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Unless you can get some decent graphics cards in them, CPU mining will be a waste of money since it'll cost more electricity to run the machines than you'll get from their super low hashing power.
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"' RIGHT JOIN TABLE USERS; --
Dammit, didn't work.
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I don't know how the market is going to be in the next few days since the whole security fiasco, but lets assume the current price sticks for this post.
It usually takes a few months to fully pay off for a rig, unless you have already have the hardware (like you built a gaming rig and it happened to have a good mining card). It is true that it will get harder to generate bitcoins as time goes by, but after you pay off your rig, the only cost is electricity. When the cost of electricity is more than what you're pushing out of your rig, then mining is unprofitable.
A lot of people who are adding rigs have most likely paid off previous rigs, or who are running a larger risk than others who make a $600 rig with 5830s. I guess to a new person who has just recently came into mining it can feel like a never ending catch-up since the network has grown a lot in the last few weeks.
And your last statements about the large, single-owned datacenters, it's unlikely. At this time, you can still make profit (depending on electricity costs) from 500mh/s.
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I don't think they operate transfers on weekends since it needs to go through the banking systems.
It take a long time though. It took Dwolla 3 days after the funds cleared my checking account to show in my Dwolla account.
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Could probably take out the intake fans and put a mesh screen in place of those. What this will do is filter dust very well, since you'll be sucking all the air through the case via the rear exhaust fans. If you look at high end ATX cases, you'll notice how there's usually more overall CFM as exhaust (Rear, top, psu if on top, and somestimes side is used as exhaust), since you don't really need intake fans with proper case filtering. Usually the intake fan is there for cooling HDD's anyway.
The exhaust fans in the back will create the suction needed to pull air thorough your design regardless of intake fans. I'd suggest trying to replace the front with some type of dust filter and see what that does. I'll bet the temps will stay the same.
It's called redundancy my good friend  We can safely assume anyone who build a box like this wants to have it run 24/7 at which point we really don't want to risk having one of the fans die and thus increase our temps, this would especially be critical if the box contains 4x6990 or other dual gpu cards as they produce an enormus amout of heat... I see your point about dust though but it's not a big issue for me as my rig is placed on the roof where no one ever goes so the dust isn't really in circulation. And yes Chick, it's a bit expensive but what does 80$ worth of fans matter if you've just bought 4x5850 @ 130$ each?  I see your reasoning for redundancy, but intake fans are not redundant for exhaust fans since they are not doing the same thing. |
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I'd suggest staying with #1 and using a standard box to see how the market goes. Right now the mining base is increasing, thus difficulty is increasing. The market has been staying fairly level around the $15 +-2 range (ignore today's mishaps), and not quite following the difficulty changes yet. As difficulty goes up and price stays constant, the mining profit margin closes, so I would hold back on any big investments (don't be like that one guy who dropped $10k and bailed a week later).
That's just my opinion on investing in the mining atm. $500 to drop on a mining rig isn't much, and isn't too big of a risk. But buying a rack might be a little too far for the first few machines. Ultimately it's up to you since investing in bitcoin in most ways is a risk, and I wish you luck.
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Are you guys learning from Mtgox's mistakes/shortcomings? I foresee Tradehill increasing in traffic and volume in the next few days with what's been going on with Mtgox. This means you guys will be the new targets on the block. And be prepared for website scaling. |
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That's nothing. I saw a 3 second round on slush a few weeks back. Didn't manage to slip in a share so no reward though.
Yeah, quick rounds are a bitch for the people who does not have a tons of MH/s Even with 800Mh/s, I can get 2x-4x the reward on single digit second ones. Unless it's really fast, then I look at the share data and see which bastard made many BTC off of it and curse his hardware. |
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Either a DDoS is going on, or the giant traffic spike because of the amount of people trying to get coins for $0.01 caused the crash.
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Don't use cpu and gpu mining at the same time. Your cpu will under such a load, your graphics hashrate will drop to the single digits.
