Questions tagged [gpu-mining]

Collects questions about mining setups on basis of GPUs.

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55
votes
2answers
68k views

In the ASIC-age, is it worth starting mining Bitcoin at home?

I have recently learned about Bitcoin and would like to get rich quickly into mining. I have control of a laptop library full of ancient computers powerful gaming PC cluster of GPUs an old ASIC, I ...
35
votes
3answers
49k views

How can I start mining Bitcoin?

Ok. I don't care if I make only a small amount of bitcoins mining. I want to mine. How do I setup my machine (amd x64 4.6Ghz 6GB/RAM with GeForce Nvidia 7300, LinuxMint 10) to start mining? Is it ...
28
votes
3answers
47k views

How useful is a JavaScript miner?

I don't have a great understanding of how bitcoin mining works, but how useful would a JavaScript miner be for collecting revenue from visitors? Stupid question, but if I put the user in as part of a ...
21
votes
2answers
5k views

Could the EC2 infrastructure be used to efficiently launch a 51% attack?

This excellent answer from Serith states that one would need 31150 ATI 5870 graphics cards to launch a 51% attack. Amazon EC2 offers computers for rent for 2.10$ per hour. These instances have 2 x ...
18
votes
4answers
128k views

Can I damage my computer by mining bitcoin?

I have been mining Bitcoin for a while on a few systems, some CPU mining (which has proved to be basically useless) and some GPU mining. The GPU miners are workstations, which have midrange graphics ...
18
votes
5answers
14k views

Will mining significantly increase the power consumption of my PC?

I have a PC that is always on 24/7. I use it as an SSH and backup server, and it has a modest, not-too-great GPU that sits idle most of the time. I hear a lot of talk about mining not being cost-...
12
votes
5answers
17k views

How does one calculate the profitability of GPU mining?

As GPU mining made CPU mining non-profitable, at some point in time more specialized mining hardwares (FPGA and ASIC) would make GPU mining non-profitable. When is GPU mining considered not-...
12
votes
1answer
15k views

Why do AMD's GPUs mine faster than Nvidia's?

I have been searching Google all day and cannot find any real information. I'm looking for information in detail, such as specifications or the qualities of the GPUs that make the differences.
11
votes
3answers
69k views

Is Gpu mining still an option?

My friend asked me to do a research for him on bitcoin mining, I don't know a lot so I'm asking. He's consider buying either NVIDIA gtx titan or NVIDIA gtc 980. Decent motherboard and internet speed. ...
10
votes
3answers
2k views

Why does poclbm acquire 100% CPU?

I recently switched from WinXP32bit to Windows7. While under XP poclbm took about 5% CPU Time of one core, now it uses one core with 100%. Is there a specific reason for that? I now use AMD/ATI ...
10
votes
1answer
2k views

Why does merely having Windows Media Player open double my GPU hashrate?

I'm using poclbm to mine under Windows... processor is an AMD A6-3400M with integrated Radeon HD 6250G GPU. When Windows Media Player is closed, I get a rate of 16 megahashes/second, but when it is ...
9
votes
5answers
5k views

Best GPUs for Mining [closed]

GPU mining is the way to go, as at August 2011, until something better arrives on the market. There are plenty of GPUs out there, but only a handful offer the best performance when comparing total ...
9
votes
4answers
5k views

Could the $25/£16 Raspberry Pi computer be used to run mining equipment?

Raspberry Pi $25/£16 PC article I saw this article today and it looks like a really interesting development in budget computing. It's a $25 barebones computer that runs Linux, and can play games ...
8
votes
3answers
30k views

Litecoin - Is better use a good CPU or good GPU?

I heard in some forums that mining Litecoin is better using a good CPU (Processor), different from Bitcoin that's better mine using a good GPU (Videoboard). I want know, this is true? For litecoin, ...
8
votes
2answers
3k views

What happened to Krad Miner (the first javascript GPU miner)?

Krad Miner was the first javascript miner that supported GPUs. Now, the website yields a 502 error, and there has been no response to post #57 in the thread asking about it being dead. Does anyone ...
8
votes
3answers
731 views

Have there been reports of botnets mining Bitcoin / crypto-currencies?

Is the threat of Botnets using massive amounts of CPUs/GPUs to mine Bitcoin, or some CPU-friendly coin, purely theoretical at this point? Or have there been reports of this actually happening? I know ...
8
votes
4answers
30k views

Mining behind a proxy and restrictive firewall (only http ports allowed) - possible?

