T-Rex miner – a detailed review and setup for NVIDIA (download, config, overclock, errors)

T-Rex miner — подробный обзор и настройка майнера для NVIDIA (скачать, конфиг, разгон, ошибки)

T-Rex miner is one of the most popular miners for NVIDIA graphics cards. We’ll discuss where to safely download T-Rex, how to set up the miner for ETHW, ETC, RVN, ERG, and other coins, how to create a configuration file, enable dual mining, and troubleshoot common errors.

1. What is a T-Rex miner?

T-Rex is a closed console miner for NVIDIA graphics cards (CUDA), focused on maximum speed, stability, and ease of setup.

According to the official website and GitHub repository, T-Rex

works on Windows and Linux ;
supports modern NVIDIA graphics cards from the GTX 900 (Maxwell) series to RTX 40xx;
can mine dozens of algorithms (Ethash, Etchash, KawPow, Octopus, Autolykos2, Blake3, Firopow, etc.);
has a development fee of 1% (and 2% for Octopus, Autolykos2 and dual-modes with them ).

At the time of writing, the most current version from the official website is T-Rex 0.26.8 for Windows and Linux.

T-Rex miner – a detailed review and setup for NVIDIA (download, configuration, overclocking, errors)

2. Main advantages of the T-Rex miner

Why T-Rex remains one of the de facto standards among NVIDIA miners:

High performance
The developers are actively optimizing the core for popular algorithms—Ethash/Etchash, KawPow, Autolykos2, Octopus, and others.
A low dev fee of
1% for most algorithms and 2% for Octopus/Autolykos2 means less than 15 minutes of mining per day for the benefit of developers.
Support for a wide range of algorithms and coins.
You can quickly switch between coins without changing the miner: ETHW, ETC, RVN, ERG, CFX, FIRO, ALPH, VBK, and many others.
Web Panel and HTTP API
T-Rex has a built-in web interface and an extended HTTP API for monitoring and control via a browser or your own scripts.
Dual mining and LHR card support
The miner can unlock LHR cards and run dual mining (for example, ETHW/ETC + ALPH, ETHW + ERG, ETHW + CFX, etc.).
Watchdog, auto-update, and scripts
The built-in watchdog restarts the miner when it freezes. Auto-update and the launch of user scripts based on events (start, crash, epoch change, etc.) are supported.

3. Algorithms and coins that are easy to mine in T-Rex

Below are the most popular algorithm/coin pairings that are frequently used in 2024–2025:

Algorithm	Coins (examples)
ethash	EthereumPoW (ETHW), Proof-of-Memes и др.
etchash	Ethereum Classic (ETC)
kawpow	Ravencoin (RVN), POM (part of coins)
autolykos2	Ergo (ERG)
blake3	Alephium (ALPH)
firopow	Firo (FIRO)
mtp / mtp-tcr	Old Firo, Tecra (TCR)
octopus	Conflux (CFX)
progpow / progpow-veil / progpow-veriblock / progpowz	SERO, Veil, VeriBlock et al.
plus dozens of “exotic” X- and Lyra-algorithms	(x16r/x16rv2, lyra2z, bitcore, tribus, skunk, etc.)

For a beginner, this is usually enough: ETHW/ETC as the “base” Ethash/Etchash coins and RVN, ERG, CFX, FIRO, ALPH as popular alternatives.

4. System requirements and hardware

Supported GPUs

According to the documentation, T-Rex works with modern NVIDIA graphics cards:

Maxwell architecture and newer : GTX 9xx, 10xx, 16xx, RTX 20xx, 30xx, 40xx;
Old cards are possible if there is enough video memory for DAG / dataset.

Important: T-Rex does not support AMD – only NVIDIA with CUDA-compatible drivers installed.

Minimum requirements

OS: Windows 10/11 , or modern Linux (Ubuntu, HiveOS, RaveOS, etc.);
NVIDIA driver is usually not lower than 450+ , for new RTX 30/40 – the latest branches are better (520+ and higher);
enough CPU and RAM to service the rig;
virtual memory (swap) for DAG – at least a couple of gigabytes for each GPU (especially for Windows).

5. Where can I safely download T-Rex miner?

To avoid getting a virus, download the miner exclusively from official resources :

Official website:
trex-miner.com — the latest builds of T-Rex 0.26.8 for Windows and Linux are available here, along with a SHA-256 checksum to verify archive integrity.
Official GitHub:
github.com/trexminer/T-Rex — the Releases section contains links to the same Windows/Linux archives.
Large aggregators/reviews (you can also check the version): Kryptex / miner.download / miningsoft.org, etc. – they often link back to GitHub.

Antivirus and false positives

Miners are almost always detected as “Trojan” or “Riskware.” This is normal for software that uses a GPU for computation. The main thing is to check file hashes against the official website and not download T-Rex from dubious archives.

