Bitcoin Forum

Discussion and Support Thread can be found here. (https://bitcointalk.org/index.php?topic=841344.0)


The density of miners is becoming more and more important as the rapid growth of the bitcoin hash rate continues. The industry is trending towards industrial level mining, which leaves home miners without much choice for compact and quiet miners.

In response to this problem, Bitmain has developed a solution. The high end PC industry has used water cooling for years, and this expertise has been transferred to mining equipment. Bitmain is proud to announce our first Liquid Cooled Miner – the C1.

The 1st Batch of C1s are priced at 1 BTC per unit (excluding shipping), with dispatch estimated Oct. 25th  


Specifications:
* Hash Rate: 1,008 GH/s guaranteed
* Power Efficiency: 0.8 Watt/GH/s at the wall
* Voltage: DC 12V input, 70A recommended, no PSU
* Water cooling block’s interface: G1/4-8 thread screw
* One 14038 Fan working with water cooling block
* Temperature: 38~40 °C at 25 °C ambient temperature
* Noise: 40~45 DB at 25 °C ambient temperature
* Ethernet connection, Stand alone
* Certificate Compliance: FCC/CE


Recommend Accessories:
Note: Bellow recommend parts are not included in C1, but a purchase links recommended on bitmaintech.com.
* Water cooling pump: Flow 450L/H, Head Pressure 3.0m, DC12V/0.5A, G1/4-8 screw threads, 1 unit
* Radiator: Aluminum, 389mm * 128mm * 36mm, G1/4-8 screw threads, 1 unit
* Fan 12025: DC12V/1A, including grills, 3 units
* Transparent tubing (ID/OD): 5/16” / 3/8” (10/8mm), 3 meters
* 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.
* Connectors: G1/4” thread 10/8mm fittings to connect the C1 to the pump and radiator. Either compression fittings or barbs 4 units
* Spring clamps or worm drive fittings if you chose barbs, 6 units

Note:  
1)   Power consumption: Quoted figures depend on your PSUs efficiency, the ambient temperature and the accuracy of the power meter.
2)   PSU: You must provide your own ATX PSU. There are 4 PCI-e connectors for +12V DC input and all are required.

Features:

Stone alone: C1 mines are stand alone and do not require a proxy server or external controller. Setup consists of installing the water pump, radiator, filling the coolant, connecting a PSU and an Ethernet cable.

Cool: Skving technology is used to design New-Style water cooling block. This allows for a large heat-transfer area, which keeps the PCBs exceptionally cool. Thermal Images’ comparing liquid cooling and air cooling at 1TH/s hashing power

Quiet: Four hashing PCBs with 16 BM1382 chips per board are mounted to the both sides of two aluminum water cooling blocks, which are 250mm-long, 115mm-high and 13mm-thick. Each water cooling block contains 24 water channels for efficient heat transfer. A quiet fan works in tandem with the water cooling blocks in order to keep other board components on the C1 cool.

Stable and Accurate: Customized and optimized from the design of the S3+, the C1 is designed with the same PCBs and is supported by Serious-Double-Block Liquid Cooling technology. This allows C1s to benefit from the stability and accuracy of S3+ required to run 24 hours a day with minimal downtime.

Exquisite:
Die Casting Forming technology integrates the common heatsink with a water cooling block, compacts two water cooling blocks working in tandem. These technologies are saving space and allow for 1TH/s of power in a case the same as the S3.

C1 Pictures:
https://i.imgur.com/fhANhKx.jpg

---

https://i.imgur.com/qgIrZ8Y.jpg

---

https://i.imgur.com/QjYGrMF.jpg

---

https://i.imgur.com/luXRelu.jpg

---

https://i.imgur.com/uzOk6CD.jpg

very cool! Nice to see development that keeps individual miners in mind!

There is a special super good value kit made available by a 3rd party here (http://shop.syscooling.com/goods.php?id=45) for the C1. All you'll need locally is coolant (http://goo.gl/J3wBgd). [You can't send liquid via express air otherwise would be included in the kit.]

Really nice design/idea, but that price is just silly  :-\

...and the PRICE is : ...1 BTC + Shipping ...0.21BTC to USA = 1.21 BTC ... ;D

I will pass ...for now... ;)

ZiG

Nice, but bitmain should sell those water cooling parts together...

Why would anyone buy this? It is essentially 2 S3+'s crammed into 1 case with the added hassle of liquid cooling.

1x C1: 1 BTC + $50 in cooling parts + hassle of water cooling
2x S3+: 1.07 BTC   <-- Still the winner

Well at least you save some shipment charges......

2x S3+:
1.07 BTC
0.087 Shipping to US
= 1.157 Total

1x C1:
1.0 BTC
0.048 Shipping to US
0.13 (Cooling equipment $50 @ $377/BTC)
= 1.178

It doesn't save that much space since you still need room for the cooler.
It's not any quieter since the radiator will still have fans.
It's not any more efficient since it is using the same hashing boards.

I don't get it. I guess some people just have a hard on for liquid cooling. ???

Shipping to USA is WRONG ... ;D

You DID NOT Select UPS...in shipping methods...I WISH your numbers are correct... ;)

0.21 BTC for C1 ...

0.358 BTC for S3+

Cheers,

ZiG

Someone is going to be building a hotter chip soon.  ;D

Good catch. Haha. Doesn't change the outcome much

Thanks!

This is interesting, but I would be more interested in buying more S1 upgrade kits.

This could be an even bigger fail than the S4 was......

Or density of chips, which they're essentially doing here.

... can you not please. Also can you not use my copyright without my consent please.

I like the idea. I have all the water cooling stuff already laying around from a previous computer I had. With free power you can ROI with these, otherwise....

Not to spread anti-environmentalism, but an obvious great market for this is people who have unmetered water. ;)

That's the other side of the C1 - those who use large farm evapourative cooling can simply plumb in the C1 into their mains.

Winter is coming... I want to see someone use this as a hottub heater.

40C bath wouldn't be that fun :P

First post here -
 
Im glad to see someone getting into the liquid cooling for chips..now it is time to OC the crap out of these small chips and see what they can handle....

102-104F is perfect hot tub temp!

This is going to be a nightmare to setup and ship, will need to be drained and filled everytime its moved... bringing me back to the PC WC days.

That is a pain in the ass, but the extra space needed for a Triple 120mm radiator and pump is worse. I don't want that shit laying in my rack loose.

I'm trying to order the "Ant C1 mining cooling kit" from syscooling.com but, there is no shipping
method available to specify

So, I can't complete the order process..

I'm located in the United States

Anyone else have any luck ordering from syscooling.com?

Can you PM me your address, I'll get it fixed. Syscooling are working with Bitmain at the moment, we've fixed several bugs with their checkout but there are probably more.

Once they land in the US you can fill them up, use quick disconnects to separate the pump and radiator from the C1 and then ship them to end users via ground.

What copyright is that?  Also I think Bitcrane can do whatever he/she likes, free market and all.

Cool, but I'd expect the power efficiency to be better. I guess the main benefit is decreased noise?

Why not use a sealed system for cooling like others have done? I am lost on why anyone would even consider these  ???

I was curious as well unless OP edited the post? How can one validate if a copyright is valid and legit?

I am also curious...what trademark? I assume OP has not changed it since Dogie quoted it?

