Cryptocoin Mining?

[markyh]

My 7950s do 625 MH/S with my Overclocks. And -v -w 256 -f1 Flags.

Yeah but what's your m/h per watt? I could get over 600m/h on my 7950 but with 1.2mv right up for maxed GPU speed I pull 300 watts.

However with downclocked and down volted memory, I can acheived 500m/h @ 1.009mv which only draws 200 watts.

This gives me 2.5m/h per watt. Which is key in BTC mining. Not the same for LTC mining.

M

 

[hokies83]

Boost card 1.25v and m power rate is 010 KWH

With under clocked ram. running 38c

 

[Binky]

Yeah but what's your m/h per watt? I could get over 600m/h on my 7950 but with 1.2mv right up for maxed GPU speed I pull 300 watts.

However with downclocked and down volted memory, I can acheived 500m/h @ 1.009mv which only draws 200 watts.

This gives me 2.5m/h per watt. Which is key in BTC mining. Not the same for LTC mining.

M

Try 0.95v at 950mhz on the 7950. That's where I run mine when it gets warm in the room. They do around 500mhash at that speed.

 

[ultimatebob]

Grr... Bitcoins and Litecoins are getting too difficult to produce to make a worthwhile profit on a single computer.

Does anyone know of any cool new cryptocurrencies that start mining now in the hopes that they take off later?

Most of the stuff I see are Bitcoin and Litecoin clones, but nothing that seems all that innovative.

 

[michal1980]

so could a 7950 bought now, pay for itself in ~4 months?

 

[philipma1957]

so could a 7950 bought now, pay for itself in ~4 months?

no or maybe. if you are doing mining and not much gaming a 2 card setup of 2 hd7790's works better. cost is a little under 300 for the 2. they will pull 160 watts the rest of the pc pulls 40 total watts about 200 you will hash at 600 with the 2.

I have a 4 card setup on one board it hashes at 1200 and pulls 380 watts. this is better then 3 to 1 . now a hd7790 will not fly on games but for a 2 3 or 4 card bit coin setup nothing is better. This is assuming you are paying for power. if you have free power that is a different story.

 

[laspariahs]

so could a 7950 bought now, pay for itself in ~4 months?

Yes, probably. My 7970s have already paid for themselves and then some. Plus mining is sort of enjoyable.

 

[michal1980]

no or maybe. if you are doing mining and not much gaming a 2 card setup of 2 hd7790's works better. cost is a little under 300 for the 2. they will pull 160 watts the rest of the pc pulls 40 total watts about 200 you will hash at 600 with the 2.

I have a 4 card setup on one board it hashes at 1200 and pulls 380 watts. this is better then 3 to 1 . now a hd7790 will not fly on games but for a 2 3 or 4 card bit coin setup nothing is better. This is assuming you are paying for power. if you have free power that is a different story.

power is ~11cents a kwh.

and I have a gaming pc with a 2500k that I'm currently not using for gaming. bf4 is coming out this year, and I'd like to get a good video card then. If my pc can pay for it so much the better

heres my motherboard

http://www.asrock.com.tw/mb/Intel/Z68 Extreme3 Gen3/

 

[birthdaymonkey]

I removed the GTX 670 that was the primary GPU in my main rig (so that I can sell it to buy an AMD card ). Now when I'm mining on my 7790 as the sole GPU, I get checkerboard artifacts in Firefox but no other programs. Doesn't matter if it's stock or 1200MHz, and when I stop mining the artifacts stop.

Anyone else experience similar?

 

[blastingcap]

so could a 7950 bought now, pay for itself in ~4 months?

Probably not because everyone else is buying up or turning on GPUs and ASICs are over 10 times more powerful per watt. You can probably make a little money on it before the door slams shut on GPU mining, but not enough to pay for itself. And this assumes the price doesn't crash again, which it might. It was possible to make money in the past, but these days, it's gotten so much harder... like the first guy to discover gold in a river probably made money, but after 10000 other people joined him looking for gold, it's gotten unprofitable and the only guy making money is the guy selling pickaxes and jeans at the general store.

