How to Configure an Antminer S19j Pro for Solo Mining
Access the Antminer's web interface, point it at your personal mining pool, set your Bitcoin address as the worker name, and optionally enable Low Power mode for better efficiency.
What You Will Need
- ▸Bitmain Antminer S19j Pro (or similar ASIC miner)
- ▸Part 1 complete — your Bitcoin node and public-pool must be running
- ▸The Antminer connected to the same local network as your node (or reachable via the Pi relay from Part 3)
- ▸A computer on the same network to access the Antminer web interface
- ▸The Antminer's local IP address (check your router's device list)
Electrical Safety — Read This First
Step-by-Step Instructions
Find the Antminer's IP Address
The Antminer gets an IP address from your router via DHCP. Log into your router's admin page (usually http://192.168.0.1 or http://192.168.1.1) and look for the Antminer in the connected devices list. It will typically show up as "Antminer" or a Bitmain MAC address.
Alternatively, you can ping the hostname from a computer on the same network:
ping antminer.localReserve a Static IP for the Antminer
192.168.0.107). This prevents the IP from changing and breaking your pool configuration.Access the Antminer Web Interface
Open a web browser on any computer on the same network and navigate to the Antminer's IP address:
http://192.168.0.107Log in with the default credentials:
| Field | Default Value |
|---|---|
| Username | root |
| Password | root |
Change the Default Password
Configure the Mining Pool
Navigate to Miner Configuration → Pools. You will see three pool slots (Pool 1, Pool 2, Pool 3). Pool 1 is the primary pool — this is where your miner will send its work.
Fill in Pool 1 with your node's details:
| Field | Value | Notes |
|---|---|---|
| Pool 1 URL | stratum+tcp://192.168.0.100:3333 | Replace with your node's IP |
| Worker | YOUR_BITCOIN_ADDRESS.s19jpro | Your BTC address + a dot + a name |
| Password | x | Any value works — just use 'x' |
| Pool 2 URL | stratum+tcp://public-pool.io:21496 | Backup pool (optional) |
| Pool 2 Worker | YOUR_BITCOIN_ADDRESS.backup | Same address, different name |
Your Bitcoin Address IS Your Worker Name
Click Save & Apply when done.
Enable Low Power Mode (Recommended)
The S19j Pro's default power mode runs at ~3,250W for ~104 TH/s. Low Power mode reduces this to approximately 2,400W for ~82 TH/s — a much better efficiency ratio and significantly lower operating cost.
To enable it, navigate to Miner Configuration → Advanced (or look for a "Power Mode" or "Working Mode" option depending on your firmware version). Select Low Power and save.
| Mode | Power Draw | Hash Rate | Efficiency | Monthly Cost* |
|---|---|---|---|---|
| Normal | ~3,250W | ~104 TH/s | 31.3 J/TH | ~$234 |
| Low Power | ~2,400W | ~82 TH/s | 29.3 J/TH | ~$173 |
*At $0.10/kWh, 24/7 operation
Low Power Mode Also Runs Cooler
Restart and Verify
After saving your pool configuration, restart the Antminer from the web interface: System → Reboot. Wait 2–3 minutes for it to come back online.
Once it restarts, check the pool status under Miner Status. Pool 1 should show "Normal" within a few minutes. If it shows "Abnormal", double-check the pool URL — make sure there is no extra text in the field.
You can also verify from your node's public-pool dashboard:
http://192.168.0.100:3334Your Antminer should appear in the connected miners list with its hash rate.
Part 2 Complete!
Temperature Reference
| Reading | Normal Range | Warning | Critical |
|---|---|---|---|
| Chip temperature | 60–75°C | 80°C | 95°C+ |
| Inlet air temperature | 15–35°C | 40°C | 45°C+ |
| PCB board temperature | 50–70°C | 80°C | 90°C+ |
The Antminer will automatically throttle or shut down before reaching critical temperatures. It will not damage itself from overheating.
