CoinHoarder
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In Cryptocoins I Trust
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April 19, 2013, 11:07:46 PM |
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What's that? A "portable" AC unit?
Yes sir. Right... hahah "portable".... It weighs almost 500 pounds, good thing it has wheels. It should spit out about 36,000 BTUs of cool air while dehumidifying at the same time.  I almost wish I would have got his bigger brother... the 60,000 BTU unit. But, it was expensive.. I suppose this'll do for now. http://www.movincool.com/portable-air-conditioner/officepro36.php |
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There are several different types of Bitcoin clients. The most secure are full nodes like Bitcoin Core, but full nodes are more resource-heavy, and they must do a lengthy initial syncing process. As a result, lightweight clients with somewhat less security are commonly used.
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Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction.
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Beaflag VonRathburg
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April 20, 2013, 03:38:36 AM |
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How many GPUs and in what conditions are you mining with that you need that kind of cooling? |
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CoinHoarder
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Activity: 1484
Merit: 1026
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April 20, 2013, 06:31:51 AM |
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How many GPUs and in what conditions are you mining with that you need that kind of cooling?
It won't be effectively cooling its maximum load for a month or so, but I expect to cool about 11,214 watts of ASICs and GPUs with this based on my research. I'm not really sure how accurate this number is because there is very little information on the subject, but I plan on adding rigs/ASICs until it can no longer deal with the heat.  |
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marcus_of_augustus
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Eadem mutata resurgo
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April 20, 2013, 10:15:50 AM |
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How many GPUs and in what conditions are you mining with that you need that kind of cooling?
It won't be effectively cooling its maximum load for a month or so, but I expect to cool about 11,214 watts of ASICs and GPUs with this based on my research. I'm not really sure how accurate this number is because there is very little information on the subject, but I plan on adding rigs/ASICs until it can no longer deal with the heat. As far as I'm aware it is very simple ... electric watts in ~= thermal watts need to be removed |
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malevolent
can into space
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April 20, 2013, 10:53:55 AM |
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As far as I'm aware it is very simple ...
electric watts in ~= thermal watts need to be removed
I think you could substract electromagnetic radiation of wavelengths other than 380-740 nm and sound as these two are also are also as heat are ways that energy is emitted in. I would be glad if someone more knowledgable confirmed whether I'm right or bullshitting, though. How many GPUs and in what conditions are you mining with that you need that kind of cooling?
It won't be effectively cooling its maximum load for a month or so, but I expect to cool about 11,214 watts of ASICs and GPUs with this based on my research. I'm not really sure how accurate this number is because there is very little information on the subject, but I plan on adding rigs/ASICs until it can no longer deal with the heat. Are you sure it is going to be worth to run mine the GPUs with the added cost of electricity for cooling them? Have you checked how much do you have to pay for the electricity (+ costs of transmission/distribution + taxes)? It might be OK for now, but expect for the difficulty to increase 5-10x in a year or so if BFL delivers and Avalon continues to deliver. |
Signature space available for rent.
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marcus_of_augustus
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Activity: 3920
Merit: 2348
Eadem mutata resurgo
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April 20, 2013, 12:39:36 PM |
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I would be glad if someone more knowledgable confirmed whether I'm right or bullshitting, though. I'm knowledgeable and you're bullshitting. EM (RF) radiation will be miniscule and probably absorbed and re-radiated as heat in the local vicinity that needs removing anyway, ditto for sound. Electric watts input will be the same as the heat that needs removing. (This excludes the electric watts to drive the chiller of course) |
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Protagonus
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April 20, 2013, 03:22:52 PM |
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I've dealt a bit with this stuff as well (cooling, electronics, TE's etc). Technically, you need MORE cooling watts than heat watts produced. As, in general, it is harder to cool than to heat. (E.G it takes to add heat energy and more to subtract heat energy) In a case with TE's a 250w heatsink was required to remove 100w of actual heat produced (Delta 10%F). Operational temp of device was 10%F I suppose also, so you wouldn't need 3-4x if a larger delta is fine.
So, to cool 11,2Kw; I would assume, you prolly need around 15Kw of cooling ~ 74F final room temp+/-
(no physics isn't being violated. You need to compare in J instead. Essentially much less "time" required to heat than cool. Also relates to lower energy of cool)
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CoinHoarder
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Activity: 1484
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In Cryptocoins I Trust
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April 20, 2013, 09:03:26 PM |
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How many GPUs and in what conditions are you mining with that you need that kind of cooling?
It won't be effectively cooling its maximum load for a month or so, but I expect to cool about 11,214 watts of ASICs and GPUs with this based on my research. I'm not really sure how accurate this number is because there is very little information on the subject, but I plan on adding rigs/ASICs until it can no longer deal with the heat. To get this number I used a very safe (IMO) formula of every watt producing 3.21 BTUs I expect to be able to cool more, especially since there's already a 5000 BTU A/C window unit there. |
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crazyearner
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Merit: 1001
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April 21, 2013, 12:36:00 AM |
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NIce to see but inefficient as hell.... If you just use the water for this; let it run through the system and right into the drain; it's just a bad example of water usage  ... Letting the neighbours pay for your mining isn't nice too :/ BTT:  Dam you I love the 5870s I have 1 and they blow all other gpus I currently have need to get more of them or I get higher ones or wait for other hardware. |
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NetcodePool
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April 21, 2013, 03:18:47 PM |
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Some nice setups in here.
