Overview
Claymore's Dual Ethereum Miner (v15.0) supports both AMD and NVIDIA GPUs for mining Ethereum (ETH) alongside secondary coins like Decred (DCR) or Siacoin (SIA) on Windows/Linux systems. This guide covers performance benchmarks, common issues, and optimization tips.
Performance Benchmarks by GPU
| GPU Model | ETH Hashrate | Secondary Coin Hashrate | Notes |
|---|---|---|---|
| GTX 1070 | ~25 MH/s | ~300 MH/s (DCR) | Requires driver v369.09+ |
| GTX 980 Ti | 19.8 MH/s | 190 MH/s (DCR) | Runs hot at default settings |
| Radeon 280X | ~20 MH/s | ~180 MH/s (DCR) | Lower DCR intensity recommended |
👉 Check real-time mining stats
Common Issues & Solutions
1. Driver Compatibility
- Error: "GPU Miner cu_k1 failed" or "illegal memory access."
Solution:
- For NVIDIA GTX 10xx series, upgrade to v369.09+ drivers. Older versions (e.g., 368.81) are buggy for ETH mining.
- Windows 7/8.1 users may need to upgrade to Windows 10 for full compatibility.
2. Multi-GPU Configuration Bugs
- Fix: Redownload v15.0 if experiencing crashes in multi-GPU setups. Claymore released a patch for this.
3. Missing OpenCL.dll
- Cause: Incomplete driver installation.
- Fix: Reinstall NVIDIA drivers or manually place
OpenCL.dllin the system directory.
Optimization Tips
- Adjust Intensity: Use
+/-keys to fine-tune secondary coin mining intensity. - Monitor Temps: High temperatures (e.g., 85°C+) may throttle performance; improve cooling or reduce intensity.
- Stratum Support: For Siacoin, use
-dcoin siaand SiaMining.com’s stratum (port 7777).
FAQs
Q: Why is my GTX 1070’s ETH hashrate lower than expected?
A: Ensure you’re using drivers v369.09+. Older versions cap performance.
Q: Can I mine ETH on Windows 7 with a GTX 970?
A: Yes, but avoid driver 368.81 for GTX 10xx cards. Maxwell GPUs (9xx series) work fine.
Q: How do I reduce GPU temperatures?
A: Lower secondary coin intensity or improve airflow. Example:
-dcri 20 # Reduces Decred mining loadQ: Is Linux version available?
A: Yes, Claymore offers a Linux build. Use Genoil’s miner for NVIDIA on Linux until Claymore’s version stabilizes.
Final Notes
- Avoid Prohibited Content: This miner is for legitimate crypto mining only. Remove any promotional links.
- Need Help?: Refer to Claymore’s FAQ thread before posting questions.