T-Rex Miner Solo Mining: NVIDIA GPU Setup & Optimization

Here’s the thing: T-Rex is probably the most powerful miner for NVIDIA GPUs right now, and setting it up for solo mining is way easier than most people think. I remember when I first tried configuring T-Rex for solo mining — I spent like three hours watching YouTube tutorials that barely explained anything. So I’m writing this guide the way I wish someone had explained it to me.

Real talk: Solo mining with T-Rex on NVIDIA cards isn’t going to make you rich overnight, but it’s honestly the most fun way to learn about cryptocurrency mining. Plus, that feeling when you actually find a block? Dude, it’s unreal.

Why T-Rex Miner Works Best for NVIDIA Solo Mining

T-Rex supports basically every algorithm that NVIDIA GPUs are good at — KAWPOW, Ethash/Etchash, Autolykos, and a bunch more. But here’s what makes it actually worth using for solo mining:

• Built-in web monitoring interface that shows your hashrate without needing extra software
• Super detailed error reporting (saved me so many times when my config was messed up)
• Active development — the developer actually responds on GitHub and releases updates regularly
• Lower dev fee than most alternatives (1% on most algorithms)

The cool part is that T-Rex handles difficulty adjustments really smoothly. When you’re solo mining, your software needs to handle difficulty changes efficiently, and T-Rex does this better than a lot of other miners I’ve tested.

Something important though: T-Rex only works on NVIDIA cards. If you have AMD cards, you’ll need a different miner. Also, it’s closed-source software with a dev fee, which some people don’t like. But in most cases, the performance gains make up for the 1% fee.

Step 1: Download and Install T-Rex Miner for NVIDIA

First up, you need to grab T-Rex from the official GitHub releases page. Don’t download it from random websites — I’ve heard of people getting malware-infected versions that stole their mining rewards.

Head to github.com/trexminer/T-Rex and look for the latest release. Download the version for your operating system (Windows or Linux). The file will be a .zip archive.

Extract it somewhere you can easily find it. I keep mine in C:Miningtrex on Windows. Your antivirus will probably freak out and flag T-Rex as a virus — that’s normal for mining software because it uses your GPU intensively. You’ll need to add an exception for the folder.

Before running anything, make sure your NVIDIA drivers are up to date. Seriously, this matters more than people think. Open GeForce Experience or download the latest drivers from nvidia.com. Old drivers can cause weird stability issues or lower hashrates.

One more thing: T-Rex needs Microsoft Visual C++ Redistributable installed on Windows. Most computers already have this, but if T-Rex won’t start, download it from Microsoft’s website.

Step 2: Set Up Your Wallet and Full Node

Here’s where solo mining gets different from pool mining. You can’t just point T-Rex at a pool address and call it a day. You need somewhere to receive your block reward if you find a block.

First, decide which coin you’re solo mining. For NVIDIA cards, good options include:

• Ravencoin (KAWPOW algorithm) — one of the most realistic coins to solo mine
• Ergo (Autolykos algorithm) — lower network hashrate means better odds
• Ethereum Classic (Etchash) — higher difficulty but bigger rewards
• Flux (Equihash variant) — solid option for older cards

Download the official wallet for your chosen coin. Install it and let it sync completely — this can take hours or even days depending on the blockchain size. You need a full node running for solo mining to work properly.

Create a new receiving address in your wallet. Copy it somewhere safe — you’ll need it for your T-Rex configuration.

Now you need to enable RPC access on your wallet. This lets T-Rex communicate with your node. Open the wallet’s configuration file (usually in AppData or .local folders) and add these lines:

For Ravencoin (raven.conf):
server=1
rpcuser=yourusername
rpcpassword=yourpassword
rpcallowip=127.0.0.1
rpcport=8766

The username and password can be anything you want — they’re just for local authentication. Different coins use different default RPC ports, so check your coin’s documentation.