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netcodepool.org
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svennand
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April 21, 2013, 06:17:24 PM |
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My hobby rig=) sodabox left: 1x7970, 3x7850 Seasonic 1250w sodabox middle: 2x6970 3x6870 Enermax MaxEvo 1500w sodabox right: 4x 5870 Corsair 800w Main computer: 2x7970 (got overheat issue with 4x7970 in same case=P) Seasonic 1250w. As of now im stopped by the fuse breaker and heat for that room. 16amp at 230v only gives me 3680w total.  |
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tosku
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April 21, 2013, 06:34:47 PM |
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What are the towels doing under the front table legs?
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Skude.se/BTC - an easier way to request your daily free coins!
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ribal
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Activity: 217
Merit: 10
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April 21, 2013, 06:51:30 PM |
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What are the towels doing under the front table legs?
maybe the floor isn't level? |
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svennand
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April 21, 2013, 06:53:36 PM |
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What are the towels doing under the front table legs?
Hehe havent got concrete on the floore jet, so its to get the table in level=) |
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induktor
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April 23, 2013, 01:00:20 AM |
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Hello, This is my first mining rig, done entirely in aluminium 3mm thick, screws are all 1/8 directly screwed to the aluminium (previously threaded) (is that well said?, english not my first language, don't know how to explain it properly). The original plan was to put 5 boards, but I'm pretty close to the power consumption of the power supply (750W PSU, and I'm using 450W for 4x7850 and the sempron processor). the HD is temporary as I plan to boot from a flash thumb drive. This gear gives 1GHash/s (BTC) at stock speeds and eats 450W, I know, small for what i have seen here but it's my first attempt, hope u like it.  other view:  side, with only one card and the cablesaurus extender (they are great!)  |
BTC addr: 1vTGnFgaM2WJjswwmbj6N2AQBWcHfimSc
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Marrs
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April 23, 2013, 02:30:49 AM |
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Hello, This is my first mining rig, done entirely in aluminium 3mm thick, screws are all 1/8 directly screwed to the aluminium (previously threaded) (is that well said?, english not my first language, don't know how to explain it properly).
I think it looks great! The motherboard looks like it's resting on top of some aluminum (?) pegs. Did you make those or buy them? This gear gives 1GHash/s (BTC) at stock speeds and eats 450W, I know, small for what i have seen here but it's my first attempt, hope u like it. 1 Gh/s sounds low for four 7850s. I have two 7850s, one gets 320Mh/s at 1050 and the other gets 350Mh/s at 1150. Are you running at stock? |
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induktor
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April 23, 2013, 02:46:11 AM |
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I think it looks great!
The motherboard looks like it's resting on top of some aluminum (?) pegs. Did you make those or buy them?
Thanks I buy them, they are for electronics (not PC), I actually had them from a previous project they are quite expensive, like 0,4 U$D each.
1 Gh/s sounds low for four 7850s. I have two 7850s, one gets 320Mh/s at 1050 and the other gets 350Mh/s at 1150. Are you running at stock?
Yes I know , I am runing at stock (860 Mhz) I will love to get more juice from them, but i don't want to destroy any, GPU's are expensive here and have no warranty in my country. The hottest card (the one closest to the PSU) runs at 60 C, so I think that i am ok with the temperature so far, but not sure how safe will be to OC them. |
BTC addr: 1vTGnFgaM2WJjswwmbj6N2AQBWcHfimSc
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QuiveringGibbage
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April 23, 2013, 07:46:12 AM |
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Bitcoin is at the tippity top of the mountain...but it's really only half way up.. |
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klondike_bar
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Merit: 1005
ASIC Wannabe
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April 23, 2013, 08:06:02 AM |
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I think it looks great!
The motherboard looks like it's resting on top of some aluminum (?) pegs. Did you make those or buy them?
Thanks I buy them, they are for electronics (not PC), I actually had them from a previous project they are quite expensive, like 0,4 U$D each.
1 Gh/s sounds low for four 7850s. I have two 7850s, one gets 320Mh/s at 1050 and the other gets 350Mh/s at 1150. Are you running at stock?
Yes I know , I am runing at stock (860 Mhz) I will love to get more juice from them, but i don't want to destroy any, GPU's are expensive here and have no warranty in my country. The hottest card (the one closest to the PSU) runs at 60 C, so I think that i am ok with the temperature so far, but not sure how safe will be to OC them. best technique is to underclock the memory a bit, as that reduces the heat production and is uneccessary to mining, and increase the core speeds slightly. If noise is not as issue, you can manually increase the fan speed setting as well to get a few degrees drop to temps. So long as the card runs smoothly and at a constant temperature and load, up to 65C is not an issue. (some drive thier cards up close to 80C, but that is risky IMO for the reasons you mentioned) |
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HellDiverUK
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April 23, 2013, 04:14:14 PM |
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 MSI H77MA-G43 board, Celeron G540@1.6GHz, 2GB RAM, Powercolor HD6970@880/1375, Powercolor HD5870@stock, 80GB Seagate HDD, 500W OCZ CoreXtreme PSU, Windows 7 Pro N. So far, so good. Waiting on a beefier PSU arriving. Smoke hasn't got out of this little 500W unit so far, which is pretty good. Love OCZ PSUs. Upgrades waiting to go on - Zalman 1000W PSU (used off eBay), 64GB SSD boot drive (less power consumption than the ancient Seagate), 4GB RAM. Running at just under 790MH/s. Not bad for a machine made out of scrap and eBay cheap parts. |
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