whonesta
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July 30, 2014, 05:45:44 AM |
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Would love to actually see some "pictures of your mining rigs"! neptune rigs SO Glad I got refund for my 2 x Neptune.. would have been wiring nightmare 10 boxes and then 2 months later another 10 boxes.. UGH. Thank God for BitmainTech.
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Unacceptable
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Activity: 2212
Merit: 1001
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July 30, 2014, 06:11:44 AM |
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I live in norway so no walmart etc stores here Only 3 large retailers that do overall gadgets in walmart style but not walmart prices or selection sadly. So its either small fans ment for bathroom exhausts at 15$ or the engine cooline fans i found at 30$. Next is industrial gear at well not so fun pricing. on the plus side i do have 12c or less outside 10months of the year, so semi-cold air to use. downside is that since there is at most 1hot week of summer, there is no demand for diy A/C etc You have an auto junkyard near you Electric engine fans run on 12 volt,get a scrap one or 2.They move pretty good CFM & should be cheap They're waterproof,so you could mount them outside & since they're DC,you can reverse the rotation if needed
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"If you run into an asshole in the morning, you ran into an asshole. If you run into assholes all day long, you are the asshole." -Raylan Givens Got GOXXED ?? https://www.youtube.com/watch?v=9KiqRpPiJAU&feature=youtu.be"An ASIC being late is perfectly normal, predictable, and legal..."Hashfast & BFL slogan
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cruzader
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Activity: 47
Merit: 0
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July 30, 2014, 01:10:43 PM |
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I live in norway so no walmart etc stores here Only 3 large retailers that do overall gadgets in walmart style but not walmart prices or selection sadly. So its either small fans ment for bathroom exhausts at 15$ or the engine cooline fans i found at 30$. Next is industrial gear at well not so fun pricing. on the plus side i do have 12c or less outside 10months of the year, so semi-cold air to use. downside is that since there is at most 1hot week of summer, there is no demand for diy A/C etc You have an auto junkyard near you Electric engine fans run on 12 volt,get a scrap one or 2.They move pretty good CFM & should be cheap They're waterproof,so you could mount them outside & since they're DC,you can reverse the rotation if needed Going with 2x engine cooling fans from a local carparts warehouse. http://images.biltema.com/PAXToImageService.svc/product/large/200003258914" 2200rpm 80watt 12V - 530cfm, so 1060cfm total. 70$ new for both so fairly cheap, hopefully that is enough and if not a third will be added for 1590cfm total. Rough sketch. https://i.imgur.com/eNlsyOv.jpg2x 4" ducts from each fan going to a 2x4" adapters pointing out the window gap (might skip the adapters depending on how flimsy they look) (live on street level in the middle of a city so not very comfortable leaving the window open beyond its outer locking point.) got a window on the other side of the shelf also to take in cold air, got room for 8x ducts in the window so can go up to 4x 4" for each fan if needed. So budget/cost: Cooling - 110$ shelf - 25$ miners - 3370$ psus/wiering - had already Total - 3505$, so 0.95$ per gh/s with miners/shipping/cooling etc
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buckrogers
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Activity: 2752
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July 30, 2014, 03:23:13 PM Last edit: August 12, 2014, 10:04:07 PM by buckrogers |
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Well I'm dr. spock I'm here to rock y'all
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Zeta0S
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Merit: 1031
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July 30, 2014, 03:31:30 PM |
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smracer
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Merit: 1021
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July 30, 2014, 03:41:03 PM |
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Going with 2x engine cooling fans from a local carparts warehouse. 14" 2200rpm 80watt 12V - 530cfm, so 1060cfm total. 70$ new for both so fairly cheap, hopefully that is enough and if not a third will be added for 1590cfm total. I tried these fans in the GPU days in 2012. They are extremely fucking loud and they get very hot. I had to disconnect them after a few days because they smelled like burning. I don't think they are meant to be run all the time. I used gable fans from home dept instead. 2200CFM.
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phillipsjk
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Activity: 1008
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Let the chips fall where they may.
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July 30, 2014, 07:57:34 PM |
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You have an auto junkyard near you Electric engine fans run on 12 volt,get a scrap one or 2.They move pretty good CFM & should be cheap They're waterproof,so you could mount them outside & since they're DC,you can reverse the rotation if needed If they are brushless motors, you can not just reverse the polarity without letting the magic smoke out. Brushless motors are essentially AC motors with an integrated controller that handles the conversion (and starting) for you.
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James' OpenPGP public key fingerprint: EB14 9E5B F80C 1F2D 3EBE 0A2F B3DE 81FF 7B9D 5160
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hurricandave
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Activity: 966
Merit: 1003
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July 30, 2014, 08:13:19 PM |
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You have an auto junkyard near you Electric engine fans run on 12 volt,get a scrap one or 2.They move pretty good CFM & should be cheap They're waterproof,so you could mount them outside & since they're DC,you can reverse the rotation if needed If they are brushless motors, you can not just reverse the polarity without letting the magic smoke out. Brushless motors are essentially AC motors with an integrated controller that handles the conversion (and starting) for you. Most current aftermarket automotive cooling fans are manufactured intentionally as reversible. They are typically very load as well.