6. Installing and running T-Rex miner on Windows

Download the archive t-rex-0.26.8-win.zipfrom the official website or GitHub.
Unzip to a convenient folder (for example, C:\mining\t-rex\).
Inside the folder, create a text file, rename it to start-coin.bat.
Inside .batthe file, add the example command (below) and substitute your values.
.batDouble-click to run as administrator (for some overclocking options to work).

Example .bat for Ethereum Classic (ETC, Etchash algorithm)

t-rex.exe -a etchash ^
  -o stratum+tcp://POOL_ADDRESS:PORT ^
  -u WALLET_ADDRESS.RIG_NAME ^
  -p x ^
  --coin etc
pause

POOL_ADDRESS:PORT— ETC pool address (for example, from the pool website).
WALLET_ADDRESS— your ETC wallet.
RIG_NAME— the name Riga (Latin, without spaces).

7. Installing and running T-Rex miner on Linux

Download the archive t-rex-0.26.8-linux.tar.gz.
Unzip:

tar -xvf t-rex-0.26.8-linux.tar.gz
cd t-rex-0.26.8

Create a startup script:

nano start-coin.sh

Example content ( start-coin.sh):

#!/bin/bash
./t-rex -a kawpow \
  -o stratum+tcp://POOL_ADDRESS:PORT \
  -u WALLET_ADDRESS.RIG_NAME \
  -p x \
  --coin rvn

Make the file executable and run:

chmod +x start-coin.sh
./start-coin.sh

8. Basic T-Rex command line parameters

The list of basic parameters is in the README on GitHub and in the help t-rex --help:

The most commonly used in config/batch files are:

-a, --algo— algorithm (for example, ethash, etchash, kawpow, autolykos2, blake3, firopow, octopusetc.).
-o, --url— URL pool ( stratum+tcp://host:port).
-u, --user— wallet address or pool login.
-p, --pass— password (usually x).
-w, --worker— the name Riga.
--coin— coin name (e.g., etc, ethw, eth+zil, etc+zil) — helps to avoid unnecessary re-creation of the DAG.
-d, --devices— list of GPUs separated by commas ( 0,1,2).
-i, --intensity— intensity (8–25, default auto).
--lhr-tune— setting up LHR card unlocking.
--lock-cclock, --mclock, --pl— overclocking/downvoltage settings via the miner itself.
--config/ -c— loading a JSON config instead of command line parameters.
--log-path— path to the log file.
--api-bind-http, --api-key— API/WebUI parameters.
--autoupdate— allow auto-update.

9. Configuring T-Rex via config.json (JSON-config)

Instead of a dozen parameters in a .bat file, it’s more convenient to use a JSON config . T-Rex can be launched with the command:

t-rex -c config.json

This is described in the official JSON config reference and T-Rex manuals.

Example `config.json`for ETC (Etchash) mining

{
  "algo": "etchash",
  "coin": "etc",
  "url": "stratum+tcp://POOL_ADDRESS:35000",
  "user": "WALLET_ADDRESS.RIG_NAME",
  "pass": "x",
  "worker": "RIG_NAME",
  "intensity": 22,
  "devices": "0,1,2,3",
  "log-path": "logs/trex-etc.log",
  "api-bind-http": "127.0.0.1:4067",
  "temperature-limit": 70,
  "temperature-start": 50,
  "watchdog": true
}

All you need is:

replace POOL_ADDRESS:35000with pool address;
indicate your wallet and rig name;
intensityAdjust temperature limit and GPU list if necessary .

10. WebUI и HTTP API T-Rex miner

T-Rex has a built-in web panel that works via HTTP API.

By default, the WebUI is available at:

http://127.0.0.1:4067/— from a browser on the same PC where the miner is launched.

Through the WebUI you can:

view the hashrate for each card;
see temperature, consumption, fans;
change some parameters “on the fly”;
Run the update and view the log.

To open the WebUI from another device on the local network, use the parameter:

--api-bind-http 192.168.0.100:4067

(Replace the IP with your rig’s address.) The API is described in detail in the T-Rex wiki and help file.

11. Overclocking and power efficiency in T-Rex

T-Rex allows you to control overclocking directly from the miner (especially convenient for Linux mining distributions).

Main “overclocking” parameters:

--mt— Memory tweak (0–6) for Pascal cards with GDDR5/GDDR5X. Requires administrator rights.
--lock-cclock— records the core frequency (in MHz).
--cclock— sets the core frequency.
--mclock— sets the memory frequency.
--pl— power limit (in % for Windows, in watts for Linux).
--temperature-limit, --temperature-start– overheating protection (stop and autostart of mining based on temperature).

Recommendation:

First, find stable overclocking values in MSI Afterburner / nvidia-settings.
Then transfer them to the T-Rex parameters so that the rig always returns to the desired settings when restarting.
Don’t try to squeeze out the maximum – stable shares are more important than pretty numbers in the miner window.

