Cryptocoin Mining?

[hawtdawg]

My OCed (860/200) _locked_ 6950s get 350MH/s. I get about 2.9 coins/day with my total hashing power (~3700MH/s) at the current difficulty.

So you should get about 0.37 coins (maybe a bit higher if you OC your unlocked 6950s) running 16 hours a day.

that's pretty far off. The calculator at current difficulty says 350 mhash would do .26 coins in a 24 hour period

 

[suklee]

On BTCguild, you would earn exactly .62/day after fees. I know this because BTCguild is now entirely share based earnings, so you earn at a completely consistent rate, unlike most pools where earnings are based on actual coins minted and thus random. The fees are a little higher than most pools, but I find the non-randomness to be a huge plus, I am earning my bitcoins at a very consistent rate.

So in other words, you would earn about 1 coin every other day, occasionally twice in two days, at current difficulty. Given the randomness of most pools, you might go 3-4 days without recieving a coin, but the overall average should be 1 coin per 2 days or better.

I've been thinking about the above. Over the last few days my rig has been mining 24/7 at ~700mhash and I have seen wild fluctuations - 0.35 per day, 0.69, then 0.38. (bitcoin.cz)

Would I be better off trying out btcguild?

 

[Chiropteran]

that's pretty far off. The calculator at current difficulty says 350 mhash would do .26 coins in a 24 hour period

He has 2 350mhash cards though. So that makes sense for 16 hours usage.

Sent from my Kindle Fire using Tapatalk

 

[Chiropteran]

I've been thinking about the above. Over the last few days my rig has been mining 24/7 at ~700mhash and I have seen wild fluctuations - 0.35 per day, 0.69, then 0.38. (bitcoin.cz)

Would I be better off trying out btcguild?

Depends on what you want really. BTCguild does charge a 5% cut, which is higher than most pools, but being entirely pay per share makes up for some of that. And of course, your payouts are 100% predictable. If you want consistent earnings it's worth trying. I mine on it on about half my miners, the others I am trying on eclipsemc. Cool thing about eclipsemc is they will payout through paypal in current average USD per BTC value. I've set my payout to 1 BTC, so each time I get paid it is also an indicator of the current BTC value.

Looking at my account, I see-
$5.99
$5.91
$5.83

Each about a day apart, my total ghash is 1.2 on eclipse right now.

 

[MrTeal]

Bah, I was away for the weekend and Guiminer got all borked up. It was still reading that it was hashing, but nothing was getting sent to the pool. Apparently there's some issues with it or poclbm. Switching to Phoenix miner seemed to fix the issue, and as an added bonus after fiddling with it to correct the poor performance with the default recommended settings, I'm now getting 340Mhash @ 1050MHz on my 6870.

Depends on what you want really. BTCguild does charge a 5% cut, which is higher than most pools, but being entirely pay per share makes up for some of that. And of course, your payouts are 100% predictable. If you want consistent earnings it's worth trying. I mine on it on about half my miners, the others I am trying on eclipsemc. Cool thing about eclipsemc is they will payout through paypal in current average USD per BTC value. I've set my payout to 1 BTC, so each time I get paid it is also an indicator of the current BTC value.

Looking at my account, I see-
$5.99
$5.91
$5.83

Each about a day apart, my total ghash is 1.2 on eclipse right now.

Do you do merged mining as well, and does eclipse pay out for the namecoins?

 

[Chiropteran]

Do you do merged mining as well, and does eclipse pay out for the namecoins?

Yeah, it mines NMC too. It looks like they will sell your NMC for BTC at the current rate at payout if you want payout fully in BTC, but I haven't had a payout yet. Should be one today actually, I'll let you know how it works.

EDIT: Yeah, it works as expected, although the BTC value of an NMC is pretty low, I guess it's nothing to get excited about.

 

[WhoBeDaPlaya]

that's pretty far off. The calculator at current difficulty says 350 mhash would do .26 coins in a 24 hour period

Check your math. The guy has 2x 350MH/s running for 16 hours. Taking your figures, that works out to be 0.3467 coins / day, so my figures are right on the money

 

[Chiropteran]

I've been working on increasing my efficiency. Instead of just overclocking for maximum mhash, I've tried to find the optimal sweet spot for mhash per watt.

2 of my systems at home are nearly identical: fx-8120 cpu, 4gb ram, 2X 5830, 80+ silver power supply. Only the motherboards are different. The 8120 probably doesn't look like the optimal CPU for a mining PC, but given the recent microcenter deals it's been very easy to buy them with cheap quality boards supporting 3+ video cards, and the idle power consumption is actually really good, which is important since the CPU is basically idle while mining.

After a lot of experimentation, I've found that the following flags work best-

clocktweak.exe" -a all -s 50 -f -c 900 -m 300 -v 1010 -y
What those mean:
50% fan speed
900mhz gpu core
300mhz mem
1.01v

End results- when mining with the computer otherwise idle, 528mhash for 277 watts from the wall, measured with a kill-a-watt. About 1.9mhash/w.

