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Signature changed, please send 0.06 BTC to 1BP6LfEmMcXPT88GwUnMa8Gtp2EpKetYJ9
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That's what happens when you outsource your customer service/support to the wrong company.
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You don't need them on older driver versions too (win7 64) but I am not sure about the 7xxx series. 5xxx and 6xxx worked without dummy plugs for me with drivers ver between 11.6 and 12-something (but I did need them before 11.6) of course it was never a problem on linux  |
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Let's see 'em block this. There's now a random number of invisible "posts" before and after the ad, and they're all (I think) indistinguishable from real posts if you're limited to just CSS selectors. Hopefully the filter maintainers aren't careless or they'll end up blocking random posts.
why are you so dedicated to preserving ads? ..because people are paying for them?  |
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Thanks for the reply and info. Ive decided to ditch the board and get one with 2xpcie slots of fleabay. One i'm looking at uses a sempron processor and a meaty heatsink and no fan!
What is your budget? Most miners throw in 4-6 cards 1-2 GPU each (but no more than 8 GPUs in total (more than that is possible but very difficult and not worth spending time on with current mining profitabilities). P.S. Just a reminder - it might not be the best moment to invest in GPU farms now as the difficulty is increasing very quickly and the price stays more or less at the same level; unless you have free or very cheap electricity or only doing it for fun (or for mining other SHA or scrypt based altcoins). |
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Taking off the plastic increased my temperatures, they are there for a reason and influence the airflow.
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There are exchanges that are actively operating but most of them are not based in US. http://bitcoincharts.com/markets/You would have to operate it in a more business friendly country and at the worst accept currencies other than USD. |
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I wonder how low can industrial customers get their power. As far as i read they can get direct contracts with the electricity power exchange. Then i see the prices there: http://www.eex.com/de/ Its 32€/MWh. That should be around $3.5 Cent... I wonder how low this could get. In germany the power costs at the exchanges are dropping everytime too because of the huge amount of solarpower coming in... only the big suppliers of power raise the price and claim the reason is the costly solarpower. Clear lie to keep their atomic mills. But when one would have access to the power exchange you wouldnt need to buy from them. But its only a thought... its probably too hard to achieve. Sometimes individual non-industrial customers may get direct contracts with the power companies but it will cost extra if it requires investments in the infrastructure and only for high usage. As for Germany, it doesn't lie in the middle of the Sahara desert, using solarpower is (especially in that part of the world) more expensive unless one relies on government subsidies. Of course the solar power costs are getting lower over time, as the technology is becoming more common, manufacturers are finding ways of making it cheaper and more efficient. As for that graph above, price electricity in Poland is of course dependent on the place but it is generally more expensive, and definitely more expensive than France (I have lived in both countries, most of the electricity (~90%) is derived from nuclear power stations, in Poland there are none). |
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Jusat one 5830 card at the moment. Will add new cards each month. It only has 1xpcie anyway.
I have BAMT installed now.
Just a question. Riser cables. I know they allow you to have the cards outside the system but would they convert normal pci connectors for use with more graphics cards?
Yes, there are PCI to PCI-E risers but I wouldn't risk it. PCI can provide 25W max. while PCI-E can provide up to 75W (this only according to specifications, exceptions occur). If you use your GPU for SHA hashing it doesn't really use memory much and you can underclock it so it takes less power. You can also mitigate the risk of overstraining your motherboard by using powered risers but I don't recommend doing so. Also last time I checked PCI to PCI-E risers where at least $40-50 each. It would be better to buy a new motherboard. Of course you are aware that you can connect your GPUs to PCI-E slots of any size? (with risers ofc; x1, x4, x8 and x16) |
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Maybe having a 0.00015249 BTC output contributes to this.
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Teamviewer or logmein from anywhere in the world into a Windows (which also acts as a server and a few other things from time to time) rig and from there SSH into headless BAMT rigs.
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- The Bitcoin daemon is stable but a bit CPU and memory intensive compared to other daemons on the system.
Can you make it work on only 1 cpu core? Cons- Confirmations can literally take hours. Doing a transaction often takes minutes or even hours to get confirmed. We currently wait a few seconds before accepting a payment but cannot afford to wait for confirmations. (and thus have a less secure payment system than we'd like).
- Transaction fees are relatively high for micro transactions. For example, when people sell their art pictures for 20 eurocents/2 mbtc each, the transaction fees increase the price by roughly 25%. This is hurting the really small transactions, we hope the network will reduce transaction fees to 0.1 mBTC or even less in the future.
Other considerations- Recurring payments are not possible, might be a problem depending on your niche.
