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Darn, was about to put the hammer down on an S5, waited while a Bitcoin-QT picked up 12 hours, did a bit of work, went to buy and BAM, the new low btc value drove up the btc cost.
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My great low pressure air hose used on the miners developed a leak from my using screw hose clamps instead of the split ring. Bubbles were circulating. I repaired the leak That was last night. I refilled and let the pump circulate water with the miners off until no bubbles were showing after shaking the miners. The miners started up okay and both ran over 1TH all day but I've been filling the tank most of the day as the level would sometimes drop. The tank cap is loose so no pressure builds. While watching TV the level dropped faster than I expected, this tonight, 20 hours after the first low water level. I noticed when my hashrate dropped into the high 900's on both miners. I filled the tank and bubbles stopped but C1#2 was only running at 7.5 amps while typically it runs higher. I shut it down and restarted but now the third chain is all dashes. I shut it down for 5 minutes and restarted. No improvement. Suggestions?
The other pump arrived in Atlanta today so I should have it tomorrow and will be able to split the systems.
PCIE to that board not supplying power.... And found the leak. Now the level should stay okay.
Up and running, just fine.
-----------------
Pump arrived. Put it in series, pushing into C1#2 -> radiator -> stock pump -> C1#1 -> condenser -> new pump. I like its LED as one can see water level easier in dim light. Very easy to cause the heavy, thick walled, air hose to leak at the ports when a hose clamp is used. Went to Lowes and in the plumbing where the hose is sold, one can only find permanent clamps which require the purchase an expensive crimping tool. Into the hardware section I found the heavy duty spring type clips. With these on the ports don't leak but very difficult springs. Asked about a special compression tool for these and was told he always used pliers. So, the two C1's are still in a loop. Wonder when they'll ship that radiator from China. As it is the condenser is doing equally well as the stock radiator, in fact just a little bit better than the stock radiator by a degree on the hashing board to see the cool water in each. Have noticed that when there's a leak and air gets in the circuit and the boards heat, the current goes way up.
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A difficulty with my C1#2. I changed the parameters including password and can log in on the gui. When I ssh in, I register the key in putty then try to log in but my password isn't accepted. Neither the new password nor password root are accepted in ssh.
Bothersome because I always like to command halt via ssh before killing power. I found wakeup was less troublesome in earlier miners.
Signed in with admin as password, then changed root's passwd.
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Ah, very nice. Pickup scan was on 3/5 and UPS will deliver my C1 tomorrow 3/8!
Pump is somewhere between Chicago and Atlanta.
Now if only I had a radiator.... The radiator core purchased on Ebay from a vendor in China has shown a tracking number for some time and shows acceptance and dispatch but may be on a slow boat. Perhaps an aluminum heater core from a junkyard or aluminum radiator w/its cooling fan. Car electric radiator fan is likely muy inefficient.
C1 arrived and looks great. Presently all hooked up to power supplies. Pump hasn't arrived. Radiator tracking is unclear, Processed thru sort facility yet clearly marked Origin Post is Preparing Shipment, Notice received origin is preparing to dispatch... So no radiator. Still in China I suppose.
Looked at a large aluminum condenser for $10. Will need to lash up some kind of hose interface. Will pick it up tomorrow and work on its hose connections. May have to JB Weld some leaks.
So, opting not to use the quick disconnects for their reduced fluid flow I'm going with the standard barbs. I have the nice low pressure air hose to cut up for water flow, 56 cents/foot, but picked up a $12, 50' PVC low pressure air hose from Walmart having threaded ends that match the C1. Instead of barbs I'll use lengths of this to connect to the condenser and pump. Pump isn't yet here but another day delay won't kill me given a barb is set in JB Weld on the condenser and won't be hardened until tomorrow. I have fans from my Asicminer Blade days. Five are mounted across with a diamond mesh metal shield to keep objects from coming into contact with the fans and breaking off a blade. I have more fans and mesh if these don't drop the temperature sufficiently. Scrubbed the condenser and applied air pressure while submerged and no leaks. It looked as tho a tube was mashed and would require cut, crimp and seal but I lucked out. When the pump arrives I'll circulate distilled water for a while, dump it, and replace then hook up the C1 Started using Eligius the other day with all miners pointed to a single address and that gave me a dependable