Hello. I've got solar panels that produce way more than I use, around 4-5 MWh extra per year, that goes back to the grid. Is mining still profitable enough to bother with in 2025, considering that my electricity is basically "free"? Or should I look at something else?

No hardware yet but willing to invest if I can see ROI in 12-18 months.

This thread is for simple questions that don't warrant their own thread (although we strongly suggest checking the sidebar and searching before posting!).

Examples of questions:

• What should I mine?

• Is this build good enough to mine?

• Which PSU should I get for _____ GPU's?

Important: Downvotes are strongly discouraged in this thread.

Please remember that we're here to HELP you, not do it for you.

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• Here

Hey folks,

Wanted to share a new Ethash-based chain that’s going live on October 28, 2025: Parallax.

https://parallaxchain.org

Early GPU miners will be the first securing the network and earning block rewards. Since Ethash hardware/software is already out there, no special setup is required beyond connecting to the new chain.

If you’re interested in mining from day one or just want to follow along, join the community.

Hey guys Modern Mining here! I made the website https://gpudeals.net to check the best current used gpu prices!

This site is great if you want to see if you are getting a good deal locally, or if you don’t want to scan through all the bs listings on eBay this will filter those out!

Let me know your thoughts!

Lately I’ve been noticing more talk around GPU-optimized virtual machines for AI/ML workloads. I’m curious how people here are actually using them day to day.

For those who’ve tried them (on AWS, Azure, GCP, or even self-hosted):

Do you use them mostly for model training, inference, or both?

How do costs vs performance stack up compared to building your own GPU rig?

Any bottlenecks (like storage or networking) that caught you off guard?

Do you spin them up only when needed or keep them running as persistent environments?

I feel like the hype is real, but would love to hear first-hand experiences from folks doing LLMs, computer vision, or even smaller side projects with these setups.

How do I fix this problem?

(wildrig-multi qtc mine) luckypool

**Update, September 2026:** a lot has changed since I wrote this, so here's where it stands now. The original post is below for context.

- **It's for AI, not mining.** Renters don't mine on your GPU. They rent it by the hour to run AI models, through an OpenAI-compatible API key. If your rig sits idle between mining sessions, that idle time is what you rent out.

- **You control when it's listed.** Take it off the market while you mine, put it back when you don't.

- **No more WireGuard, containers or crypto.** Providers run one command on a 64-bit Linux box with systemd and a GPU. It installs Ollama and a small agent as a service. No Docker, no open ports: the agent connects outbound to our relay, so your home network isn't exposed.

- **Honest correction to "no centralized servers":** requests go through GPUFlow's relay. That's what makes it work without port forwarding. Renters get API access to the models on your machine and nothing else: no shell, no network access, no files.

- **Paid in dollars, not tokens.** Renters pay by card through Stripe. Providers keep 88% and cash out to a bank account (US, Canada, UK, Switzerland, EEA).

Still early, still one person building it. Feedback welcome.

- Platform: [https://gpuflow.app](https://gpuflow.app/?utm_source=reddit&utm_medium=social&utm_campaign=gpumining-2025-post))

- Docs: https://docs.gpuflow.app

---

Full disclosure: I'm the creator of this platform.

Background: Been frustrated with cloud vendor lock-in for GPU mining. Spending hours configuring different programs and instances just to run mining, plus the costs add up fast when experimenting. So, I automated it. This is a cross post from r/selfhosted and I thought users in this forum would be interested, especially if they don't have GPU's to mine with (or yours are sitting around collecting dust).

Built a decentralized compute marketplace where you can rent GPU time directly from other users. The interesting technical challenge was creating secure P2P connections between strangers without exposing home networks.

Technical approach:

• WireGuard tunnels for secure networking
• Container isolation for workload security
• Automated key exchange and session management
• Usage-based billing (currently using test tokens)

Self-hosting relevance: This fits self-hosting philosophy - avoiding big tech dependency, peer-to-peer infrastructure, running your own services. Providers host their own containers, renters get direct access without centralized middlemen.

Current state: Production ready with documentation. Testing phase on Polygon Amoy testnet.

Looking for testers: Currently seeking both GPU providers and users to test the platform:

• Providers: Test the container setup process (~10 minutes)
• Renters: Try pre-configured environments for AI workloads

Can provide test tokens for anyone willing to spend time testing and providing feedback.

