"Graphics Processing Unit" - The specific component on a video card which performs active processing of images. GPUs are commonly used in Bitcoin mining as they are much more efficient at certain varieties of integer math which are a major part of the hashing process underlying Bitcoin mining.

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63 views

Normal hashrate but no accepted shares in

For the moment I'm trying to mine altcoins using an AMD HD6850. The version of cgminer is 3.7.2. The pool I'm using is prohashing.com. It's a scrypt-mining pool which mines the most profitable coins ...
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1answer
39 views

ASIC and FPGA feasibility as GPU

I've done a minor amount of research into the topic of bitcoin mining using ASICs and FPGAs, and I've started wondering: Could these be used as GPUs (possibly specialized to a subset of what modern ...
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0answers
106 views

Is bfgminer using my GPU/CPU correctly?

I'm not sure if bfgminer is working properly. I get the following when starting bfgminer using mining.bitcoin.cz pool. bfgminer version 5.4.0 - Started: [2015-11-16 15:57:39] - [ 0 days 00:05:16] ...
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2answers
1k 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. ...
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1answer
89 views

Trying To Get More MH/s Litecoin Mining

I am relatively new to this but do have technical abilities like overclocking, etc. Here's what I'm working with: AMD A6 3620 APU w/Rade Radeon HD 6530D Driver: AMD Catalyst 15.7.1 Win 7 64 ...
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1answer
295 views

What miner can I use to mine litecoin with the scrypt hash function?

When I run cgminer for run it to mine ltc the parameter --scrypt, cgminer says that is not recognized option. So, cgminer does not work. What miner can I use to mine litecoin with the scrypt hash ...
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0answers
33 views

GUIMiner not utilizing 2nd GPU

I've just setup GUIMiner, I have two graphics cards, and they are both running. However, one is getting ~400 Mhash/s, the other is getting ~10 Mhash/s. The monitoring of the GPU's also shows one ...
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0answers
42 views

GPU VanityGen with AES Encryption?

I'm getting back into Bitcoin and have started pooling savings together into a wallet. I'm moving on to cold storage and need to order some metal cards to keep safe somewhere. I need to generate an ...
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0answers
111 views

Writing a GPU Bitcoin mining client (learning purposes)

I want to write a basic GPU miner from scratch for learning purposes. By "from scratch" I don't mean that I am unwilling to use libraries but I want it to be similar to real GPU mining software, and ...
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1answer
268 views

Using GPU mining with the Bitcoin Wallet

After asking this question about using the Bitcoin wallet to mine, I am wondering how I can get my GPU involved with the mining work? Is this possible? or this there other, non-pooling software that ...
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0answers
104 views

How to use bitcoind with CUDA-ready box?

I am not asking for mining (which is all the information I could find on the net). I am asking for the regular bitcoind daemon, looking for having a full node with a reasonable high performance per ...
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1answer
212 views

What is the difference in speed between a GPU and an ASIC per dollar of cost?

I realize it depends on the ASIC as well as GPU.. Just want an estimate for some calculations I'm doing. Talking about Bitcoin mining, not an altcoin. Thanks!
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168 views

PCI Riser causing GPU to crash

I just got a new PCI extender (which is a flexible one) for my graphics card as I've built my own custom "desk pc". Now I don't really mine on it, but I do play games and whenever I start playing for ...
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1answer
229 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 ...
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0answers
55 views

Is it possible to identify exact GPU type using miner's log file?

In the miners (sgminer) log file I have the following lines: [21:14:19] ADL index 0, id -546853344 - BIOS partno.: 113-C3865001-T04, version: 015.041.000.000.000000, date: 11/25/13 02:47 [21:14:19] ...
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1answer
401 views

GUIMiner - Don't seem to recognize my GPU. Where to set it up?

Please don't be rude, I'm not looking for making a living on bitcoin mining, I'm just expermienting with it a bit. At least I would like to, but I can not use properly the GUIMiner. I reckon that I ...
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1answer
210 views

GPU mining strategies (algorithm)

I am currently in the process of creating a fairly simple bitcoin miner for CPU and GPU (for demonstration purposes not for money earning). However I am having a little troubling understanding how ...
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5answers
3k views

Why can't they use super computers to mine all the bitcoins?

