Cryptocoin Mining?

[Pooptacular]

how many 7970's could I fit into a mobo and use for bitcoin? I havent read about this stuff since bitcoin was at like 10 bucks or so. Am I right in thinking 4 is the max?

 

[Binky]

Whys that?

Because it seems to be $10-$20 overpriced when I look at the ladder of gaming cards. The 7770 is about $100 on sale, and the 7850 is about $150 on sale. The 7790 seems like a $130 card, not $150.

 

[Binky]

Im pretty new to bitcoin mining but i have ran into some trouble with guiminer. I am mining in the eclipseus pool and i use an opencl miner. Whenever i get the long poll: new block message in the console window my hash rate goes from 500 m/hash to xxx k/hash and stays down in the k/hash range till i stop and start it again. I have searched everywhere for an answer to this but can't find one. I am running 1 AMD 7950 and i have the computer plugged into my tv for a display at the moment. Any help would be great thank.

also i see that my gpu usage goes to 0 after long poll:new block

I'm not sure what your issue is, but never really liked GUIminer. You should get much better performance with diablo or cgminer. You can find startup strings for various miners on many support websites (e.g. mtred help page), or you can try a few pages back where I posted an entire cgminer.conf file that should work great on a 7950.

 

[Zargon]

Because it seems to be $10-$20 overpriced when I look at the ladder of gaming cards. The 7770 is about $100 on sale, and the 7850 is about $150 on sale. The 7790 seems like a $130 card, not $150.

What's the power usage on the 6850 and what's it hash?


edit, its about 110w vs about 50w


as a gaming card the 7850 wins for sure, but mining is different

 

[philipma1957]

how many 7970's could I fit into a mobo and use for bitcoin? I havent read about this stuff since bitcoin was at like 10 bucks or so. Am I right in thinking 4 is the max?

you can do 4 but 3 run better then 4. I gave up trying to run 4 on a mobo.

 

[Zargon]

I wonder what the cheapest Mobo that can do 3 is...all it needs is 3xpci express at atleast x4 right?

 

[x3sphere]

Looks like I'm getting back into the game. Litecoin profitability is 3x that of BTC mining for me :O Doubt it'll last long but eh...

 

[snowboarder33]

Debating whether I should start mining.

Would it be worth it to start now? About how much could I net a month with one 7950?
Should I go with Bitcoins or Litecoins?

 

[Accord99]

Debating whether I should start mining.

Would it be worth it to start now? About how much could I net a month with one 7950?
Should I go with Bitcoins or Litecoins?

http://dustcoin.com/mining

Plug in your numbers. A 7950 at around 1GHz gets close to 600 Mhash/s on Bitcoin and 600 Khash/s on Litecoin. Litecoin will usually have several tens of watts of higher power consumption.

 

[Accord99]

I wonder what the cheapest Mobo that can do 3 is...all it needs is 3xpci express at atleast x4 right?

Hard core miners use these PCI-e risers to plug in video cards into PCI-e x1 slots.

http://www.ebay.co.uk/itm/PCI-Expre...uting_CablesConnectors_RL&hash=item2a2b1ca32d

Both Bitcoin and Litecoin aren't sensitive to the PCI-e speeds of the video card.

 

[Chiropteran]

Wasn't watching the bitcoin markets for a bit, so I was kinds surprised...

$125

25% gain in one day, maybe $200 isn't so far away?

 

[Minjin]

BTC is moving up but not on large volume. Which tells me that there isn't much support at these price levels. I think we'll see a large correction in the next week or so.

 

[Mir96TA]

Wasn't watching the bitcoin markets for a bit, so I was kinds surprised...

$125

25% gain in one day, maybe $200 isn't so far away?

I sold off at $122

 

[WhoBeDaPlaya]

Makes me sad I dumped all my coins in early Jan

 

[Mir96TA]

I have sold some at $4.75 when I use to have Nvidia 800GTS (Yes my First 5 Bit coins from that poor fellow)
I use to do at night only
Then I bought 5850 card it below the door off the 8800 GTS.
Then I got 5870 after selling 880GTS and Rebate + some bit coins offset the cost of 5870.
Today I sold one at $122

 

[wbynum]

Litecoin mining is annoying me. I've got two setups going. One 7970x2 setup and one 7950x2 setup. The only way I can make either actually work with cgminer is to set intensity at 13. If I set it any higher my hash rate reported by cgminer goes up but the actual pools I am connecting to show around 15kh/s. I believe I got the same with reaper but it showed every share throwing an error (probably what cgminer is doing behind the scenes).

With intensity 13 I get the following hash rates:

Each 7950 = ~300KH/s
Each 7970 = ~530KH/s

The 7970's are slow but the 7950's are plain abysmal. I've been messing with this all evening and am about burnt out. Anyone in this thread encountered the same thing and figured out a fix?

 

[travanx]

Just setup litecoin on my 7950 with cgminer and reaper. Not sure which is better to use. Looking at getting another card. Is it better to get another 7950 or can I run a 7970 with the 7950?

wbynum with the 7950 at I=13 I am getting the same rate in cgminer. But using reaper at 20 I am getting 520KH/s.