Based on the bitcoin forums I could do better with a 7970, but for the cash I've invested in these machines I can't complain at all. Based on the calculator at http://bitcoinx.com/profit/index.php I'm making about $55 profit per month (for just these 2 machines, not for all my miners) after actual electricity costs. Not bad given that the BTC value just took a dip into the lowest value for some time.

Curious to see how the 7770 stacks up, it might be a really good mining card for efficiency, and if it is available as a single slot card I could easily run 4 of them in a regular case without any special mods. I'd also love to try some 7970s, but I just blew my bitcoin fund on these systems so I won't have the funds for them for several months.

 

[MrTeal]

That sounds like a pretty reasonable system. What's your power draw at idle? I would definitely consider a BD system if one of the MC deals when I'm down in the US is the $99 FX-4100 along with a free two x16 slot ATX board.

I've been keeping an eye out for a used local card I can get on the cheap, but so far nothing's come up. There was an $80 6770 and a $100 5830, but that's it. I could see the 5830 if the price goes down or BTC goes up, but that would be a 7month payback at 24/7, and I can't justify that.

I'm kind of hoping that the 7770 comes out, is awesome and I can pick up another 6870 on the cheap to do Xfire for gaming while mining when I'm not using it.

 

[Chiropteran]

Right now it's 108W at idle, however some of that is due to the video card clocks- when you overclock 5 series AMD cards they don't drop core speed during idle, so they use more idle power than normal. I'll check it again later after a reset to see what the true idle is without the cards overclocked.

 

[Acanthus]

Coins dipped hard today on high volume, thinking about buying some on top of my continued mining.

 

[Chiropteran]

Coins dipped hard today on high volume, thinking about buying some on top of my continued mining.

Yeah, I turned off the immediate cash-out into paypal option on eclipsemc. I'd rather just save the coins, and sell later when value recovers.

 

[hdfxst]

people are panic selling because tradehill shut down https://bitcointalk.org/index.php?topic=63749.0

 

[blastingcap]

people are panic selling because tradehill shut down https://bitcointalk.org/index.php?topic=63749.0

It's not a panic selling because of TH. Get your facts straight. Paxum backed out of bitcoins and TH used them to process transactions. Anyone who was using Paxum is now screwed.

How long before Dwolla and others follow suit and cave in to government pressure?

Once you knock out Dwolla and Paxum, the value of bitcoins will be zero.

If there were a way to short bitcoins I'd short so hard right now.

 

[Chiropteran]

I've never used Dwolla or Paxum. Why are they so important?

 

[notty22]

Major Bitcoin exchange shuts down, blaming regulation and loss of funds.

 

[Zargon]

I've never used Dwolla or Paxum. Why are they so important?

dwolla is one of teh best ways to move funds with the main exchange, mtgox

 

[Joseph F]

I've been working on increasing my efficiency. Instead of just overclocking for maximum mhash, I've tried to find the optimal sweet spot for mhash per watt.

2 of my systems at home are nearly identical: fx-8120 cpu, 4gb ram, 2X 5830, 80+ silver power supply. Only the motherboards are different. The 8120 probably doesn't look like the optimal CPU for a mining PC, but given the recent microcenter deals it's been very easy to buy them with cheap quality boards supporting 3+ video cards, and the idle power consumption is actually really good, which is important since the CPU is basically idle while mining.

After a lot of experimentation, I've found that the following flags work best-

clocktweak.exe" -a all -s 50 -f -c 900 -m 300 -v 1010 -y
What those mean:
50% fan speed
900mhz gpu core
300mhz mem
1.01v

End results- when mining with the computer otherwise idle, 528mhash for 277 watts from the wall, measured with a kill-a-watt. About 1.9mhash/w.

Based on the bitcoin forums I could do better with a 7970, but for the cash I've invested in these machines I can't complain at all. Based on the calculator at http://bitcoinx.com/profit/index.php I'm making about $55 profit per month (for just these 2 machines, not for all my miners) after actual electricity costs. Not bad given that the BTC value just took a dip into the lowest value for some time.

Curious to see how the 7770 stacks up, it might be a really good mining card for efficiency, and if it is available as a single slot card I could easily run 4 of them in a regular case without any special mods. I'd also love to try some 7970s, but I just blew my bitcoin fund on these systems so I won't have the funds for them for several months.

2 of my systems at home are nearly identical: fx-8120 cpu, 4gb ram, 2X 5830, 80+ silver power supply.

nearly identical: fx-8120 cpu,

fx-8120

Aiming for efficiency, are we? :sneaky:

 

[MrTeal]

Bulldozer might be an ungodly power hog when it's running balls out, but considering that mining might require a couple % utilization on one core, it's really not a bad choice given the price.

 

[Chiropteran]

Aiming for efficiency, are we? :sneaky:

Yes I am. FX-8120 has pretty much optimal idle power consumption, and GPU mining basically leaves the CPU idle

Also, see the post above.