read of how much btc my hashing earns daily. Bummer. An easy calculation given the Kill-A-Watt reading on my other C1 and cost per kw with its associated state and local tax (those raise it just a little over ½ cent per kw). A C1 just breaks even almost to the penny. I thought I was doing better than that. Of course if btc goes up that's great. I did feel new miners from the manufacturer might become harder to obtain and these will warm in the winter at a better cost than propane but that was a lesser reason for buying. So, I decided to shut down my Saturn to be fired up if btc goes high enough or otherwise next winter. I probably should shut down a lousy S3 that runs hot and has a falling hashrate problem. ------------ New pump still hasn't left Chicago apparently. When it gets to Atlanta, that night it would leave for the PO so as to arrive the next morning so it isn't going to be here tomorrow. Maybe I'll try daisy-chaining the C1's, pump->C1#1->radiator->C1#2->Condenser->back to the one pump. ------------------- Now wondering if the USPS is offering a get-the-customer-annoyed-international-shipping-rate-from-China. Well, have the condenser mounted in a window next to the radiator from the first C1. Pump output goes to the first C1. First C1 output goes to the condenser. Condenser output goes second C1. Second C1 output goes to the radiator. Radiator output goes to the pump. First C1 is fired up and running. Cooled by both the radiator and the condenser with water running thru the second C1. Now to configure the second C1 - and this is interesting. Figuring if the C1 couldn't get to internet, then even tho the hashing boards were seeing 12v, no hashing would go on and the C1 would stay cool. Grabbing a spare router, I connected to 192.168.1.99 with no uplink. See, the problem is that my miners are on a different subnet in a back room. The 192.168.1.0 subnet doesn't have a port back there. So, it was shut down my other miners, swap the cable to the 12.168.1.0 subnet, and configure from the living room or fire up on a router not connected to the internet tho without any water in the cooling, completely disconnected from any radiator. I tried the latter. I got in and started configuring but pretty quickly it stopped saving any inputs. I felt the coolant ports on the C1 and they were fairly hot. So, it shut down due to temperature is my guess. I tried removing the BBB and booting that on the .1.0 subnet but it didn't have a power port so I swapped the card into another BBB and it wouldn't boot, no heartbeat. Putting the card back in the BBB, closing up, I then put the second C1 in the back room and got the cooling system configured. Water is moving well. I'm glad I didn't use disconnects and only the thin wall barbs. Using the expensive low pressure air hose from Lowes and it is a pleasure. I think what I'll do now is take a couple of switches and run RJ45 to the back room just to configure. This is like pulling teeth. Also I was using an older outlet strip who's breaker was tripping mid-configuration. Thought one of my supplies was bad. So, C2#2 is up and running. Temperatures 30,34,32,33, about what C1#1 had. Now to restart C1#1 and see if I need to add additional fans to the condenser. ...just added 2 more fans. C1#1 38,40,39,41 1920RPM, C1#2 37,40,39,40 1560RPM |
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I'm seeing reference to a S3++. Would this be an air cooled C1? Heat a problem?
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I'm having an issue with a hosted S5. They changed my pools and i'm 100% everything is fine (Tested all the info at home) but they still show as dead pool.
Is there a kind of trick which you need to reboot the unit to make the change work ? I don't know if he only clicked save and not save and apply but still ...
thanks
You might try ssh'ing in, then 'screen -r', then hit 'P' which will bring up the pools list and change the data there. Make sure when you complete your changes to the pools you hit enter to go back to the hashing page, then hit "S" for setting, and the 'W' for write the config or next boot it will be back to what it was. |
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Ah, very nice. Pickup scan was on 3/5 and UPS will deliver my C1 tomorrow 3/8!
Pump is somewhere between Chicago and Atlanta.
Now if only I had a radiator.... The radiator core purchased on Ebay from a vendor in China has shown a tracking number for some time and shows acceptance and dispatch but may be on a slow boat. Perhaps an aluminum heater core from a junkyard or aluminum radiator w/its cooling fan. Car electric radiator fan is likely muy inefficient.
C1 arrived and looks great. Presently all hooked up to power supplies. Pump hasn't arrived. Radiator tracking is unclear, Processed thru sort facility yet clearly marked Origin Post is Preparing Shipment, Notice received origin is preparing to dispatch... So no radiator. Still in China I suppose.
Looked at a large aluminum condenser for $10. Will need to lash up some kind of hose interface. Will pick it up tomorrow and work on its hose connections. May have to JB Weld some leaks.