Step 3: Configure T-Rex Miner for Solo Mining

Alright, this is where it gets real. Open the T-Rex folder and create a new batch file (on Windows) or shell script (on Linux). I call mine “solo-mine.bat”.

Here’s a basic configuration for solo mining Ravencoin with T-Rex:

solo-mine.bat:
t-rex.exe -a kawpow -o http://127.0.0.1:8766 -u yourusername -p yourpassword –url-pwd yourpassword –wallet YOUR_RVN_ADDRESS –no-watchdog

Let me break down what each parameter does:

• -a kawpow: The algorithm you’re mining (change this based on your coin)
• -o http://127.0.0.1:8766: Your local node’s RPC address and port
• -u yourusername: RPC username from your config file
• -p yourpassword: RPC password
• –wallet YOUR_RVN_ADDRESS: Where the block reward goes if you find one
• –no-watchdog: Disables automatic restarts (optional, but I like controlling restarts manually)

For Ergo solo mining, the config looks slightly different:

ergo-solo.bat:
t-rex.exe -a autolykos2 -o http://127.0.0.1:9053 -u YOUR_ERGO_ADDRESS -p x –no-watchdog

Ergo’s node works a bit differently — you put your wallet address in the username field and “x” as the password.

Save your batch file and double-click it to start mining. T-Rex will open a command window showing your hashrate, accepted shares, and any errors.

Step 4: Optimize Your NVIDIA GPU Settings

Out of the box, your GPU probably isn’t running at its best efficiency. Here’s how I tune my NVIDIA cards for solo mining — and these settings actually make a difference.

Download MSI Afterburner (even if you don’t have an MSI card — it works with all brands). This lets you adjust core clock, memory clock, power limit, and fan speed.

Start with conservative settings and test stability before pushing harder. For KAWPOW mining on something like an RTX 3070:

• Power Limit: 70-80% (reduces heat and electricity cost)
• Core Clock: +100 to +150 MHz
• Memory Clock: +1000 to +1500 MHz (KAWPOW loves memory speed)
• Fan Speed: Auto or 60-70% (keep GPU under 70°C)

For Autolykos (Ergo), memory matters even more:

• Power Limit: 70-75%
• Core Clock: -200 to -100 MHz (yes, negative — Autolykos doesn’t need core speed)
• Memory Clock: +1200 to +1800 MHz
• Fan Speed: 65-75%

Apply your settings and monitor your hashrate in T-Rex’s web interface (usually at http://127.0.0.1:4067 — the miner will show the URL when it starts). If you see invalid shares or crashes, dial back your overclock.

Real talk: Every GPU is different. My RTX 3060 Ti handles +1400 on memory just fine, but my friend’s identical card crashes at +1300. Silicon lottery is a real thing.

Step 5: Monitor Performance and Troubleshoot Issues

T-Rex has this really good web monitoring interface that I check constantly when solo mining. Open a browser and go to http://127.0.0.1:4067 (or whatever port T-Rex tells you it’s using).

You’ll see:

• Current hashrate for each GPU
• Temperature and fan speed
• Accepted and rejected shares
• Uptime and efficiency stats

When solo mining, you want zero rejected shares. Even one rejected share could mean you lost a block. If you’re seeing rejects, it usually means:

• Your overclock is unstable (most common issue)
• Your node isn’t fully synced
• Network latency between T-Rex and your node (shouldn’t happen on localhost)

Something I learned the hard way: Temperature matters more for stability than raw hashrate. I used to push my cards to 75°C trying to squeeze out every last MH/s, but I’d get random crashes every few hours. Now I keep them at 65°C and they run stable for weeks.

Check your wallet node regularly to make sure it’s still syncing. Sometimes nodes stop updating and you won’t realize it until you’ve been mining on an outdated chain for hours. Your wallet should show the latest block height — compare it to a block explorer to confirm.

Expected Hashrates and Solo Mining Reality Check

Let’s talk numbers, because this is where a lot of people get disappointed if they don’t know what to expect.