I have a very restrictive firewall with an additional proxy here. Is there a GPU mining tool out there that supports proxy server? The best would be a SSL connection to the mining pool. A long living ...
8
votes
2answers
8k views

Is it possible to generate bitcoins with a Google Chrome extension?

I just came across Rlweb's Bitcoin Generator, a Chrome extension that claims to be the "first google chrome extension creating Bitcoins". This extension looks quite shady to me, they don't even have ...
7
votes
5answers
373 views

What is/Is there the relation between the value of a bitcoin and the prices of video cards?

A significant number of Video Cards (significant investment) are required to reduce the possibility of 51% attacks. What would happen to the price of a Bitcoin if the prices of Video Cards suddenly ...
6
votes
3answers
5k views

Is it impossible to GPU mine without OpenCL?

I have an Nvidia 7300 GX and want to start mining with it. This card doesn't support OpenCL. Can I still use it for mining? With BitMinter I can only use CPU mining; it doesn't see the Nvidia card. I ...
6
votes
2answers
4k views

When was the first GPU miner made available publicly?

The GPU miners are widely used nowadays, but that wasn't always the case. When was the first GPU mining software made available publicly?
5
votes
2answers
10k views

Bitcoin alternative designed for NVIDIA

Currently the best graphics cards to mine Bitcoins are all AMDs. What should be changed in the Bitcoin protocol to make the alternative version of Bitcoins better mined by NVIDIA graphics cards? Could ...
5
votes
4answers
18k views

Can I use an old Pentium 4 desktop for mining if I upgrade it with a good GPU?

I know that the most important thing for mining is a GPU. I read some stuff about it but I never read a specific answer to this simple question. I have some old desktop computer. Pentium 4 (~1GHz) ...
5
votes
3answers
10k views

Can I use one graphics card for games and one for Bitcoin mining, without losing performance?

I have a GTX660 right now, but I bought an R9 290x recently. I was wondering if I can leave both in my pc and use one (the GTX660) for Bitcoin mining and one (the R9 290x) for everything else (mostly ...
5
votes
1answer
2k views

Bitcoin mining may reduce the lifespan of my video card?

I'm not using a mining-dedicated videocard, i'm using my only video card (Radeon 6850) and i'm getting around 0.11 btc/24h. My concern is about reducing the lifespan of (or even burning) my video ...
5
votes
3answers
2k views

Cooling for an XPS 15 (L502x) laptop during Bitcoin Mining

I would like to know exactly where I should put my extra cooling fans around my laptop so that I can more efficiently cool while I mine bitcoins. I realize this is not optimal at the moment, but ...
5
votes
1answer
8k views

CPU vs GPU Mining (FTC) - CPU wins? How?

I've read many times over a long period of time that GPU will win out against CPU every time if you use hardware of a similar tier/age. However, i've been toying around today with some FTC mining and ...
4
votes
6answers
250k views

How long does it usually take to mine a bitcoin block?

I am quite new and wondering how long it would take with a single GTX 680? EDIT: I am using a pool.
4
votes
1answer
12k views

No OpenCL platforms found?

Is it possible to mine with Nvidia Quadro 600? Both GUIMiner and DiabloMiner report that no OpenCL platforms/devices were found. How can I check if GPU has OpenCL?
4
votes
1answer
2k views

Sudden Drop in Hash Rate GeForce 650 GPU Card

I'm running on a 15" Retina MBP and have just been playing around with mining on it a little bit. I realize GPU mining is almost dead at the moment, but bear with me. Overnight last night I was ...
4
votes
1answer
942 views

Is there any way to install a GPU miner on ubuntu without using the proprietary drivers?

The question pretty much says it all. Any way to install a GPU miner (ATI) without A) Installing fglrx (which is a very bad driver for everyday use, and breaks my dual-monitor setup) B) Installing ...
4
votes
2answers
2k views

Help locating bottleneck on new mining rig

I built a mining rig with 3 Radeon 6850 GPUs. When I run one miner (either Phoenix or m0mchil's poclbm) it reports a hash rate of a little over 200 Mhash/sec. When I fire up a second miner pointed ...
4
votes
2answers
9k views

Better or worse to mine multiple workers on one machine?