I have very limited knowledge of bitcoin, but, I hope you don't mind my asking this question: As I understand it, "mining bitcoin" requires "significant" computational prowess. A lot of dedicated ...
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0answers
459 views

Using Onboard Video but Mining with nVidia Geforce 8400GS

So, after much struggling and a few reinstallations, I got my nVidia Geforce 8400 GS mining by installing the correct drivers, nvidia-cuda-toolkit, openssl, automake/autoconf, and cudaminer. The ...
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1answer
45 views

does OpenCL on Nvida work as well as OCL on ATI?

in most cases I've seen mining techniques listed as either ATI with OpenCL or Nvidia with Cuda. but I have seen Nvidia graphics that claim to support OpenCL. is this implementation different or would ...
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1answer
449 views

Two GPU's But Only One Will Mine In cgminer

I have a rig with two GPU's set up in it. Both are ASUS and one is a R9 280x and the other is a HD 7790. Both appear when I run the command: sudo aticonfig --lsa GPU 0: This is the HD 7790 GPU ...
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2answers
1k views

Difference in hashrate between two GPUs

I am a gamer who simply uses his rig to mine when idle. A year ago I was getting 0.5 Ghs using a Radeon HD7970 3072MB 384bit OC Boost, then due to a technical issue I stopped mining for a few months ...
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1answer
444 views

Can I emulate a graphics card using software, and use it for mining?

My name is Ben and I'm working with a server technician called Fab. We are using Team-viewer to work together on this question to make it as concise and to the point as possible. We have set up a ...
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2answers
217 views

6 x GPU mining rig only installs drivers for 5

I built the following rig: 5x SAPPHIRE TRI-X R9 280X 3GB GDDR5 OC (UEFI) 1x AeroCool Templarius Imperator 1150W 80 Plus Gold 1x HighPower Tech 1200w Gold Plus (HP-1200-G14C-GOLD) 1x Asrock H61 Pro ...
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3answers
284 views

5gpu 2psu scrypt mining rig shuts down 1hour later [closed]

I built the following rig: 5x SAPPHIRE TRI-X R9 280X 3GB GDDR5 OC (UEFI) 1x AeroCool Templarius Imperator 1150W 80 Plus Gold 1x HighPower Tech 1200w Gold Plus (HP-1200-G14C-GOLD) 1x Gigabyte ...
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2answers
620 views

“Can't detect any devices”

I'm trying to start mining using my GPU (ATI Radeon HD 4850) but when I try to run cgminer it cant detect any devices. I use this to run cgminer: cgminer --scrypt -o ...
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1answer
88 views

Please help, stuck at static 24Mhash/s? [duplicate]

I'm fairly new to mining bitcoin, but I have read that using GPU can help improve performance. I currently am using GUIMiner (latest version) running on an OpenCL back-end but when I choose to use my ...
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3answers
6k views

Cudaminer On Mac OS X installation error: “malloc.h: No such file or directory”

I'm almost completely ready to GPU mine but I'm stuck on step #25 of Option #2 of this tutorial: http://www.reddit.com/r/dogemining/wiki/index/mac_mining_guide after running this command inside ...
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2answers
5k views

Mining bitcoin using cudaminer?

I have started mining using an nvidia gtx 670m GPU. I have compiled cudaminer and started mining on the slush pool. However, during mining I always get results similar to: accepted: 0/X (0.00%), ...
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3answers
976 views

Scrypt (Litecoin) memory / performance tradeoff

For Litecoin, if memory size is increased in processing the Scrypt algorithm, for example to 384 kB instead of 128 kB (and assuming likewise an L2 cache size of 384 kB), would the typical CPU ...
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1answer
395 views

Mining: Memory clock speed theory

I am mining on Radeon HD 7850 2G I increased GPU clock speed to max 1050 available in AMD overdrive. and then I started to increase memory clock speed. Mining performance is dropping when memory ...
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2answers
292 views

How long to earn fractions of bitcoin [duplicate]

I started mining today, and I'm using the bitcoin GUI miner, along with rpc2013-cuda. I'm running algorithms on the CPU(completely maxed out - It's a core i7 quad-core/Hyperthreaded at 2.3GHz) and the ...
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1answer
3k views

Mining Bitcoin on Linux with CUDA?

I have a Linux machine with an Nvidia GPU (GeForce GTX 760). Is there a tool, rather than writing your own, that can currently mine Bitcoin using CUDA on Linux?
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135 views

what is the best mining intenisty to use for certain grahpichs cards?

