TL;DR: Setting up a solo mining Alephium node is honestly one of the most straightforward full-node setups I’ve done. The Blake3 algorithm runs efficiently on GPUs, the node software is surprisingly polished, and unlike Bitcoin or Ethereum, you’re not waiting weeks to sync. This guide walks you through hardware requirements, node installation, GPU configuration, and the realistic odds of actually finding blocks. Spoiler: Alephium is one of the better solo mining targets for mid-range hashrate.
Why Run Your Own Alephium Node for Solo Mining
Here’s the thing: Most people jump straight into pool mining without understanding what they’re giving up. When you solo mine directly to your own Alephium node, you keep 100% of the block reward when you find one. No pool fees, no payout thresholds, no trusting someone else’s infrastructure.
Alephium is actually designed with solo mining in mind. The blockchain uses a sharded structure with 16 groups — basically 16 parallel chains working together. This means blocks are found roughly every 16 seconds across the network, which sounds fast, but each individual group mines at a more reasonable pace. For a solo miner, this structure creates more frequent opportunities compared to a monolithic blockchain.
The Blake3 algorithm is GPU-friendly and power-efficient. I’m running mine on a single RTX 3070, pulling around 120W, and the node itself uses maybe 10-15W. Compare that to the power draw of SHA-256 mining and you’ll see why GPU miners got interested in this project.
Trust me on this: Running your own node teaches you more about blockchain technology than any YouTube video ever will. You see the actual blocks coming in, you understand difficulty adjustments, and when you finally hit a block… dude, it’s unreal.
Hardware Requirements for Solo Mining Alephium Node
The good news is that an Alephium node doesn’t need datacenter-grade hardware. I’m running mine on a relatively modest setup and it handles everything without breaking a sweat.
Node requirements:
- CPU: Any modern quad-core processor works fine — I use a Ryzen 5 3600
- RAM: 8GB minimum, 16GB recommended (the node uses about 4-6GB)
- Storage: 100GB SSD — the blockchain is currently around 40GB but growing
- Network: Stable connection with at least 10 Mbps up/down
- Operating system: Windows, Linux, or macOS all supported
Mining hardware:
- NVIDIA GPUs: RTX 3060 Ti and up deliver solid hashrates (50-65 GH/s per card)
- AMD GPUs: RX 6700 XT and higher perform well (45-60 GH/s)
- Multiple GPU support works great — I’ve tested up to 4 cards on one node
- 8GB VRAM minimum per GPU (Blake3 doesn’t use DAG files, so no memory creep issues)
Sweet spot for Blake3 mining with 60 GH/s at 120W. Efficient, available, and proven reliable for solo mining Alephium.
The cool part is: You can run the node and mining software on the same machine, or separate them. I started with everything on one PC, then moved the node to a dedicated low-power system running 24/7 while my gaming rig only mines when I’m not using it.
For storage, don’t cheap out and use a mechanical hard drive. The blockchain database requires decent I/O performance, and an HDD will bog down sync times and cause annoying delays. A basic 500GB SATA SSD costs like $30 and makes everything run smooth.
Installing and Configuring Your Alephium Full Node
Getting the Alephium node running is surprisingly painless. I’ve set up Bitcoin Core, Monero nodes, all kinds of full nodes — this one is way more user-friendly.
Step 1: Download the Alephium full node
Head to the official Alephium GitHub releases page and grab the latest version for your OS. As of writing, version 2.x is current. The download includes both the full node and wallet interface in one package.
For Linux, you’ll get a .jar file. Windows and macOS get executable installers. No compiling from source required unless you really want to.
Step 2: Initial sync
Launch the full node software. It’ll automatically start syncing from the network. The initial sync takes maybe 2-3 hours depending on your connection — way faster than Bitcoin or Ethereum. The current blockchain size is around 40GB, so make sure you’ve got space.
During sync, the node connects to peer nodes, downloads blocks, and validates everything. Your CPU usage will spike temporarily as it verifies signatures and processes transactions. This is normal.