 

[dualsmp]

I removed the GTX 670 that was the primary GPU in my main rig (so that I can sell it to buy an AMD card ). Now when I'm mining on my 7790 as the sole GPU, I get checkerboard artifacts in Firefox but no other programs. Doesn't matter if it's stock or 1200MHz, and when I stop mining the artifacts stop.

Anyone else experience similar?

I had artifacts with 13.1 drivers with everything, but 12.9 drivers are peachy with no artifacts when mining, so you might try some of the older 12.x drivers to see if it helps.

 

[PrototypeZ]

It was possible to make money in the past, but these days, it's gotten so much harder... like the first guy to discover gold in a river probably made money, but after 10000 other people joined him looking for gold, it's gotten unprofitable and the only guy making money is the guy selling pickaxes and jeans at the general store.

Excellent analogy. Wish some of the folks from the bitcoin forum could hear that. The Asicminer project/company is slowly auctioning off hardware. My kind advice to select a pricing model was returned with retarded shareholders with blind greed chanting that they should only maximize profit through their turtle auctions.

The economics dictate that others are coming to market and will take market share from them over time and diminish returns. By the time they come to this conclusion and start to ramp up their equipment sales for miners, there will be plenty of other stores selling the same stuff.

 

[PrototypeZ]

I had artifacts with 13.1 drivers with everything, but 12.9 drivers are peachy with no artifacts when mining, so you might try some of the older 12.x drivers to see if it helps.

Agreed. I have heard of other folks having artifacts on certain model 7xxx series cards with 13.1. Older versions seem to not exhibit the issue. I would also caution to research the 12.x releases to see which one provides the best hash rate for the card.

 

[hokies83]

Last Trade 118
Best Bid 118.50001
Best Ask 118.69


yay!

 

[chimaxi83]

Last Trade 118
Best Bid 118.50001
Best Ask 118.69


yay!

Blah, I sold 10 early this morning at $97, poor me lol

 

[canadiantrex]

Is anyone else having difficulty logging in to BTC-e?

I'm unable to login, reset my pass, or create a new account. For logging in, it just takes me back to the trading screen without actually logging me in. For resetting password or creating a new account, the captcha fails every time.

*edit* Problems resolved suddenly. Very odd.

 

[michal1980]

Probably not because everyone else is buying up or turning on GPUs and ASICs are over 10 times more powerful per watt. You can probably make a little money on it before the door slams shut on GPU mining, but not enough to pay for itself. And this assumes the price doesn't crash again, which it might. It was possible to make money in the past, but these days, it's gotten so much harder... like the first guy to discover gold in a river probably made money, but after 10000 other people joined him looking for gold, it's gotten unprofitable and the only guy making money is the guy selling pickaxes and jeans at the general store.

i'm not trying to sound like an ass, but I asked a similar question a few months ago, and was told the same thing about this ASIC's.


I geuss a better question I should ask.

Is what's the best video card or combination of cards to buy right now if I'm going to risk it? (ie bang for buck)

 

[pandemonium]

I really wouldn't just for mining. If you're going to be gaming, and using it on the side to mine, even then it's difficult to recommend investing in too.

If you're really gun-ho about this, then refer to this list to get started: https://en.bitcoin.it/wiki/Mining_hardware_comparison

Which card you're going to get would then go in conjunction with what your requirements are for gaming as well as your budget.

 

[birthdaymonkey]

Agreed. I have heard of other folks having artifacts on certain model 7xxx series cards with 13.1. Older versions seem to not exhibit the issue. I would also caution to research the 12.x releases to see which one provides the best hash rate for the card.

Yeah, I was thinking it might be a driver issue. Problem is there's only one set of working drivers for the 7790 - the "12.10 7790 performance drivers" that ship with the card. Hopefully they get it sorted by the next WHQL release, which should hopefully also include full support for Bonaire.

In the mean time, I guess I'll just use Chrome. Firefox is the only program that gives me trouble that I've found so far.

The card mined all night at 1200MHz and averaged 300mhash, so I know it's working fine otherwise.