Here are realistic hashrates for popular NVIDIA cards on KAWPOW (Ravencoin):

• RTX 4090: ~60 MH/s (280W)
• RTX 4080: ~50 MH/s (240W)
• RTX 3090: ~48 MH/s (300W)
• RTX 3080: ~45 MH/s (280W)
• RTX 3070: ~30 MH/s (180W)
• RTX 3060 Ti: ~28 MH/s (160W)
• RTX 2026 Super: ~25 MH/s (170W)

For Autolykos (Ergo), the numbers are different:

• RTX 4090: ~260 MH/s (280W)
• RTX 3090: ~170 MH/s (250W)
• RTX 3080: ~160 MH/s (230W)
• RTX 3070: ~115 MH/s (140W)
• RTX 3060 Ti: ~110 MH/s (130W)

Now for the reality check about solo mining odds. Ravencoin network hashrate is around 12 TH/s as I’m writing this. If you’re running a single RTX 3070 at 30 MH/s, you have about a 0.00025% chance of finding each block. That sounds terrible, but blocks come every minute, so over a month you’d expect to find maybe 1-2 blocks if you’re lucky.

Ravencoin block reward is currently 2,500 RVN per block. At current prices (around $0.005647 per RVN), that’s roughly $15-20 per block. Your electricity cost for running a 3070 at 180W for a month is about $30-50 depending on your rates.

Honestly? The math doesn’t look wonderful for a single card. But that’s not really why most of us solo mine anyway.

Ergo has lower network hashrate (around 15 TH/s), so your odds are slightly better. The block reward is 66 ERG, currently worth around $0.3479 each — so about $150-200 per block. Better reward, but also longer block time (2 minutes).

Advanced T-Rex Solo Mining Optimizations

Once you’ve got the basics working, there are some extra tweaks that can improve your solo mining experience with T-Rex on NVIDIA cards.

Enable Intensity Settings:

T-Rex has an intensity parameter that controls how hard it pushes your GPU. Add –intensity 21 to your batch file (values from 1-25, higher = more aggressive). I run intensity 22 on my dedicated mining rig, but 20 on my gaming PC so it stays responsive.

Lock Core Clock for Better Efficiency:

Instead of using power limit, you can lock your core clock to a specific frequency for more consistent performance. In MSI Afterburner, press Ctrl+F to open the voltage/frequency curve. Find your target frequency (like 1500 MHz) and drag it up slightly, then click the checkmark. This gives you more predictable power draw.

Optimize Virtual Memory (Windows):

T-Rex needs sufficient virtual memory, especially if you’re running multiple GPUs. Set your Windows page file to at least 16GB per GPU. Right-click This PC → Properties → Advanced System Settings → Performance Settings → Advanced → Virtual Memory → Change. I set mine to 32GB fixed size on my SSD.

Use T-Rex’s Built-in Overclocking:

You can actually control some GPU settings directly from T-Rex config, which is useful for Linux setups. Add these parameters:

–pl 70 (power limit 70%)
–cclock 100 (core clock +100 MHz)
–mclock 1200 (memory clock +1200 MHz)
–fan 65 (fan speed 65%)

Personally, I still prefer Afterburner on Windows because the GUI makes testing easier, but the command-line options are super useful for headless mining rigs.

Configure Failover Nodes:

If your local node crashes or gets stuck, you can configure T-Rex to automatically switch to a backup. This is pretty advanced, but you can add –url stratum+tcp://backup-pool-address as a fallback. I actually keep a pool URL as backup — if my node dies, T-Rex switches to pool mining automatically until I fix it. Not pure solo mining, but better than sitting idle.

Calculating Your Real Solo Mining Probability

Let’s do some actual math on your chances of finding blocks. Understanding the probability helps manage expectations — solo mining is gambling, but educated gambling.

