Will there be another generation of water cooled miners? Some user's just can't run something in their homes that sound like an airplane taking off the runway. I'd love to see a more efficient water cooled model running at least 2+ TH/sec. This 800watt for 1TH is getting expensive.

I have had two pump failures and they have responded quickly and a shipment from within the US was sent out on each one. I shipped out my defects today. Forgot yesterday.

Good for you! You are able to get free electricity, right?

There was a problem with the pump. It was the second pump that failed and now my father's pumps are starting to fail. These are are from the very first batches of the C1. When pumps fail on 1 or 2 out of 6 it is coincidence, but when they start to fail on 4 or more out of the 6 then it turns into a fact. I hope the alternative pump I've been using holds up. When I switched it to the syscooling pump air pressure would gain in the loop within an hour. Then I switched it to the alternative pump I purchased on my own and has been running closed loop no air pressure problems for several days now. If it was the syscooling pump I'd have a small explosion. Nothing else was changed. Once I found out the syscooling pump was somehow sucking air into my loop or cavitating bubbles from all the testing I've done, then I cleaned out the system and tried the Ironside Coolant again which is pre-mix. It's just nice to know when I come home I won't have water all over the place and possible dead C1. That's the short story.

You run your rigs at home? Only reason why a PSU would be too loud, right?

The weird pressure one is fixed. I got my hands on one of those Ebay pumps, dumped the dirty hoses and flushed out all the old stuff the best I could and even tried that Ironside coolant again (blue this time) and it is running fine. I'm still getting my original defective pumps replaced for back up purposes only. My father is going through the same problems right now, so I'm trying to help him out. I told him to RMA his pump that seized up, but is still going to purchase that one from Ebay which is working ok with mine. He's first going to try it with distilled water and kill coils, and if that doesn't work will try some special coolant he found on FrozenCPU. We are still getting a return on each C1 running then at home, it's not a lot but we want to keep them going for as long as possible. We need to shoot some Viagra into the bitcoin USD/price.

So you are probably pulling a little over 800 watts for only 1000TH/sec.

This is why I have to baby sit my C1's everyday. Can't leave them alone for one day without me having to reset them or cold reset. Since the firmware doesn't tell you how watts are being used you have to put a kill-o-watt meter on it and constantly keep checking or you'll burn your power supply out and raise your electric bill much higher then you think. I'm still baffled how his rig can reach 1000+ watts  using mostly all defaults but don't leave your C1 attended for long periods of time without giving them a check.

Check hash rate.

Check for X's in status page. Almost ALL the time you'll end up with X's on the boards or hash marks all the way through. ------------. Why this happens, I'll never know. I've owned other miners from different companies and never ran into issues like this.

Check your temps.

Check the watts it is pulling from the wall. (this is your basic USA model, which is priced good and works well.)
http://www.amazon.com/P3-P4400-Electricity-Usage-Monitor/dp/B00009MDBU


I'm not complaining, just frustrated on how much time I spend on keeping three C1's running. All I have to compare them to are other manufacturer's and I never had to babysit my other ones.

Did you have to increase the voltage to get that hash rate? I had to increase all my voltages to about 0755 for it to get up to 1000TH/s. Stock voltage of 0725 only would top off at 950GH/sec. 0755 voltage increase my watts to 800 from 765, so I'm using a little more electric to get there. As I said before a more stable firmware needs to be written for this miner. Maybe it can run 1000+TH/sec on the default 0725 voltage that comes that way out of the box.

Total of 6 C1's and 4 pumps already died. In the processing RMA'ing the last two. The one that just got replaced died on me again, so this is a second time it is going to get replaced. Ironically the miner that forced me to keep the fill cap open is currently running on a different pump with the fill cap closed. No pressure being created inside. Same exact thing is happening to my father C1's now. He has to keep the fill cap open. I suggested to him to RMA the pump to begin with and try another type of pump. The loop is supposed to be closed so no air/contaminants get inside to corrode the coolant. Soon as my father receives his "other" non syscooling pump and it works with a sealed closed looped with no builded pressure, then the problem points to the pumps.

He flushed his entire system out last Sunday. Cleaned everything out and filled the loop with distilled water and a couple kill coils. Give it an hour, unscrew the fill cap and already you can hear the air escaping. I seriously think some of the pumps are cavitating maybe creating air in the loop and slowly builds up. i don't even have to use the hose clamps if I didn't want to, since no pressure builds up at all. Algae my A$$.

We are in the process of elimination right now, and so far right now everything is pointing to the pump. Apparently this outcome is not happening on all the pumps, since I still have two right now working fine with a closed loosed.