 

[dajeepster]

i can't seem to get cgminer to work with ltc, but reaper seams to work fine with my 79xx

 

[wbynum]

wbynum with the 7950 at I=13 I am getting the same rate in cgminer. But using reaper at 20 I am getting 520KH/s.

Problem with my setup is when I do agression 20 in reaper all the shares are stale. I have to bump it down to 13 to not throw a bunch of stales. Same for cgminer I think. The 7950 box is old with I believe 12.8 drivers from last fall. Tomorrow night I will wipe it and put the latest AMD drivers on it.

On a brighter note, I was able to get my two 7970 preforming better. The one connected to the display still is sucking (~530kh/s) but the second one is up to ~660kh/s. All had to do with setting 2 gpu threads in cgminer and adjusting the core clock to memory clock ratio in afterburner.

Here are my cgminer settings for the 7970's:

C:\lc_mining\cgminer-2.11.2-win32\cgminer --scrypt -o http://newlc.ozco.in:9332 -u XXXXX -p YYYYY --shaders 2048,2048 --thread-concurrency 8192,8192 -I 13,13 -g 2 -w 64,64

My GPU core clock in Afterburner is 945mhz and the memory clock is 1575mhz. Note that raising the core clock actually decreased the hash rate. The ratio of 945/1575 seemed to be the sweet spot.

 

[pm]

Setting up litecoin mining for me has been a lot more experimentation than BTC mining. I spent the evening messing with cgminer vs. reaper with my 7850 and finally, settled on reaper where it's getting 360kh/s and my two 7950's I'm using reaper and they are getting 560kh/s each. It was pretty finicky to set up and my concurrency settings are nowhere near what the documentation recommended. But it's pulling shares from the server and I don't have a lot of stales and the throughput looks good. So I think that's it for tonight.

 

[hyrule4927]

Almost at $150 now. This is getting insane. Feel like another crash is on the horizon, but I think I am going to hold on. Only sitting on a few bitcoins and I'd rather see just how high it goes. Worst case scenario, I don't make a few hundred dollars. Best case scenario . . . the sky is the limit.

 

[Chiropteran]

Crazy, $139 now, peaked at $147 last night.

I bought some LTC to get onto that train while they were raising, but decided to take my profit and get back into bitcoin. At least bitcoins has a real developing market with major companies accepting them, I felt like the litecoins I bought were worthless except as a speculative toy. Bought 550 LTC for 15 BTC yesterday, sold 500 for 21 BTC today. Not bad, $834 net profit if I sold the 6 net bitcoins and another $200 for the 50 LTC I am holding on to.

I left one PC mining bytecoins overnight. Mined 22 blocks, 2 rejected, and sent 25 bytecoins to a friend, 975 left in my wallet. I think these are even more of a speculative waste of time than anything else, but I am learning a bit about how the early days of bitcoin must have been.

edit:

Does anyone else feel like BTC-E is the shadiest website ever? I hate dealing with it, and refuse to leave money in my account.

 

[Mixolydian]

Wow I'm getting so confused by all of this: Bitcoins, Litecoins, Namecoins. My head is spinning!

I bought a Radeon 7870 for bitcoin use, seems to be OK I guess. Steady 369mhps. Earning bitcoins is pretty slow though!

I am using BitMinter for mining and BTC-e for "banking"

 

[HydroSqueegee]

Setting up litecoin mining for me has been a lot more experimentation than BTC mining. I spent the evening messing with cgminer vs. reaper with my 7850 and finally, settled on reaper where it's getting 360kh/s and my two 7950's I'm using reaper and they are getting 560kh/s each. It was pretty finicky to set up and my concurrency settings are nowhere near what the documentation recommended. But it's pulling shares from the server and I don't have a lot of stales and the throughput looks good. So I think that's it for tonight.

mind posting you config for both the 7850 and 7950? when i do get reaper going, my 7870 is only pulling 260kh/s

 

[HydroSqueegee]

Crazy, $139 now, peaked at $147 last night.

I bought some LTC to get onto that train while they were raising, but decided to take my profit and get back into bitcoin. At least bitcoins has a real developing market with major companies accepting them, I felt like the litecoins I bought were worthless except as a speculative toy. Bought 550 LTC for 15 BTC yesterday, sold 500 for 21 BTC today. Not bad, $834 net profit if I sold the 6 net bitcoins and another $200 for the 50 LTC I am holding on to.

I left one PC mining bytecoins overnight. Mined 22 blocks, 2 rejected, and sent 25 bytecoins to a friend, 975 left in my wallet. I think these are even more of a speculative waste of time than anything else, but I am learning a bit about how the early days of bitcoin must have been.

edit:

Does anyone else feel like BTC-E is the shadiest website ever? I hate dealing with it, and refuse to leave money in my account.

I bought 2 BC yesterday at $108 as pure speculation. Seems it was a good move.

as for BTC-E... Russian sites always make me raise an eyebrow, but until Mt.Gox starts trading LC, its not bad.