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jfederkins
Member
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Activity: 296
Merit: 10
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July 30, 2014, 08:27:54 PM |
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Neptune card in Novec 7100...
Coolness! What are you using to recondense it, or is it just a test setup? How much did you pay for the Novec, if it's not rude to ask? It was $350 shipped for a gallon of the Novec 7100. I used a couple of peltier chips and some heatsinks to condense the Novec. It worked and dripped back down while it was running. I have a much bigger tank on the way with some large radiators installed for the final unit. How fast is the submerged stapler?
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whitegrey
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July 30, 2014, 11:31:38 PM |
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Question of higher interest to me; how silent is it?
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klondike_bar
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Merit: 1005
ASIC Wannabe
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July 31, 2014, 01:31:28 AM |
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You have an auto junkyard near you Electric engine fans run on 12 volt,get a scrap one or 2.They move pretty good CFM & should be cheap They're waterproof,so you could mount them outside & since they're DC,you can reverse the rotation if needed If they are brushless motors, you can not just reverse the polarity without letting the magic smoke out. Brushless motors are essentially AC motors with an integrated controller that handles the conversion (and starting) for you. can confirm that not all DC-powered fans can opperate on reverse polarity. Not all will vaporize into forever-sleep, but some simply wont spin, or will spin strangely.
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buckrogers
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Activity: 2752
Merit: 1183
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July 31, 2014, 04:39:24 AM |
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Neptune card in Novec 7100...
Coolness! What are you using to recondense it, or is it just a test setup? How much did you pay for the Novec, if it's not rude to ask? It was $350 shipped for a gallon of the Novec 7100. I used a couple of peltier chips and some heatsinks to condense the Novec. It worked and dripped back down while it was running. I have a much bigger tank on the way with some large radiators installed for the final unit. How fast is the submerged stapler? Yes indeed! How Fast IS that Stapler running at??? I want one if it at least gets an ROI!
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Well I'm dr. spock I'm here to rock y'all
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kingscrown
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July 31, 2014, 04:57:44 AM |
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#miningporn at twitte and instagram - remember
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Unacceptable
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Activity: 2212
Merit: 1001
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July 31, 2014, 05:02:54 AM |
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You have an auto junkyard near you Electric engine fans run on 12 volt,get a scrap one or 2.They move pretty good CFM & should be cheap They're waterproof,so you could mount them outside & since they're DC,you can reverse the rotation if needed If they are brushless motors, you can not just reverse the polarity without letting the magic smoke out. Brushless motors are essentially AC motors with an integrated controller that handles the conversion (and starting) for you. can confirm that not all DC-powered fans can opperate on reverse polarity. Not all will vaporize into forever-sleep, but some simply wont spin, or will spin strangely. It must of been because I was working on older cars 92 chevy 454 SS pickup was just one that if connected backwards it would spin backwards,oh well,YMMV
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"If you run into an asshole in the morning, you ran into an asshole. If you run into assholes all day long, you are the asshole." -Raylan Givens Got GOXXED ?? https://www.youtube.com/watch?v=9KiqRpPiJAU&feature=youtu.be"An ASIC being late is perfectly normal, predictable, and legal..."Hashfast & BFL slogan
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fusa
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Activity: 33
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August 01, 2014, 12:08:15 AM |
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RoadStress
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Activity: 1904
Merit: 1007
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August 01, 2014, 12:31:32 AM |
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Just finished the Antminer Hood H1. Running a couple Habaneros at 1.4TH/s combined down below as well. Are Antminer fans pulling air? If not where is all the hot air going?
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Soros Shorts
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Activity: 1617
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August 01, 2014, 01:39:34 AM |
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Just finished the Antminer Hood H1. Running a couple Habaneros at 1.4TH/s combined down below as well. Are Antminer fans pulling air? If not where is all the hot air going? Looks like there is an exhaust duct on top of the hood, probably with a high enough CFM fan to match the combined hot air output of the S3 fans.
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RoadStress
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Activity: 1904
Merit: 1007
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August 01, 2014, 02:05:25 AM |
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Just finished the Antminer Hood H1. Running a couple Habaneros at 1.4TH/s combined down below as well. Are Antminer fans pulling air? If not where is all the hot air going? Looks like there is an exhaust duct on top of the hood, probably with a high enough CFM fan to match the combined hot air output of the S3 fans. Oh I missed that. But still it looks like the exhaust duct is a bit too small. I see that it's pulling air from both left and right, but it's size is only a half of antminer for each side.
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xjack
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August 01, 2014, 02:53:28 AM |
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Just finished the Antminer Hood H1. Running a couple Habaneros at 1.4TH/s combined down below as well. Are Antminer fans pulling air? If not where is all the hot air going? Looks like there is an exhaust duct on top of the hood, probably with a high enough CFM fan to match the combined hot air output of the S3 fans. Oh I missed that. But still it looks like the exhaust duct is a bit too small. I see that it's pulling air from both left and right, but it's size is only a half of antminer for each side. Ants are pulling air from front towards back. The bottom of the hood is open as well. Top is 6" duct with a 400cfm turbine exhausting the air. Ants actually went up 1 degree in temp, but ambient came down 10 degrees, so my wife and my habaneros are running much happier.
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