ANTMINER C1 Discussion and Support Thread

[thedreamer]

I need to swap out the power supply on my c1.  Right now I have a tx850m corsair on it.  I have a spare tx750m...can I use this power supply with the c1?

Only if you under clock it.  At standard freq with cooling gear no 750 is not enough watts.

Unless it's a seasonic or evga . At full speed mine use 800watts at the wall so any decent 750w will work. Problem is, most 750w supplies don't have 4 separate pci-e rails.

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[notlist3d]

I need to swap out the power supply on my c1.  Right now I have a tx850m corsair on it.  I have a spare tx750m...can I use this power supply with the c1?

Only if you under clock it.  At standard freq with cooling gear no 750 is not enough watts.

Unless it's a seasonic or evga . At full speed mine use 800watts at the wall so any decent 750w will work. Problem is, most 750w supplies don't have 4 separate pci-e rails.

Even with seasonic or evga I don't think a 750 will power at normal speed with cooling gear also hooked up to it.

[thedreamer]

I need to swap out the power supply on my c1.  Right now I have a tx850m corsair on it.  I have a spare tx750m...can I use this power supply with the c1?

Only if you under clock it.  At standard freq with cooling gear no 750 is not enough watts.

Unless it's a seasonic or evga . At full speed mine use 800watts at the wall so any decent 750w will work. Problem is, most 750w supplies don't have 4 separate pci-e rails.

Even with seasonic or evga I don't think a 750 will power at normal speed with cooling gear also hooked up to it.

During my testing I had a c1 in a seasonic 750w at full blast with everything hooked up drawing 801watts at the wall. No issues. I wouldn't recommend it for 24/7 running, but I ran it for a few hours. No overheating or warming of cables.
Most high end seasonics or evga can run 10%+ wall max. So my 750 as example hits 850w without skipping a beat.

Once I hooked a new sp20 which hit full blast to an evga 850 without realizing it. The miner drew 1020watts for a few minutes before I realized it. No problem running it though.
I also ran it briefly on a corsair cx750 without an issue.

[potatorage]

I was able to run two miners with one pump and two radiators. Temps are 4-5 degrees higher than before but the miners still function well. I'm currently trying to contact Bitmain for a replacement pump.

[soy]

I was able to run two miners with one pump and two radiators. Temps are 4-5 degrees higher than before but the miners still function well. I'm currently trying to contact Bitmain for a replacement pump.

I got this one on Ebay (12v DC Liquid Water Cooled Brushless Pump Tank For CPU CO2 Laser Water Cooling) for $16.81 free shipping.  Ordered March 3rd, delivered March 13th.  Seems equal to the stock with a caveat.  The stock coolant return is directed toward a vertical piece of plastic that allows one to know water is actually flowing by sight.  This has unmarked identical in flow and out flow ports that happen to orientated the same as the stock.  In flow and out flow that is.  The in flow tho is below the tank while the stock returns into the tank.  One can't absolutely know water is flowing by sight.  My two C1's are in series.  One pump fails the other will continue to pump to both.

[opentoe]

I was able to run two miners with one pump and two radiators. Temps are 4-5 degrees higher than before but the miners still function well. I'm currently trying to contact Bitmain for a replacement pump.

I got this one on Ebay (12v DC Liquid Water Cooled Brushless Pump Tank For CPU CO2 Laser Water Cooling) for $16.81 free shipping.  Ordered March 3rd, delivered March 13th.  Seems equal to the stock with a caveat.  The stock coolant return is directed toward a vertical piece of plastic that allows one to know water is actually flowing by sight.  This has unmarked identical in flow and out flow ports that happen to orientated the same as the stock.  In flow and out flow that is.  The in flow tho is below the tank while the stock returns into the tank.  One can't absolutely know water is flowing by sight.  My two C1's are in series.  One pump fails the other will continue to pump to both.

That's the syscooling SC-300T pump you bought. It has 100 l/ph less pumping power then the stock model.  That one alone may not push enough through in time if cooling two rigs.

[notlist3d]

I was able to run two miners with one pump and two radiators. Temps are 4-5 degrees higher than before but the miners still function well. I'm currently trying to contact Bitmain for a replacement pump.