This is a great way to buy miners, it provides you with consumer protection. Plus you don't need to spend your coins when the value is depressed. Great information CryptoCrane, keep up the good work  ;D

The pictures he uploaded for the listing are mine, they're not stock photos. He doesn't have a license to use them, nor has he ever contacted me. tldr, he's profiting from my copyright.

You do realise he's charging 2x the list price?

Your copywrong?  :D :D :D :D

Nobody cares about your copywrong dogie, get back inside your kennel.

I just uploaded them to the webz by the way - maybe you should go chasing up your copywrong pics there instead of posting here, or scamming kids for VAT in sales, or advertising scammers on your guides......WTF?

Bad, bad dogie......

i aggree ,  charge 2x  from list price and suck price .. not recommended to buy in he's amazon thread ..suckkkk  ;D :P

corrected your above math - there is a small savings in cost, but IMO the C1 isnt revolutionary by any means, and will ship almost a week later than S3+ units will (which is a ~$20/0.05BTC difference)

Theres a higher risk of leaks and failure with this design i think, and for most people taking up slightly less space, with a large rad dangling someplace, wont offer much benefit as the S3+ is fairly easy to stack on its side anyways.

If someone can point to a 5kW-sized radiator/pump that could run multiple C1 units in parallel for under $150 though, thats a different story

Sigh, my reserved post was deleted, need to wait for Theymos to come on now to restore it. For now here are the links:

There will be some kits soonish for multiple units, but generally you can't put 5kW of heat in an arrangement like this [easily]. Coolant temps would be too high by the 5th unit, and the head pressure required to go through 5 sets of waterblocks would require pumps in series which is never a great idea. Remember the tube cross section is pretty low, so the minor losses become significant if you try and increase flow rate significantly - which is what you need to cool 5 units on one loop.

For now, the shipping on the second individual kit for now is only about $15, so you get the entire kit delivered for about $65.

hence why i think parallel tubing with distinct pumps but a common radiator (using a large 480mm, 1000cfm fan or similar) would be slightly more viable to transferring heat.

either way, for most users this seems pointless unless you either circulate the hot water into something useful (like heating a pool) or can easily hook 20+ of these units up and be able to transfer the heat 20 feet or so to a convenient opening.

They were charging me 35$ to ship to Canada.

As someone else said, the C1 isn't revolutionary but it does add a lot of potential for different uses. People can route the radiators outside (on one loop or many), larger farms can route it into their current evaporative cooling systems and by combining two S3s into one unit, the shipping costs per GH go down for everyone.

On the second kit?

Sorry missed it ! You're right, i'm wrong =>the shipping on the second individual kit

http://www.sidewindercomputers.com/wamo9xltblra.html

That might do it.

Or go to a wrecker and offer him $200 for 10 old radiators. :)

How would you run 5 independent loops off a single channel radiator?

@ Bitmain:

With the broken promises of updated firmware for S2 users & all the problems with the S4, PSU, firmware, etc, etc - I would like to see some proof that these will actually work as advertised before deciding to buy some or not.

1) Can you post a screen of one actually mining showing hash/error rate?

2) Will these work with all pools, including p2pool, or just a select few as with the S4?

3) Has the firmware been thoroughly tested this time?

4) What version of cgminer is bundled with it?

Thanks.

I miss the days when Bitmain mining gear would pay for itself in 6 or less weeks of mining. I just can't get over having to assume the risk for payback over 3 months.

if these were 2TH I would be all over these as I would just pump cold water from the fish pond outside and pump the hot water back out. No fans or radiators.

1 BTC each plus shipping plus local taxes are just a losing proposition.

good luck all the same to all who are biting. hope BTC hits over 1000 again this November to break you all into ROI.

In series, just like I used to do with 4x GPUs. Can easily dissipate 800W+ of heat on the standard 240 rad I was using back then.

You also dont need "specialized" coolant for any sort of watercooling, distilled water changed regularly will work just as well, at $.99 per gallon at your local store if that much.

When has Bitmain gear ever paid off in 6 weeks or less? Even with free power, they've never been that cheap.

We don't have 800W of heat, we have 5KW of heat - you simply cant get the flow rate required to do that in series before you get to the radiator due to the internal diameter of the tubing [and pathways in the heatsinks].


As usual, I recommend the safe options because lets be honest, what percentage of people are going to decide to spend a few hours to drain, flush, clean and refill their multiple C1s?

I have "specialized" coolant in my PC that I have not changed in 18 months. I check the levels every 3 months, and even after 18 months my radiator is still full. Granted the special coolant is a small amount of ethylene glycol with distilled water. Gotta agree with dogie, ain't nobody got time for that.

Just use a bigger pump. :)

You will notice I stated a standard 240 rad... that 9x120 rad with push pull could certainly handle 5 of these in series without issue. Infact... I might just do it.
You can also use a power powerful pump as Mr Teal pointed out. Ive been in the WC scene for a LONG time, built over 100+ machines needing to dissipate 1000+w inside a normal ATX case, and those parts were much more heat sensitive in delta T than ASICs generally are.

By my rough napkin calculations, a radiator with reasonable airflow should be able to dissipate a maximum (ideal) of 900w per 120MMx38MM Rad, giving you a theoretical maximum of 8100W dispensation for that radiator. Obviously I am intentionally ignoring things like airflow and water flow rate, but you get the idea.

problem with running in series is that you would likely see temps on each unit increase in succession, with the last unit(s) having the coolant entering at already-high temperatures and offering insufficient cooling. To avoid this, the flow rate (and thus static pressure from the pump) would probably be too much for the C1 waterblocks.

better would be to use a properly-valved system to run them in parallel. A valve on each C1's loop would adjust for any pressure/temperature difference between units.
 ___________________
 ___   _   _   _   _   __|
      ||  ||   ||  ||  ||

It could be possible that with a solution like this, the C1 could be employed with a large radiator and pump capable of cooling 10kW+ for <$500

Looks like a cool design but a closed loop design plus a lower cost would make it much more attractive.

Depends on the restriction of the blocks, but I'm guessing they aren't terribly restrictive. Flow rates wouldn't have to be excessively high to get reasonable performance in a BTC mining application. The specific heat capacity of water is ~4200J/(l*°K), or 4200(W*s)/(l*°K). To find out what flow rate you need to move a certain amount of heat with a specific temperature rise, it's just P/(C*ΔT)
So, if we want the outlet temp of the 4th unit (and inlet of the 5th) to be 30°K above the inlet of the first unit, with the first 4 units dumping 4kW of heat into the water (which is way more than you'd actually see) you'd get the following numbers.

Flow = 4000W / (4200(Ws)/(l°K) * 30°K)
Flow = 0.03175l/s
Flow = 1.9l/min

Not sure how many of these dogie has, but it'd be a cool test to do anyway. You wouldn't even need to use that rad, you could just run three of the 360mm ones he sells in series, and maybe a couple of the pumps to generate sufficient head.

*Edit: That's a minimum flow rate to keep the inlet water temperature of the last unit at a reasonable (say 65C with 35C inlet water) temperature. Depending on the block design you might need a higher rate to actually get 1kW per device from the block into the water.