I'll be shipping out my two defective pumps out to tomorrow vis UPS. One doesn't turn on at all and the other will run for 20 minutes and then just stop.

These C1's really need a new firmware. While other models have gotten many, this C1 has just gotten 2. His adverting speicifcations are not what is really happening in real life.

Is it safe to say anyone that is running their Sp2/3's at a data center right now, is losing money? (users with free electric not allowed to answer).

How can one of my father's C1's be 1000 watts at the wall? Freq is on default and voltage is only 730 or less. But his P3 meter is indicating this C1 minter is pulling over 1000 watts. What's going on here Bitmain? He had to do a cold reset and that finally brought it down to 800, which is still a little high. Have to keep an eye on things daily which is starting to be a pain in the ass. 800 watts it what it is supposed to be. I think there needs to be a new more solid firmware written to possibly take care of some memory leaks and watts increasing like that.

I get jealous some times knowing I can't buy the larger rigs. Even over electricity I'm more concerned about noise. Not a temporary fan change or a duct tape job, I do really need it quiet.

Isn't this the negative affect a bitcoin pool has with fewer members?

And they turned Eleuthria into the bitcoin police! So why are you making changes? If they consent to leave, what's the problem? Unless you are protecting yourself from possible fines or a financial slap hosting New Yorkers?

This pump was presented to my by user notlist3d who is here. I took his recommendation and started using it last night when my syscooling pump died and it has been great so far. Completely silent. I bought it from Ebay, but there is also a vendor in China that sells the same one too I think.

http://www.ebay.com/itm/381066536924?_trksid=p2060778.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

EDIT: I used Ironside liquid again, since I really wanted to see if it is that bad or not. I had one blue bottle that I had from when I originally purchased the green. I replaced the dirty hoses and flushed everything out with water. Added in the new pump, filled it up and started it up. So far so good. We will see in a few days. I can't really believe I don't see more people on here with pump/loop issues. Or just just skip the whole warranty process and do their own thing. Can't be a coincidence that my father's C1's and mine also all having issues.

This may sound weird, but if you remember I always had to keep the fill cap open because of pressure. Pressure so high it would just spew liquid out of all the least restrictive pathways it could. Even after a cleaning, new hoses, new liquid I still had this pressure. Dogie, who was just a paid person to keep is quiet in here said it was algae, but algae doesn't grow in one day and doesn't form as a dust. I think the pressure came from the syscooling pump. I think it may have been cavitating every so slightly creating air bubbles in the loop. And after a certain amount of time liquid would just spew out of fill hole closed. Because every single time I would turn my radiator 90 degrees and get a stream of bubbles out of it. Move to the future, now, the only thing different is a different pump. I now can keep the loop fully closed and I don't get any air bubble build up anymore. This of course is all a guess. Lots of variables.

My 2nd pump failed (been replaced already) again. Doesn't leak or anything, just doesn't power on. I have to RMA it. So I'm using a backup pump that I had which I did not want to use, but no choice.

Algae is %100 smelly, slimy, sticky and just yuck. What we are finding in our loop is a white substance, some of it in like powder form. If you remove the loop tubes and get inside the tubes with your finger you would have this white powder like substance on your finger. It isn't algae, but it is happening to several miners here on the East Coast that are separated by 2 hours. All miners in kept in the dark, no sun light.

The thing is, %100 of coolant is made of some liquid and that liquid is most likely distilled water. So all these high priced coolants not sure I believe in. Maybe I'll just give the old car coolant a try. Been around for years and has a proven track record.

notlist3d,

That pump you got on Ebay, do you have any pictures of it working and how has it been for you?

Environmental? Yea, we have pointy ears, drink diesel fuel for food and come from another planet. Dude, they're all sitting in a dark basement and have been running fine since day one. For all three of my father's and one of mine having the same issue cannot be environmental. We live 2 hours apart from one another. Unless this mysterious environmental issue is following me.

And the substance/algae is not slimly or gummy. It is more like a chalk when it dries, and it is white. A fine white type powder sticking on the insides of our clear tubes.


One the first picture you can see the tubes turning white. That's not algae. But this white stuff has to be coming from the inside of the loop somewhere. Maybe the aluminum block is breaking down or the radiator? That's my only opinion on what could be happening. And the tubes to the left are of course new replacement tubes.


Then this picture is of inside the pump. This is not algae. If you rub your hands on anything it kind of turns into a white powder. And the pump spinning wheel, that's colored white, that was covered in an entire sheet if this white  substance, easily washed off by water.




Algae to me is a gummy, slimy, smelly growing substance in nature. This stuff was nothing like the kind.