Example flags:
globalcore 1200
globalmem 2350
globalpowertune 3These values balance performance and thermal output for AMD cards commonly used in dual mining rigs.
Why is my Siacoin balance zero despite accepted shares?
Payouts on nanopools typically require reaching a minimum threshold before distribution. Even with valid shares, your balance may show zero until you meet the payout limit (e.g., 1 SC on Nanopool). Check your miner status page to confirm active hashing and share accumulation.
👉 Learn how to optimize GPU performance for higher mining yields
Real-World Performance Metrics
Users report strong results with proper tuning. For example:
- MSI RX 580 8GB: ~28.8 MH/s ETH + ~575 MH/s SIA
- Sapphire RX 470: ~29 MH/s ETH + ~460 MH/s SIA per card
Power consumption averages around 198W under load, making this combo energy-efficient compared to solo mining.
Temperature management is crucial. Keeping GPU temps around 62–65°C ensures longevity and stability. Adjust fan curves using globalfan or BIOS tuning if needed.
Final Tips for Stability and Profitability
- Always back up configuration files before editing.
- Test changes incrementally; reboot after each modification.
- Use consistent worker names across both coins for easier tracking.
- Monitor rejected shares — high rejection rates indicate connectivity or config issues.
- Consider under-volting GPUs to reduce heat and power draw without sacrificing performance.
Dual mining ETH and SIA remains a viable option for miners seeking incremental gains from existing hardware investments.
👉 Start maximizing your mining profits today
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