Step 3: Create or restore your wallet
The Alephium software includes a built-in wallet interface. Once sync is complete, you’ll create a new wallet with a 24-word seed phrase. Write this down, store it safely — it’s your backup if anything goes wrong.
Important: The wallet generates 4 addresses by default (one per group of shards). When you mine a block, the reward goes to one of these addresses depending on which group found the block. This is normal Alephium behavior.
Step 4: Configure for solo mining
Now here’s where it gets specific for solo mining. Open your user.conf file (it’s in the Alephium data directory — location varies by OS). Add these lines:
alephium.mining.api-interface = "0.0.0.0"
alephium.mining.api-port = 10973
alephium.mining.miner-addresses = ["YOUR_ALEPHIUM_ADDRESS_1", "YOUR_ALEPHIUM_ADDRESS_2", "YOUR_ALEPHIUM_ADDRESS_3", "YOUR_ALEPHIUM_ADDRESS_4"]
Replace the placeholder addresses with your actual wallet addresses. Yes, you need all 4 addresses from your wallet — one for each shard group. The node will automatically route mining rewards to the correct address based on which group finds the block.
Save the file and restart your node. It should now accept mining connections on port 10973.
GPU Mining Software Configuration for Blake3
The Alephium node is running, but it can’t mine on its own — you need mining software that connects to it. Several miners support Blake3 and Alephium specifically.
Option 1: BzMiner (my recommendation)
BzMiner handles Alephium really well and supports both NVIDIA and AMD GPUs. It’s got a small dev fee (1%), but the performance and stability make up for it. Download from the official BzMiner site.
Basic BzMiner command for solo mining:
bzminer -a alph -w YOUR_WALLET_ADDRESS -p stratum+tcp://127.0.0.1:10973 --nc 1
The --nc 1 flag is important — it tells BzMiner to connect to your local node. If you’re running the node on a different machine, replace 127.0.0.1 with that machine’s IP address.
I’ve written more about BzMiner solo mining configuration if you want advanced tuning options.
Option 2: lolMiner
Another solid choice for Alephium, especially on AMD cards. The dev fee is 0.7% for Alephium mining. Configuration is similar:
lolMiner --algo ALPH --pool 127.0.0.1:10973 --user YOUR_WALLET_ADDRESS
Option 3: SRBMiner-Multi
SRBMiner works but I found it slightly less efficient on Blake3 compared to BzMiner and lolMiner. Still, it’s an option if you’re already familiar with it from solo mining other coins.
Once your mining software connects, you should see “accepted” shares in the console output. These aren’t real shares like in pool mining — they’re just the miner reporting work to your node. When you find an actual block, you’ll see it confirmed in your node’s logs and the block reward will appear in your wallet.
Network Hashrate and Solo Mining Probability
Okay, real talk: What are your actual chances of finding a block when you’re solo mining an Alephium node?
As of writing, Alephium’s network hashrate sits around 1.2 PH/s (1,200 TH/s). That naturally depends on the current ALPH price, which is $0.0787 right now. When prices pump, more hashrate joins the network. When prices drop, some miners shut off.
The block reward is 1.25 ALPH per block (this decreases over time with halving events). With 16 groups mining in parallel, blocks are found network-wide every 16 seconds, but for any single group, it’s more like every 4-5 minutes.
Example probability calculations:
Let’s say you’re running a single RTX 3070 at 60 GH/s:
- Your hashrate: 60 GH/s = 0.00006 TH/s = 0.00000005 PH/s
- Network hashrate: 1.2 PH/s
- Your percentage: (0.00000005 / 1.2) × 100 = 0.0000042%
That’s brutal, honestly. You’d statistically find a block every… well, every several years with that hashrate. This is why most people either pool mine or don’t bother with Alephium at all.
But here’s where it gets interesting. If you’re running multiple GPUs or a small farm, the odds improve dramatically:
- 5x RTX 3070 (300 GH/s): Block roughly every 460 days
- 10x RTX 3070 (600 GH/s): Block roughly every 230 days
- 20x RTX 3070 (1.2 TH/s): Block roughly every 115 days
These are statistical averages. You might get lucky and find one in a week, or go twice the average time without hitting anything. That’s the nature of solo mining — variance is wild.