So, opting not to use the quick disconnects for their reduced fluid flow I'm going with the standard barbs. I have the nice low pressure air hose to cut up for water flow, 56 cents/foot, but picked up a $12, 50' PVC low pressure air hose from Walmart having threaded ends that match the C1. Instead of barbs I'll use lengths of this to connect to the condenser and pump. Pump isn't yet here but another day delay won't kill me given a barb is set in JB Weld on the condenser and won't be hardened until tomorrow. I have fans from my Asicminer Blade days. Five are mounted across with a diamond mesh metal shield to keep objects from coming into contact with the fans and breaking off a blade. I have more fans and mesh if these don't drop the temperature sufficiently. Scrubbed the condenser and applied air pressure while submerged and no leaks. It looked as tho a tube was mashed and would require cut, crimp and seal but I lucked out. When the pump arrives I'll circulate distilled water for a while, dump it, and replace then hook up the C1 Started using Eligius the other day with all miners pointed to a single address and that gave me a dependable read of how much btc my hashing earns daily. Bummer. An easy calculation given the Kill-A-Watt reading on my other C1 and cost per kw with its associated state and local tax (those raise it just a little over ½ cent per kw). A C1 just breaks even almost to the penny. I thought I was doing better than that. Of course if btc goes up that's great. I did feel new miners from the manufacturer might become harder to obtain and these will warm in the winter at a better cost than propane but that was a lesser reason for buying. So, I decided to shut down my Saturn to be fired up if btc goes high enough or otherwise next winter. I probably should shut down a lousy S3 that runs hot and has a falling hashrate problem. ------------ New pump still hasn't left Chicago apparently. When it gets to Atlanta, that night it would leave for the PO so as to arrive the next morning so it isn't going to be here tomorrow. Maybe I'll try daisy-chaining the C1's, pump->C1#1->radiator->C1#2->Condenser->back to the one pump. ------------------- Now wondering if the USPS is offering a get-the-customer-annoyed-international-shipping-rate-from-China. |
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Earlier reading of the forum there were reports of failed pumps. I wonder how many of those failed pumps were pushing into the quick disconnect couplers shown on Dogie's Guide. Those disconnects have ports half the diameter of the normal barbs.
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Ah, very nice. Pickup scan was on 3/5 and UPS will deliver my C1 tomorrow 3/8!
Pump is somewhere between Chicago and Atlanta.
Now if only I had a radiator.... The radiator core purchased on Ebay from a vendor in China has shown a tracking number for some time and shows acceptance and dispatch but may be on a slow boat. Perhaps an aluminum heater core from a junkyard or aluminum radiator w/its cooling fan. Car electric radiator fan is likely muy inefficient.
C1 arrived and looks great. Presently all hooked up to power supplies. Pump hasn't arrived. Radiator tracking is unclear, Processed thru sort facility yet clearly marked Origin Post is Preparing Shipment, Notice received origin is preparing to dispatch... So no radiator. Still in China I suppose.
Looked at a large aluminum condenser for $10. Will need to lash up some kind of hose interface. Will pick it up tomorrow and work on its hose connections. May have to JB Weld some leaks.
Looks like n_howe1205 on Ebay can't be trusted to ship an $89.99 radiator w/fans in a timely fashion. |
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I lost Eligius sometime in the last hour. It's almost 11AM 3/9/2015.
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So why the difference?
sometimes the 5s hash does drop and sometimes it does rise, I think it has to do with the psu but I'm not sure. The average stays about the same so I know the miner is working at about 1.1Th/s which is where I want it with my current setup. I could always do more hashing but it doesn't seem as stable when it is not at this setting.
As an average as you stated dogie, I should be watching the daily hash on my pool and miner settings and now worry about the 5s and 30m, 10m on the pool?
I seem to be getting consistent payout, i guess that is all that matters.
becouse sometimes your antminer will find more shares and sometimes less, same as finding btc block - your ant trying to find many small blocks. Sounds like you're on Eligius. I'm there lately as well. I notice a drop in hashrate as reported by Eligius like now when I'm reading my morning news. The consistent payout is nice - large user base - but smaller payout per user shares. I wonder if they use a lower difficulty. Lower difficulty I assume means more data back and forth and more easily slowed with router diversion to my news websites. For years they've had a note about difficulty setting that I haven't seen. |
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Ah, very nice. Pickup scan was on 3/5 and UPS will deliver my C1 tomorrow 3/8!
Pump is somewhere between Chicago and Atlanta.
Now if only I had a radiator.... The radiator core purchased on Ebay from a vendor in China has shown a tracking number for some time and shows acceptance and dispatch but may be on a slow boat. Perhaps an aluminum heater core from a junkyard or aluminum radiator w/its cooling fan. Car electric radiator fan is likely muy inefficient.
C1 arrived and looks great. Presently all hooked up to power supplies. Pump hasn't arrived. Radiator tracking is unclear, Processed thru sort facility yet clearly marked Origin Post is Preparing Shipment, Notice received origin is preparing to dispatch... So no radiator. Still in China I suppose.
Looked at a large aluminum condenser for $10. Will need to lash up some kind of hose interface. Will pick it up tomorrow and work on its hose connections. May have to JB Weld some leaks.
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Is that a controller designed for 3-wire or 4-wire fans? Also, on 4-wire fans the blue wire is internally tied high and the PWM signal is actually done by pulling it low during the off time, so disconnecting the blue wire is probably better than giving it 12V directly. If the 12V you're feeding into the blue wire isn't current-limited, you could be roasting the board's fan controller.