I got this one on Ebay (12v DC Liquid Water Cooled Brushless Pump Tank For CPU CO2 Laser Water Cooling) for $16.81 free shipping.  Ordered March 3rd, delivered March 13th.  Seems equal to the stock with a caveat.  The stock coolant return is directed toward a vertical piece of plastic that allows one to know water is actually flowing by sight.  This has unmarked identical in flow and out flow ports that happen to orientated the same as the stock.  In flow and out flow that is.  The in flow tho is below the tank while the stock returns into the tank.  One can't absolutely know water is flowing by sight.  My two C1's are in series.  One pump fails the other will continue to pump to both.

That's the syscooling SC-300T pump you bought. It has 100 l/ph less pumping power then the stock model.  That one alone may not push enough through in time if cooling two rigs.

It's higher but i still love: http://www.ebay.com/itm/381066536924

It's been running for months on both I bought and if you are in US they ship within US so quicker shipping.  Is quicker then the syscooling one that comes with it and has a bigger reservoir.

[potatorage]

I'm having a major issue with corrosion  with my miners. I have the stock syscooling kits and they are producing gas and making the coolant smell. There are white flakes of stuff that accumulate in the loop as well.

[notlist3d]

I'm having a major issue with corrosion  with my miners. I have the stock syscooling kits and they are producing gas and making the coolant smell. There are white flakes of stuff that accumulate in the loop as well.

How long does it take to accumulate? Also you might post pictures.

[potatorage]

I flushed the loop yesterday and I woke up today to the pump squirting coolant out of the reservoir.

[soy]

I was able to run two miners with one pump and two radiators. Temps are 4-5 degrees higher than before but the miners still function well. I'm currently trying to contact Bitmain for a replacement pump.

I got this one on Ebay (12v DC Liquid Water Cooled Brushless Pump Tank For CPU CO2 Laser Water Cooling) for $16.81 free shipping.  Ordered March 3rd, delivered March 13th.  Seems equal to the stock with a caveat.  The stock coolant return is directed toward a vertical piece of plastic that allows one to know water is actually flowing by sight.  This has unmarked identical in flow and out flow ports that happen to orientated the same as the stock.  In flow and out flow that is.  The in flow tho is below the tank while the stock returns into the tank.  One can't absolutely know water is flowing by sight.  My two C1's are in series.  One pump fails the other will continue to pump to both.

!?! Just tapped this pump tank to bring a bubble to the top and the glue between the tank and bottom started leaking.  So, the two C1's down while I remove the pump and glue.  Meanwhile the C1's will go back up with 1 pump.

[potatorage]

I also have a board that stopped working just as this problem came up. It will short the power supply. I'm not quite what's going on. It seems like these miners are just falling apart right as the warranty period expired.

[opentoe]

I'm having a major issue with corrosion  with my miners. I have the stock syscooling kits and they are producing gas and making the coolant smell. There are white flakes of stuff that accumulate in the loop as well.

Just go back and read all about this issue. I had the same exact problem. Bubbles, gas, had to leave the fill cap open. White film material inside of the loop from somewhere....who knows. Only once I replaced the pump and used a different coolant then that crap Ironside I had clean loops %100 of the time. I used Feser One coolany with silver kill coils in my out and in my incoming lines. I had multiple pictures also back in this thread. "TheDreamer" now has my C1's and I suspect the loops are still clean and free of debris? I spend an extra $150+ on extra coolant and better pumps because of that problem. It was a big learning curve for me, but if I ever find myself with another water cooled miner, I'll know what to do. If you take your pump apart you'll see that white film covering everything in your pump. You can try to take the pump apart and clean it really good, but once you get to that stage you are better off flushing everything out and replacing the pump and coolant.

[soy]

I flushed the loop yesterday and I woke up today to the pump squirting coolant out of the reservoir.

I'll venture a guess...not all the air was flushed; it seemed full; remaining air expanded as it heated; coolant came out the port (if you had left it open to vent); coolant started boiling in the heatsink.

One of the advantages of running the pump(s) from a divorced 12v supply is that one can more easily run the pumps with the miner(s) shut down.  Running the pumps with the miners shut down is great for filling the system (e.g. suction and return into a gallon of distilled water) or just for purging.

[soy]

I was able to run two miners with one pump and two radiators. Temps are 4-5 degrees higher than before but the miners still function well. I'm currently trying to contact Bitmain for a replacement pump.