This is what I'm saying. Its not a case of ramming a more powerful pump on it because the heatsink's paths are so restrictive. The minor losses alone would be absolutely huge, nevermind the major losses while trying to pump at high enough velocities to get the last 2 C1s cool. But its also irrelevent, because you're going to need an insane insane insane head pressure to overcome the losses AND get a sensible flow rate.

tldr, just buy 5 of these $50 kits and its k...

LOL at the armchair engineering talks....

Here an idea for you "engineers": use BTU..... and stop using marketing BS by PC cooling vendors.

btw, why waste time on this when you can earn money by just buying BTC at this low price?

LOL, master of Mechanical Eng eh? ..... What a clueless dumbass.

The fluid pressure in a closed loop is all the same. The system as a whole has pressure losses but the water pressure at the first and last C1 is the same.

I would ask your "imaginary university" for a refund if i were you.

When you have multiple restrictive blocks in parallel, you will not have bottle neck in the system. I dont know why ppl even consider series in this case.

Ppl really overthink this. You can have multiple loops with common coolant and heat exchange (ie. 1 pump for each C1, one giant rad - NOT in series....)

Lets try some maths:

flowrate = Q / ((heat capacity)* density *(Tout - Tin))

Q = 5KW
Heat capacity of water = 4.18 kJ/kg/K
Density = ~1000kg/m^3
Tout max = 65C to keep chips < 75C [pretty optimistic heat exchanger]
Tin = 30C [depends on ambient, I wouldn't be getting mine below 40C]
flowrate = ? m^3/s

flowrate = 5 / (4.18 * 1000 * 35)
flowrate = 0.0000342 m/3^s = 0.0341 L/s = 122 L/h

With a 6mm internal diameter [forced to this size by the heatsink channels]...

A= 0.0000283 m^2
flowrate = A*v
v = velocity m/s
0.0000342 = 0.0000283 * v
Therefore v would be 1.21 m/s.

Assumes perfect heat exchanger, which its not so we lose effective deltaT. Do remember though the size of the pump you're going to need to achieve 120 L/h with that level of restriction.

Assume 40% effectiveness due to single flow.
New v = 1.21/0.4 = 3.0 m/s

Minor losses:
v of 3.0 m/s
K of 40 [conservative, if you think of the number of times we have 180 degree turns in the  5 blocks + the radiator]
head loss (m) = 18.4m

Major losses:
Assume 20m of internal flow path = L
D = 0.006m
V = 3 m/s
Major losses = 30.6m

Total losses = 49.0m.

So if you can generate 50m of pump head, you can move the fluid.

I never said the full series solution is the best, just that people were overstating the amount of flow you need to keep the coolant at acceptable temperatures. 2l/min isn't much.

Having a large series string with a couple pumps does have other benefits as well in terms of reliability if there's a pump failure, and possibly easier routing of tubing.

The reliability benefit does not outweight the performance (temp consistency of the miners). If you're looking for reliability use flowrate + temp sensors for each loop.

Check your math, you're comparing W and kJ directly.

Edit: I see you realized your mistake and corrected it.

Yeah missed the preview button while I was writing it out, finished now lol.

I think your losses are pessimistic. Even using about double the flow rate we were talking about to keep inlet temperature down (1GPM) you shouldn't need 50mH2O of head. A common 360mm radiator like the Swiftech MCR360-QP has a pressure drop of ~0.2mH2O at 1GPM. Even three of those in series would only be 0.6m of pressure drop.
I don't know how those blocks are internally constructed, but most common CPU waterblocks are 0.5-2mH2O @ 1GPM. If those two blocks in the C1 are close to the 10mH2O at that speed you would need in order to get a 50m total drop, I would be extremely surprised and they would be a terrible design.

without the shipping cost, I would take one....

Do remember that the radiators only have essentially 3 180 degree turns and large flow channels in order to slow the fluid down. This works because of the extreme surface area. The waterblocks on the other hand (of which there are 10), has a small diameter channel and the flow snakes forwards and back 4x [4x 180 degree bends]. Each barb, fitting and slight bend then adds additional minor losses. The figures you're quoting are also for 9.5mm ID tubing, where as we're using 6mm.

Even if you pretend for a second there are zero minor losses through the entire system, just look at the major losses. There is about 1.2 metres of path in each block, so 12m of path just from them. The radiator has another metre internally, and you've got all the small bits of tubing and then the larger lengths of tubing. Even taking it down to 15m, that's a major head loss of 22.5m.

And yes, this style of waterblock is MUCH more restrictive than a radiator as you have to snake the channel because you have no internal fins for surface area.

How is it the shipping cost???

Dang.

Aquatuning requires a $75 USD minimum order.

anyone know of a different source for the fluid and quick disconnects
that they would recommend?

I never said it wasn't more restrictive than a radiator, just that it would be pretty terrible if ten of them in series had 50mH2O (71PSI) pressure drop at 1GPM.

Since Bitmain is selling these without matching hardware, it would actually be really handy if they could make flowrate vs pressure drop chart for them, similar to the one in this datasheet.
http://www.wakefield-vette.com/Portals/0/resources/datasheets/180-12,180-20.pdf

You don't happen to have a flow meter and manometer, do you?

And variable speed pump, no :P

Well, if C1 price is 1 BTC then I would like to buy S4 for 2-2.2 BTC. Bitmain?.. My coupon will burn out soon and I can't use it to buy an expensive S4...

As a home miner, I don't want to pay duty on the controller when I can buy a Raspberry Pi and use cgminer.
Also, I don't want to scrap the controller (as well) when it is no longer financially viable to operate the kit.

Please make a device like this (or air cooled) which can be powered by 1 ATX PSU and which has a USB connection - so I have a logical upgrade path from Antminer U2.

Perhaps such a device could also make use of the airflow from the ATX PSU.

Better still if you could sell a unit that came in less than the threshold for duty payments.

Otherwise, it's great to see you innovating.

Heh, send me one and I'll test it for you. ;)

One includes a PSU one doesnt.

Sure, just fill out your details on bitmaintech.com and send a bitcoin payment ;)

Unlikely to ROI and you seem to have to build half of it yourself :P

pass.

@ Bitmain: Pretty please?  ;)

Don't think that is too hard to do. Do they have some of them fabbed and running yet?

What would be the requirements to show a pass for #3?

Hmm i wonder if the C1 could run without the liquid kit.. there is still one fan there.. what if adding another one?

It will be bad idea.

This is really ridiculous here donate 1 BTC and built it yourself, unprofesional Bitmain......

They should include at least tubes and connectors but anyway too much hassle with watercooling.
Also shipping price (to Russia) kills the deal: 0.443 BTC for 1 piece!

I would like to buy this, just out of curiosity, if only I could use S2 buyer's coupon...  :-[

Aww, that sucks. Will it cost the same if u order 2?

You can use distilled water or Deionized water 。

You dont want to mine anyway, Putin will cut your dicks off

C1 water cooling kit already includes pipes, fittings and so on. Liquid with distilled or deionized water. The EMS shipping 60 $.

Les assume a faulty connection or a loose one.Fluids running and floating
 

Question

Would you place this miner in the same place together with
other equipment and electricity

But nice to think of home miners again
Its sure the first and others will follow

nice first step!!!

The S4 is more than just 2TH of hashing power. Its got an LCD (+0.05BTC), larger case(+0.1BTC), and a 1400W PSU(+0.8BTC).

