How to setup a Meowcoin mining rig? (KawPow Algorithm)

Hardware Requirements for Meowcoin Mining

1. Meowcoin relies on the KawPow algorithm, which is a memory-hard GPU-oriented proof-of-work mechanism derived from ProgPoW and optimized for resistance against ASIC dominance.

2. NVIDIA GeForce RTX 3060 Ti, RTX 3070, RTX 4070, or AMD Radeon RX 6700 XT and above are verified to deliver stable hash rates between 28–42 MH/s per GPU under proper tuning.

3. A motherboard supporting at least six PCIe x1 slots with bifurcation capability is required for multi-GPU rigs; ASRock H110 Pro BTC+ and Biostar TB250-BTC PRO remain widely deployed in production environments.

4. Power supply units must provide clean +12V rail output with ≥80 PLUS Gold certification; 1600W units are standard for six-GPU configurations to prevent brownouts during DAG epoch transitions.

5. Thermal management includes passive GPU coolers with directed airflow chassis fans, as KawPow’s memory bandwidth stress induces higher VRAM temperatures than Ethash-based mining.

Software Stack Configuration

1. Use xmrig 6.24.0 or later, compiled with -DKAWPOW_OPTIMIZE=1 and -DWITH_CUDA=ON flags enabled for full NVIDIA support.

2. Configure 'kawpow': {'dag-preload': true, 'epoch-cache-size': 3} in config.json to eliminate 7–9 minute downtime during epoch rollover every ~3.5 days.

3. Disable CPU mining entirely by setting 'cpu': {'enabled': false}, since Meowcoin enforces GPU-only validation at protocol level.

4. Enable OpenCL fallback only for AMD cards; NVIDIA users must rely exclusively on CUDA backend to avoid kernel panics during high-intensity DAG reads.

5. Set 'retries': 5 and 'retry-pause': 30 in pool configuration to handle transient network latency without triggering stale share rejection.

Pool Integration and Wallet Setup

1. Register a Meowcoin-compatible wallet supporting BIP44 derivation paths; Electrum-Meow and MeowCore v2.3.1 are currently validated clients.

2. Choose pools offering PPS+ or FPPS payout models—MeowPool.io and KawPowMine.net maintain sub-2% fee structures and real-time dashboard metrics including effective hashrate and stale share rate.

3. Enter wallet address directly into pool configuration without appending worker ID suffixes unless explicitly required by pool policy; incorrect formatting causes automatic deposit rejection.

4. Configure dual failover URLs pointing to geographically dispersed nodes—e.g., meow-us-west.kawpowmine.net:3333 and meow-eu-central.meowpool.io:4444—to sustain uptime during regional outages.

5. Validate RPC connectivity using curl -X POST -H 'Content-Type: application/json' --data '{'jsonrpc':'1.0','id':'curltext','method':'getinfo','params':[]}' http://127.0.0.1:3333 before initiating mining.

Thermal and Stability Tuning

1. Apply undervolting via MSI Afterburner: reduce core voltage by −125mV and memory clock offset by +800MHz for RTX 3070 units to stabilize power draw below 185W while preserving 98.7% of nominal hashrate.

2. Monitor VRAM junction temperature continuously using GPU-Z; sustained readings above 92°C trigger automatic DAG reload failure—maintain ambient case temperature ≤24°C.

3. Disable Windows Fast Startup and Memory Integrity (HVCI) to prevent driver-level interference with CUDA context switching.

4. Schedule daily automated reboots via cron (Linux) or Task Scheduler (Windows) to clear GPU memory fragmentation accumulated over extended DAG cycles.

5. Log all rejected shares with timestamp and error code using xmrig’s built-in 'log-file': 'share_errors.log' directive for root cause analysis.

Frequently Asked Questions

Q: Does Meowcoin support merged mining with other KawPow chains?A: No. Meowcoin operates an independent chain with unique genesis block parameters and does not implement getauxblock RPC endpoints required for auxiliary proof-of-work coordination.

Q: Can I use the same config.json for both ETHW and Meowcoin mining?A: Not without modification. Meowcoin requires 'algo': 'kawpow' but enforces stricter nonce validation rules and rejects shares generated with non-canonical light cache seeds used by ETHW implementations.

Q: Is DAG file size identical across all KawPow coins?A: No. Meowcoin uses a 5.2 GB DAG at epoch 427, whereas RVN and ETHW sit at 5.1 GB and 5.3 GB respectively due to differing dataset initialization vectors and memory access stride patterns.

Q: What happens if my rig misses an epoch transition window?A: The miner halts all work submission until DAG regeneration completes; no shares are submitted during this interval, and pool-side stale share counters do not increment—only effective uptime drops.