I got this one on Ebay (12v DC Liquid Water Cooled Brushless Pump Tank For CPU CO2 Laser Water Cooling) for $16.81 free shipping.  Ordered March 3rd, delivered March 13th.  Seems equal to the stock with a caveat.  The stock coolant return is directed toward a vertical piece of plastic that allows one to know water is actually flowing by sight.  This has unmarked identical in flow and out flow ports that happen to orientated the same as the stock.  In flow and out flow that is.  The in flow tho is below the tank while the stock returns into the tank.  One can't absolutely know water is flowing by sight.  My two C1's are in series.  One pump fails the other will continue to pump to both.

Okay, I originally ran the two C1's from the one stock pump no problem.  Then I added the second pump.  Ran great until I tapped the new pump to get an air bubble to the top and started a leak in the seam of its tank. 

Now back to running the two C1's from the one pump but am getting x's from the original C1.  The difference?  I had to add a piece of tubing when I added the second pump.   The metal barbs have a wide port and don't restrict flow.  This time I spliced the inflow and outflow of the pump taken out with a straight thru PVC with barbs.  Problem is the PVC straight through with barbs has a restrictive opening about equal to what one would find on the air hose disconnects that I previously avoided.

So, just restarted and after 5 minutes got an x again and more will appear.

The second C1 which sees water cooled in the automobile AC condenser has always gotten cooler water than the first C1 which gets its water from the stock radiator.  Even with the slower water flow due to the restrictive PVC, C2 shows no x's.  Up 7 minutes and six x's on the first C1.

I'll now shut down and take the PVC out putting the hose to the condenser instead of the PVC.  If after I purge air again the original C1 runs with no x's then those x's were due entirely to the more narrow port of the PVC barb.  PVC barbs by design are thicker walled than the metal barbs.

[soy]

And running with a pump/fans power supply divorced from the miners, it's easy to shut down the miners power and forget to shut down the pump which leads to a bit of a mess once a hose is separated.

I should note that it's raining here and as many have observed high humidity doesn't afford as much cooling.

[soy]

Spoke too soon.  Back up, and x's are appearing in the one C1 again.    Wonder if it's related to the f=243.75M/0675V I'm running for efficiency.
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Okay, up 55s at normal power and frequency and no x's............1m34secs and still okay...............2min11sec 1,019 GH/s(avg) and no x's........3min15sec and all okay

Odd.  It's happier at full power.

[thedreamer]

Spoke too soon.  Back up, and x's are appearing in the one C1 again.    Wonder if it's related to the f=243.75M/0675V I'm running for efficiency.
--------------------

Okay, up 55s at normal power and frequency and no x's............1m34secs and still okay...............2min11sec 1,019 GH/s(avg) and no x's........3min15sec and all okay

Odd.  It's happier at full power.

You're running at 0675v still at full blast?

[notlist3d]

Any idea what this means one of my c1's is showing the status one asic chain smaller it has all "ooooooo oooooooo" but is in a smaller font size then other 3.

[soy]

Spoke too soon.  Back up, and x's are appearing in the one C1 again.    Wonder if it's related to the f=243.75M/0675V I'm running for efficiency.
--------------------

Okay, up 55s at normal power and frequency and no x's............1m34secs and still okay...............2min11sec 1,019 GH/s(avg) and no x's........3min15sec and all okay

Odd.  It's happier at full power.

You're running at 0675v still at full blast?

To get more efficiency a week or so ago I knocked the C1's down to 243.75M/0675

No, no, I did recall, but I was wrong, didn't jot the numbers down before changing, but thought the original settings on the C1's had been 250M/0750 but I was mistaken.  Ran at that for a little while then searched and found 250M/075 to be the default on these C1's.

As I said, to get more efficiency a week or so ago I knocked the C1's down to 243.75M/0675 so the two would be drawing about 9.5amps each on a 20 amp circuit tho they had been running 10a each for a while and the breaker wasn't warm to the touch.  Hot summer days I needed to leave the breaker box door open so a living room breaker didn't trip with the AC on - later added two 15 amp lines and that's no longer an issue.  So one can easily tell if a breaker is prone to trip as it will be warm.

For some reason, perhaps because of the humidity, after switching back to a single pump driving water thru two C1's, the original C1 was coming up x's.  I jumped to the conclusion it was due to having added a slightly restrictive PVC barb but taking that out didn't correct the x's.  The x's were corrected when that miner was put back to its original settings of 250M/0725.  Now the two miners draw 10a and 9.5a, breaker cool.

When my S5 arrives, a circuit I had put in for my living room treadmill will be disconnected and a new temporary 15 amp line will be run to the back room.

The second C1 is still running at 243.75/0675 and gets 986.66GH/s(avg).