That said, its overpriced and $1100/2.8BTC would be a fair price for it

he is talking about operating the C1 without any liquid cooling setup, with the hopes that a singluar fan will magically cool the device. It wont.

One of the biggest concerns I have, and one nobody is mentioning, is the mixing of metals.  These appear to be cooled with aluminum waterblocks, but people who already have decent watercooling gear (the majority of the people who will buy this) likely have rads with copper cores.  I have always been told to NEVER mix the two in a loop without the use of special corrosion inhibitors and/or specialized coolants.  Otherwise, you're basically creating a battery in your loop with different electric potentials... ionization... some chemistry BS that can damage your blocks/rads.  I assume that's why Bitmain says to use specialized coolant.  Which isn't a huge deal.  You can get a droplet bottle of  corrosion inhibitor that will last longer than the C1's profitability for pretty cheap at most WCing retailers.

Bobsag, since you're familiar with WCing, what are your thoughts here?  Is this something that people need to be aware of or has the "mixing metals" thing become just a dated myth now? 

As far as I know, nature hasn't repealed galvanic corrosion. If you're going to run copper gear with aluminum you'll absolutely want a corrosion inhibitor in there.

What Mr Teal said.
I havent had to use alum block in forever... copper is better and does not have the same corrosion problems. This is a certain deal killer for me.

The link for the "ANT C1 mining cooling kit" is working now.  $40 for shipping to the US?  Is that correct?   I only see one shipping option.

Yes, and about $15 for adding a second kit.

Actually, it's $24 shipping for 2nd kit.  I decided to order 2.  I'll either buy a 2nd C1, or sell the 2nd water cooling kit.

On coolant how much do you need for each C1?

It's in the list.  :)  1L (1 liter)

1L will do one kit easily. At 6mm ID you could get 35m of tubing out of it. But -150ml for the resevoir and about 250ml in the radiator. tldr, you'll use 600ml or so, potentially more if you use longer tubing.

I don't need S4s PSU. ) ATX or server PSU bought at local market is always better (especially if I can put it inside the miner case...).

*Get 2L if you think you might spill or want spare.
*^Optional but highly recommended.

So, the Quick Disconnects are really added to easily separate the pump from the radiator, right?

I've never dealt with a pump/radiator assembly like this before, to fill the entire system then, is
that done through the top opening in the pump? or some other method..

Thanks

Personally I would like to fasten the radiator, pump and whatever else at the top of C1 using some kind of installation rail, for example, from meccano.  ::)
In this scenario you will no need to often disconnect something...

Good idea, but incl. all accessories and shipping overpriced. Especially for people in Europe, which have to pay 19-22% VAT.

S2 seems like a better deal as compare to this and you can use coupon too..

Or C1 upgrade kits . sense it the same thing as a S3 So I'm guessing why not just sell them as C1 upgrade kits  for S1, it looks like it would would work .
 


extend the S1s just a tad longer  :P) .

the Quick Disconnect are not added in the water cooling kit,but G1/8-8 Tubing Adapter is included.as you say, the entire system is filled with coolant through the top opening in the pump.

Electricity rates make it viable in the EC?

Just wondering if anything is viable unless it is made locally in the EC this is true over everything that is being made today given the BTC price.

Do you mean S4?  ;)

Would swimming pool water corrode the water blocks?

Again.....

Would probably deposit a load of minerals in the blocks and gunk up everything. Maybe though, interesting.

What is the watt in total ? Watercooling and the c1 in one psu? 850w?

Yeah, 850-900W

I'd like to know this too - some info/answers would be nice......

Anybody buying this?

yes. the chlorine and other chemicals will speed corrosion and may even damage PVC tubing or the pump.

however - if you wanted to heat a pool you would use a heat exchanger with two loops - one being recirculating pool water and the other being hot coolant from the miner(s)

The question you want to ask is whether its the same controller as the S3, or the kind in the S4. I would imagine it uses the S3 controller, in which case it would act just like an S3 but show twice as many chips/hashes

It is like 2x S3's in one.  It is twice the hashing boards.  It has 4 hashing boards with 16 chips each, 64 chips total.  The controller is similar to the S3 but has 4 hashing board connections (or whatever they are called). 

Thanks, but I don't want to buy something based on what a member "imagines" the answers are, it's a lot of money, so I'd like to know the facts about what I'm paying for. It seems strange that Bitmain don't just answer the questions being asked - it would surely help members decide weather to buy them or not.

This is why I addressed the questions to @ Bitmain, but either they don't know or don't want to say......for whatever reason.

Thanks for all the answers I have 2 more questions.
1. Has it been tested where it is for sure 1 rm1000 will run the miner and cooling?   (I just want to be sure before i order PSU)
2. What is the point of quick disconnects? And where do the connect (Do you use connecting to miner itself of water cooling parts? Or are they in middle of tube?)

Sorry number 2 is so basic I just have used closed loop water cooling this will be new for me and I want to make sure I do it right.

The hashing boards are S3 boards with little to no revisions. [See here (https://farm3.staticflickr.com/2911/14507473700_f8cd2b1c39_o.jpg) for the S3 board]

The controller is S4 in architecture but its not the same board. [See here (https://farm6.staticflickr.com/5579/14693858872_23e087a64c_o.jpg) for the S3 controller and here (https://farm3.staticflickr.com/2945/15274035589_bd071e7cc5_o.jpg) for the S4 controller.]

1) I don't know if its been tested in that configuration, but a RM1000 is the perfect PSU for this unit. 8 PCI-E, 16AWG, 1000W.
2) The point of quick disconnects is you can separate the miner from the pump and radiator without having to drain the system. This is exceptionally useful when you have to move the miner as you don't have to hold three things at once, and if you need to ship the miner you don't have to fully drain the system [if shipping by ground]. If you have multiple units, you can also quickly switch and swap in case of a failure somewhere you need to test.

It depends on which set of connectors you get, some will replace the barbs on the miner, some will go in the middle of the tube. Its just going to depend on which matching pair you can find in stock.

The C1 controller appears to be based on the Beaglebone Black (BBB) open source design which has a 1Ghz Sitara.. this should make the web interface of the C1 much more responsive than what is experienced with the S3 miner.

This picture shows a fully populated BBB, it's safe to assume the included BBB will be a board stripped down to the essential components to run the C1 miner.. however, if your board ever failed it would be easy to replace with a BBB.

http://www.ti.com/ww/en/beagleboard/product_detail_black_lg.jpghttps://cdn.sparkfun.com//assets/parts/9/7/2/3/12076-03.jpg

The S2 used this stripped down BBB as well.  I believe a number of S2 owners replaced that controller with a "full" BBB.

I will wait until B1 ships before making a decision.

If I understand correctly,
C1 = 4S3+ in one box plus water cooling with BBB controller

Exactly my thoughts. If Bitmain don't want to show any stats or give details away, there must be a reason. Better to wait for the batch 1 guinea pigs to post the details when they get them, especially after what happened with the S4  ;)

I ordered one last night just for the heck of it.. because my one friend was into ordering one.. so I said order one for me also.

Total was 1.3722  BTC for everything* incl accessories... if you do the math its almost exactly the same as 2x S3+ at current pricing when you take shipping into account.