The formula is pretty straightforward:
Your Hashrate ÷ Network Hashrate × Blocks Per Day = Expected Blocks Per Day

Example with RTX 3070 on Ravencoin:
30 MH/s ÷ 12,000,000 MH/s × 1,440 blocks = 0.0036 blocks per day
Or about 1 block every 278 days

That naturally depends on network difficulty staying constant, which it won’t. Network hashrate fluctuates based on profitability, which changes as coin prices move.

For better odds, you’d need either:

• More GPUs (6x RTX 3070 = 1 block every 46 days on average)
• Lower difficulty coins (Ergo, smaller altcoins)
• Getting incredibly lucky (hey, someone has to find blocks, right?)

I totally understand if these odds sound discouraging. But here’s how I think about it: I was going to be learning about mining anyway, and running my GPU for fun. Solo mining makes it exciting. Plus, there’s always that chance.

Real talk though: If you’re purely trying to make money, pool mining with regular payouts makes way more sense. Solo mining is for people who enjoy the thrill of potentially hitting a big payout and don’t mind going months without rewards.

Common T-Rex Solo Mining Problems and Fixes

Problem: T-Rex starts but shows 0 hashrate
Usually means your GPU drivers are outdated or incompatible. Update to the latest NVIDIA drivers. Also check if another mining program is already using the GPU — only one miner can control a GPU at a time.

Problem: “Cannot connect to RPC” error
Your wallet node either isn’t running, hasn’t finished syncing, or RPC isn’t configured correctly. Double-check your raven.conf (or equivalent) has server=1 and the correct RPC port. Restart your wallet after making config changes.

Problem: Hashrate drops after a few minutes
Almost always thermal throttling. Your GPU is hitting temperature limits (usually 83°C on NVIDIA cards) and automatically reducing clock speeds. Improve cooling — increase fan speed, improve case airflow, or reduce power limit.

Problem: High rejected share rate
First, check if your overclock is stable. If that’s not it, your node might be struggling to keep up. Some coins with fast block times need a decent CPU to run the node properly. Also, make sure you’re not running other heavy programs that could cause latency.

Problem: GPU crashes or driver resets
Overclock is too aggressive. Dial back your memory clock by 100-200 MHz and test again. If crashes continue, try reducing power limit. In most cases, crashes are memory overclock — the core clock is usually more forgiving.

Problem: “Insufficient virtual memory” error
Increase your Windows page file size. T-Rex needs a lot of virtual memory, especially with multiple GPUs. Set it to at least 16GB per card.

Problem: Lower hashrate than expected
Check if your GPU is actually running at full power. Use GPU-Z to monitor clock speeds and power draw. Sometimes NVIDIA cards get stuck in P2 power state instead of P0. Disable “Link State Power Management” in Windows power options.

Is Solo Mining with T-Rex and NVIDIA Worth It?

Let me be completely honest about this. From a pure profit perspective? Probably not, at least not with a single GPU.

If you have one or two NVIDIA cards and you’re paying normal electricity rates (like $0.12-0.15 per kWh), you’ll spend more on power than you’ll statistically earn from solo mining most coins. The expected value over time is usually lower than just pool mining with consistent payouts.

But here’s what makes solo mining with T-Rex actually worthwhile:

You learn WAY more about how mining really works. Setting up a full node, configuring RPC, understanding difficulty and block rewards — this stuff teaches you more than pool mining ever will. When I started solo mining, I finally understood what a nonce actually is and why finding a block is basically a lottery.

The excitement factor is real. Pool mining is boring. You get tiny payments every day and it feels like watching paint dry. Solo mining? Every time you hear your PC working hard, you’re thinking “maybe this is the one.” That feeling when you actually find a block makes the whole thing worth it.

It’s the purest form of mining. You’re supporting the network directly, validating transactions yourself, and if you find a block, it’s 100% yours. No pool fees, no payout delays, no trusting third parties with your hashrate.

Something I would NOT recommend: Don’t solo mine Bitcoin or Ethereum with GPUs. The network hashrate is so insanely high that your odds are basically zero. Stick to smaller coins where you have at least a mathematical chance.

