Cryptocoin Mining?

[Dum3]

What are you using for 2.6 ghz and 850 watts only?Gpu or ASIC?

 

[Mir96TA]

I did not have to do that with CGMINER

Are you having a prob ?
Is he using CGMiner ?
I know for sure GUIminer cannot talk to card properly if they are in CROSS Fire specially 5850 or, and5870

 

[RussianSensation]

Even at ~500 7970-equivalent units like you are estimating, that's still 0.33TH/s or a little under 3% of the entire mining system a few months ago, not too shabby for a little forum on the interwebz.

Btw, I find it hilarious that sometimes when I am Googling for info, one of the top results is a thread in this forum I remembering reading earlier.

I am saying overall the inevitable demise of GPU mining will come not from 500 new HD7970's joining but from the fact that bitcoin mining on current GPUs was always going to fail in due time. You even agreed yourself that the price of bitcoins is largely decoupled from mining difficulty, driven by demand. The only unknown for current cards becoming unprofitable is timing. Mining on slower GPUs such as HD4870/4890 became unprofitable a long-time ago before HD7970 series even launched. You are missing the big picture and that is mining in general has grown worldwide. Obviously as hundreds of forums of the internet discuss this thread and more people learn about bitcoin mining, more and more users join the network. At the same time that increases the # of transactions where bitcoins are exchanged/sold. You can't just argue one side that new users only hurt the network. The same people are the ones spending bitcoins later and actually keeping bitcoins alive as a viable virtual currency.

I remember seeing mining rigs with 10-20 GPUs 1-2 years ago already. HD5830/5850 cards were a big hit way back then. You are trying to pin some of this difficulty increase on HD7900 cards, but really it's not the complete picture. While 7900 series cards are used for mining, a lot of people bought them from $ they earned in the 5800/6900 days. You don't seem to be putting any weight on all those thousands of users who kept rolling over their old HD4800/5800/6900 series cards into 7800/7900 series. The people who have been mining have been upgrading their systems. So what used to be a 350 mhash 6950 now became a 600 mhash 7950, etc. The entire community of existing long-term miners have been upgrading over time and the difficulty is increasing with them gaining more hashing power, as well as with bitcoin mining opening up to Middle East, Asia and North Africa. The new users from this thread are a drop in the bucket vs. the entire network that keeps getting more and more GPUs and even using older Butterfly labs products.

 

[Zargon]

Are you having a prob ?
Is he using CGMiner ?
I know for sure GUIminer cannot talk to card properly if they are in CROSS Fire specially 5850 or, and5870

nope, it was fine, and defaulted to mining on both cards

 

[VulgarDisplay]

Next question. Could I put a 5870 in the same PC as my 7970 and get it mining also? Would it be worth it if it's possible?

 

[Zargon]

yeah 5870s mine really well

 

[Mir96TA]

Next question. Could I put a 5870 in the same PC as my 7970 and get it mining also? Would it be worth it if it's possible?

Yea......
Make sure your P/S is upto and cooling is upto par.
Both cards get HOT as Hell :twisted:

 

[VulgarDisplay]

How does this work from a driver standpoint? Do I need to install a seperate set of drivers for the 5870 or will it run based on my catalyst installation for my 7970?

 

[Mir96TA]

Remove all the drivers.
Install the card(s)
Install the latest drivers

 

[VulgarDisplay]

This is really making me wonder about the negative effects on my GPU's life. Fan going about like 50% constantly, and all the heat it's creating. I'm just hoping to build up some funds to have this GPU pay for something like a gtx7xx or hd8xxx in the future.

 

[blastingcap]

I bought two different ASUS DirectCU II 5850s some time ago, and both had issues so I had to send them back. One couldn't overclock at all and the other had glitchiness even in 2D mode. I'm guessing they were probably driven hard by mining, but they might also have suffered in the hands of inexperienced over-volters, so who knows.

 

[Mir96TA]

This is really making me wonder about the negative effects on my GPU's life. Fan going about like 50% constantly, and all the heat it's creating. I'm just hoping to build up some funds to have this GPU pay for something like a gtx7xx or hd8xxx in the future.

Definatly FAN life would decrease.
However if you can keep the cooling 70c or below it won't be bad at all.
Rapid heat and cooling and Over heating the card kills the card

 

[Lonbjerg]

http://www.dailytech.com/Pirateat40...BitCoins+From+Pyramid+Scheme/article25538.htm

Just...LOL

 

[Binky]

http://www.dailytech.com/Pirateat40...BitCoins+From+Pyramid+Scheme/article25538.htm

Just...LOL

Financial darwinism! A fool and his money are soon separated.