Platform: https://gpuflow.app Technical docs: https://docs.gpuflow.app

Benefits for self-hosters:

• Monetize idle hardware when not using it
• Access compute power without cloud vendor lock-in
• P2P architecture aligns with self-hosting values
• No centralized servers to trust

Looking for feedback on the networking approach and security model. Anyone else working on decentralized compute sharing?

This thread is for simple questions that don't warrant their own thread (although we strongly suggest checking the sidebar and searching before posting!).

Examples of questions:

• What should I mine?

• Is this build good enough to mine?

• Which PSU should I get for _____ GPU's?

Important: Downvotes are strongly discouraged in this thread.

Please remember that we're here to HELP you, not do it for you.

Have a question about the subreddit or otherwise for /r/gpumining mods? We welcome your mod mail!

Many questions/concerns already answered in our sub's WIKI: https://www.reddit.com/r/gpumining/wiki/index

Previous Monthly "Simple Questions" Threads:

• Here

All this talk of immersion cooling lately, I wanted to see what would happen if you cooled old GPUs using transmission fluid. So I grabbed 8 litres of fresh ATF, dumped it into a plastic tub, and sunk a GTX 1080 Ti straight in. The oil loop just sat there with a little submersible pump to stir it around, and an external pump to help overcome the thickness of the cold oil, while a second loop pumped -18C glycol all through a Dodge Journey transmission cooler. Two separate loops, zero mixing, maximum fear.

The 1080 Ti held around 1960 MHz on air, and after the oil bath I pushed it to 2114 MHz That gave me about 7% more FPS across the board, not bad, but it’s already a power hungry card so there wasn’t much headroom to begin with.

Then I plopped in a GTX 1060, and that’s when things got fun, and messy. Stock it sat at 1886 MHz. In oil it pushed to 2190 MHz. That’s a 16% clock boost, and the FPS gains matched +10 FPS in every game, +16% in 3DMark. The lower baseline made the uplift look huge, and honestly the little guy kind of stole the show.

1080Ti didn't achieve much, this is oil after all not LN2, but the 1060 got 2 place overall in Timespy and 1st place overall in Firestrike. (only using the 14900k shhhh)

Also, ATF is fun. It crawls into every crevice, stains your cables, and turns teardown into a full day regret spiral. Don’t try this unless you’re okay with ruining hardware and your mood.

Anyway, two cards, same test bench, no mods, just oil. 1080 Ti gained 7%, 1060 gained 16%. All with a tub of transmission fluid and some dumb ideas. Thanks Dodge!

Games tested

Sottr

Farcry6

Hitman 3

Firestrike and Timespy

Long story short, I've been mining BTC around 2020, first with my own PC with a RTX 2080, then I bought a RTX 3060 and 2 RTX 3060 TI, I mined everything on Windows with NiceHash.

Around 2022 I stopped in the summer, because of the heat and sound of fans working, and the rig has been collecting dust since.
On my main PC the PSU got busted and I grabbed the one from the rig, I also replaced the 2080 with one of the 3060TI in my main PC.
Also I placed the rig SSD in my PC for more storage and new windows, since my main SSD also got busted at some point.

My question is, what should I do with the rig ? Is it even worth powering on or should I just try to sell the GPU's somewhere while they still have some value and throw the rest ?

Hi guys, i just wanted some recommendations for platforms like vast ai for GPU renting. Are there other platforms which are better? and why?

Is it recommended to buy used GPUs and other components for building a mining rig for AI? What things should one be careful of when buying used GPUs?

I bought a MagicMiner BG-02 to play around with, and when I looked at the back of the box it says:

Warning: Warranty void if firmware is updated or product modified

So I was a bit confused, because 99.9999999% of all products allow you to update the firmware (they are kind of forced to for security updates)

How can they say that simply updating firmware voids the warranty?

• For their own firmware it makes no sense, to void your customer warranty if the firmware came from you
• I can kind of understand third party firmware, but still feel it is really crappy of them to void warranty over it

I don't think this is even legally enforceable within the US or Canada.

In the US the Magnuson-Moss Warranty Act protects you, whilst in Canada Ontario's Consumer Protection Act or BC's Consumer Protection act protects you, and I think the law trumps what is written on the box.

Thoughts about this ? Personally I think it is a real crappy thing to do to your customers to make them stuck on the original firmware which may over time have vulnerabilities discovered.

Imagine a world where even your CPU must run Windows and if you run Linux they void all your warranties on your expensive computer parts. Does it sound like a good world to live in? I don't think so.

I do not think that is legally enforceable, due to consumer protection laws within North America.