 

[Chiropteran]

The new 12.2 driver gave me a "free" boost of about 20mhash on my single 5830 system. I haven't updated my other boxes yet, but from the bitcoin forums it sounds like these are the drivers to use now.

http://support.amd.com/us/kbarticles/Pages/catalyst122precertifieddriver.aspx

 

[sojuhasu]

Hey guys,
I am a noob at bitcoin mining here. Basically my situation is that I am a work student for university which means that all my wages go toward paying for my tuition and boarding leaving about 50 dollar in my paycheck. This means that even a ten dollar payout every 2 weeks would be a substantial increase of my disposable income.

Given the following condition :
- Electricity is free (dorm)
- My computer is on 24 hours (thats just the way I like it)
- I certainly will be using the computer for everything else but on a typical day I dont game much, only at weekends.
- Budget will be at about 500$ plus whatever I can sell my 7 months old HD6870 for.
- I want the card to be almost silent when mining

What would be the best card I should buy ?
What kind of payout I can expect with it ?
I am thinking of either 7950 or 7970 right now.
I am not looking for it to pay for itself. The card is there for me to play games with (at 1080p). But every extra dollar it can create to help me paying it would help.

 

[thilanliyan]

^Maybe going for a 7950 or 7970 is not a smart idea if you have very little disposable income.

Find a used 6950 or 6970 if you can.

 

[MrTeal]

Hey guys,
I am a noob at bitcoin mining here. Basically my situation is that I am a work student for university which means that all my wages go toward paying for my tuition and boarding leaving about 50 dollar in my paycheck. This means that even a ten dollar payout every 2 weeks would be a substantial increase of my disposable income.

Given the following condition :
- Electricity is free (dorm)
- My computer is on 24 hours (thats just the way I like it)
- I certainly will be using the computer for everything else but on a typical day I dont game much, only at weekends.
- Budget will be at about 500$ plus whatever I can sell my 7 months old HD6870 for.
- I want the card to be almost silent when mining

What would be the best card I should buy ?
What kind of payout I can expect with it ?
I am thinking of either 7950 or 7970 right now.
I am not looking for it to pay for itself. The card is there for me to play games with (at 1080p). But every extra dollar it can create to help me paying it would help.

Do you have two PCIe x16 slots, and what else is in your system? I'm running a 6870 at 330-340MHash/s with an Arctic Cooling Accelero Twin Turbo II. It's not silent while mining, but it's not any more noticeable than the case fans.

If the rest of your system is decent enough for what you use it for, I'd just pick up another 6870 for $150 and invest another $50 on aftermarket coolers. That would give you a good boost for gaming, and the mining performance would be about the same as a single 7970.

 

[Chiropteran]

Hey guys,
I am a noob at bitcoin mining here. Basically my situation is that I am a work student for university which means that all my wages go toward paying for my tuition and boarding leaving about 50 dollar in my paycheck. This means that even a ten dollar payout every 2 weeks would be a substantial increase of my disposable income.

Given the following condition :
- Electricity is free (dorm)
- My computer is on 24 hours (thats just the way I like it)
- I certainly will be using the computer for everything else but on a typical day I dont game much, only at weekends.
- Budget will be at about 500$ plus whatever I can sell my 7 months old HD6870 for.
- I want the card to be almost silent when mining

What would be the best card I should buy ?
What kind of payout I can expect with it ?
I am thinking of either 7950 or 7970 right now.
I am not looking for it to pay for itself. The card is there for me to play games with (at 1080p). But every extra dollar it can create to help me paying it would help.

The *best* card you should buy (ignoring cost) would be the 7970, simply because it's the best single card out there. But if your budget is really as constrained as you say it is, you might be better off with a lesser upgrade, or no upgrade at all just keeping your 6870.

As far as mining, 7970 puts out something like 680mhash, vs 400mhash on a 6970, or 280mhash on a 6870 (as you have).
https://en.bitcoin.it/wiki/Mining_hardware_comparison


According to the profit calculator, you might make $65/month on average if you can get 680mhash out of a 7970 and your electricity cost is 0.

http://bitcoinx.com/profit/index.php

But keep in mind that number will go down due to difficulty increases, may go up or down further due to BTC value fluctuation, etc. Also, I am not sure where exactly the 680mhash value is derived from, it may be based on running the card highly overclocked and overvolted and your stock mhash may be a bit lower. Especially given [ I want the card to be almost silent when mining], you will probably not be able to mine at full speed as that would require the fan to run fairly fast to keep the card cool. My guess is that the 7970 could run very quiet if you under-volt and under-clock it, given it's superior process.


Basically, this is your decision and it's only up to you and nobody else how to spend your money. Some would say to save more cash if your income is so low, but it's really your decision. My advice as either go all the way and get a 7970, or just keep your 6870- it is still a reasonably strong card for today's games and it can mine bitcoins just the same.