For comparison, check out my solo mining probability chart to see how Alephium stacks up against other coins.
Cost Analysis and ROI Reality Check
Let me be honest with you: Solo mining Alephium is not a get-rich-quick scheme. The electricity costs alone can make this unprofitable if you’re paying retail power rates.
A single RTX 3070 mining Blake3 pulls around 120W. Add another 15W for the node itself. That’s 135W total, or 3.24 kWh per day.
At $0.12/kWh (average US residential rate): $0.39/day or $11.70/month
At $0.25/kWh (high-cost areas): $0.81/day or $24.30/month
Now factor in that you might not find a block for months or years with a single GPU. Even if ALPH price moons, you’re burning money on electricity waiting for that block. This is the harsh reality of solo mining low hashrate on larger networks.
When does it make sense?
Solo mining your own Alephium node becomes reasonable in these scenarios:
- You’ve got cheap or free electricity (under $0.06/kWh)
- You’re running multiple GPUs (at least 5-10 cards)
- You’re mining for the learning experience, not purely profit
- You believe ALPH price will significantly increase (speculative mining)
- You’d be running the GPUs anyway for other tasks and mine during idle time
I run mine during winter when the heat offsets my heating costs. During summer, I shut down the mining and just keep the node running. That’s my compromise between hobby and electricity bills.
Something I would NOT recommend: Don’t buy new hardware specifically to solo mine Alephium unless you’ve got a serious farm (20+ GPUs) and cheap power. The breakeven timeline is too long and too uncertain.
Optimizing Your Node and Troubleshooting Common Issues
After you’ve got everything running, there are some tweaks that make the experience smoother.
Node performance tuning:
In your user.conf file, you can adjust memory allocation for the Java runtime. If you’ve got RAM to spare, increase it:
-Xmx8g
This allocates 8GB to the node process. Default is 4GB, which works fine for most people, but if you’re running on a dedicated node machine with 16GB+ RAM, give it more headroom.
GPU overclocking and undervolting:
Blake3 responds well to memory overclocks. I run my RTX 3070 at +1200 MHz memory clock with no issues. Core clock barely matters for this algorithm — you can actually underclock it to save power.
My stable settings:
- Core clock: -200 MHz
- Memory clock: +1200 MHz
- Power limit: 60% (brings it down to ~110W)
- Hashrate: Still hits 58-60 GH/s
Use MSI Afterburner or similar tools to dial this in. Every card is different, so test stability before leaving it unattended.
Common issues and fixes:
Issue: Mining software can’t connect to node
Fix: Check that your node’s API interface is set to 0.0.0.0 (not 127.0.0.1). Firewall might also be blocking port 10973 — add an exception.
Issue: Node constantly resyncing or showing wrong block height
Fix: Usually a corrupted database. Stop the node, delete the .alephium directory (backup your wallet first!), and resync from scratch. Annoying but it fixes it.
Issue: Mining software shows “accepted” shares but node logs show rejected work
Fix: Wallet addresses might be configured wrong in user.conf. Make sure you’ve got all 4 addresses from your wallet and they’re formatted correctly.
Issue: GPU hashrate dropping after a few hours
Fix: Thermal throttling or power limit kicking in. Improve cooling or increase power limit slightly. Also check that your overclock is actually stable — sometimes it takes hours for instability to show up.
Pool Mining vs Solo: When to Make the Switch
Look, I’m all about solo mining — that’s why this site exists. But I’m not going to lie to you: Pool mining Alephium often makes more financial sense if you’re running fewer than 5 GPUs.
With pool mining, you get consistent small payouts. It’s boring, but predictable. Solo mining is a lottery ticket — huge payout if you win, nothing if you don’t.
I personally solo mine because I find it more exciting and educational. When I finally hit that first Alephium block after 6 months of mining with 3 GPUs, the dopamine rush was unreal. But during those 6 months, a pool miner with the same hashrate would’ve earned steady rewards totaling about the same amount.