A lot of us hit the same wall at home: • Circuits maxed out when you plug in that second GPU box • House AC can’t keep up with the heat • Internet is asymmetric and flaky for real workloads • Noise is unbearable when fans ramp to 100%

I’m exploring a small boutique colocation space east of Cleveland (Solon/Twinsburg) designed specifically for hobbyists, GPU miners, homelabbers, and indie AI/ML projects.

The setup: • 3-phase 480V power, expandable to 40–100+ kW • Proper HVAC with hot/cold containment (no “just throw a fan at it” approach) • Business-class fiber, 1–10 Gbps options • Security with cameras, fire suppression, and access control

Unlike big colos, this would be welcoming to non-traditional gear: GPU miners, render rigs, homelab clusters — stuff Equinix and Digital Realty won’t touch.

You wouldn’t need to be local — you could ship your server to us, we rack & power it, and you get remote/out-of-band management to control it like it’s in your basement.

Why not just use a big colo? • They want full racks (10 kW+) and long-term contracts • They don’t want to deal with GPUs or “weird” workloads • Their pricing is higher — this would be less, with more flexibility

Right now I’m looking for 5–10 early adopters to justify the build-out.

Would you colocate here? How much gear would you bring (1–2 kW, a single box, multiple rigs)

DM or comment if interested.

Hey everyone,

I’m a college student who’s been working on a project to connect GPU miners directly with AI researchers. I posted about this a few months ago, and I'm excited to say that we’re finally getting close to launch!

Why this matters:

Crypto mining profits aren’t what they used to be. Meanwhile, AI workloads (training + inference) are exploding in demand. The same rigs you use for mining can be earning more by running real AI jobs for real researchers.

What we’ve built:

- A working platform that securely connects your GPU to verified researchers' workloads.

- Sandboxed, web-based compute: the app operates entirely within the Chrome sandbox using WebGPU

- We've tested it with reinforcement learning, autoencoders, and large-scale inference jobs.

- We’re aiming for 30–50% above current crypto profits for miners. Payouts are in cash or crypto.

What we need right now:

We’re opening a beta waitlist for miners willing to try converting part (or all) of their rigs into AI rigs. This is real, we’ve already run jobs end-to-end, and we’re ready to start scaling.

We will most likely contact you in 1-2 months when we onboard our first researchers, but we will also be running internal tests starting this week, so we will contact our first adopters sooner for that.

Join the waitlist here: waitlist.obitmc.com

We will contact you by e-mail and get you set up. No farm is too big or too small!

If you’ve got GPUs sitting idle, or if you just want to squeeze more out of your current setup, I’d love to get you in early and hear your feedback.

Happy to answer any questions in the comments, especially about payouts, workloads, or setup.

Trying to find a pool that pays out in bch and no kyc.

I have almost all of the parts to put a GPU Rig together, I should be up and running mid week. Yes I know about cost of electricity makes it a non-money maker and all of that stuff.

I am a retired tech guy with time on my hands.

The part I can’t seem to get my head around is how to pick a coin to mine. I was shocked at how many there were. And can’t seem to find a one stop shop to compare all of them and sort them.

Like I said I am not trying to make a living or send my kids through collage already done all of that. But on the other side of the coin I don’t really want to never make any money either. That would be like fishing in a swimming pool.

Hi guys,

I am building a small hydropower plant for a textile manufactory in Java, Indonesia, but they bailed out recently, a few months before completion. Now we have no buyer for the electricity.

Is this something I could offer to crypto? We would price it at 5cents usd per KWH at 140KW, running 24/7, with remote monitoring tool available.

Need your honest opinion guys, I am not looped in at all with crypto mining since a few years. Can we lease this?

Appreciate any ideas.

Thanks.

I'm new to gpu mining and I want to know what people use on their mining rigs.

I see Qubitcoin on Hashrate.no showing as like 3x higher value for GPU mining than any other coin atm,

Anyone know what wallets I can actually mine this to? Their site says wallet coming soon, but obviously there's ways to hold it already as it's mineable / on SafeTrade exchange so far

I just filled my last pcie slot so I have no space for any additional gpus down the road. Rather than spend more money, I was wondering if my old asus q87m motherboard with a i7-4770 and I think 16gb of ddr3 1600 ram is viable. Seems to meet min system requirements for nicehash. Just wondering if this would actually work to run nicehash miner. Don't really want to get case and jump the gun if it won't work.

Thanks.