12. LHR maps and dual mining in T-Rex

T-Rex was one of the first miners to implement a partial and then almost complete unlock of NVIDIA LHR cards for Ethash/Etchash and Autolykos2.

Key features:

This parameter --lhr-tuneallows you to set a percentage of the “full” hashrate;
There are low power and full unlock modes that balance power consumption and speed;
Dual mining is supported —simultaneous mining of two coins/algorithms, for example:
- ETHW/ETC + ALPH (Ethash/Etchash + Blake3),
- ETHW + ERG (Ethash + Autolykos2),
- ETHW + CFX (Ethash + Octopus),
- ETHW + RVN/FIRO (Ethash + KawPow/Firopow).

Example of a dual mining command (ETHW + ALPH – general form):

t-rex.exe -a ethash --dual-algo blake3 ^
  -o stratum+tcp://POOL_ETHW:PORT ^
  -u ETHW_WALLET.RIG_NAME -p x ^
  --url2 stratum+tcp://POOL_ALPH:PORT ^
  --user2 ALPH_WALLET.RIG_NAME --pass2 x

13. Typical T-Rex errors and how to solve them

13.1 CAN’T FIND NONCE WITH DEVICE / CUDA_ERROR_LAUNCH_FAILED

The gist: the miner can’t find the nonce, and CUDA returns a kernel startup error. This is often discussed in GitHub issues and T-Rex guides.

Reasons:

too much core/memory overclocking;
unstable power supply (PL too low, bad power supply);
overheat.

Solutions:

reduce overclocking (start from -50…-100 MHz of memory from the current value);
raise PL slightly;
check the temperature and airflow;
Make sure the driver is up to date and free of conflicts.

13.2 OUT OF MEMORY

The gist: there is not enough video memory or virtual memory in the system for the algorithm.

Solutions:

for Windows, increase the paging file (virtual memory) to at least RAM * 216–32 GB;
close unnecessary applications that use VRAM;
For cards <6–8 GB, check whether the specific coin still supports such memory capacities (DAG grows over time).

13.3 Pool connection error / Trex connection error

Reasons:

Invalid pool address or port;
incorrect protocol ( stratum+tcp://vs stratum+ssl://);
Blocking by provider/firewall.

Solutions:

check the connection string in the batch file/config file again;
try an alternative pool port;
Disable VPN/proxy or vice versa – use VPN when pools are blocked.

14. Security and dev fees in T-Rex

Development committee

As mentioned, T-Rex charges :

1% dev fee on most algorithms;
2% dev fee for Octopus , Autolykos2 and dual modes with them.

The miner automatically switches to the “commission” pool for about 1 minute out of 100 , after which it returns to your pool.

How to make sure a miner is clean

download only from links on trex-miner.com or the official GitHub;
check the SHA-256 checksum from the Download T-Rex block on the website;
Do not use repacks from unknown forums and file sharing services.

15. Mini-FAQ for T-Rex miner (for SEO and quick response)

How do I download T-Rex miner for Windows 10/11?
Go to the official website trex-miner.comor GitHub repository trexminer/T-Rexand download the archive t-rex-0.26.8-win.zip. Check the SHA-256 hash.

How do I set up the T-Rex miner for Ethereum Classic (ETC)?
Use the algorithm etchash, specify the ETC pool, your ETC wallet, and [unclear text --coin etc]. You can configure it via .bat or config.json[unclear text] (see examples above).

Does T-Rex work with AMD cards?
No, T-Rex is a miner only for NVIDIA (CUDA). AMD cards require other miners (lolMiner, TeamRedMiner, etc.).

Can I use T-Rex with NiceHash?
Yes. The batch file simply specifies the algorithm (for example, kawpowor autolykos2), the NiceHash server URL, and your NiceHash BTC address as a login. NiceHash provides pre-built strings for T-Rex in its help section.

How do I enable the T-Rex miner WebUI?
By default, it opens in the browser http://127.0.0.1:4067/. To view from another device, add it --api-bind-http 192.168.x.x:4067to the launch settings.

What should I do if T-Rex doesn’t start/closes immediately after starting?

Run in console and look at the error text.
Check your NVIDIA driver and update it.
Remove overclocking, try running on stock.
Check that the antivirus has not deleted it t-rex.exe.

Results

T-Rex miner remains one of the most convenient and powerful miners for NVIDIA video cards :

high speed and stability;
a huge number of supported algorithms and coins;
Dual mining, LHR unlocking, user-friendly WebUI and API;
Low dev fee and active support from developers.

This article provides you with a complete foundation: from downloading and initial launches to dual mining setup, overclocking, and troubleshooting common errors. From there, all that’s left to do is choose a profitable pool and coin—and get the most out of your rig with the T-Rex miner .