Who knows if its true. Lol, how could it NOT be true.

 

[RussianSensation]

I bought two different ASUS DirectCU II 5850s some time ago, and both had issues so I had to send them back. One couldn't overclock at all and the other had glitchiness even in 2D mode. I'm guessing they were probably driven hard by mining, but they might also have suffered in the hands of inexperienced over-volters, so who knows.

Before bitcoin came on the scene, I ran my NV/AMD GPUs at 99% load between games and distributed computing projects, all overclocked too. None of the cards has failed me or had a fan failure. I think sometimes it's just luck of the draw or poor batch, or if you buy used cards, well then that's entirely different. A lot of the manufacturers such as HIS guaranteed 24/7 full load 365 days a year throughout the entire warranty period. Most people never use their cards like that. GPUs are made to take a beating and a half. As long as it's a high quality card, by the time it fails, it'll probably be slower than a $100 GPU.

 

[VulgarDisplay]

So after about 48 hours I'm up to .48 Bitcoins. This is not something for impatient people. Seriously considering breaking out my 5870 and getting a couple hundred more m/hash going. 750 watt corsair should be up to the task of a 5870 and 7970.

I figure with two cards I can lower my overclocks a little and go easier on the equipment.

Also, does using a specific pool offer any benefits? I've been using deepbit, but if there's something better that would be nice to know.

 

[Binky]

So after about 48 hours I'm up to .48 Bitcoins. This is not something for impatient people. Seriously considering breaking out my 5870 and getting a couple hundred more m/hash going. 750 watt corsair should be up to the task of a 5870 and 7970.

I figure with two cards I can lower my overclocks a little and go easier on the equipment.

Also, does using a specific pool offer any benefits? I've been using deepbit, but if there's something better that would be nice to know.

Deepbit payout appears to be based on a 10% fee. That's pretty steep. Mtred has zero fee, bitparking has 2.5% (and merged mining of 5 coins at the same time, most are worthless), and abcpool has 2.8% (plus "withdrawal" fee).

0.0000204864079068 Mtred PPS rate
0.00001997 bitparking PPS rate
0.00001843776711612 deepbit PPS rate

I would STRONGLY suggest using backup/failover pools. Cgminer is very good for this, but all miner programs give some way to assign failover priority. Guiminer is the weakest.

 

[RussianSensation]

I find I make the most with BTCGuild overall compared to Deepbit, MtRed (frequent server issues), Slush's. Haven't tried other ones. When MtRed is working 100%, it earns me the most out of those 3 but it's never on for 100% consistently enough. BTCGuild has consistently earned me more $ than Deepbit as a PPS pool.

 

[Binky]

I never run with less than 3 pools. Downtime is zero. Cgminer automatically grabs work from all three servers if needed. For slow servers like bitparking, it pretty consistently does work from 2-3 servers simultaneously. For fail-prone servers like mtred, it just switches entirely until mtred returns.

I highly recommend cgminer. Its just better than the others, especially if you're a tweaking and information junkie. I run the 7950 with the diablo or diakgn (sp?) kernel, and the 6950 with the poclbm kernel. Pair it with akbash and you have a serious anti-downtime mining machine.

 

[VulgarDisplay]

Perhaps my earnings could be used to fund a new GPU cooler because this blower is freaking loud, and my card is running around 77C while mining.

 

[Binky]

Sounds like you bought the wrong card. Just turn the clocks down until you get the temps and noise you want. You can also try the -f flag in guiminer but I never found it to be terribly useful. I try to keep mine in the high 60s to low 70s.

 

[VulgarDisplay]

I bought a stock blower on release. I don't think 77C is dangerous for the card.

 

[Binky]

True, but the noise can be dangerous for your sanity, and your relationship with your wife/gf/mother/father/roommate, etc. I achieved a better noise/mhash result with cgminer than I did with guiminer. Cgminer also reports the number of work units per minute, which can be more useful information than mhash rate.

 

[RussianSensation]

CGminer sounds like a cool app. Is it a flash program or an application similar to GUIMiner? Is it easy to set up Binky?

 

[Binky]

Cgminer runs in a dos box. It isn't easy to setup the first time but I think it's worth it. The configuration can be loaded from a command line or from a conf file - I prefer the conf file since its easy to edit. It's really just a hugely configurable front end for whatever miner kernel you want to use. It has auto fan and auto gpu (speed) options, but I personally don't use those. I use the akbash "watchdog" to monitor cgminer. It restarts the miner if needed, and it can even force a reboot if the miner fails repeatedly.

Send a PM if you want more info like what I put in config files and batch files. You just have to send me your tweaks if you find better results with other settings.