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post #51 of 21768
Hmm, it seems prohibitive to jump into this without a farm straight away, gpu's will just continue to pull less coins per week if I'm reading this stuff right.

With the exception of free power, won't GPU's become to expensive to run vs the profit from mining?
post #52 of 21768
Quote:
Originally Posted by Faster_is_better View Post

Hmm, it seems prohibitive to jump into this without a farm straight away, gpu's will just continue to pull less coins per week if I'm reading this stuff right.

With the exception of free power, won't GPU's become to expensive to run vs the profit from mining?

Basically correct. ASIC miners will make GPU mining unsustainable due to the increase in difficulty. You might be able to concoct a very elaborate, power efficient farm, but TBH I doubt you would ever return your investment. I started mining in the last few months because being a college student in a dorm where I don't pay for power will not last forever, so I'm gonna wring this place for every penny I can.
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post #53 of 21768
Quote:
Originally Posted by alcal View Post

Precisely. They are custom silicon which only handles instructions necessary for bitcoin mining. They are mostly vaporware so I wouldn't buy one if I were you. Here is a quick summary of ASIC's vs GPU's for mining:

ASIC:
Pros:
Faster than anything out there $ for $
Use less power per hash
Cons:
Some manufacturers (such as Butterfly Labs) might actually be scams, or at the very least, might not ever successfully ship a product.
Since they are custom silicon made for coin mining, they have no resale value if the currency fails

GPU:
Pros:
Cheap(ish)
Readily available
Can be used for other awesome things such as gaming, F@H, etc.
Cons:
They use almost precisely as much power as they return in coin currency, so you might not be making any profit at all.


So we should avoid butterfly labs?


I started running this the other night on my 3x 7950s but shortly after turned it off because they were pulling 1000W by themselves and all 3 shot up to just over 90c lol

I was considering one of the ones from butterfly labs but if they are bad news then I guess that's out
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post #54 of 21768
Quote:
Originally Posted by Blindsay View Post

So we should avoid butterfly labs?


I started running this the other night on my 3x 7950s but shortly after turned it off because they were pulling 1000W by themselves and all 3 shot up to just over 90c lol

I was considering one of the ones from butterfly labs but if they are bad news then I guess that's out

lol WC or open side of case and use a Box fan lol.
    
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post #55 of 21768
Quote:
Originally Posted by Hokies83 View Post

lol WC or open side of case and use a Box fan lol.

gpus are non reference so id have to use universal blocks :/


even if I could get the temps In check, the electricity would cost me approx. $90/month running 24/7 and I was getting about 1.5GH/s so i'm not sure if I would break even or not
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post #56 of 21768
Quote:
Originally Posted by Blindsay View Post

gpus are non reference so id have to use universal blocks :/


even if I could get the temps In check, the electricity would cost me approx. $90/month running 24/7 and I was getting about 1.5GH/s so i'm not sure if I would break even or not

You will profit still.. Try to get around 1200mhz at 1.2v or less.. turn memory volts down to 1.5 and leave it stock.

This will get you 600 Mh/S x 3 = 1800 Mh/S Use flags -v -w 256 -f1 will give a 30 mh/s bump.

And from what i hear WC amd cards is the ticket.. the Power use should go down and OC should be higher...

I just got some of these in for my 2nd mining rig today.

    
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post #57 of 21768
so I've read through this whole thread and tried to set it up, I'm not sure what I need to do with the AMD SDK, so I kinda just let that go (I'm thinking thats my problem)

and I'm now trying to run GUI miner and I can find my GPU just the 3570 (actually found this twice) and somethign called "Barts" Which wont connect.

any Ideas?

Edit: and what server should I be using, I saw the chart but what are the benefits of each?
Edited by Jim888 - 6/6/13 at 4:43pm
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post #58 of 21768
Quote:
Originally Posted by Blindsay View Post

gpus are non reference so id have to use universal blocks :/


even if I could get the temps In check, the electricity would cost me approx. $90/month running 24/7 and I was getting about 1.5GH/s so i'm not sure if I would break even or not

There are calculators which take all of that into account. Can't remember the url's though. You never know, you might be in the green a little bit, but idk if it's worth it. For me to run both of my Vapor-X's at the same time, I have ghetto rigged a Silverstone AP181 + some random 120mm fan to hang next to my GPU's, no side panel, front fans pulling air away and GPU fan's set to 100%. It's loud, but If I'm not here and the room is cold it works out nicely.

On the topic of Butterfly Labs (henceforth known as BFL): I didn't look into them too much as I don't really have money to drop on an ASIC even if I were convinced that I would ever get one, but here is the last I heard about them. People who ordered almost a year ago have yet to receive their miners. A very small shipment of miners went out to some reviewers (sketchy ones at that). They claim that they have had to redesign it a few times to make it hit the market hashrate. Nobody really knows if it's bogus or not, but there are a lot of people who have trusted BFL with their money and have not received anything. Their products are certainly vaporware, but it's really anybody's guess whether or not they will ship anything.
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post #59 of 21768
Thread Starter 
Quote:
Originally Posted by Blindsay View Post

So we should avoid butterfly labs?


I started running this the other night on my 3x 7950s but shortly after turned it off because they were pulling 1000W by themselves and all 3 shot up to just over 90c lol

I was considering one of the ones from butterfly labs but if they are bad news then I guess that's out

You're doing it wrong...downvolt the core to 1.1v and mine litecoins not bitcoin.
Memory voltage at 1.6v is fine, just oc it to 1500 and keep core at 1050. Try guiminer-scrypt first...A side exhaust is a good idea for non ref, or open the case and have a box fan point towards it.
post #60 of 21768
Quote:
Originally Posted by alcal View Post

Quote:
Originally Posted by Blindsay View Post

gpus are non reference so id have to use universal blocks :/


even if I could get the temps In check, the electricity would cost me approx. $90/month running 24/7 and I was getting about 1.5GH/s so i'm not sure if I would break even or not

There are calculators which take all of that into account. Can't remember the url's though. You never know, you might be in the green a little bit, but idk if it's worth it. For me to run both of my Vapor-X's at the same time, I have ghetto rigged a Silverstone AP181 + some random 120mm fan to hang next to my GPU's, no side panel, front fans pulling air away and GPU fan's set to 100%. It's loud, but If I'm not here and the room is cold it works out nicely.

On the topic of Butterfly Labs (henceforth known as BFL): I didn't look into them too much as I don't really have money to drop on an ASIC even if I were convinced that I would ever get one, but here is the last I heard about them. People who ordered almost a year ago have yet to receive their miners. A very small shipment of miners went out to some reviewers (sketchy ones at that). They claim that they have had to redesign it a few times to make it hit the market hashrate. Nobody really knows if it's bogus or not, but there are a lot of people who have trusted BFL with their money and have not received anything. Their products are certainly vaporware, but it's really anybody's guess whether or not they will ship anything.

https://bitclockers.com/calc

Not sure how accurate, but it might give a rough estimate as to profitability.
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