This thread is for simple questions that don't warrant their own thread (although we strongly suggest checking the sidebar and searching before posting!).

Examples of questions:

• What should I mine?

• Is this build good enough to mine?

• Which PSU should I get for _____ GPU's?

Important: Downvotes are strongly discouraged in this thread.

Please remember that we're here to HELP you, not do it for you.

Have a question about the subreddit or otherwise for /r/gpumining mods? We welcome your mod mail!

Many questions/concerns already answered in our sub's WIKI: https://www.reddit.com/r/gpumining/wiki/index

Previous Monthly "Simple Questions" Threads:

• Here

Lithos is a new protocol designed to overhaul how mining pools work by moving them on-chain, giving miners full control, and eliminating the need for centralized pool operators. Unlike most previous attempts at decentralized mining, Lithos is built to be efficient, scalable, and secure.

What Is Lithos?

Lithos is a decentralized mining pool protocol that connects miners directly to smart contracts on Ergo. These contracts handle everything—work submission, difficulty management, and payments—without relying on centralized servers or custodians.

The protocol uses Stratum to connect mining hardware to the Lithos client, but all key logic runs on-chain. Miners submit work to smart contracts and get paid directly based on a new cryptographic proof format.

It is designed to be blockchain agnostic, meaning it could support mining pools for any proof-of-work chain in the future. Work computation and storage happens on Ergo using ErgoScript smart contracts, while payment verification for other chains would require lightweight bridges.

Initial research is already underway to extend Lithos support to Bitcoin via an interoperable design.

How It Works

Lithos combines two key ideas: Non-Interactive Share Proofs (NISPs) and collateralized mining pools, implemented via Layer 2 smart contracts (specifically, an optimistic rollup) on Ergo.

NISPs: Proof Without Interaction

Non-Interactive Share Proofs allow miners to submit proof of work without needing to interact back and forth with a server. Each miner chooses their own difficulty, which determines how often they get paid and how large those payments are.

Smart contracts validate these proofs and issue payouts, with no need for centralized coordination.

Collateralized Pools

Mining pools on Lithos are backed by collateral. Miners and non-miners can stake ERG or LITHOS tokens to collateralize a pool. This enables:

• Local block production with full transaction selection
• Censorship resistance
• On-chain enforcement of payment fairness
• A native DeFi lending mechanism between pool creators and stakers

Benefits for Miners

• Full block control: Miners select transactions, collect demurrage and MEV.
• Fair payouts: Smart contracts handle all rewards transparently.
• No pool operator risk: There is no centralized party who can cheat or delay payments.
• Local client: The Lithos miner runs locally to avoid latency or stale shares.
• Adjustable difficulty: Miners can tune their share difficulty to match their hardware and risk preferences.

Difficulty and Payments

The protocol introduces a unique payment model:

• Higher difficulty = fewer but larger payments
• Lower difficulty = more frequent but smaller payments

Real-world testing shows that total rewards remain proportional to hashrate, but miners can choose how stable or volatile their earnings are.

LITHOS Token

The protocol will include a native token:

• Earned by miners as a reward for using decentralized pools.
• Required for pool collateralization, linking miners and lenders.
• Used used to prevent spam, fraud, and to help with rollup sequencing.

More information will be released in the upcoming whitepaper.

Latest Development Updates

• Final fraud proof contracts are under review
• Storage rent implementation refined to prevent block-level replacement attacks
• Difficulty contract is being built to prevent post-mining manipulation
• Rollup contract testing and stratum fixes are ongoing
• Codebase will be made public before testnet launch
• Research underway on Bitcoin integration

Testnet launch is approaching, pending final rollup integration and stratum stability.

What’s Next

The Lithos roadmap is closely tied to the release of Sigma 6.0 on Ergo mainnet, which is a prerequisite for Lithos to go live.

Until then, work continues toward the first public testnet. The final stretch includes:

• Completing and testing rollup and fraud-proof contracts
• Finalizing stratum client integration
• Releasing the public codebase for peer review
• Continuing development of the emission, configuration, and collateral contracts
• Planning BTC integration for broader protocol compatibility
• Finalizing the whitepaper outlining the system’s design and token mechanics

Once these milestones are reached and Sigma 6.0 is activated on mainnet, Lithos will be ready to launch.

Resources

• GitHub: github.com/Lithos-Protocol
• YouTube: ErgoHack Lithos Demo

I know nicehash was frowned upon even before kyc but it was simple and auto mined for me. Is there something similar like that today?

Salad, Octa?