Nefario, I trust you to manage the project on your end, so give me an address and I will send the 50 BTC to you now, and you can in turn pay out as you see fit. Hopefully it will be you and not your student giving me an address.  By the way, how much are my 75 yuan worth in BTC these days?  |
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Do you have other cards of the same model? Some BIOSes are pretty stingy with the fan until it starts heating up. You could always take the shroud off and point a case fan directly at the heat sink. Did you buy the card used? It's possible the bearings are starting to seize.
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What pages are needed to meet the bounty requirements?
I'll let jgarzik decide since he has more pledged, but I think certainly we should freeze the requirements based on what is currently implemented in the English wiki and not turn it into a moving target as people keep adding more. What do you think is reasonable, given the current value of bitcoins? |
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Like Raulo, I question your first assumption: Value of a BTC will always be related to the cost of power to produce it, since that's directly related to difficulty, which in turn is related to Bitcoin's popularity If someone decides to mine because it is profitable, then at some point they will want to collect their profit by closing their position. Therefore, if they invested in mining equipment using USD or other traditional currency, then they will want to exchange BTC for USD or EUR or whatever once they generate. This will create selling pressure and drive the value of bitcoin down. Difficulty is closely related to mining popularity, but value is more closely related to investment and trading popularity. |
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I run this bash script ("status.sh") every 15 minutes via cron to obtain and forward the status of my miners: date > status.out
cat /home/user/temps.out >> status.out
ps -e | grep bitc >> status.out
ps -e | grep pocl >> status.out
ps -e | grep minerd >> status.out
cat /home/user/.bitcoin/debug.log | grep generated >> status.out
/home/user/bitcoind getinfo | grep -iE "(balance|connections)" | sed 's/[",]//g' >> status.out
scp status.out user@wwwhost.com:/home/user/status101.out
This provides a date stamp, shows me that all of the relevant processes are running, whether or not I have generated a block, if I have received payment for confirmed blocks and how many connections I have. Since you cannot obtain the GPU temperatures using aticonfig unless you are executing from an X11 session, I use the following bash script ("temps.sh") which I start in an X11 terminal window: while true
do
/usr/bin/aticonfig --odgt --adapter=all | grep Temp > temps.out
sleep 900
done
This link has instructions on how to set up ssh (scp) using shared keys: http://hocuspokus.net/2008/01/ssh-shared-key-setup-ssh-logins-without-passwords/Each miner copies its status.out file to a separate status file on the "wwwhost.com" machine (see scp command above). Then the wwwhost.com machine has a cron job which runs five minutes later and parses all the statusXXX.out files into a web page. There are probably more elegant ways to accomplish this, but I have mine set up this way because the miners are behind a firewall, and I use an external machine to serve a web-accessible status page. |
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You can't put more than 2 double-slot GPUs in a box and still keep them cool without some kind of custom (expensive) cooling system. So stick with 2 5870s or 2 5970s (good luck finding a 5970). As far as motherboards, I've used the following, and they are both good:
ASUS M4A79XTD EVO
MSI 870-G45
You want a mobo that will provide one empty slot between the GPUs to allow sufficient airflow. The MSI 870-G45 has the second GPU in the last two slots, and this can restrict airflow if you are using a tower case with a top-mount PSU or a rackmount case as the GPU fan intake will be next to the case wall.
As far as cases go, I'm a big Cooler Master fan. I highly recommend a bottom-mount PSU design where the PSU can draw in cool air from underneath the case (mount the PSU fan-side down). The PSU is the most likely fail point in a mining system because the GPUs will simply throttle if they get too hot. You also want to be able to mount a high-flow fan in the front of the case blowing air directly on the GPUs. The Scythe Ultra Kaze is excellent for this purpose, but it is loud. It's also 38 mm thick and won't work with all cases. I try to avoid side-mount fans because it's an extra step to remove the cover, and you have a wire dangling which might get caught up in a fan. Make sure that the case you choose has sufficient clearance for the graphics adapter and that the drive bays do not block the airflow from the front fan. With all this in mind, the Cooler Master CM-690 II is an excellent case for a mining rig, as is the HAF series (the cheapest HAF-912 works just fine).