I'm planning on using a .999 Silver Kill Coil ($6.99) and DI Water.

I built a liquid cooled PC years ago, and I swore NEVER AGAIN.. just too much of a pain in the ass to maintain.  Oh well..

*I reimbursed friend for the order in 100% BTC even though the accessories were paid via a different method by him.

Its actually 2 x S3+

S3+ = 32 Hashing Chips on 2x PCB

C1 = 64 Hashing Chips on 4x PCB

TBH, given the S3 and S4 launch, I'm not touching this.

It's a crazy time in Bitcoin mining right now, and given the BTC/USD price currently, it makes more sense to purchase BTC outright than miners if you are looking for ROI.

Full Disclosure: 11TH farm + Full node contribution to Bitcoin network
https://i.imgur.com/BybD96Z.png

Please don't, you've just ordered a copper radiator with an aluminium block, right?

I don't believe so.  I ordered the recommended accessories linked from Bitmains Website from http://shop.syscooling.com/goods-45.html

Radiator	AT360 Aluminum Radiator
Material	Aluminum

Should I not use the silver + aluminum and go another way?

Was hoping to make the setup as trouble free as possible.

Liquid Cooling Sucks.. lol

It says aluminium but most radiators of this formfactor use copper channels internally so you can never be sure. The barbs are also [strangely] listing as having copper, so I wouldn't risk it.

Ugh.. WTF..  I looked at the specs of the recommended accessories linked from Bitmain, saw the word "Aluminum" and said great... I'm set.  Why would I assume they would be offering proper accessories?!.

If I can't use silver, can you even use DI with the proper additive? PT Nuke, something else?  I would think the DI is the most reactive liquid possible to use since it is stripped of mineral ions.

What is the BEST thing to use with the lowest amount of maintenance?

PT Nuke [which was replaced by PM Nuke wasnt it?] is just a biocide, its not going to stop the water corroding. Your best bet, as recommended is to get a premix coolant. Yes it costs $10 a litre, but its $10 rather than potentially having to replace $100 of components.

oh? Thanks

this is the radiator bitmain suggested - i doubt it contains copper (more expensie than aluminum anyways) in contact with the fluid

As I said, you can never be sure until you receive it as its pretty standard to coat the internal chambers with copper. What about the fittings listed as copper [again, probably coated]?

Yeah, I am wondering what frequency these are clocked at so we know if there is any headroom at all.

Do think a 850w gold power supply rated at 70A on 12v will be able to handle the C1? I know it will run at 100% capacity but I have  no use for it otherwise.

cutting it REALLY close - good chance you'll have to underclock in order to run stable, especially if the coolant pump draws an extra ~20w. IMO get a 1000W PSU and youll be fine, and your efficiency will be a bit better (most gold PSUs are ~91% efficient at 80% load, but only ~85% efficient at 100% load)

More S1 upgrade kits please!

I think it will not be a problem to run three C1s with one strong pump... will give it a try :-)

Is it possible to just buy the boards for the C1?

Your efficiency will be shot. Add 20% more watts to stay around 80%.

With the super cheap kits being sold I'm not sure there is a reason to. Removes all your redundancy with no benefit.

I agree. However, I still have a lot of old stuff here in my basement, so I'll only have to buy some fittings and new tubes. Especially with a 9-fan-radiator and a 1800l/h-pump, I guess it should be possible. In the worst case, one miner will be super-cool while the middle will be warm and the third one overheated...

What are these chips clocked with to begin with?

Heh, we have a company we contract for that has a couple Techniwell TW700s sitting idle. I wonder how many one of those could run? :)

So if i may ask; whats the required wattage to run a single C1 without over clocking it and whats required to overclock it. Please and thank you..

As i said many pages ago, RUN THEM PARALLEL, god damn you noobs (also since the block channels are quite small 6mm, make a cheap manifold - 1/2" to 3 x 6mm tubing)

 

0

All the C1 blocks will explode. You put to much trust into Chinese alu waterblock.

Did you really take his comment seriously? A 700 horse power pump? Seriously? You bothered to explain that a water block would explode?  ::) ::) ::)

Are you kidding... ;D

ZiG

Of course parallel and not serial. The available distributor I have leads from 1/4" to 3x10mm. Although the distance between the three exits is only some millimeters, I'm not sure if this will affect the flow to the third massively. It will take a bit of experimenting.

"To the moon" would get a totally new meaning....

No need for experimenting noob,

Fluid dynamic dictates since all C1 are equal in restriction, all of them will have equal flowrate.... gee  ::)

Great news :-) So I can wait for my sockwarmers to come.

you assume that all three C1 waterblocks are equal. Theres a high chance that there could be slight machining diferences, or slight barbs from the machining, that could cause slightly higher resistance in some units. Its not particularly likely, but it is still possible. (easy way to adjust for this if it was an issue is to put a small vavle on each loop of the coolant to compensate any flow differences

I'm confused ... is not necessary a PSU to start mining or is not included in price?

No PSU included

Wow nice - Bitmain has a "Pay with USD" option now upon checkout

Can anyone confirm what the frequency on these chips are?

I'd like to know if there is headroom for overclocking. Trying to figure out if getting 1100gh/s or 1200gh/s will end up eating 1000w+


I have asked a few times in the past  ???

That's because no one has one. They are the same as an S3 though, so if they're running at 1TH/s they're probably clocked at 250MHz.

I received .

Appears S4 USD payment only at this moment.

This was my concern :( I wonder if the 800watts is really 880

So the big question (and since it is early in the morning and I am skimming through these posts and I may have probably missed it........so all apologies) - what type of PSU should be used for the C1 and how much wattage should it have? I have seen all of the other details, but unlike Bitmain's other offerings, they aren't crystal clear on the C1's PSU requirements. Talk to me like I'm completely stupid and have just crawled out from under a rock

About 780w for the miner, 50W for the watercooling, requires 8 PCI-E. Still recommended to get a 1000W PSU though to get the best efficiency.

You might even want to look into one of the server breakout boards so you can get eight full cables. You probably need to get up into the 1300W+ range for ATX PSUs before you can find one with 8 individual cables, so with a smaller PSU you'd be looking at running with two plugs on a single cable. Depending on the cabling and ambient, that might be a little marginal.

The RM1000 has 8 PCI-Es on 4 branches of 16AWG cabling. Its almost as good as 8 individual 18 AWG branches.

i have to think about all these new developments.

I may have to wait for the 2nd batch or at least until some people post feedback on the first few arrivals before I order.   Also is the liquid cooling kit link not working for everyone else?

I'd disagree that a 16AWG cable with two plugs is almost as good as two separate 18AWG cables on a modular supply. Just looking at wire resistance it's close, the 16AWG will be 26% higher than two 18AWG and is obviously better than two plugs on a single 18AWG. On 17A of draw to a blade with 600mm of cable to the first connector, you'd be looking at 1.53W of loss and 90mV drop in just the cable with 16AWG vs 2.41W loss and 142mV drop with single 18AWG or 1.2W loss and 71mV drop with dual 18AWG. Not a huge difference, though one should keep in mind the contact resistance spec of the Minifit Jr connector can actually be as high as a 600mm run of 16AWG (7.9mOhms for the wire, while the contact spec is 10mOhm max initial and 30mOhm max after 30 cycles)

There's a couple disadvantages of running the two plugs on one cable though.