The title is quite self-explanatory, really. I use cgminer on Ubuntu 12.10 to mine bitcoins in the 50BTC pool. I have three workers set up. If I run multiple instances of cgminer, each targeted at ...
4
votes
1answer
591 views

Combined scrypt/SHA256 mining on one GPU

Is it possible to mine scrypt and sha256 coins at the same time on one GPU? Rationale: Hashrate of scrypt mining is limited by memory bandwidth. That means that some of the processor cycles are ...
4
votes
3answers
6k views

Litecoin mining 10 times slower than a couple of days ago

I have a 5850, and have been mining with it for about a week. With GuiMiner I can mine bitcoins at about 275Mhash/s. This has not changed. A couple of days ago I setup Litecoin mining and it was ...
3
votes
3answers
14k views

AMD HD6850 mining speed is very slow

According to litecoin.info/Mining_Hardware_Comparison, 6850 is 200+kH/s But I run speed is 17.28K/14.39Kh/s, what's wrong?? cgminer version 3.5.0 - Started: [2013-11-30 17:08:22] --------------------...
3
votes
1answer
313 views

Is it more efficient to use multiple computers when I have multiple GPUs?

I have 4 video cards: 2x 7970 & 2x 6970. This is a question of efficiency regarding MH/s. Simply, I would like to know which is better: ~1900 MH/s on one machine ~1200 MH/s and ~700 MH/s on ...
3
votes
1answer
8k views

Is mining faster with 2 GPUs in crossfire or with 2 PCs with one GPU each?

Is it faster to have 2 separate computers with the same graphics card but different specs, or one computer with 2 GPUs in crossfire? By math, they should perform the same im guessing at the same ...
3
votes
3answers
6k views

How can I participate in a mining pool that is mining Litecoins?

To date I've only participated in mining GPU-optimised crypto currencies. I wondered what happens when I pointed my GPU miner to a Litecoin mining pool worker, Litecoin being designed to be optimised ...
3
votes
3answers
15k views

Easy Miner showing zero work, no devices shown

I have servers at my home (I work as a computer architect from my home for the Fortune 50) that are on all the time and plan to procure some Bitcoin hardware miners in the next few weeks. In the ...
3
votes
2answers
6k views

How to use both CUDA GPUs?

I'm using rpcminer-cuda to have a play around mining some bitcoins. I have 2 NVidia cards, and I understand this is not ideal for any profitable mining. I would however like to have them both ...
3
votes
1answer
3k views

“No more backup pools left. Using primary and starting over.”

I am not using a pool, I am using my graphics cards mining with poclbm over rpc. i do not understand why I get these messages. localhost:8332 15/08/2012 22:40:13, No more backup pools left. Using ...
3
votes
1answer
2k views

How profitable was GPU mining in 2011-12?

I am not interested in mining myself, I just want to know how true my friend's claims are since Bitcoin is a subject that I try to follow and understand. He says he mined 31 bitcoins in 7 months ...
3
votes
1answer
4k views

What are the most popular CPU/GPU miners with scrypt-jane support

There are a few github projects, but it doesn't look as though there's a 'mainstream' option with good support for varying protocol. Is there any one most popular?
3
votes
1answer
681 views

How do I mine with more GPU's than my motherboard has slots for?

I noticed pictures of some mining rigs that appeared to show GPUs hooked up to cables going to a mother board and not using pci slots. What are these cables called and how can I use them to increase ...
3
votes
1answer
202 views

Is there a way to set the aggression for the OS X Diablo Minor?

I run the OS X Diablo Minor on my new Macbook. It seems to work well enough and it earns me a few bit-cents each day. The only problem is that I have to cut it off whenever I'm working on the Mac, ...
3
votes
1answer
4k views

External GPU for mining [closed]

Of course, there are lots of ASICs out there with exponentially more hashing power. But I'm not yet ready to invest and dedicate to one coin. Is there a mining solution in which one can set up an ...
3
votes
2answers
2k views

Why is a GPU a better tool for bitcoin mining than a CPU and is an FPGA better than both?

I was looking into the best tools for bitcoin mining and found out that GPUs are a better tool for bitcoin mining than CPU's. What is the reason for this? furthermore, I found dedicated chips that ...
2
votes
1answer
729 views

i have good pc can i mine on it, if i don't have to pay for electricity? [duplicate]

i have gtx 970 g1 gpu and intel i7 4790k cpu. i dont have to pay for my electricity costs. i used to play games but now i don't play them any-more. i was hopping someone will tell me if i can make a ...
2
votes
2answers
11k views

GPU mining with Intel HD Graphics 4000

I am running Mac OS X 10.7 on a MBP and OS X 10.8 on a Mac Mini. The Mini has a Intel HD Graphics 4000 GPU and the MBP has a 3000. I know that I cannot mine with the MBP as the GPU does not support ...