Alternative Coins for T-Rex Solo Mining on NVIDIA

Besides Ravencoin and Ergo, there are other coins worth considering for solo mining with T-Rex on NVIDIA cards:

Ethereum Classic (ETC) — Uses Etchash algorithm. Higher difficulty than Ergo, but the block reward is currently worth around price unavailable per block (about 2.56 ETC reward). Network hashrate is around 140 TH/s, so you’d need serious GPU power for realistic odds. But if you believe in ETC long-term, finding even one block could be valuable years from now.

Neoxa (NEOX) — Another KAWPOW coin with much lower network hashrate than Ravencoin. Better odds for solo miners, but also lower liquidity and coin value. Good for testing your setup without competing against huge farms.

Clore (CLORE) — KAWPOW algorithm, designed for decentralized computing. Network hashrate fluctuates a lot, which can create opportunities for solo miners when difficulty drops.

The cool part about T-Rex is that switching between coins just means changing the algorithm parameter and RPC address. You can test different coins to see which one feels right for your setup and risk tolerance.

Frequently Asked Questions

Can I solo mine with T-Rex using just one NVIDIA GPU?

Yes, you absolutely can, but your odds of finding blocks are pretty low depending on the coin. A single RTX 3070 might find a Ravencoin block every 6-9 months on average, or an Ergo block every 4-6 months. It’s totally possible — I know someone who found an Ergo block with just one 3060 Ti after three weeks of mining. But be realistic: you might also mine for a year and find nothing. If you’re okay with that uncertainty and just enjoy the process, go for it. If you need consistent income, stick to pool mining.

How much electricity does solo mining with T-Rex really cost?

It depends on your GPU and electricity rate, but let’s use real numbers. An RTX 3070 running at 180W for solo mining uses about 4.3 kWh per day, or 130 kWh per month. At $0.12 per kWh (average US rate), that’s roughly $15.60 monthly. If you’re paying European rates like $0.30 per kWh, it jumps to $39 per month. An RTX 3090 pulling 280W would cost about $24/month at $0.12 per kWh. Run the math for your specific setup before committing to 24/7 mining. My honest advice: If your electricity costs more than $0.20 per kWh, solo mining probably doesn’t make financial sense unless you’re doing it purely for fun.

Why does T-Rex show higher hashrate than I get on pools?

T-Rex displays your local hashrate — what your GPU is actually calculating. Pool hashrate is calculated based on how many valid shares you submit, which varies due to luck and network latency. Your local hashrate should be consistent, while pool-reported hashrate fluctuates. When solo mining, only your local hashrate matters since you’re mining directly to your node. If T-Rex shows stable hashrate but you’re getting rejected shares, that’s a different problem — usually overclock instability or node sync issues. The displayed hashrate in T-Rex is generally accurate within 1-2% for NVIDIA cards.

Should I run T-Rex on Windows or Linux for solo mining?

Both work fine, honestly. I use Windows because it’s easier for beginners and MSI Afterburner makes GPU tuning super simple. But Linux (usually Ubuntu or HiveOS) can be slightly more efficient — you might get 2-3% better hashrate because there’s less OS overhead. Linux also handles multiple GPUs better and is more stable for 24/7 mining. If you’re comfortable with command-line stuff, go with Linux. If you’re just starting out and want a GUI for everything, Windows is totally okay. The difference in performance isn’t huge enough to stress about.

What happens if I find a block but my node crashes right after?

This is actually one of the scarier scenarios, but the good news is you probably won’t lose your block. When T-Rex finds a valid solution, it submits it to your node, which then broadcasts it to the network immediately. As long as the network receives and confirms your block before another miner finds the same block height, you’re good — even if your node crashes seconds later. The block is already on the blockchain and the reward will appear in your wallet once you restart your node and it syncs. The only way you’d lose a found block is if another miner submits a valid block at the same height faster than your node can broadcast yours, resulting in an orphan block. That’s pretty rare on most networks though.