Questions tagged [gpu-mining]

Collects questions about mining setups on basis of GPUs.

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3answers
9k views

What are the optimal cgminer settings for a AMD Radeon HD 6670? [closed]

I'm following this tutorial for mining Litecoins, and I'm having a little hard time finding the optimal cgminer settings for my AMD Radeon HD 6670. Any hint on that? The tutorial gives this ...
0
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1answer
7k views

Is there a way to mine with many graphics cards without having a PC for each one (or two)?

I have a serious stash of radeon cards, some great, some fairly crap. I figure with them all running it all adds up. Problem is, running a PC for each card will get expensive, so is there any known ...
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1answer
4k views

Can one rig run multiple different graphics cards?

I have some 7950 and some R280, can I connect them both on one rig? Will it work normally? Or does system require all GPUs to be same?
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1answer
3k views

GUIMiner not detecting my GPU (AMD Radeon HD 7600M Series)?

GUIMiner does not appear to be detecting my GPU. Under available devices, I am only able to see my CPU. I have an AMD Radeon 7670M GPU, that I have the most updated driver for and can confirm that it ...
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1answer
572 views

litecoin mining

I'm a crypto currency newbie. I'm planning to mine lite coins. Is it possible to mine them using my Lenovo Y550 laptop? I have downloaded the wallet. I want to start with mining but im still in doubt ...
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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 ...
0
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1answer
176 views

Running poclbm miner in Ubuntu 13.04 without ATI card

I am running Ubuntu 13.04 64bit with 16GB RAM and this is my VGA card: 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) (prog-if 00 [VGA ...
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1answer
1k views

PCI-E v1 2 and 3 differences in mining?

Is there any difference in hashrate if I mine from mainboard with pci-e v1 v2 or v3. Also is there difference if I use x1 slot with extension to x16?
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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] --------------------...
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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 ...
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2answers
758 views

Which crypto-currencies can be mined effectively with GPU

We often hear both CPU and GPU mining are dead. There is a number of new currencies designed specifically for CPU or GPU mining. Which are these? Can you mine them effectively with GPU?
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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, ...
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2answers
1k views

Is it possible to mine Litecoin with a MacBook?

I have a MacBook and was told that I can't mine Litecoin with ASIC erupters. So, am I out of the loop with this whole new litecoins ordeal? If so, can anything be done using my MacBook? I can get my ...
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1answer
1k views

Balance not going up in deepbit after mining

I've been mining with a deepbit account and noticed the balance hasn't been increasing. I use the following bat file to run cgminer version 3.5.0 cgminer.exe -o http://pit.deepbit.net:8332 -u emailme@...
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3answers
15k views

Setting up BFGMiner with Devices

I have a Dell Poweredge Server R200 set up with BFGMiner. Now I know this is old and not very powerful, but I am curious as to how I should use BFGMiner. When I ran it initially, it was not able ...
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1answer
2k views

How to physically configure graphic card for higher yields?

If I were to purchase a motherboard with 7 pci-ex ports. Could I then attach 7 graphic cards and run 7 cgminer processes? One for each card? Or would a better build be to group cards together with ...
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4answers
47k views

What should I choose - GPU Mining or CPU Mining? [duplicate]

I have a HP Pavilion G6-2313AX Laptop with Processor : APU Quad Core A10 and Graphics : 512 MB AMD Radeon HD 7660G (Integrated) and 2 GB ATI Mobility Radeon 7670M HD Graphics (Dedicated) I know ...
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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 ...
0
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2answers
7k views

GUI miner not working properly (slush's pool)

I'm trying to mine for slush's pool with GUIminer. The miner says that I am mining, and gives me a mhash number, but says that no matter how long I mine, I still have 0 shares. The pool says that I ...
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1answer
2k views

What virtual currency is currently the most profitable with an Nvidia GPU? [duplicate]

By most profitable, I mean the coin that returns the most profit for lower-hashing GPU's.
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1answer
1k views

Can one GPU mine on Mac OS X using cgminer?

I succesfully installed cgminer on my mac but every time I try to run it I get the message [2013-09-16 15:03:49] clDevicesNum returned error, no GPUs usable why is this? Is it that you cannot mine ...
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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.
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1answer
7k views

Problems with mining Bitcoin (OpenCL)

I have been having some trouble with mining. I have no OpenCL compatible hardware, so that severely limits the software I can use (for example, GUIMiner only allows OpenCL). Is there a way that I can ...
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1answer
6k views