I use cgminer and I have a zotac nvidia geforce gtx 680 graphics card, what is the best intensity to use.
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1answer
3k views

Setting up BFGMiner with GPU's

I've got two AMD Radeon 7770's in my rig. I'm able to get the command prompt of BFGMiner to run fine up until I have to add my devices (GPU's). I'm not sure what commands to use or where I can find ...
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0answers
583 views

16x Presence Short (1x Riser)

I have an MSI Z77a-GD65 and I need to short one of the slots to get it to work. The MB was working fine with 5 GPUs until a couple of weeks ago when one of the slots stopped working. I know it's the ...
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3answers
3k views

Is one quad GPU rig better than two dual GPU rigs for Scrypt mining?

I want to buy four r9 280x cards for Scrypt mining. I already have all other hardware components to create two dual rigs. Would one mining rig that uses all four GPUs instead be significantly better? ...
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0answers
270 views

Can I connect 2 different PSU's to 1 GPU?

I have 2 PSU's 850W and 750W 1 motherboard and 4 cards 280x GPU's. I would like to connect 2 of the GPU's to a second PSU. So it means 2 cards are powered by PSU A. and 2 by PSU A via the motherboard ...
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1answer
234 views

Parts of a Bitcoin Mining Rig

Original question: How important is a strong CPU and GPU for ASIC mining? I would assume that the GPU could be a cheap one because even if its high-end it probably won't help, and that the CPU should ...
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0answers
551 views

Using bfgminer on an Intel GPU on Ubuntu 12.04

I am currently running Ubuntu 12.04 LTS on an i5 core and Ivy Bridge GPU. Using bfgminer I have successfully mined on my CPU, but my GPU is never recognized. I have installed OpenCl for Intel ...
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1answer
7k views

How to mine with Intel HD Graphics 4000?

I'd like to mine with my Intel HD Graphics 4000 (128SP 16C 350 MHz/1 GHz, 1.8 GB DDR3 1.6 GHz 64-bit, Integrated Graphics). I think it has support for OpenCL, as I ran benchmark ...
2
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4answers
19k views

BFGminer running on GPU on Windows 7

I can't get the BFGminer to work on my Windows 7 machine. I've followed the instructions on https://www.btcguild.com/index.php?page=support. But when ever I run bfgminer.exe I get the following ...
2
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4answers
6k views

LTC mining is better than BTC mining?

I've got a notebook with these specifics: CPU: AMD Phenom X3 II N830 3.14GHz (3-Core) GPU: ATI Radeon HD 5650 1GB Mining 1 LTC is faster than mining 1 BTC? How I estimate the times for BTC and ...
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1answer
332 views

Adding an additional GPU for LTC mining

I've just recently started litecoin mining on a kind of old AMD GPU. My motherboard has space for 2 additional cards. I'd like to drop in a new card specifically for litecoin mining, but... I'm not ...
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1answer
439 views

Simple GPU C++ mining

I'm trying to mine a genesis block for an experimental Peercoin clone. I've already written one using boost threads, and it's been really fun since this is the most processor intensive program I've ...
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1answer
1k views

Most important spec to look for on a GPU for scrypt mining (e.g. Litecoin)

By taking a look at all the current AMD cards comparison: http://en.wikipedia.org/w/index.php?title=Comparison_of_AMD_graphics_processing_units I was wondering if GFLOPS would be the best way to ...
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1answer
2k views

Can i mine with a GTX 760? [duplicate]

Well, bit coin mining is looking more and more promising and to be honest, i don't know a lot. I heard you get a lot from AMD cards, but if i use my Nvidia card will it even be worth it? Thanks in ...
2
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1answer
707 views

My Radeon 7570 that comes with my hp envy h8-1409 is not being detected by CGminer (Litecoins)

I'm using Windows 8.1 and CGminer 3.1.0 trying to mine litecoins What's odd about this computer is that the video card is some kind of HP OEM device, that's getting driver updates (latest August ...
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4answers
18k views

Should I mine bitcoins or litecoins?

I don't pay for my own power, but I have two problems mining. I am CPU mining at 250 mhash/s because my AMD Radeon HD 7800 series graphics card will only produce 4.0 mhash/s (the other problem I'm ...
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1answer
1k 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 HECKA expensive, so is there any ...