Bitcoin Forum

Ok, just to familairze myself with how things work and before my real hardware does come in I want to try the waters with my single Nvidia GTX580 video card. Right now I'm using GUIMiner and using defaults and getting 142Mhash/s. I didn't put in any special flags or anything. Is there anything else I could be doing to get more out of this one card or join a different pool? Right now I'm joined with DEEPBIT pool. I just picked one out of a list. Are there any particular pools better then others for a single card like myself just learning the ropes?

I read that RPCMiner is good for Nvidia. I'm basically willing to play and try anything to familairize myself with what's out there and get some conversations going at least. I doubt I'll even see one BTC in 30 days.

You can roughly expect .03 BTC per day via PPS until the reward halves and/or ASIC comes out.

EclipseMC

Hmm. Bitcoin mining is moving away from GPUs with the promise of ASIC technology soon.

I'm waiting for that ASIC hardware myself.

What does this have to do with anything relating to my original post?

Cgminer is pretty fast. The only problem is that it's using 100% of one CPU core because it's using OpenCL.

That issue has been resolved on Windows for a while now. It was resolved on Linux a long time ago as well. Update your drivers.

Nvidia drivers by default on OpenCL use "busy wait" for the code, meaning it will always use 100% CPU. To do it in CUDA directly you can manually specify to not use busy waiting. However, I've done some testing, and CUDA code direct for BTC mining is no faster than openCL when maxed out, and if anything, every so slightly slower when asked to not busy wait. Note that there is precious little mining software that does native CUDA, and it is of NO benefit to nvidia miners, apart from the CPU usage issue, IF it's coded correctly. No, cgminer does not support cuda natively and I have precisely zero interest in implementing it, unless someone sent me 1000 BTC to implement it, especially considering GPU mining has a very very limited use by date now...

Your an idiot, All good GPU mining uses OpenCL.
Fucking jackass you dont even know what your doing. Go read
Alot.

<plonk>

I'm turning my GPU miners OFF in 2 days because of the reward halving. Why would you even want to start?

Not everyone is in it for the money..

*kertink, Kertink* Goes my bitcoin mining axe!, Its like folding@home, But i get something greater than karma out of it

Have you tried GUIMiner?  Using the option for CUDA.  I'm not sure what your reward may be vs OpenCL, but you can try.

*shank*
GO READ ABOUT HOW MINING WORKS

Heh, I wish this was a newsgroup.

Let me try to address the original post.

I am running 570's which are about the same as your cards.  You can tweak the speed and memory speed up a bit and see how stable your cards run.   I have found that some 'pools' run ok with this, others run badly.

Make sure you use your Nvidia control program to control the fan speed and do yourself and cards a favor and just set it up high.  Yes it will be a bit noisy but you want to make sure your cards are cooled.

On thing you NEED to be aware of,  if the miner crashes, the card probably WILL recover and you will most likely NOT get a blue screen but, the fans get dumped to minimum speed.  Do make sure you set them BACK to high speed.  Once the driver gets 'thumped' like this it may not control the card fan correctly and you can find yourself mining at around 85 to 90 C   NOT a good thing.

If you are running multiple cards, a bad event on one card may or may not affect the other but I have seen where both sets of fans got turned down during a 'recovery' so monitor your miner carefully for a few hours after you have done your tweaking to ensure stability before you head to bed for the night.

Aaron