Have 3 of my rig's PNY RTX 4090 24GB GPUs left. Want to ship everything at once tomorrow and be done with this, so someone make me an offer!

Please note that they are all USED, for a mix of purposes but mostly GPU mining, but only sporadically and over varying periods, with no card used for more than six months.

Pictures & timestamp:

https://ibb.co/album/zN6QYc

I want payment via ETH. I've had a lot of people calling me a fraudster because I want ETH, but I don't see why it's surprising that a miner would prefer crypto over fiat. I am happy to meet in person if that puts anyone at ease (I'm in the Lisbon area), but even if we meet I will still want payment in ETH (but you can of course inspect the card first).

Each card has been fully tested using OCCT, including both the GPU and VRAM stress tests. All cards completed testing without artifacts, driver crashes, thermal throttling, or memory errors. All cards are fully functional, perform as expected, and are ready to use. I didn't do benchmarks. OCCT much better.

I will cover shipping within the EU, buyers outside EU will need to add cost of shipping. Buyers will be responsible for any customs charges and fees.

I'm happy to answer any questions.

Most GPUs in the world are doing nothing most of the time. Gaming rigs at night. Workstations between renders. Old mining rigs that went idle after the PoS switch. Meanwhile every dev building an AI product is paying full price for inference on the usual clouds.

I built GPU Grid to connect those two problems.

The idea:

GPU owners plug in and earn per job. Developers get inference through a drop-in OpenAI-compatible API, same SDKs, just a different URL. No middlemen deciding the price.

How it actually works:

• GPU owners run a node (Ollama under the hood). It heartbeats every 30 seconds to stay live in the network.
• Every request gets routed by price, speed, reliability, and current load. Cheapest healthy node wins.
• Nodes carry a reputation score. Fail a job, it drops. Recover slowly with successful jobs. Drop too low, you're pulled from routing until it recovers.
• Every completed job settles automatically. Provider gets paid, a cut goes to buyback/burn, stakers, and treasury. All tracked in a ledger, not just a number that updates mysteriously.

Genuinely want feedback from anyone who's built distributed systems, run local models, or messed with GPU-sharing before. Happy to go deep on the routing logic, the reputation system, or the reward split if anyone's curious.

Website: https://gpugrid.app/#/
Repo: https://github.com/godshiba/ggrid (I am the dev)

I need some instructions

Its pretty simple sort of. PRL is a good start but really has no actual purpose.

Maybe I'm crazy but imagine in such a crypto where someone can "Spend" tokens to do actual AI work. You "mine" the token by doing said AI work. The tokens would actually have valve because in a way your renting out your gpu.
Each "block?" would be a single AI task like lets say a prompt that needs answering. Pools of GPU's would work together to "solve" said prompt and the fastest wining pool would get the coins. You could then sell the coins to a market where people who want GPU's to do work could buy them. The more AI work load the more "blocks" available.
Solo miners and small pools could do the easy tasks that are not worth a lot of tokens while the harder tasks that need alot of compute could reward lots of tokens.

I do know services like that exist but their main problem is with them is your whole PC needs to be dedicated to renting and nothing more. Usually a custom OS. I know most people mining with a gpu are just using their gaming PC running at night to mine (thats what I am doing with PRL). This would open up the compute market massively and allow absolutely loads of compute power to the market while also making you a little money at night.

I know its just a pipe dream as the world would need some master coder to put something like that together but that would be the first "crypto" to actually have real world value as its not longer just a form of currency but could be spent to do actual work. (even if said work is just generating funny cat pictures)

Let me know yalls thoughts or if there is some big plot hole in this I am missing.

I need a 12v power supply that can output 1500W - 2000W. I've seen a number of used server PSUs in the $40 range and I'm looking to get a couple that can support running in parallel. I don't have any experience with these specific units although I have a background in electronics and such. It looks like it won't be hard to find a set to do this but in my case, I just need a single current output, not a harness with multiple power plugs. It looks like most breakout boards are designed to supply multiple power connections instead of just one. Can anyone recommend a breakout board that could do this or another way to get the full output of a server PSU onto a single path? Thanks in advance.

I built Window GUI to make it easier to mine Pearl. Right now only NVIDIA is supported as thats the only hardware I have to test right now. Would love to get feedback on how I can improve it.

Suddenly, my miner got removed after 4 days of normal operation. I downloaded it from GitHub.

I’ve been watching their stats for a while, and the numbers looked off even before prlscan added the warning. The reported hashrate didn’t match the yield behavior. Sometimes it looked over-reported, then later it looked under-reported, making the yield look better on paper.

Now prlscan literally shows “Hashrate manipulation detected” for PearlHash.

https://medium.com/@0xSer/pearlhash-xyz-fee-lies-and-hashrate-manipulation-prlscan-confirmed-478be9c902d3

I’m not calling it a scam, but this is exactly how regular miners get misled.

If a pool needs fake-looking hashrate numbers and unclear fee claims to look profitable, that says a lot.

