As far as I understand it, all 3 major vendors first batch pre-order lists are full. Always room on the 2nd wave lists though (think they said that's scheduled for Jan '13)
http://store.avalon-asic.com/Avalon project has 9 left over from the first batch. |
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можно по подробнее о настройках?
I changed the settings on the bios via the switch. You can run these stable at 850-880 at 150mem at 1.05v  I only mine on Linux. Move the switch back to the default bios in order to use the card in windows. Here is a guide that you can get further details with updating your bios. https://bitcointalk.org/index.php?topic=77086.0 |
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not sure why people are concerned over the estimated ~120w.
assuming it's 10c/kwh, it's ~$9/mo.
that's lunch money.
considering the cost of the bASIC $1069.99 usd vs BFL/Avalon $1,299.00 usd. The power cost for bASIC at $9 month would take 25 months before it could be a concern. Or at the cost of bASIC at 1069.99 USD vs BFL/Avalon $1,299.00 USD. the savings of $229 when going with the bASIC option would get you one of these units    with 6 USB ports WIFI Ethernet at less then 35w consumption. http://www.memoryexpress.com/Products/MX40952 at 129.99 you have a good power solution to boot. |
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I live in a rental, so I'm afraid Geothermal is just not practical for me.  I should be able to post pictures and explain how my ventilation works in a week or so! I think it will be pretty unique, I haven't seen anything like it on here. You may have one of the more difficult environments to do cost effective environmental conditioning. Looking forward to it  |
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You want to know the most efficient way to cool a system? Use mother earth energy, .... thermal energy ( Use geothermal heat dump)
Geothermal has been around for many years and is efficient however expensive solution. I like this little youtube video. Geothermal solutionsLOL good job on searching. Now start digging more. Its not that expensive if you're looking to cool thousands of watts for free. I have already lead project installations using this method in the recent past. At that time they were for normal residential use and it was not cheep. What I hope to see is what others bring to this show and tell... Ghetto style Most American home has a nice backyard right? I'm not from America but dont see digging your own yard can be costly. Rent a tool and take a day to dig? If space is not available you can use water-water exchangers and heat a pond, a pool or household hot water. Bitcoin project is global, and its mining participants are part of this global network. So it goes with out saying that not all seasons and environments are equal on a global scale. With that said why not show an example of your setup? I am sure people that frequent the forum would like to see it. |
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In recent history 6.4 was the norm then quickly shot up to 9.2. From their it went all the way up to 15. But the motivation for that may have been solely on market speculation and other factors I will not bring up.
The motivation now may be speculation related to the upcoming reward reduction by 50% has not been priced in at $11 for every BTC.
Another factor to consider is people buying up BTC instead of investing in hardware that never came before the reward halving.
This is all speculation as to the recent rise in BTC value.
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You want to know the most efficient way to cool a system? Use mother earth energy, .... thermal energy ( Use geothermal heat dump)
Geothermal has been around for many years and is efficient however expensive solution. I like this little youtube video. Geothermal solutionsLOL good job on searching. Now start digging more. Its not that expensive if you're looking to cool thousands of watts for free. I have already lead project installations using this method in the recent past. At that time they were for normal residential use and it was not cheep. What I hope to see is what others bring to this show and tell... Ghetto style |
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You want to know the most efficient way to cool a system? Use mother earth energy, .... thermal energy ( Use geothermal heat dump)
Geothermal has been around for many years and is efficient however expensive solution. I like this little youtube video. Geothermal solutions |
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For one of my sites, (4400 watts GPU power = 13Gh/s) I use this barn fan.  (source link)It is effective even in summer at maintaining the indoor ambient temperature range between 20-22 degrees Celsius. This is true if ambient temps outside don't go over 30 Celsius. Cooling cost usage is at 160-180 watts. Moving / purging the heated air 3200 CFM alone is rather effective. |
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...humans breathe out CO2, and Plants metabolize it...
