klondike_bar
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Activity: 2128
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ASIC Wannabe
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July 02, 2014, 09:57:21 AM |
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Two alternative setups for the gigampz boards: you can fit 2 16awg wires per terminal if you need to balance larger loads. I sell both the 6" 18awg splitters and 24" 16awg leads in my signature link
This is what happens when you use adapters with thin wires unable to carry a load. notice this is an 8pin ATX to 6pin PCIe adapter that burnt up under 200w load, probably only a 22awg wire at best. it even melted into a nearby fan wire.
notice the difference between the burnt-out adapter and the 18awg y-splitter I sell. There is also a 16awg tip from the 24" cable visible, which is a little bit thicker again.
Think you've posted this in enough threads yet? I updated my sales thread and thought that an example of some cord setups plus what cheap cables look like after burning through may be relevant to this thread. #miningrigfireporn |
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smracer
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Activity: 1055
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July 02, 2014, 07:15:58 PM |
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Neptune card in Novec 7100. This was just a quick test. Hopefully I will have more numbers tomorrow.  |
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chadwickx16
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July 02, 2014, 07:30:28 PM |
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Neptune card in Novec 7100. This was just a quick test. Hopefully I will have more numbers tomorrow.
WOW!!! My brain knows it's ok, but I still would be terrified sticking a miner in liquid. |
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NotLambchop
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July 02, 2014, 07:51:26 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? |
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smracer
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July 02, 2014, 08:04:00 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.  |
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Cablez
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I owe my soul to the Bitcoin code...
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July 02, 2014, 08:22:39 PM |
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I am surprised the VRMs have so few bubbles. I would have expected them to be much hotter.
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Tired of substandard power distribution in your ASIC setup??? Chris' Custom Cablez will get you sorted out right! No job too hard so PM me for a quote
Check my products or ask a question here: https://bitcointalk.org/index.php?topic=74397.0
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NotLambchop
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July 02, 2014, 08:24:20 PM |
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@smracer: That's awesome. The peltiers are sandwiched between the heatsinks? Can't wait for more pics  |
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smracer
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July 02, 2014, 08:43:56 PM |
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I am surprised the VRMs have so few bubbles. I would have expected them to be much hotter.
I was surprised as well. Not many bubbles at all coming off the VRMs. I am uploading a video to youtube and I will link it as soon as it is done. |
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jimmothy
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July 02, 2014, 08:58:27 PM |
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Neptune card in Novec 7100. This was just a quick test. Hopefully I will have more numbers tomorrow. Looks pretty sweet. Few questions about your setup: Why is the pcb tilted instead of flat? How are you dealing with the pressure? Any vents? And do you think it would work without the peltier cooler assistance? |
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smracer
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July 02, 2014, 10:02:41 PM |
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Looks pretty sweet.
Few questions about your setup:
Why is the pcb tilted instead of flat?
How are you dealing with the pressure? Any vents?
And do you think it would work without the peltier cooler assistance?
The PCB is tilted for no reason. It just kind of sat that way due to the cables pulling on it a little. There is space at the top for pressure to escape. Sure it would work without the peltier chip in an open bath. You will lose fluid over time though if you don't condense it. I am using a much bigger box for my final unit and hopefully I can fit 20-25 Neptune cards in the box with a very large radiator. I will add them 5 at a time until I can't dissipate the heat anymore. Here is the video - https://www.youtube.com/watch?v=gk3Vydo-L58 |
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rograz
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July 02, 2014, 10:23:31 PM |
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I am surprised the VRMs have so few bubbles. I would have expected them to be much hotter.
I was surprised as well. Not many bubbles at all coming off the VRMs. I am uploading a video to youtube and I will link it as soon as it is done. The VRMs shouldn't generate that much heat tbh so when you have a efficient way of cooling them they should run quite cool, a few watts can easily create a 100C hotspot if there's no efficient way for it to dissipate. |
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antirack
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July 02, 2014, 10:35:32 PM |
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Sure it would work without the peltier chip in an open bath. You will lose fluid over time though if you don't condense it. I am using a much bigger box for my final unit and hopefully I can fit 20-25 Neptune cards in the box with a very large radiator. I will add them 5 at a time until I can't dissipate the heat anymore. Here is the video - https://www.youtube.com/watch?v=gk3Vydo-L58Welcome to the club of immersionists smracer  How many amps is that TEC you are using? How many watts do you have at the wall (or 12V) in this setup? Here are videos of the AM BE200 and SP SP10 in case you missed it: http://www.vimeo.com/datatank/ |
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crashoveride54902
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July 02, 2014, 11:10:54 PM |
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Looks pretty sweet.
Few questions about your setup:
Why is the pcb tilted instead of flat?
