How to set up T-Rex Miner for Nvidia GPUs?

T-Rex Miner is a powerful, lightweight mining tool optimized for Nvidia GPUs, supporting algorithms like Ethash and KawPow for efficient cryptocurrency mining.

Aug 10, 2025 at 12:07 am

Understanding T-Rex Miner and Its Compatibility with Nvidia GPUs

T-Rex Miner is a high-performance mining software designed specifically for Nvidia GPUs, offering optimized hash rates and low developer fees. It supports multiple mining algorithms such as Ethash, KawPow, and RandomX, making it ideal for mining Ethereum Classic, Ravencoin, and other GPU-mineable cryptocurrencies. The miner is command-line based, lightweight, and known for its efficient memory overclocking and power usage. Before setting up T-Rex Miner, ensure your system runs a compatible Nvidia driver version—ideally 470.xx or higher. Older drivers may cause instability or reduced performance. The miner works on both Windows and Linux, though this guide focuses on the Windows setup.

Downloading and Installing T-Rex Miner

To begin, visit the official GitHub repository or the developer’s website to download the latest version of T-Rex Miner. Avoid third-party sources to prevent malware. The download is a ZIP archive containing the executable file and configuration examples. Extract the contents to a dedicated folder, such as C:\T-Rex. After extraction, locate the t-rex.exe file. This is the core executable that runs the miner. No formal installation is required—T-Rex operates as a standalone application. Ensure your antivirus software does not flag or quarantine the file, as some miners are falsely detected as threats. You may need to add an exception in your antivirus settings.

Configuring the Mining Parameters

T-Rex Miner uses a batch file (.bat) to launch with specific parameters. Create a new text file in the T-Rex folder and rename it to mine_ethereum_classic.bat (or any name ending in .bat). Right-click the file and choose Edit to open it in Notepad. Inside, you will define the connection details and GPU settings. A basic configuration for Ethereum Classic on a mining pool includes:

• -a ethash: Specifies the mining algorithm used by Ethereum Classic.
• -o stratum+tcp://etc-us-east1.nanopool.org:14444: Sets the pool address and port.
• -u YOUR_WALLET_ADDRESS: Replace this with your actual ETC wallet address.
• -p x: Authentication password, often set to "x" for nanopool.
• --gpu-init-mode 1: Ensures proper GPU initialization.
• --pl 70: Sets power limit to 70% for energy efficiency.
• --lock-cclock 1200 --mclock 1000: Applies core and memory clock offsets.

Each parameter must be on the same line, separated by spaces. Example:

t-rex.exe -a ethash -o stratum+tcp://etc-us-east1.nanopool.org:14444 -u YOUR_ETC_WALLET.rig1 -p x --gpu-init-mode 1 --pl 70 --lock-cclock 1200 --mclock 1000

Save the file and close Notepad.

Optimizing GPU Settings for Maximum Performance

To maximize hash rate and stability, GPU overclocking is essential. Use MSI Afterburner or Nvidia Inspector to adjust core clock, memory clock, and power limit before launching T-Rex. Open MSI Afterburner and set the following:

• Power Limit: Slide to 70–80% to balance performance and heat.
• Core Clock: Reduce by 50–100 MHz to improve stability.
• Memory Clock: Increase incrementally by 200–500 MHz while monitoring for artifacts.

Launch a mining session and observe the output in the command window. Look for high rejected shares or crashes, which indicate unstable settings. Adjust memory clock downward if errors occur. T-Rex displays real-time hash rate, temperature, and fan speed. Ensure GPU temperature stays below 75°C under load. Use --fan 70 in the batch file to set fan speed to 70% if cooling is insufficient.

Launching and Monitoring the Mining Process

Double-click the .bat file to start mining. A command prompt window will appear, showing connection status, accepted shares, and current hash rate. Wait 30–60 seconds for the miner to connect to the pool. Successful connection displays messages like "GPU #0: Accepted share". If connection fails, verify the pool address, wallet, and internet connection. You can minimize the window, but do not close it. To stop mining, press Ctrl+C in the window and confirm shutdown. For continuous operation, consider adding the batch file to Windows Startup or running it on a dedicated rig with remote access.

Troubleshooting Common Setup Issues

If T-Rex fails to detect your Nvidia GPU, ensure the GPU is properly seated and drivers are up to date. Reinstall Nvidia drivers using DDU (Display Driver Uninstaller) in safe mode if necessary. If the miner crashes immediately, disable TDR (Timeout Detection and Recovery) via registry edit:

• Open regedit.
• Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers.
• Create a DWORD (32-bit) Value named TdrLevel.
• Set its value to 0.
• Reboot the system.

If the pool rejects all shares, double-check the wallet address and worker name. Some pools require a worker name after the wallet, separated by a dot. Use -w rig1 or append .rig1 to the wallet in the -u field. If hash rate is lower than expected, test different memory clock values and use --kernel 1 or --kernel 4 to switch compute kernels for better performance on certain algorithms.

Frequently Asked Questions

Q: Can I use T-Rex Miner with multiple Nvidia GPUs on one rig?

Yes. T-Rex automatically detects all supported Nvidia GPUs in the system. No additional configuration is needed to utilize multiple cards. Ensure your power supply and PCIe slots can handle the load.

Q: Is it necessary to create a separate wallet for mining Ethereum Classic?

Yes. You must have a valid ETC wallet address to receive payouts. Use wallets like Trust Wallet, MetaMask (for ETC), or official ETC clients. Mining pools send rewards to the provided address.

Q: How do I update T-Rex Miner to the latest version?

Download the newest release from the official site, extract the files, and replace the old t-rex.exe with the new one. Keep your .bat configuration file—it remains compatible.

Q: Why does my antivirus delete t-rex.exe upon extraction?

Many antivirus programs flag mining software as potentially unwanted. Disable real-time protection temporarily during extraction, then add the T-Rex folder to antivirus exclusions before re-enabling protection.