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I think someone hacked mtgox, selling all BTC from everyone's accounts
Would that account for the giant volume increase? Regardless, I've pulled my coins back into my wallet from mtgox. |
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Volume has increase about 10x from yesterday when it was at around 50k volume. I think the above is right, 261k, what about the other 200k increase? Why would that many people join the bail train with recent market trends looking like a mountain range?
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I was wondering something like this was going on. Look at the volume increase. Last night it was around 50,000. Now it's up to 550,000 |
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Volume is up from around 50,000 yesterday to 545,304 (nearly double what it was when I last checked it a few minutes ago). Low price at 0.01. Trade graph has a line straight down.
Something fishy?
Edit: Sorry, just saw the large amounts of post on the same topic.
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Their API is also not showing the same prices as the selling page. API still says last trade was around $17.
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Hello there, I'm planning on running a new setup: 2x 5850's 1x AMD Phenom II x6 1100T 850w psu Since most of the hardware is already accounted for. (Besides another 5850) The cost of this will be $150 bucks. I can have it running 24/7 and fortunately for a rig of this size i will not have any extra electricity costs. The current calculator tells me that: (Without any raises in difficulty) Coins Dollars per Day ฿0.69 $12.05
per Week ฿5.02 $87.84
per Month ฿20.91 $366.20 Now, to me as a noob it appears as i am going to make a hefty 150 dollar profit in the first month. However, this looks too easy, what am i missing? Any extra hidden costs? How long will it take me to recover my expenses? Thanks in advance! This is one of the cases when I'd say go for it. Since you have most of the hardware already, and will be investing a small amount, you don't have much to lose ($150 is chump change when you think about it). |
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CREATE TABLE IF NOT EXISTS `shares` ( `id` bigint NOT NULL AUTO_INCREMENT, `time` int, `rem_host` varchar(255), `username` varchar(120), `our_result` enum('Y','N'), `upstream_result` enum('Y','N'), `reason` varchar(50), `solution` varchar(257), PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=0 ; Try that. I saw above that you said the server.json had 6 values, and the table has 8, so I'm still thinking it's a NOT NULL issue. I changed everything to be not NOT NULL (the one time a double negative is correct! Your move grammar!). I also changed the size specifications for the integers because those just bug me  . Thanks for this insight, I was unware that int could be created with out a limit, I shall use this in the next Mining Farm update v4.0.4 You might also want to rethink your Enums. You could change them to Char(1) fields, which is 1 byte of space, and you have much more options in case you need to add more values in the future. You wont need to worry about database updates if another value is needed. Also, you could change the bigint to INT UNSIGNED to save on space. Unless you intend on values exceeding 4,294,967,295 , you will be safe using int unsigned, saving you 4 bytes of room for each record. All these changes should not cause any data loss during updates. You might need to make a conversion/update script for changing enums though. Something along the lines of a temporary table with the new structure and a SELECT....., CASE When our_result = 'Y' then 'Y' else 'N', .... FROM .......), then dropping the old table and renaming the temp one. |
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CREATE TABLE IF NOT EXISTS `shares` ( `id` bigint NOT NULL AUTO_INCREMENT, `time` int, `rem_host` varchar(255), `username` varchar(120), `our_result` enum('Y','N'), `upstream_result` enum('Y','N'), `reason` varchar(50), `solution` varchar(257), PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=0 ; Try that. I saw above that you said the server.json had 6 values, and the table has 8, so I'm still thinking it's a NOT NULL issue. I changed everything to be not NOT NULL (the one time a double negative is correct! Your move grammar!). I also changed the size specifications for the integers because those just bug me . |
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Right now my app is a .Net forum pulling stats from mtgox. I'm pull the data from their API page http://mtgox.com/code/data/ticker.php here. Not too sure about the useragent string thing. Sorry, I'm a noob at web based development  . |
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I know that MSI Afterburner, after unlocking it via cfg files, you can under/over clock to flashed settings. It also has 5 profiles you can save to. Might be an easier program to use rather than using cmd.
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