A 3-wire fan controller may not work for a 4-wire fan driving the blue wire, because the 3-wire probably provides power on the high and a no-connect on the low instead of a no-connect on the high and a GND on the low.
I cut the wire. I could see how splicing 12v to it while leaving it powered from the hashboard would threaten the hashboard. I don't take the 12v from the 4 wire harness. I take the 12v from the power supply. A three wire PWM controller, drive wire to the blue wire, common ground, should work. I'll let you know. Tho slowing down the fan likely means excessive heat at the hashing board if hashing isn't throttled. I see the C1 throttles for overheating - a connector to the pump came loose and was found when I went to investigate 900GHS hashing where I was expecting 1THS. Didn't know that about a three wire but the controller I bought is a 4 wire. |
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Sorry for bringing this up, but installing a heatsink on that sensor wouldn't that give false temp readings? Don't you want the real temp reading, or trying to keep the temp sensor cooler is a good thing? Yes it would give false temp readings. They wanted to falsify lower temp readings in order to trick the fan into spinning slower (quieter). There is no benefit to the sensor itself. I had gotten an S3 to have its fans run faster by not putting thermal compound under the temperature sensor. Recently I ran 12v to the blue wire of its exhaust fan and it runs hard albeit loud. I now figure it was a mistake to skimp on the thermal compound under the temperature sensor. Heatsink draws less heat from that spot from the board making it seem hotter than it would be thus the fan runs faster but nearby ASICs get hotter. Must get in and correct that one of these days. Am looking forward to putting a single pole double throw switch on a C1 fan so it will be taking power for the fan from the hashing board until I need better cooling in the summer when I'll flip the switch and give it 12v and run it full speed. I've order a pulse width motor controller for a few bucks and am going to put it between the 12v and the blue wire. If you want the fan to run slower that would work. Thing is if the designer feels he needs that airflow then .... |
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Does Bitcon-QT use BONIC in any way?
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Tracking number is provided via PM  Did anyone else buy a C1 during or after the holiday and has it shipped?
I tried getting a cooling kit again. I put a C1 and a cooling kit in the shopping cart, went to checkout, removed the C1 leaving only the cooling kit, selected shipping method and destination, then upon confirmation was informed the cooling kit is Sold Out. And although I read somewhere that if one ordered 2 they'd be available, I tried getting two for a little over $152 and again was told they're sold out. |
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Tracking number is provided via PM Did anyone else buy a C1 during or after the holiday and has it shipped?
Thanks. |
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Hello guys,
I am having a problem with logging in on my S3+ after changing some configurations.
Basically the steps made were:
1. Updated the miner to a new mining pool
2. Changed the password to "password"
3. Rebooted and logged in with the password "password"
4. Checked if the mining was working on the new pool and everything was fine
5. Changed the network settings from DHCP client to Fixed IP
6. Turned off the miner
When I got to the new place to connect the miner it never showed on the mining pool. Tried to log in via port 80, it says that the password is not correct, tried via SSH and I get the same error.
The miner replies to pings from the fixed IP that I have configured and I can access to the login page via HTTP and it asks me for user and password via SSH.
I have tried several times the hardware reset procedure but with no success, it stays always on the last fixed IP that i have configured and it does not let me login using any of the passwords that i have used on the past.
I am really without any more ideas for testing this. Please help me!
I will tip anyone that can help me solve this issue.
Thank you very much.
Make sure you're hitting the reset button as it's not directly behind the hole. Cold start, power up, mash the reset button every 5 seconds for a minute; shut down and restart. |
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Why not just build a pressure chamber since you have to condense the working fluid and use R134a as its a fraction of the cost? Would only take 80-100PSI to hit a similar range.
I personally would be afraid of building a pressure vessel to contain the R134a. I suppose you could reuse something like a boiler or other already existing pressure vessels that would be sufficiently large. Immersive cooling with fluids that change phase at low temperatures brings all sorts of issues with safety. It would be very interesting to see if any chips could scale in performance with temperature. Eventually, when chips are cheaper, I'd like to do such testing but sadly now is the time for that to potentially make economic sense. Use 1-10x more power to achieve 1-2x higher hash rate = more profit given the high fixed costs of the chips and general low power requirements. I imagine in the future when I can afford to blow up dozens/hundreds of chips in testing, the fixed costs of the chips will be a fraction of their expected energy consumption over their lifetime and thereby make the process of chilling them a waste of money. Also the R134A available in auto parts stores 30 lb. cylinders for $199 probably contain lubricant and who knows if the lubricant is conductive. Those 30 lb. cylinders are sold with a clear stipulation that the R134A contained is not to be use in electric vehicles. There are research articles describing R134A cooling of electronic car propulsion electronics. |
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Anyone tried interrupting the pulsed power lead to the fan and putting an external PWM fan controller while leaving the speed sense connected?
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