Cryptocoin Mining?

[OVerLoRDI]

Seems like it. People are listing them on ebay for $200+ now.

5870s are priced very high right now. Then 5850s became the next big thing. Then 5830s had their moment. The best card to buy in regards to $/Mhash is always changing.

 

[Powermoloch]

Hopefully I'll get lucky on this trend for the mean time, and upgrade a new card ^_^;

 

[dakU7]

I don't know why the 5770's are being ignored of. Picked two for 85$ each, they can get up to 230Mhash/s. That's 2.7Mhash/$.

 

[gorobei]

amd kind of lucked out when fermi didnt show up on time.

the large installed base of evergreen gen users and used card market wouldnt exist if a proper fermi (gtx580) was available in q4 2009. the integer advantage kinda gives them a massive advantage in the upcoming 28nm cards, the value add of being able to make money off of your gpu could really sway future purchasing decisions.

 

[chihlidog]

I don't know why the 5770's are being ignored of. Picked two for 85$ each, they can get up to 230Mhash/s. That's 2.7Mhash/$.

I thought about adding one to my rig to mine with, but I decided I'm not confident enough in the currency to spend anything on it.

 

[NoStateofMind]

Well after 24hrs my overwhelmed, overclocked and underachiever of a 4890 has produced .126 BTC. At this rate it will take me 8 days for one BitCoin and roughly 4 per month.

 

[v8envy]

Wow, seems like you're borderline losing money there -- if your rig used $2 in power then you're down a quarter dollar, in fact. At least you're better off than that poor schmuck that bought a tesla 2050 for $2000 to do this before doing research: http://forum.bitcoin.org/index.php?topic=13730.0

At 561 Mhash/sec I'm churning out .7 to 1 btc a day, depending on luck (a few 3 hour .01 btc sessions can really put a dent in the daily take). Still, .125 seems a bit low. Try switching pools to one of the 'equal share' ones like btcguild, see if your payouts improve.

 

[NoStateofMind]

Wow, seems like you're borderline losing money there -- if your rig used $2 in power then you're down a quarter dollar, in fact. At least you're better off than that poor schmuck that bought a tesla 2050 for $2000 to do this before doing research: http://forum.bitcoin.org/index.php?topic=13730.0

At 561 Mhash/sec I'm churning out .7 to 1 btc a day, depending on luck (a few 3 hour .01 btc sessions can really put a dent in the daily take). Still, .125 seems a bit low. Try switching pools to one of the 'equal share' ones like btcguild, see if your payouts improve.

I am. This 4890 just doesn't cut it. Are you apart of a pool?

 

[Acanthus]

I am. This 4890 just doesn't cut it. Are you apart of a pool?

I'm running a 4890 in one rig and 6850 in the other. The 6850 is more than double the MHash/sec of the 4890. (~90 vs ~220)

 

[Chiropteran]

Kicking myself for not buying last night when they dropped at $12, back to about $19 now.

I reshuffled my video cards a bit.

Original-

Gamer PC w/ 6970 mining when not used to game
Dedicated purpose-built miner w/ 2x5830
Dedicated re-purposed miner w/ 1x5850
Den PC w/ 5770 mining 100%

This was giving me some decent MHash, seemed like around 2 BTC/day, but my "gamer pc" had multiple pcie-16 slots and I felt it was wasting it's potential by running just a single card.

So I bought 1 more 5830, and 2 more 5850s. So 1 and 2 are now revised:

Gamer PC w/ 3x5830 2x mining 100% at -f1, other at -f128 so as to allow for gaming/desktop acceleration
Dedicated purpose-built miner w/ 2x5850

Net gain of almost 400 MHash/s with the 6970 idle, if I complete the change by putting it into the den PC it'll be a 600MHash/s gain.

 

[dakU7]

Where did you manage to buy 5830? I'm on the hunt for one with a normal price tag for some time now.

 

[Chiropteran]

Where did you manage to buy 5830? I'm on the hunt for one with a normal price tag for some time now.

2 were from the $109 deal at newegg, the 3rd was $128~ from amazon but those sources are all sold out now. I think it might be at the point where the 6950 or 5770 are the best deals, depending how much you want to pay per card. 5 series is just so completely sold out that the few you can find are overpriced, other than the 5770 which still seems to be in good supply.

 

[NoStateofMind]

Well after 24hrs my overwhelmed, overclocked and underachiever of a 4890 has produced .126 BTC. At this rate it will take me 8 days for one BitCoin and roughly 4 per month.