• Two separate 18AWG cables will have almost twice the surface area to dissipate heat from vs one 16AWG. That's why you see ampacity in a cable go up only 56% when you move up three gauges even though the resistance halves. Flat cables help with this, of course.
• Two plugs on a 16AWG cable pulls the entire cable current through the Minifit Jr on the PSU side. At 200W per cable this isn't terrible, but it's still a significant difference. At 17A per board that's 5.67A per pin vs half that with separate modular cables.
• Worse fault tolerance. If you're running one cable and one pin/wire is compromised for whatever reason, you can then be pulling the full 17A through just two pins, which is over spec. If you're running two cables and one pin/wire gets compromised, you're now pulling the 17A over five pins which is still fine.

I would say two plugs on a 16AWG cable is closer to two plugs on an 18AWG than two separate 18AWG cables even if just the wire resistance seems to show they're comparable. A lot of these issues aren't a problem two plugs on a fixed 16AWG cable though. If you find yourself with a supply that has two fixed dual plug cables and four modular dual plug plug cables, use both plugs on the fixed cable and a single plug on each of the modular ones to make up your eight plugs.

Not that the RM1000 won't work, but unfortunately not all 1000W PSUs are 16AWG on the PCIe cables. For instance the otherwise excellent rated Cooler Master V1000 uses 18AWG on its four dual plug PCIe cables. :P In most cases even dual plugs on 18AWG won't cause an issue, but you're still more likely to melt a plug at the PSU with a modular dual plug cable than with separate cables.

This pricing structure makes as much sense as a clown at a funeral.

C1 1TH water cooled = 1BTC
S4 2TH normal cooled= 3BTC

 ??? ??? ??? ???

The C1 isn't a complete system, and isn't by default rack mountable. You still need to buy a water cooling kit, some other miscellaneous things, and a power supply. Then when you get it, you need to hook it all up. The S4 you need to plug in and enter your pool details when you get it, and you're mining.
They're different products that can't be strictly compared on a $/GH/s basis.

Bitmain is telling that the S3 controller cannot be use for the S1 board, but the S2 and S4 use a similar one ?

I'm confuse ... anyone tried a BBB with some S1 ?

with a decent PSU, particularly with 16awg wires, you can use only 4 PCIe cables. Most of my S3 units (even those overclocked to 500GH) have only 2 PCIe cables (1 per board) without issue.

when ordering the cooling kits, is the 'International Express' option optional?

My order for the cooling kit now says shipped..

International Express ---> means it's coming DHL.

There were no other options available that I saw at the time of order.

cheers just ordered think the page was messed up to start.

yep,as long as your machine is mountable G1/4-8 thread for attaching a fitting,and heat dissipation is less than 1000w,our water cooling kit would work whatever your machine is.

exactly,you could choose from DHL,EMS or UPS.

I'm glad to say DHL,EMS and UPS are all available now,thank you for your choice.

our default express is DHL,if you have other express(EMS or UPS) at a low price and want freight collect,you could email us.

Do you offer cheaper shipping by regular air mail? (like what most ebay chinese stores use? )

I only have problem with ridiculous brokerage fee + duty with DHL and UPS.

I understand about the shipping time, but i dont mind that.

Why not use China Post?

any thoughts about overclocking the c1?

not likely. remember S3+ is rated at ~450Gh and C1 is two S3s in one box but already at 1000Gh

well,it depends,you could email us that we can know your detailed information. watercooling@ysun.net

Syscooling,

I had many of the same issues as others below.  I just ordered two C1 cooling units at $50 each. The total shipping was $67...do you not think this is excessive?  Surely there are less expensive means of shipping to the USA.  In addition, I had a number of issues with your site, including the "payment failed" message after successfully processing my paypal payment.  

I do trust that you have been paid, and will ship my order today.  Unfortunately I cannot see my order or tracking information since your site does not recognize my username / password combination, despite having them vaulted at creation.

May I suggest to you that many of us have VERY high expectations of Bitmaintech...so far my experience (and apparently the experience of many others on this forum) with your site leaves much to be desired.  This reflects poorly not only on your site, but on Bitmaintech as well.  

Please invest in creating a better user experience - if you can match Bitmaintech's user experience, you will sell MANY cooling units...if you do not, I assure you this community will find another source for the cooling kit.

Is there a new link to the C1 cooling kit?  the one listed on Bitmain's C1 page is not working.

It goes down every now and then, give the site some time.

Link to kit has been changed by shop, and Bitmain didnt update it, but now its ok.

Link was
http://shop.syscooling.com/goods-45

now is
http://shop.syscooling.com/goods.php?id=45

Kinda like the idea... Mining AND hot water at the same time...  :D

Could these be linked up to hot water radiator system?

Thinking of buying 2 but if this is possible then 4.

Unfortunately I have no idea about plumbing so is this possible, and if so easily done?!?

Consider C1s an investment, there's a good chance that there will be upgrade kits in the future. All you'd need is 4 new PCBs screwed into the blocks, everything else is ready to go [Note there has been ZERO suggestion of this from Bitmain, I am just personally speculating.] Even if Bitmain don't do upgrade kits, someone else could use the C1 template and sell PCBs + controller for them.

Maybe, I don't know what sort of head a radiator requires. Its likely though that the fluid won't get hot enough to do much use, and so the low area of the radiator would be a problem.

The fluid would probably be fine for applications that call for low grade heat, like radiant infloor heating. You would need a conventional radiator after the flooring as well though, essentially specced to remove the full heat load.

The biggest problem with these kind of dual use circuits is that you often need a relatively robust system of bypasses and controls to give you flexibility to control your secondary user of the heat and also deal with its often intermittent nature, unless your system is so small that you can always just run it full out.
I looked at doing a dual radiator setup before I settled on just using a bunch of closed loop coolers for my gear. It would have consisted of radiators mounted in the cold air return vent of my furnace (with a variable bypass valve), with the radiator output running outside to another radiator to cool the water down to ambient before reentering the loop. You could obviously continue to harvest heat from the water before you sent it outside if you wanted to; I already have a drain water heat recovery system but that would be an obvious addition.
In the end it would have been a lot more efficient use of the heat plus it would give lower temperatures to all the mining gear, but without years of expected use it just didn't make sense to devote the time and cost to it. Simpler to just have some units outside and bring more inside as it gets colder. :P

I have built a sock- and shoe-warmer/dryer - just waiting for my C1s for attaching them to the system. This is easier than a heating system - and the only way how I was able to convince my wife that more miners make sense :-)

Anyone thought about floor heating? maybe use few C1's to do the job

thank you for your advice,we are still working for it,but as far as we know,the express we list is the best choice.Chinese cheap express is not cheap on its foreign business.as for payment issue,could you inform us your purchase order no？you could email us(watercooling@ysun.net) ,we will check it out as soon as possible.

This. Remember if the carrier isn't international then they've got to pay for the domestic leg themselves, so it won't be much cheaper at all.

Update...Syscooling did respond to my email, confirmed they had received my PayPal payment and promised to arrange for shipment immediately.  Yesterday I asked for a tracking number; no response to that email as of this post.  With the expected ship date of the C1 just one day away, I sure do hope the cooling system gets here the same day or before.