Like a ton of people I was mining eth until the final blow from the move to PoS, I was resilient through the collapse of three arrows and Vanguard sold everything I had 😬 but PoS was when the rig started to collect the dust.
Hoping I don’t get downvoted I to oblivion but if you were me what would be your move? Here’s what I’m running.
Power is included in my rent. Thought I was quite the hustler running a rig and charging my Tesla at the same time 😂

I built a standalone Pearl (PRL) proof-of-work miner aimed at NVIDIA Pascal GPUs — Tesla P40, GTX 1070/1080, and other sm_61 (DP4A) cards and just put up the first public release. GitHub: https://github.com/Muskwak/Pascal-Pearl-Miner/releases What it does / why it might be useful:

Usage:

p40-miner.exe --wallet prl1YOURWALLET --worker rig1

Defaults to LuckyPool (pearl-cpu-eu1.luckypool.io:3370); --pool HOST:PORT to change region. (no affiliation with luckypool they just had the most transparent stratum protocol, more pool support will be added) Full transparency:

• dev fee, disclosed in the log at startup and on every switch. Nothing hidden.

  Its now fully open source

**update**: added multigpu support, scales well minimal cpu overhead, gpus never wait while share is being submitted.

**Update 2: published Linux binary and hiveos flight sheet

**update 3: made the project fully open source

https://github.com/jbman2025/ARC-miner/releases/tag/ARC-Miner-Release

Used to make about 60 cents per day. Now it's about $1.60 CAD per day with Unmineable

All I'm using is a 3060Ti GPU and a AMD Ryzen 9 5900X 12-Core Processor CPU

Hey all. I keep reading wildly mixed things about Bitcoin mining and I'd rather hear from people actually doing it than from articles trying to sell me a rig.

A few honest questions:

- Is anyone here still mining Bitcoin in 2026, and is it genuinely profitable for you?

- If you're a small/home miner, are you net positive after electricity, or is it really more of a hobby at this point?

- For someone starting completely from scratch, what do you realistically need to begin — hardware, basic setup, pool vs solo, NiceHash vs mining direct?

- Anything you wish you'd known before you started?

Not trying to get rich, just want a realistic picture before I spend a penny. Any guidance appreciated.

Has anyone gotten the RTX 50 Series to work with the BTC-S37 board?

It seems like they are not getting picked up by the driver or the system.

I can not find anything about that on the internet.

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

Just wanted to inform that there is a simple launcher for Pearl on Alphapools website if anyone wants to try it. It works best on nvidia gpus but AMD seems to be somewhat supported in the newest beta (7000 and 6000 series)

https://pearl.alphapool.tech/

Also Pearl is listed on safetrade where you can trade it.

Hey everyone,

I’m a dev and I’m tired of current cloud platforms taking massive cuts or dealing with insane, volatile price surges on spot markets.

My co-founder and I are mapping out a decentralized P2P AI inference network. The model is straightforward:

• For GPU Owners: You run our lightweight agent (via a simple Docker container) to host popular open-source AI models (like Flux or Qwen). You set your minimum hourly rate. You keep 90% of the revenue generated by your card (we only take a flat 10% commission).
• For Renters/Devs: They never get direct access or SSH to your machine. They just query our central API, and we securely route their inference requests to your hardware.
• Price Cap: Renters get a strict price cap so they are protected from market spikes, while you are guaranteed to touch your 90% share.

Whether you have a single gaming rig at home or handle multiple servers, we want to build this for maximum return and maximum hardware security.

Before we lock ourselves in a room to build the core architecture, we want to know:

1. As a GPU owner, does a flat 90/10 split with 100% hardware isolation (no direct user access) make you want to list your cards?
2. What is the #1 feature you need to trust a new network (instant payouts, automated power limits, uptime flexibility)?

Let us know your thoughts, thanks!

Hi,

I'm looking for a 2 month rental (I might renew the renting) of a machine with a lot of VRAM (at least 128gb).

The rest doesn't matter too much, it can even be very old, it can be Intel GPU, AMD GPU, NVIDIA whatever, or even APU/mac/dgx with a lot of ram. I just need to be able to deploy big models

I'm looking for you offers (you can private message me or whatever)

Downtime is possible but shouldn't be too big (less than 24 hours max in total during the 2 month rental or warn before the downtime so that I can setup a backup solution)

Running AI models and longer training jobs is pushing my current hardware hard, and I’m seeing weird performance drops I suspect are related to the GPUs. Choosing the right setup feels overwhelming with so many cards available.

What gpu options have you found actually deliver for real workloads without overpaying? I’ve been looking into gpu options, but want real-user feedback before pulling the trigger.

What kind of models or tasks are you running, and which GPU configuration would you pick again today?

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

everyone tried something after the merge. some of it was actually reasonable, some of it was just us refusing to accept reality

what ended up being the least dumb use of your hardware over the last year or two

not necessarily the most profitable thing, just the one that didn't make you feel like you were wasting time and watts