Mining with an AMD Graphics card

Following this tutorial here: http://www.newslobster.com/random/how-to-get-started-using-your-gpu-to-mine-for-bitcoins-on-windows And it says, UPDATE: If you are unsure, please download GPU Caps ...
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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 ...
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1answer
1k views

cgminer works just fine for BTC but LTC mining won't get temps over 50C

These are the screenshots. Temp on LTC won't go over 50C although I set it to intensity 12 on my 6770. I get 200Mh/s on BTC and I shouuld be getting 200Kh/s, instead I'm getting 80Kh/s. http://i....
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2answers
3k views

gcminer with ATIRADEON HD3600 on ubuntu 12.04 64bit headless won't detect GPU

I am following this guide: http://rdmsnippets.com/2013/03/20/bitcoin-mining-with-ubuntu-12-04-tls-and-cgminer/ But it won't work on my server (Specification's are in the Subject-field) I get this ...
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3answers
4k views

PCI (no express) GPUs

I have a mining rig, with 2 PCIe (already being used) and 4 PCIs without use. I was thinking to buy a PCI based ATI card like http://www.club-3d.com/index.php/products/reader.en/product/radeon-hd-5450-...
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1answer
1k views

Only 70Mh/s with good PC! AMD CPU not supported? [duplicate]

I have a AMD 8-Core-CPU with a NVIDA GTX 560 for Bitcoin-Mining but I only get 70Mh/s... If I start CGMiner without GPU it detects nothing. Why cant I use my CPU to mine Bitcoins? Is that an error by ...
4
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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 ...
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2answers
5k views

What is the most important parts of the video card in Bitcoin mining?

For example, obviously it doesn't matter what type of adapters a video card offers when it comes to Bitcoin mining? Is the GPU speed or the amount of RAM the most important part in terms of megahashes ...
28
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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 ...
2
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1answer
4k views

Mining with one GPU

How do I GPU mine with only one GPU, which I'm currently using for graphics? Does that require going headless? How do I go headless?
3
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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 ...
12
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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.
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2answers
2k views

bitcoin mining on a laptop gpu, nvidia GT 120m? [duplicate]

i have a laptop with a discreet GPU, no integrated ones. its a Nvidia GT 120m in an ASUS laptop. i never use the laptop, so i decided to turn it into a bitcoin miner using bitminter. at the moment it ...
2
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1answer
5k views

Error trying to mine with stratum_proxy

I'm giving a specific case here, but I think I have seen the same error trying to use stratum_proxy for any pool and coin I have tried. When wemineltc.com briefly had a getwork server up, cudaminer ...
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1answer
1k views

I have an ATI Radeon HD 4550; would starting to use BitCoin be worth it? [duplicate]

Below average PC, wondering if it'd be worth it. The possibility of damaging my PC also exists.
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1answer
955 views

Simple GPU miner with long pooling C++

I want to write own GPU miner, but I can't find any simple solution (cgminer and RPC miner are big projects with many useless to me functions). I need the sources of only one GPU miner with long ...
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1answer
2k views

Why guiminer is using different amount of GPU each time I restart my copmuter?

Why guiminer is using different amount of GPU each time I restart my computer? I'm running guiminer-20121203, NVIDIA GeForce GTX 670M, poclbm.exe with flags -s 0.005 -f 60 What I noticed was, it was ...
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0answers
91 views

BitMinter - At what data rate communication happens between the BitMinter java client and the server?

Looking for how many KB or MB transferred each way every second or minute, whatever is appropriate. I am using a Macbook Pro and using GPU mining.
0
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1answer
429 views

Is there really this big a difference between AMD and NVIDIA? [duplicate]

As i am thinking of builing a system with a evga 670 i was wondering how much better a similarly priced AMD card would be in mining? The bitcoin wiki shows a hashrate of 406MH/s for the GV-R787OC-2GD ...
2
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1answer
808 views

What are the mining spec differences between Bitcoin and Litecoin?

Obviously, Litecoin mining requires less computational power as it it more CPU friendly, but does this mean that if you switch a GPU Bitcoin miner To Litecoin mining you will be wasting your resources?...
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1answer
4k views

How do I get started mining bitcoin with a GPU? [duplicate]

I'm totally new to this, but love this idea! I want to help, (and generate coin), and have only installed Bitcoin-Qt version 0.8.1 It ran, synchronized; I encrypted my wallet. But now what? Will ...
3
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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 ...
4
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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 ...
4
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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 ...
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2answers
877 views

Could i build a mining rig with these parts?

I have researched bitcoin mining for a while, and i have decided that i want to build a dedicated miner. Since i am very low on budget, I thought that maybe i could use an old computer that i have in ...
12
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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-...
2
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1answer
3k views

What GPU-APU configuration should I buy for mining Bitcoins? [closed]

I want to make own computer for mining bitcoins. I read a lot of it but I have some questions. I want to buy APU + Graphic card and I am wondering when I my computer is mining is using for that CPU + ...