The math works out roughly equal over long enough timelines, minus pool fees (usually 1-2%). But variance matters. If you need regular income to cover electricity costs, pool mining is smarter. If you can afford to gamble and wait for the big score, solo mining is way more fun.
For more on this mindset, check out my article on solo mining psychology — it’s saved me from rage-quitting multiple times.
Security Considerations for Your Node
Running a full node means you’re exposing a service to the internet. Basic security steps are important.
Wallet security:
- Never share your 24-word seed phrase with anyone, ever
- Store it offline, written on paper (not on your computer)
- Consider making multiple backups stored in different locations
- Enable a strong wallet password in the Alephium interface
Node security:
- Keep your node software updated — the developers regularly push security patches
- Don’t expose unnecessary ports to the internet (only the P2P port 9973 needs to be open for peer connections)
- If running on a VPS or cloud server, use SSH keys instead of passwords
- Enable firewall rules to restrict access to the mining API port (10973) to only your local network or specific IPs
I totally screwed this up once. I left my node’s wallet API exposed to the internet with a weak password. Someone found it through a port scan and tried brute-forcing the wallet. Luckily I caught it in the logs before they got in, but it scared the hell out of me. Don’t be like me — lock down your node from day one.
More details in my solo mining security guide.
Alternative Blake3 Coins Worth Considering
Alephium isn’t the only Blake3 coin out there. If network hashrate gets too high or difficulty spikes, you might want to explore other options.
Clore.ai: Another Blake3 project that’s currently much easier to solo mine due to lower network hashrate. I’ve written a full Blake3 GPU setup guide for Clore if you want to try it.
The advantage of running an Alephium node is that you can easily switch mining software between Blake3 coins without changing your hardware setup. Your GPU overclock settings will work across all Blake3 algorithms since they’re basically the same computational workload.
Something else to consider: If you’ve already got a GPU rig set up for Alephium, you could also mine other algorithms during times when Alephium difficulty is unfavorable. KawPow coins like Neoxa or Ravencoin are decent solo targets with the right hashrate.
Frequently Asked Questions
Can I solo mine Alephium without running my own node?
Technically yes, using a solo mining pool like Public-Pool.io. But you’re trusting a third party with your block rewards and paying a fee (usually 1-2%). Running your own node is more reliable and keeps 100% of rewards. It’s not that complicated to set up, and the learning experience alone is worth it.
How much ALPH will I earn solo mining with one GPU?
That depends entirely on luck and network difficulty. With current network hashrate around 1.2 PH/s, a single RTX 3070 (60 GH/s) statistically finds a block every 3-5 years. Each block rewards 1.25 ALPH. So theoretically 1.25 ALPH every few years, but you could find one next week or wait 10 years. Variance is brutal at low hashrate. If you want consistent earnings, pool mine instead.
Is Alephium better for solo mining than Kaspa?
Both use GPU-friendly algorithms (Blake3 vs. KHeavyHash) and both have reasonable solo mining odds if you’ve got enough hashrate. Kaspa has higher network hashrate overall, making it harder to solo mine. But Kaspa also has ASIC miners available, which complicates the GPU mining landscape. I’d say Alephium is currently better for pure GPU solo mining, while Kaspa might be better if you’re willing to invest in ASICs.
Do I need to keep my node running 24/7?
Ideally yes, but it’s not critical. If your node goes offline, you’ll stop mining and won’t earn any blocks during that time. When you bring it back online, it’ll sync up with the network (takes a few minutes to catch up). For maximum solo mining chances, keep the node running continuously. I run mine on a low-power mini PC that stays on 24/7 while my gaming PC with the GPUs only mines part-time.
What happens if I find a block while offline?
You can’t find a block while offline. Your mining software needs an active connection to your node (which needs connection to the network) to receive new work and submit solutions. If your node or internet goes down during mining, any work in progress is lost. This is why stable internet and reliable hardware matter for solo mining.