You should put your rig on a table or shelf to avoid sucking in the dust which invariably settles on the floor.
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I'm sorry if this has been covered before but I am interested to know if there is any good reason why there is no GPU support in the standard client.
Is it an intentional choice so that users dont have to understand how to install the latest GFX drivers ?
Even if this were the case, would it not make sense to build it in as an option.
zx
There are too many variations in GPU hardware and thus too many dependencies to deal with. |
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True, true. But how many could one process per second inclusive of checking the amount on the account?
Also, how much stress would this create on the network? Is this a viable denial of service attack? |
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You need to tailor the bitcoin pitch to the person you're talking with. There are plenty of non-tech people who would appreciate the anonymous and decentralized nature of bitcoin. Just don't start talking to them about hashes and key pairs.
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The missing 51.04 BTC mysteriously showed up just now in my MyBitcoin account, all in one transaction. This is roughly 24 hours after the individual transactions were sent. Strange.
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FBI general counsel Valerie Caproni told Congress that new ways of communicating online could cause problems for law enforcement officials, but categorically stated that the bureau is no longer pushing to force companies like RIM, which offers encrypted e-mail for business and government customers, to engineer holes in their systems so the FBI can see the plaintext of a communication upon court order. Translation: RIM is already cooperating with us. the FBI is still pushing for more online-communications companies to build real-time spying capabilities into their software Which is why each one of us should ensure the end-to-end privacy of our communications using open-source cryptography software. The FBI’s further push for expanded powers to wiretap online communications in real time comes against the backdrop of revolutions in the Middle East that relied heavily on social media communication tools and as Secretary of State Hillary Clinton called for worldwide internet freedom. Yes, give everyone in the world unfettered access to the internet so we can listen in on their communications and nip any future revolutions in the bud. “As the gap between authority and capability widens, the government is increasingly unable to collect valuable evidence in cases ranging from child exploitation and pornography to organized crime and drug trafficking to terrorism and espionage –- evidence that a court has authorized the government to collect,” Caproni said. “This gap poses a growing threat to public safety.” I am so scared.  Who is going to save the children? |
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Hey, this is excellent. Thanks! |
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SumChancer, I think that you are absolutely correct. Bitcoin or other, similar peer-to-peer cryptocurrencies will create an economic revolution. Freed from interference by governments, banks, large corporations, labor unions and other special interest groups, the market will be able to bloom like never before. I've been an entrepreneur my entire life and have had to deal with bullshit from these groups in addition to trying to keep cash flowing in and customers happy. I will never start a business the conventional way again. For any business ventures I undertake in the future, I will be a stateless actor on the global stage using anonymous reputation systems. Anyone who asks for government ID numbers before doing business with me will have to look for another patsy. The fascists have had their century. This one belongs to us.
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The difficulty factor will soon be at something like 35,000. Even with a 5870 (or half of a 5970), the average generation time will be the better part of a week.
The average generation time will certainly be less than the better part of a week. An %40ish increase in difficulty is certainly significant, but %40 is much less than %200 Go here: http://developer.wolframalpha.com/widgets/gallery/view.jsp?id=76444b3132fda0e2aca778051d776f1cIf you put in a difficulty of 35,000 and a hash rate of 320 Mhash/s (HD 5870), you get 5.437 days. 5.437 is not the better part of 7? |
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I can confirm that nmteaco is an honest merchant. I ordered some gyokuro from them, and it was delivered in a timely manner, well packaged in a sealed, opaque bag (prevents photo-oxidation).
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You're amazing, slush. I look forward to the return of real-time stats. Did you ever fix the problem of not being able to change worker passwords (memory cache)?
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This is single-threaded, and pulls a whopping 43 Khash/sec on my box.
What type of system are you running? Hamsters in a box with pencil and paper?  |
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