 

[philipma1957]

i'm not trying to sound like an ass, but I asked a similar question a few months ago, and was told the same thing about this ASIC's.


I geuss a better question I should ask.

Is what's the best video card or combination of cards to buy right now if I'm going to risk it? (ie bang for buck)

3x 7790's on a board that can do 3 cards

 

[wand3r3r]

3x 7790's on a board that can do 3 cards

That's the most efficient, but if you have free or cheap power the 7950/70 could be better?

 

[philipma1957]

That's the most efficient, but if you have free or cheap power the 7950/70 could be better?

Absolutely, but remember a hd7790 is 150 or so a hd7950 is 300 and a hd 7970 is 400.

So there is a lot to weigh if you want mining only vs some gaming. If you have a 2 card mobo. vs a 3 or 4 card mobo.

So picking what you want can be tricky.

I have some 1 card setups mitx with 7970's that can game or mine. I used coolermaster elite 120 case's.

I have open board miner only setups.

A lot depends on miner only vs gamer/miner.

Also a lot depends on your access to a good cheap mobo.



Here is a great mobo to mine or game but it costs. 260

http://www.newegg.com/Product/Produc...82E16813128552

this can run 3x hd7970's hash at 1500- 1600 underclock 500-550 watts

or 4x hd 7790's hash at 1200 locked volts watts 380


so if you get a i5 3770k this mobo and 1 hd7970. like I did in nov then add a second and then a third 7970. you can have a great miner /gamer.

 

[michal1980]

Absolutely, but remember a hd7790 is 150 or so a hd7950 is 300 and a hd 7970 is 400.

So there is a lot to weigh if you want mining only vs some gaming. If you have a 2 card mobo. vs a 3 or 4 card mobo.

So picking what you want can be tricky.

I have some 1 card setups mitx with 7970's that can game or mine. I used coolermaster elite 120 case's.

I have open board miner only setups.

A lot depends on miner only vs gamer/miner.

Also a lot depends on your access to a good cheap mobo.



Here is a great mobo to mine or game but it costs. 260

http://www.newegg.com/Product/Produc...82E16813128552

this can run 3x hd7970's hash at 1500- 1600 underclock 500-550 watts

or 4x hd 7790's hash at 1200 locked volts watts 380


so if you get a i5 3770k this mobo and 1 hd7970. like I did in nov then add a second and then a third 7970. you can have a great miner /gamer.

for the next few months, this will just be a miner machine, that is currently just sitting ideal the mobo has the following pice config. So I'm geussing at most I can run 2 video cards to mine.

2 x PCI Express 3.0 x16 slots (PCIE2/PCIE4: single at x16 (PCIE2) / x8 (PCIE4), or dual at x8 (PCIE2) / x8 (PCIE4))
- 2 x PCI Express 2.0 x1 slots.

I have some other pc's that are sitting around. But right now, I dont remember what they have.

cpu is a i2500k. But from what I know that doesn't matter much.

So for the lowest cost/max benefit. I'm thinking either 2x 7790 cards, or 1 7950 (trying to keep the cost to ~300 dollars for the cards at this time, until I get more into it).

 

[Binky]

Best per slot = 7970 @ $400
Best value per slot = 7950 @ $300
Best per watt, ignoring slots = 7790 @ $130

The 7850 is also a decent contender at somewhere between 300-350mhash.

Also, keep in mind that two cards in the same machine will generally not do 200% of the one card hash rate, assuming that you care about heat and card life. There's just more heat that you have to deal with. If they are not in a case and even better, on risers, then you can do 200%. But realistically, the top card (or both cards) will have to be detuned a little to maintain anywhere near the same temps as the single card setup. I haven't run a dual 7790 setup, but I imagine that the temps there are much better than a dual 7950/7970 setup (but the hash rate is much lower too!).

 

[thilanliyan]

^Yeah, I stuck a 6950 in with my 7950s and everything just became much hotter so I took it out. Now there's at least a slot between each of my 7950s and things are running cooler, but mostly because I have them undervolted to 0.975v at 925MHz.