I love this discussion process. I just went to do a little research to get my facts straight before criticising those who were saying plants metabolise CO 2 only to find my idea of metabolism was erroneous  I had been assuming the releasing of energy through the breakdown of sugars with Oxygen was metabolism whereas photosynthesis, being the creation of sugars from energy and CO 2 was not metabloism. I discover instead both are metabolic processes, the former being catabolic (desctructive) metabolism and the latter anabolic (creative) metabolism. Awesome Many people assume plants only use CO 2 and through photosynthesis turn it into Oxygen whilst we animals respire turning Oxygen back into CO 2. The point I wanted to make is that plants also respire, that they use the energy of the sun to provide them with the sugars and oxygen they need to respire. The Oxygen released is that which is surplus to the plant's own requirements. But reading the comments I'd intended to correct I find there was no such misconception evident there. That 'plants metabolize CO 2' is, I now understand, correct Thank you! +1 |
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No problem.. I can be mr grumpy pants sometimes.  I will show you guys after I get it set up. I will certainly have a cooling system like no one on here has probably used before, so I understand you guys doubting its capabilities. I'll be cooling about 15000 watts by the time the project is completed, using water cooled air intakes and a couple exhaust fans to cool everything (hopefully less than 750 watts of ventilation/cooling if things go as planned.) I'm still working out the specifics and don't even have all the necessary hardware, I'm probably about a month out from finishing the project. Hoping to reach about 25 Gh for all the hardware, which will be mining alt coins (LTC, etc). This + my day job = busy month! If your plan is to follow the idea of the OP, then you already fail. But i will let you learn the hard way. Some of you guys must have failed physic terribly in grade school. Wow harsh.... That type of attitude erodes any attempt to maintain the community spirit of sharing... However with that said. The intent of the topic is to open up discussions on examples of what people are doing to deal with their environmental issues. Since you are so outspoken about efficiency, why not share your setup with the community here? Pictures _ Diagrams |
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 Works once you run the client. But if you close down the client it stops working.  |
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Would that not pose a greater risk if you were to put the equipment directly below the unit? (Gravity)  Well, I already built a sound proof box that is 62" by 32" by 48". I was thinking of throwing one or two of those on the side as a water cooled intake, so the ice box would probably be about a foot to a foot and a half away from any equipment. Are you capable of controlling the air moving into and out of the room? Maybe with one of these?  Power usage at about 160-200 watt's at full power 3300-4000 CFM |
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Would that not pose a greater risk if you were to put the equipment directly below the unit? (Gravity) |
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That's not what I wanted to hear! I live in Texas about 2 1/2 hours from the gulf of mexico. It can get pretty humid here... it usually stay between 42 and 94 percent relative humidity.   EDIT: Edit: I would try to use this setup to control the air entering the room. However take into consideration the distance you place the unit from your equipment. For added cooling you could double up the cooling pipes as well.
Edit: Remember that ventilation exiting the room is important factor to consider as well.
Good idea, there might be some way I can make it work. I need to cool about 5500 watts. I was already planning a 4" exhaust fan, add this into the mix and I think that would keep things pretty cool allowing me to over clock a little bit. Edit: At 5500 Watts I assume you are running that all GPU? So your at about 12GH/s to 14GH/s Best thing is to try in a test environment first. The airflow over the coils plays a critical role in controlling the Dew Point vs Relative Humidity. In your environment Relative Humidity is indeed a greater influence on condensation. Relative Humidity Calculation FormulaLayman's Explanation for Relative Humidity vs Dewpoint Youtube Link |
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Wouldn't the copper tubing sweat? I'd be scared to get that too close to my rigs. The chance of the tubing sweating and the fan blowing water and shorting something seems likely. Or am I wrong? I ask because this setup would be really perfect for me if it wouldn't sweat. I have a 1/2 HP water chiller sitting around not being used, so I could set up maybe 3 or 4 of these and use the chiller to cool the water.  I suppose it would depend on the humidity in the air and the amount of air flow passing over the pipes.  (source)Edit: I would try to use this setup to control the air entering the room. However take into consideration the distance you place the unit from your equipment. For added cooling you could double up the cooling pipes as well. Edit: Remember that ventilation exiting the room is important factor to consider as well. |
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