How are you dealing with the pressure? Any vents?
And do you think it would work without the peltier cooler assistance?
The PCB is tilted for no reason. It just kind of sat that way due to the cables pulling on it a little. There is space at the top for pressure to escape. Sure it would work without the peltier chip in an open bath. You will lose fluid over time though if you don't condense it. I am using a much bigger box for my final unit and hopefully I can fit 20-25 Neptune cards in the box with a very large radiator. I will add them 5 at a time until I can't dissipate the heat anymore. Here is the video - https://www.youtube.com/watch?v=gk3Vydo-L58what was the temp when it was running for awhile? that is awesome man nice job |
Dreams of cyprto solving everything is slowly slipping away...Replaced by scams/hacks  |
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Cablez
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I owe my soul to the Bitcoin code...
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July 03, 2014, 12:26:06 AM |
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Yes, the temps would be very interesting to know.
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Tired of substandard power distribution in your ASIC setup??? Chris' Custom Cablez will get you sorted out right! No job too hard so PM me for a quote
Check my products or ask a question here: https://bitcointalk.org/index.php?topic=74397.0
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smracer
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Activity: 1055
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July 03, 2014, 01:00:56 AM |
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Yes, the temps would be very interesting to know.
I will set it up again tomorrow and take temp readings. I only had a short time today to mess with it. From what I remember though all the dies were at 59C +/- 2 |
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crashoveride54902
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July 03, 2014, 01:31:50 AM |
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Yes, the temps would be very interesting to know.
I will set it up again tomorrow and take temp readings. I only had a short time today to mess with it. From what I remember though all the dies were at 59C +/- 2 nice...also temps of vrms too on adv. page thxs do you think temps will be higher when you have more units in there? |
Dreams of cyprto solving everything is slowly slipping away...Replaced by scams/hacks |
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Xian01
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Activity: 1652
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Christian Antkow
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July 03, 2014, 03:19:27 AM |
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This is an amazing photo. Thanks for sharing ! |
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Searing
Copper Member
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Activity: 2898
Merit: 1464
Clueless!
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July 03, 2014, 06:45:18 AM |
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Looks pretty sweet.
Few questions about your setup:
Why is the pcb tilted instead of flat?
How are you dealing with the pressure? Any vents?
And do you think it would work without the peltier cooler assistance?
The PCB is tilted for no reason. It just kind of sat that way due to the cables pulling on it a little. There is space at the top for pressure to escape. Sure it would work without the peltier chip in an open bath. You will lose fluid over time though if you don't condense it. I am using a much bigger box for my final unit and hopefully I can fit 20-25 Neptune cards in the box with a very large radiator. I will add them 5 at a time until I can't dissipate the heat anymore. Here is the video - https://www.youtube.com/watch?v=gk3Vydo-L58Always happy to meet someone more 'crazy' then my self.... well played sir...well played indeed (he wins we can all go home now) Searing |
Old Style Legacy Plug & Play BBS System. Get it from www.synchro.net. Updated 1/1/2021. It also works with Windows 10 and likely 11 and allows 16 bit DOS game doors on the same Win 10 Machine in Multi-Node! Five Minute Install! Look it over it uninstalls just as fast, if you simply want to look it over. Freeware! Full BBS System! It is a frigging hoot!:) |
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Trillium
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July 03, 2014, 07:09:55 AM |
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Hope you will add a control loop to turn off the power if the cooling loop fails or reaches some critical temperature. Imagine several thousands of dollars of fluorocarbons evaporating.  |
BTC:1AaaAAAAaAAE2L1PXM1x9VDNqvcrfa9He6 |
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DrG
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Activity: 2086
Merit: 1035
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July 03, 2014, 07:23:18 AM |
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Looks pretty sweet.
Few questions about your setup:
Why is the pcb tilted instead of flat?
How are you dealing with the pressure? Any vents?
And do you think it would work without the peltier cooler assistance?
The PCB is tilted for no reason. It just kind of sat that way due to the cables pulling on it a little. There is space at the top for pressure to escape. Sure it would work without the peltier chip in an open bath. You will lose fluid over time though if you don't condense it. I am using a much bigger box for my final unit and hopefully I can fit 20-25 Neptune cards in the box with a very large radiator. I will add them 5 at a time until I can't dissipate the heat anymore. Here is the video - https://www.youtube.com/watch?v=gk3Vydo-L58Always happy to meet someone more 'crazy' then my self.... well played sir...well played indeed (he wins we can all go home now) Searing No crazy would be if instead of using fans and radiators he used a heat exchanger with pipes that flowed through an arctic river in Iceland or something  But yes that is way cool. Thumbs up for mad scientist of the week |
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