How to set up Zcash mining with EWBF miner? (Equihash)

Understanding Zcash Mining Requirements

1. Zcash relies on the Equihash algorithm, which demands high memory bandwidth and substantial GPU VRAM. Systems with less than 4GB of VRAM per GPU will fail to initialize mining sessions.

2. The EWBF miner was one of the earliest widely adopted CUDA-based miners for Equihash, supporting NVIDIA GPUs exclusively. It does not function on AMD hardware or CPU-only setups.

3. A stable 64-bit Windows environment is required—most users deploy it on Windows 10 or Windows Server editions with updated NVIDIA drivers (version 384.94 or newer recommended).

4. Users must obtain a Zcash wallet address capable of receiving shielded or transparent funds. Transparent addresses (starting with “t1” or “t3”) are compatible with most pool payouts; shielded addresses require additional configuration and are unsupported by many pools.

5. Network connectivity must allow outbound TCP connections to mining pool endpoints. Firewalls or restrictive ISP policies may block stratum ports like 3000, 3001, or 3002.

Downloading and Configuring EWBF Miner

1. Download the latest archived version of EWBF’s CUDA 9.1-compatible binary from trusted community repositories—official hosting ceased after 2018, so verification via SHA256 checksums is critical.

2. Extract the ZIP archive into a dedicated folder with no spaces or Unicode characters in the path—e.g., C:\zcash_miner.

3. Create a batch file named start.bat containing command-line parameters: miner --server us-east.equihash-hub.miningpoolhub.com --port 3000 --user YOUR_WALLET_ADDRESS --pass x --proto 1.

4. Adjust GPU intensity using --devices to specify GPU indices and --cuda-mining-threads to allocate thread counts per device—typical values range between 12 and 24 depending on GPU model.

5. Launch the batch file as Administrator to ensure access to GPU resources and avoid CUDA initialization errors.

Choosing a Compatible Mining Pool

1. MiningPoolHub, FlyPool (prior to shutdown), and ZergPool historically supported Equihash with low minimum payout thresholds and transparent fee structures.

2. Pool URLs must match the region and protocol version—using us-west instead of eu may increase latency and reduce effective hashrate.

3. Authentication requires only a Zcash transparent address; no registration or API key is needed for basic operation.

4. Stratum protocol version selection impacts stability—--proto 1 enables legacy mode while --proto 2 activates enhanced session handling and better error recovery.

5. Payouts occur when balance exceeds the pool’s threshold—commonly 0.01 ZEC—and are sent directly to the configured wallet address without intermediate exchanges.

Monitoring and Troubleshooting Common Failures

1. If the miner reports “CUDA error 700”, verify GPU compute capability compatibility—EWBF supports only devices with CC 5.2 or higher (e.g., GTX 970+, GTX 10xx series, RTX 20xx/30xx).

2. “No connection to pool” messages often stem from incorrect port numbers or DNS resolution failures—test connectivity using telnet us-east.equihash-hub.miningpoolhub.com 3000 before launching the miner.

3. Intermittent hash loss correlates with thermal throttling—monitor GPU core and memory temperatures using MSI Afterburner; sustained readings above 85°C degrade performance significantly.

4. Rejected shares frequently indicate clock instability—avoid aggressive overclocking on memory; Equihash is highly sensitive to timing errors in GDDR5/GDDR6 subsystems.

5. Log files generated by EWBF (miner.log) contain detailed timestamps, share submission results, and GPU detection status—review entries marked “REJECTED” or “TIMEOUT” for root cause analysis.

Frequently Asked Questions

Q: Does EWBF support dual-mining Zcash alongside another coin?A: No. EWBF is a single-algorithm miner built exclusively for Equihash. Dual-mining functionality requires separate software such as NBMiner or GMiner with multi-algo scheduling.

Q: Can I mine Zcash using EWBF on Linux?A: No. EWBF binaries were compiled only for Windows and depend on proprietary NVIDIA Windows driver interfaces. Linux users must rely on open-source alternatives like zecminer or lolMiner.

Q: Why does my GTX 1660 Super show lower hashrate than advertised benchmarks?A: EWBF does not fully optimize for Turing architecture memory controllers. Actual throughput depends on BIOS settings, PCIe lane allocation, and memory timing calibration—results vary even across identical models.

Q: Is it safe to use third-party EWBF builds found on GitHub?A: Not guaranteed. Many forks include hidden wallets or telemetry. Only use binaries verified against original developer signatures or reproducible builds confirmed by independent auditors.