I've done some calculations on costs to run. My 4890 uses 190w and I pay .086 cents per kWh. That equals .39 cents a day and $11.76 per month. If I generate 4 BitCoins per month the value would have to stay ~$3 each to break even. Right now the exchange rate is $21/BTC which would give me ~$70 profit. With difficulty increasing we should see an appreciation as well but BitCoin output will drop

 

[v8envy]

I've done some calculations on costs to run. My 4890 uses 190w and I pay .086 cents per kWh. That equals .39 cents a day and $11.76 per month. If I generate 4 BitCoins per month the value would have to stay ~$3 each to break even. Right now the exchange rate is $21/BTC which would give me ~$70 profit. With difficulty increasing we should see an appreciation as well but BitCoin output will drop

I don't think you're doing it right. My 5830s are not as power hungry as a 4890, and in system with power supply inefficiencies they're drawing about 600 watts between the two of them. Don't guestimate from the marketing specs of the card, go outside and note what's on your electric company meter. Check again every 12 hours, keep a log. If not much is on in the house you'll get a very good idea of what your rig is actually costing in power.

Also, the rate per kw/hr may be 9c, but look on your final bill. You'll probably see taxes and fees at around 30%.

My 2x5830s are costing me $2.50 per bit coin including cooling. I may wind up trading BTC more than mining, they are definitely showing very clear trading patterns. I've earmarked half of the proceeds to re-invest in new mining hardware (since really that's what this bitcoin hobby is about for me, a justification to get more interesting hardware, build a case, figure out dual psu, play with opencl, etc). Money wise I'd be better off cancelling housekeeping and cleaning my own house as opposed to paying someone to do it when it comes to the cost of bitcoins in my time.

As far as price of bitcoins rising: everyone is aware of approximately when and how much difficulty will increase. That's already being priced in.

 

[Acanthus]

wow btc is rallying hard now.

 

[v8envy]

I am. This 4890 just doesn't cut it. Are you apart of a pool?

Yes, it's not practical to solo mine unless you have a couple hundred Ghash/sec. If you hit one of the blocks that a 1.5 terahash pool chews on for 3 hours you'll probably never see a single bit coin mining with one machine. That's just way too risky.

I'm trying every pool. So far btcguild is my favorite. If you look at statistics the current compute power is about 30% each in deepbit, slush and btcguild, with 10% for everything else.

 

[v8envy]

wow btc is rallying hard now.

I'm convinced BTC price is being manipulated. The BTC markets are exactly like eve online in-station markets, for the exact same reasons. With the tiny amount of $ being traded there greenmail is definitely part of the picture. I expect a $15-$30 trading range for a few weeks.

 

[NoStateofMind]

I don't think you're doing it right. My 5830s are not as power hungry as a 4890, and in system with power supply inefficiencies they're drawing about 600 watts between the two of them. Don't guestimate from the marketing specs of the card, go outside and note what's on your electric company meter. Check again every 12 hours, keep a log. If not much is on in the house you'll get a very good idea of what your rig is actually costing in power.

Also, the rate per kw/hr may be 9c, but look on your final bill. You'll probably see taxes and fees at around 30%.

My 2x5830s are costing me $2.50 per bit coin including cooling. I may wind up trading BTC more than mining, they are definitely showing very clear trading patterns. I've earmarked half of the proceeds to re-invest in new mining hardware (since really that's what this bitcoin hobby is about for me, a justification to get more interesting hardware, build a case, figure out dual psu, play with opencl, etc). Money wise I'd be better off cancelling housekeeping and cleaning my own house as opposed to paying someone to do it when it comes to the cost of bitcoins in my time.

As far as price of bitcoins rising: everyone is aware of approximately when and how much difficulty will increase. That's already being priced in.

According to this website I actually over estimated. Sure I could get more accurate but honestly how far off could I be? BitCoins would have to tank big time (which isn't out of possibilities) for even a small profit not to be made. This calculation wasn't meant to be wholly accurate just round about. To pay $2.50 per BTC is pretty good and I may encroach upon $4 myself simply because of the inefficiency of my 4890.

 

[note235]

finally got everything to work lol

 

[NoStateofMind]

finally got everything to work lol

Nice! What are you pulling down MHash/s wise?

 

[note235]

ill put that up asap
5830
5870

and 6950 coming wednesday

 

[Darkstar757]

I need two 6990s anyone know where to find them?

 

[Acanthus]

I'm convinced BTC price is being manipulated. The BTC markets are exactly like eve online in-station markets, for the exact same reasons. With the tiny amount of $ being traded there greenmail is definitely part of the picture. I expect a $15-$30 trading range for a few weeks.

I would have to see a pattern before i would be convinced. I think there was a selloff because of the initial price-slide and it is just rebounding to normal levels based on difficulty.

 

[NoStateofMind]

I need two 6990s anyone know where to find them?

Ebay? <shrug>

 

[hawtdawg]

The dropoff was caused by someone moving like 17000 bitcoins yesterday. There was also a problem with dwolla xfers to/from mtgox that likely didn't help anything.