- We have a few thousand accounts and a few thousand addresses. Bitcoind queries are still very fast but we couldn't find any reliable metrics on queries against super large wallets with millions of addresses.
0-conf tx can be quite safe (for low-valued transactions of course, I wouldn't risk with cars or real estate) if you follow a few measures e.g. connect to a select number of whitelisted and trusted nodes and disable incoming connections. Also read up how the tx fees are calculated and how you can reduce their sizes to pay lower fees and adjust them depending on the tx so that it goes in quicker. Recurring payments? https://walletbit.com/docs/subscriptionsAs for the part about micro transactions until more effective measures of storing the transactions that will take up less space are developed it will become more difficult. Have you considered maybe using some alt-coins for the low-valued transactions and exchanging them automatically to BTC via some exchange's API? From what I've read up from some users here (ie. those operating exchanges etc.) a 'heavy' (as in size) wallet.dat will slow down the client.[/list] |
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One thing people may not be aware of if gAuth doesn't require an active internet connection. I use an old junked smartphone which I removed all apps, disabled all wireless & cellular that sits on my desks as a 2FA "device" for about 20 or so websites. When I am not home it goes in the office safe. Granted that may be a little extreme but eventually everyone is going to have an old smartphone so using a "semi-dedicated" device which is permanently air gapped provides enhanced security on the cheap. I did the same (without keeping it in the safe part), there are even unnofficial gauths for symbian-based phones (written in java & open sourced ofc) alternatively one could run it on an old PC/laptop that is never connected to the Internet Lastly MITM attacks can defeat 2FA pretty easily. The most likely attack scenario is using "public wifi". As an example an attack can create a hotspot "starbucks wifi" and using a higher output amp "block" the real starbucks wifi. You connect and now the attacker can MITM any internet browsing. If the website uses SSL the attacker can't easily impersonate that however the attacker could provide a unencrypted (http vs https) version of the site to trick the user. There are no real good solutions. The real solution is that public wifi really needs a CA type solution and a SSL type keysharing scheme. OS/devices would warn when connecting to an unknown wifi source. Baring the development of a standard I would highly recommend NOT using public wifi (or route all communication via VPN when on public wifi) and double check that the website is operating over https and the url is correct (not https://bl0ckchain.info). With DNS spoofing attacks and SSL hijacking I wouldn't recommend anyone to connect through an untrusted wifi without a trusted VPN (best to set it up yourself) for anything remotely connected with any money. P.S. you have misquoted in the post I am now replying to |
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Yes, but the limits are like the one you posted few posts above and exceeding them would render a transaction non-standard. And also: One argument against using OP_CHECKMULTISIG is that old clients and miners count it as "20 sigops" for purposes of computing how many signature operations are in a block, and there is a hard limit of 20,000 sigops per block-- meaning a maximum of 1,000 multisig transactions per block. Creating multisig transactions using multiple OP_CHECKSIG operations allows more of them per block. |
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I think currently the limits are the relay nodes which might not relay non-standard transactions and miners which might not include them in blocks.
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What's the GPU you are using? And only one?
1 GB of RAM is enough for BAMT it spares you the need to use a HDD as you can boot it from a cheap memory stick, run headless (without a monitor) and control through SSH.
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Honestly I hear about people getting robbed from Blockchain all the time - Two-factor auth when using google is not real two-factor, it's an illusion because if one password is compromised by an infected computer so is the other. Huh? Password is on entered on computer. google auth code is obtained from smartphone. 2FA - as in two factors. How exactly does attacker knowing your password, compromise the independent google auth code? (Hint: it doesn't) If the security of the PC was compromised before he added the google authenticator, the hacker could copy the key OP generated to set up google authenticator himself that would generate codes that would be the same as OP's. Another possibilty is the device used for generating the codes could have been compromised as it was mentioned above. 1. Most 2FA codes (GAuth and such) are good for a short window after generation. A keylogger which transmits to the attacker in real time would be adequate to allow an attacker to log in with a 2FA code I entered on my PC - this was actually a common method of circumventing 2FA to steal WoW gold back in the day. Anyway, since the passwords I need to send coins are the same as the passwords needed to change settings, view private keys etc the attacker could have compromised my account and exported my private keys without my knowledge, then waited until I had a worthwhile amount in the account before acting.
It shouldn't let you reuse a code more than once. In Mt.Gox if I want to quickly withdraw some BTC to two addresses I have to wait a few seconds to send to the 2nd address until a new code is generated because it won't accept the previous one that I have already used (even if it is still valid for a few seconds). |
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I have sent an email about 1.5 hours ago, I would be glad if you could respond.
Thanks
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