The S1s were natively wireless and I modded all 7 of my S3s to make them wireless.  The reasons are pretty simple: I didn't want to run cable all over the house, I wanted to be spread them out on multiple power circuits throughout the house,  and I wanted the ability to easily move the miners depending on the weather (now that it's fall in the mid atlantic, I am saving some money on heating at night :)).

I ordered two C1s a couple of days ago, and now believe the controller board is completely different on the C1 than on the S1 or S3 and that it does not support WiFi.  Can anyone confirm / deny this? If wireless is not natively supported on the C1, does anyone have a good (inexpensive) way to mod the C1 to make it wireless?  The mod for the S3 was like 7 bucks a unit and took all of 10 minutes.  Thanks in advance for any advice.

Anyone know how many watts the cooling system uses?  I'm guessing around 30watts (around 15w for the pump and 3 fans at maybe 2w each on the low end).  Wondering if it would be possible to run 2 C1's (840w) on 1 1600watt EVGA power supply with 2 water cooling kits even though it's a little over specs, anyone already try this?  (70A each C1 plus water cooking kit x2 is more than the 133.3A 12v rating for the 1600w).

Probably more like 50w to run the fans and pump. Even if the psu doesn't constantly trip on overcurrent protection, your ac/dc efficiency will suck if the psu is pushed past 105% rating. If it's 92% efficiency at 80% load it may only be 85% efficiency at the load you want to put on it.

C1 and S4 uses differnt control PCB and no wireless feature is supported.

You can use wifi bridge like below


AntMiner Alternate Wi-Fi Mining

http://s24.postimg.org/a8a7ae5dt/009_wifi_bridge.jpg (http://postimg.org/image/a8a7ae5dt/) http://s9.postimg.org/d4vj990fv/010_wifi_bridge_box.jpg (http://postimg.org/image/d4vj990fv/)


Here is an easy solution for you and we tested it for over a week on S4 and so far it’s working.

You can use any similar items to make it work.  We picked readily available item at the US BestBuy Store.  Netgear Model#: WNCE2001-100NAS.  (Price was $49.99)

If you happens to be living in a dorm, apartment or wherever you can only access to the internet via Wi-Fi, this will make the Bitmain Antminer believe it’s connected to the wired Ethernet and this will not stress the miner.  

We purchased the above item to test it out with the AntMiner and it worked!

Will post a Kill-a-watt reading with photos for you guys later next week!

Thanks, I'm thinking the EVGA 1600w P2 (platinum) on a 230v line (should shave 3-4% efficiency which might run the 2 water cooling kits) might do it (might have to UnderClock the C1's 1 step).

Who needs cooling? Just use them to heat your home. ;)

Any news if C1 is actually shipping as stated or going to be delayed?
Anyone received the cooling kit yet ?

C1 is shipping in the order it was placed and the cooling kits are shipping, too!!!

If for some reasons, if your units are not shipping, please contact info@bitmiantech.com or PM BITMAIN or PM us

I can confirm I got my kits.  I have them sitting with psu's and liquid waiting for install.  I'm excited to see liquid cooled C1 in action.

Just waiting on my C1 to be ship.  So getting closer!

I spoke to someone else who received their cooling kits on friday - he is waiting for the C1's to arrive.

You do not need to lie, nothing is shipped .

I read about sending info, and ordered 2 x C1 Order Date 2014-10-19

Today, there is still the same text , Liquid Cooled Miner C1, Batch 1 are estimated dispatched on Oct. 25th
I have already 2014-10-27 and order status is still Paid Unshipped Valid.

Sounds Good!  Have the C1's started shipping?

Yep, from last Friday. Bitmain is working its way through the order queue now.

I can't get any information about the dimensions of C1 miner. Does it have the same chassis as the S3 miner? If not, what are the exact external dimensions of this miner? For the S3 miner the Bitmain's web page says "Size:  331 mm x 137 mm x 160 mm", but there is no Size information for the C1 miner?

Very similar. I'll let you know in a few days.

@BitmainWarranty,

Please post the C1 Miner "Manual" and "Firmware" to the Bitmain product support web page at:

https://www.bitmaintech.com/support.htm

Thank You,

Why do you need the software before shipping?

The manual could be to set up cooling kit where once it comes they just need to fill and connect to miner.

Software I cannot justify other then someone checking that they are being shipped.

Come on guys, it was a request..

My unit arrives tomorrow.

A Manual would be good for starters.

I am simply asking for the same information that they have listed for their other products
to be posted on their product web page.

Lucky You.

All  of my three orders status are still- Paid Unshipped Valid.

Tupsu,

My account says the same thing as yours  --> Paid Unshipped Valid

but, they shipped it on Friday 10/25/2014.

UPS to US

I received a notice email from UPS

Did anyone receive the Assembly Instructions with their C1 Cooling Kit?

I did not get one.

If you did please PM me or Post it to the forum.

Thanks,

No there is a great picture on the website that shows it connected.

Only thing I am unsure of is if we need to clean the radiator (some general installs of water cooling they showed cleaning it to get rid of possible metal fragments).

I ordered two C1s about a week ago, but they have not yet shipped.  I pinged BitMainTech earlier this evening for an ETA; no response yet. 

Also, although Syscooling.com sent an email with a DHL shipping number for the coolers, the DHL website says it is invalid and when I try to get the status of this order from the syscooling site, I get a 404 error.

On only a vaguely related note, has anyone used BTCrow to escrow BTC for private buy / sell transactions?  I'm trying to sell seven of my S3s and the potential buyer wants to use this service.  Thoughts?  Thanks in advance for any advice.

I was about to order but shipping is too expensive and brokerage fees by UPS will be expensive.

0.416 BTC ($146) for 2 units in Canada without brokerage fees.

Why are they not shipping with china post airmail? I'm sure shipping would be cheaper and brokerage fees would be handled by Canada Post for a lot less than UPS.

Maybe,but your miner won't burn down.

well,just be patient,your informaition will be showed soon in DHL website.any question you could email us(watercooling@ysun.net).

0.5A for pump,1.2A for fans,voltage is 12V,total watts is 20.4w.

My kit arrive today, here is some foto what is in the box.
http://s17.postimg.org/f0z8iib0f/C1_WC_kit_2.jpg

syscooling, can you offer regular air mail shipping option?

nice rig.. want it!!!

hope can buy as soon as possible  :'( :'(

I just checked my Bitmain account. My C1 has shipped via UPS to the US today. Currently awaiting clearance from customs(?). :)

+ payment in BTC is a must

I don't blame syscooling for my crappy shipping, I blame DHL and wish they used UPS or some other service.

My driver on DHL literally called and asked if I wanted to meet him in a town a hour away.    When he was told no... he would actually need to deliver the package magically I was told he didnt have the package and it would be a day.  Online it showed he had the package. Well I waited another day got it.  Never had a delivery guy want me to drive a hour before in my life.

I can verify they are shipping aswell.

Well, I have been patient. And I have sent an email to you concerning the fact that the DHL website still reports the tracking number you provided is not found.  I sent that email 24 hours ago and you have not responded.  I just checked the DHL website again and it still reports the tracking number as "not found" even though your original email with the tracking number from 3 days ago.  I imagine that the tracking number you provided is incorrect. For your reference the order number is 2014102315180.  An update or response to my email would be much appreciated.

