Topic: ANTMINER C1 Discussion and Support Thread - page 78. (Read 129130 times)

They'll just be plugging it in for half a second to check the motor is good. The danger with running pumps dry is that the coolant is also their... coolant ... and if bearings were let to overheat they would seize.

Its 25W, and each blade is <200W pre PSU. There are plenty of miners running 250-270W through single PCI-Es.

its a male connector, with the presumption that you could connect it to one PCIe connector on a blade, and the other connector would be the power supply cable. IMO, this is a bad idea because if the fan/pump load is >70w (Im guessing it could peak as high as 90W if all 4 devices are running full power) that plus the ~200W of a blade puts a pretty big power load on the single cable to PSU - around 275W which could easily burn out cheap cabling (A >1000W and/or GOLD-rated supply should be fine for this, but cheaper supplies with 18awg or thinner wiring could fail and start fires as even 16awg wiring starts getting warm over 300W)
*you could also connect it to the PSU directly as you mention, but not all PSUs have modular cabling sockets, particularly that are the same pinout as a PCIe socket*

shameless self-plug: I sell good quality 18awg Y-splitters - If you think you should take some precautions against putting 275W on a single PCIe connector, you could split the syscooling load across two seperate blades in the C1 - thus balancing the power across 2 PCIe cables from the power supply at ~240W (15% lower). See my signature link for details - i have lots available now
And dry-running a pump is terrible. Anyone will tell you that. Either test it properly or ship it untested. 2-3 seconds of testing could create the conditions that lead to early failure or leaks when a coolant is actually added.

Not sure as my RMA pumps and new harness are still in China in the slow mail.  No customer has received new harness yet.  I believe all have the dangerous possible firestarter harness.

And yes it's a horrible idea to run these pumps dry.  If you google it you will see it's laughable that anyone who is a liquid cooling company would do it.  Just Google "Should you run a computer pump dry".  Everyone agrees never should be done.   They are doing i think they were told to test gear, they were shipping out untested which could explain batch 1 amount of DOA or failing components.   The fact they brag about running pumps dry shows the knowledge of syscooling.

If it has a male PCI-E end on it can't you then just plug it into your modular power supply itself?

Also, this bit about DUST and cleaning the pump before use. Syscooling is suggesting we take apart the pump completely and clean it out with some water because it was tested before it shipped without any liquid in it. Doesn't running these kind of pumps without any liquid grind the pieces down?

I'm am going through a molex power cord to a 6 slot - 3 pin board.  It uses a molex cable direct from PSU to power it that's the beauty of that board.  Does not go through Hashing boards. Operates separate then miner but on same PSU.  This IS NOT made by syscooling and is not their harness.

http://www.amazon.com/Phobya-4-Pin-3-Pin-Splitter-Connection/dp/B007S3T4O0/ref=sr_1_3?ie=UTF8&qid=1416262920&sr=8-3&keywords=molex+to+fan

Why go thru the board at all?
This could happen again, if the pump dies, one of the fans die, cable harness gets yanked.

I'm thinking of going directly to the PSU (with the molex to 6 x3 pin fan connector)

Thanks to Bitmain especially Yoshi for help.  As I know I was scared that that wiring harness fried the whole board lucky syscooling just fried the fan controller (sucks less then total burning out, but yes still sucks)

With zero thanks to syscooling their gear is still traveling EMS and maybe in a few weeks I will get it who knows.   They did zero compensation for downtime with 2 pumps dead.  Just RMA me some more low quality gear on slowest possible shipping.  

Cost estimate for new pump was around 40 dollars each (shipping included).  And around 10 dollars shipped for molex to 6 3 pin fan connectors. (Allows me to connect without opening case).



Suggestion:
If you got first batch pump's with first edition harness to send in for a RMA. Even if it seems to work ok.  Mine first pump ran for around 6 days or so great then stopped, other ran for one more day then fried 2 boards.  Do not let them harm your miner like they did mine.   Send in for RMA asking for new harness also i suggest trying for pump as they have a higher then average faulty rate it would seem.

To get RMA email  [email protected]  or   [email protected] and send a picture.  I suggest doing RMA asking for new harness and pump soon as they do use EMS (Very slow mail from China).  I don't want others to have to wait like I did on gear and end up buying it since syscooling is so slow and hard to do rma.

1. Have you tried to reset the PSU used to power this Miner?
[Note: You may need to remove the AC Power cord completely from the PSU
for 30seconds to a minute]

2. and/or have you tried a different PSU?

3. Have you logged into your Router (IP= 192.168.0.1 -or- 192.168.1.1 is typical)
and looked at all of your devices to see if it is listed there?

4. What make and model number of PSU are you using?

5. What do you observe when you power the Miner up?

Please someone help me.

As I told I can not access antminer IP address unique and default. also reset factory button does not work. You said I should use SD image. I am not familiar with these.

I downloaded SD image (uploaded by dogie). now what? I use MAC os x. Please let me know what should I do step by step.

Thanks.

It's a male PCI-E power connector, it would go in one of the unused ports on the miner to pull power back out to run the fans/pump.
I'm running my C1 with just four PCI-E connectors and they don't really get warm (~180W each)

Considering this miner can take 8 PCIe they should have looked at problem before throwing a PCIe connector on it.   Who has 9 PCIe unless you use a server PSU or adapters?

But not surprising considering all the dead pumps, and harness of death the first batch got.   They should have looked at good old molex connection.  Maybe even split it where not all on one cheap wire.

I'm still waiting for their manager to ok compensation... wonder what it means that they never got back to me......

You might make sure you have shipping selected to you and not their hosting.  Hosting is much cheaper to ship to.

I think it happens by clicking refresh on the checkout page.

M

Looks like the shipping cost is showing artificially low, can you PM me an address to test please?

This has already been discussed. Look at the pictures in my C1 thread, the fans are 0.32A at max and the pump 1.2A at max. That's 2.16A through 4 cables which is fine.

In pool, there is 0.0 Gh/s and it is not mining.
Also I use switch for LAN cables and when I login to my switch panel, neither of these IPs are connected (192.168.1.91 and 192.168.1.99).

Why reset button does not work?
What is micro SD image? please explain and give me link and guide.

Can you see it mining from pool side? If so I would say it's IP is ok just different ip look at connected devices.

If all else goes wrong you could always use the image of the micro SD card i made and dogie uploaded.  With it you know what the IP is.  But first try to find it on current network.

Hello,

I have a problem with one of my C1 antminers (I have 4 C1).

The problem is:

I turned on antminer and used 192.168.1.99 and next adjusted 192.168.1.91 to it and next I did mining for 1 hour. Next I turned it off and went out of home. When I came back I turned it on again but 192.168.1.91 and 192.168.1.99 is unknown and I can not access it's settings from IP. Also I was unable to reset it by holding reset button for 3s, because after 3s nothing is happens.

Power is on and antminer c1 fan is working. network lamp is on. But hashing boards lamps are off.
RED light lamp upper network socket is on.

Please tell me what is wrong with this C1 and how I can solve this problem?

My other C1 miners are working fine.

The white plastic tray underneath was designed to go under a clothes washing machine.
I picked it up at Home Depot for $22