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Bitcoin Discussion Thread

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Got my 6950s in yesterday. One of them artifacts with stock clocks and BIOS and idle GPU

The other is fine, I unlocked the shaders and over/underclocked to 920MHz/344MHz and am getting 390mhash from the one GPU. Have to RMA the second card and wait :/
 
So... What happens when you pay for something physical (say a used computer or something) in bitcoin and the person you paid never sends what you paid them for?
 
howcome the bitcoin client keeps changing my wallet id?
 
Uncle Humjaba said:
So... What happens when you pay for something physical (say a used computer or something) in bitcoin and the person you paid never sends what you paid them for?
Click to expand...

Same thing can be pretty much said for using dollar bills. Sure you can use a credit card but that is a service on top of the currency.

Purely speculation but if BTC was to continue and survive, there would surely be services that would handle this.

Afterall ebay is only usable because you have a chance to get your money back.
 
Uncle Humjaba said:
So... What happens when you pay for something physical (say a used computer or something) in bitcoin and the person you paid never sends what you paid them for?
Click to expand...

you've been scammed, that's why they have middlemen like clearcoin for bitcoin transactions, the fee is worth the security...
 
gigatexal said:
howcome the bitcoin client keeps changing my wallet id?
Click to expand...

every time you receive bitcoins it will do that, you can still receive with the old one, but if you want greater anonymity you can use a different wallet address for each transaction where you receive bitcoins...
 
gigatexal said:
howcome the bitcoin client keeps changing my wallet id?
Click to expand...

wol-va-rine said:
every time you receive bitcoins it will do that, you can still receive with the old one, but if you want greater anonymity you can use a different wallet address for each transaction where you receive bitcoins...
Click to expand...

Check your address book in the client for the a list of all your addresses.
 
hrm, sounds like we should ask for a BTC trading forum where BTC is requested for items instead of cash, It could be pure speculation, but might entice some sellers and lots of buyers. Or maybe a BTC auction for items.... More avenues to convert coins to goods... and the price will only continue to go up.
 
jiminator said:
hrm, sounds like we should ask for a BTC trading forum where BTC is requested for items instead of cash, It could be pure speculation, but might entice some sellers and lots of buyers. Or maybe a BTC auction for items.... More avenues to convert coins to goods... and the price will only continue to go up.
Click to expand...

I believe the blessing has been given on the FST forum to buy and sell with bitcoins already.
 
Parja said:
I believe the blessing has been given on the FST forum to buy and sell with bitcoins already.
Click to expand...

yep, the slew of 5830s that one guy was selling included a cash price and a bitcoin price, but he wavered on the hard bitcoin price and said that the bitcoin amount would be calculated at the time of sale using the Mt Gox exchange rate IIRC...
 
Got two more 5830's. I don't really expect to make money off of them but if I can sell them for $70 sometime in the summer then it's not too bad for a chance to play with more hardware.
 
BitCoin nub here: Are 5830s the best price/performance ratio for mining or something? Seems like 5830/5850s are the ultimate cards to have for mining.
 
A 5830 is as good as a 6870 for mining and the 5850 is as good as a 6950 once you overclock. At prices like these they are the only way to go.
 
there is a chart somewhere that shows how many BTC each card can produce per day. You have to divide the cost of the card by the value of the generated BTC to determine how many days it will take to pay off the card. For instance, a 6970, @ ~.5 BTC/day (~$10) will take some 35 days to pay off. Of course the formula will change depending on how the value of BTC changes and if/when difficulty increases. If difficulty does increase and price does not increase a corresponding amount then it might make mining unprofitable.... for a time.
 
does mining take less load than running a game?
if so then i might not swap out my psu just yet,
 
I read an earlier post where someone was running two pretty heavy GPUs and he was only pulling 500W from the wall, so that leads me to think yes, but I don't recall which GPUs he was running.
 
ohh i guess ill put a radeon 6970 + 6950 + 5830 in a corsair hx 750?
 
The way I look at it is even at the next difficulty increase (49%) I'll have 2200mhash going, so even at $5 per bitcoin the new cards will be paid off in one month max. At $15 per bitcoin, it will take ten days.

My cost is so low because I already have machines to throw the cards in so I don't need to buy other parts.
 
I think I'm gonna need to pick up an new psu for when I try to run 2 5830s and a 5770 in 1 machine. Don't think my earthwatts 650 will be up to the task since it will have to power an i7 too.
 
computerpro3 said:
The way I look at it is even at the next difficulty increase (49%) I'll have 2200mhash going, so even at $5 per bitcoin the new cards will be paid off in one month max. At $15 per bitcoin, it will take ten days.

My cost is so low because I already have machines to throw the cards in so I don't need to buy other parts.
Click to expand...

How many cards are you running per machine? I'm wondering how hot these will get sandwiched together in a quad setup.
 
Vediovus said:
I think I'm gonna need to pick up an new psu for when I try to run 2 5830s and a 5770 in 1 machine. Don't think my earthwatts 650 will be up to the task since it will have to power an i7 too.
Click to expand...

I'm going to try to run 2 overclocked 5830's on a CX400 and 2 more on a CX430 :p

If it goes boom, it goes boom. Luckily the rest of the system are low power AMD setups.
 
burningrave101 said:
How many cards are you running per machine? I'm wondering how hot these will get sandwiched together in a quad setup.
Click to expand...

I have 2 6970's in my desktop now, and I'll have 2 5830's in my HTPC, and 2 5830's in my WHS. Should be nice and cool. The HTPC is the one that worries me - I may have to leave the top off the case but if I do that it will be fine.
 
note235 said:
does mining take less load than running a game?
if so then i might not swap out my psu just yet,
Click to expand...

I think it takes more of a load than gaming, basically your GPU is running 96%-100% all the time when mining, I can't think of a game that loads a GPU that much, especially a CF configuration (two cards pulling almost 100% load at all times)...
 
i was thinking of that also but i've read that people have measured and it draws less power?
its quite weird to me actually
 
I have a power meter coming in as well, being delivered today. I'll post the power draw of all my setups for reference.
 
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