Topic: ANTMINER C1 Discussion and Support Thread - page 28. (Read 129188 times)

Syscooling sells a S5 kit to convert to water cooled.  I personally don't think we will see a C2 since they went to selling a kit.   But I could be wrong.

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.

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.

Sure, an hour after they were ran for 4 weeks.
Not out of the box.

Even Bitmain warned users to use a specialized coolant
* Coolant: If you choose an aluminum radiator, you can use deionized water with an additive, or specialist coolant.
If you buy a copper radiator, you must only use specialist coolant.

When they talk about an additive, they aren't just talking about a kill coil (silver)
they are also talking about an anti-corrosion additive

At elevated temperatures, I would think the corrosion process would accelerate.

The thing is I think he mentioned it happened in a hour.   That seems very quick to be corrosion and bacteria to the level he showed.  I personally use coolant aswell in mine.  But I think a hour is awful quick for the amount of build up for it to be corrosion unless the inside is just horrible.

my stock settings as it was shipped from factory is 250mhz @ 0760V Mine is a batch2

Distilled water with a kill coil is insufficient..

The kill coil (silver) acts as a Biocide (only) to stop algae.

You also need an anti-corrosive additive in your Distilled water.

The pre-mixed coolants have all the additives already in them to stop corrosion and bacteria.

I have had good results with this
http://www.frozencpu.com/products/17472/ex-liq-262/XSPC_EC6_High_Performance_Liquid_Cooling_Premix_Coolant_-_1L_-_UV_Green.html

I personally am not holding high hopes of a C2 being made.  You will see syscooling is selling a S5 kit already.  That makes me think there is a good chance C1 is last of it's line.

"Knock on Wood" My C1 & Syscooling pump has been running 2-months non stop. Sucks to see people having problems with theirs, I have hopes that a C2 will be made one day. The peace and quite really takes the edge off of my girl. With her not having to hear whirling fans at a high RPM, makes everyone happy.

1.007 is the average speed since the last reboot. Yesterday my ISP cutted internet for an hour. Now my average is down to 1.004 on my 18 days uptime miner and 1.002 on my 10 days uptime miner. I'm sure this is not the first time internet is not working. This mean that that the miner real speed is surely higher than 1.007TH/s.

@opentoe

Can you post the ebay link to the pump you are talking about?

also, any other items need to be purchased to use this pump?

Thank you!!

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.

I need to run @ 0760. Stock voltage on last firmware.

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.

It stinks to put extra money in them.  But since i bought the ebay pump and molex to 3 pin adapter my life got much easier.   I suggest you think about it to get stability.

As far as the one that one that has weird pressure and ugly buildup I don't think above will fix it.  You might eventually take it apart to look at cooling blocks.  But that would be a huge pain to put back together.

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.

When it goes offline or stop hashing, please see if you can log into the Web Control Panel.  If you could, please screenshot the Mining Status Page. 

Thanks for assistance. Solved.
It was some network problem, had some problem with the switchboard.
Fixed, back in business and running on an average of 47-49 degrees max. Need more cooling, trying to keep it 40 degrees max.

However, still having problem with 2 units where it started up running for about 2 hours then it just went off the radar.
Restarted a few times and still nowhere to be found. Still trying to resolve this.