Concur...both of mine shipped with an ETA to the East coast of 10/30.

Question:
Where does the 3x Fans and the Cooling pump pigtail plug in?

Photos on the syscooling web site looks like it plugs into the Miner... somewhere

Anyone have any idea where the cooling kit pigtail plugs in?

Syscooling gets all credit for this picture, it's on their site.   It shows everything plugged in.

So the power for the pump and fans looks like it's connected to somewhere inside the C1 and not directly to the power supply?

Shouldn't DHL waybills be characters? I thought only the individual parcels were 13 characters.

That's my order number with Syscooling.com, not the DHL waybill number.  However, the DHL "tracking" number they provided is 10 numerics.

@BITMAIN

Please confirm the location (PSU or Board)
to plug the 3x Fan And Water Cooling Pump pigtail in to.

http://shop.syscooling.com/article.php?id=8

yes,we could,kindly email and check with rita(watercooling@ysun.net).

http://shop.syscooling.com/article.php?id=8

http://shop.syscooling.com/article.php?id=8

Thanks for instructions!

Does anyone know what IP the C1 starts out with?  Just trying to get ready.

Most likely 192.168.1.99.  Thats what they use by default for all there other rigs.

Would be interesting to put 2 C1's into a Corsair Carbide Air 540 case (it has room for two radiators, but while the front can hold a 360mm radiator, the top can only fit a 280mm radiator).  Only would need to switch out one of the 360mm radiators (120mm x3 fans) on the top for a 280mm (140mm x2 fans) radiator and find out if a 1600watt power supply could handle the two C1's and two water cooling kits.

Too bad the shop doesn't carry any 280mm aluminum radiators to be able to order it all from the same shop, but eBay has at least one seller that does have them.

I can't wait to see what people do with these.  I'm sure upgraded cooling systems overclocking will be crazy.

I cant see them run either.  They have a pretty good radiator to begin with.   I'm looking forward to see it with some winter air.

To both BITMAINTECH and SYSCOOLING.  I would have already ordered 1 or more of these units if it was not for the limited shipping options.  Both UPS and DHL not only are very slow at clearing customs, but they charge a HUGE fee for it.  If you had the shipping option of regular postal service airmail, then I could receive this in a much more timely fashion, much lower cost and this would in turn be you receiving much more orders.

I echo the above guys sentiments, and what is probably on the minds of many other guys who are already having trouble with the couriers, PLEASE see if you can offer regular Air Mail as a shipping option.


Thanks.

That's DHL before they were DHL they were all I used when I had my PC business i forget the name of the other company before they sold it but it was a lot better then.


I remember now Airborne Express. well any way im looking forward to my first  C1 soon im waiting to see how it works out and see how i can improve the cooling .

Its using one of the free 3 pin fan headers on the board.

When somebody will receive one of these please report on noise level ... I'm interested in the C1's vent noise level at full load (and not the vent's for the cooling radiator, because I already have these...).

Seems to be sold out. Will there be another batch?

Dangit, I just e-mailed them this morning to get that kind of info, but yes I now also see the sold out on the website?

Would be nice to see a stock amount on the website.  I'm not going to put money down unless they are in stock.

I'll let you know.

OK, so I'm still learning all this mining stuff, but I have a question although I think I already know the answer to this,

The Antminers are pure sha256 miners, correct?  They will not do Scrypt mining?

These only do Sha 256.  They have a Antminer L1 shipping in Dec that is Bitmain's first Scrypt miner.

Someone with too much money should get one of these and try it out   :o

http://www.frozencpu.com/products/21254/ex-wat-272/Aquacomputer_Airplex_GIGANT_1680_External_Radiator_-_Aluminum_Fins_33301.html?tl=g30c95s667

It is bad ass, to be sure.  And a steal at only 650 bucks!

Thank you, you gave me an idea ;)

@tripppn

Thanks, that is what I assumed.

so, whats the noise with these watercooled miners?

Depends on what you are using to cool your radiators. If you have good fans, it shouldn't be too loud.

could you give me an order of magnitude plz? im quite interested to just have one of these to show of in my one room appartment .. ^^

Just wondering, is the T1 module on syscooling's site the one used for the C1?
If so and the cooling for the C1 makes it easily overclockable seeing I am able to squeeze 530 GH/s @ 262 HW 0.0003% from an air cooled S3, then if the C1 can perform better, say 1.15 - 1.2 TH/s, then it may be worth it converting my S3's to water cooling (though I may resort to my own contraption using a car radiator instead to service my S3's)

True Dogie a page back said he will let us know if they are doing another batch.

With the stock fans, it will probably be the same as the noise of 2 s3 units - which is pretty reasonable, around the same volume as a desktop pc playing video games. Noticeable but not excessive for a living room

If you swapped some quieter fans, it would be pretty quiet, just a light whisping noise of airflow through the rad

Yeah if you swap out the stock fans [which are the same as S3]s for 6x quieter then it gets really quiet. But that requires $.

batch 2 link according to rigwarz

https://www.bitmaintech.com/productDetail.htm?pid=00020141029135048724z39CYwEQ0684 (https://www.bitmaintech.com/productDetail.htm?pid=00020141029135048724z39CYwEQ0684)

uh got it, thx guys. i guess i'll order as soon as next batch opens. :)

edit: whats with this batch2 link above? who is rigwarz?

OK...Syscooling may not know how to run a website or how to track a package, but amazingly an exceptionally well packaged pair of coolers showed up at my door today.  I haven't opened the package yet, but all appears to be in good order from external appearances and this is just in time for the arrival of my C1s tomorrow.  The DHL tracking site still shows "not found" for the tracking number Syscooling provided and my 11 year old son destroyed the outside labeling, so I can't see what the tracking number actually was.  Also, the Commercial Invoice lists 5Pcs of "Aluminium Radiators" at $2 each, but I guess that's their problem, not mine.  Anyway...I will report on the install tomorrow or over the weekend.

Ok got them going.  Happy I ordered a little extra coolant. After looking i used around 600 cc each of fluid.  I also cut the tubing where I had some left by eyeballing length syscooling used.  Syscooling gives you more then enough tubing.

Hardest thing was one had no response on network.  Took a while but luckily it had a corrupt card in it.  I had a 2nd one so made a image re-flashed the card and was up and running.

Now i finally get to see them up and running :)  Have to say very nice design.  It allows 1TH is very small area compared to most miners.  

My post install advice:

• The starting IP should be 192.168.1.99
• Get a nice screw driver you will be opening and closing case (10 screws per miner) to plug in pump, etc.
• Have a little bowl or something for all the screws it's easy to drop the small screws
• Test it with top of case off, to make sure it's working.  If you have problems taking case on/off adds up.

I will work on uploading a image in-case anyone has same problem I did.  Figuring it was micro sd card that was corrupt was quite a chore, and I was lucky to have a 2nd miner to clone it's micro sd card.[/list]

How much did you use?

I was thinking i used more then I did I appolgize been a long day with the corrupt card.  Just checked for exact amount I filled 2 and used 1200 cc so right around 600 cc each.   Which is less then 1L each.  So your suggestion was great.   I also didn't use all of the tubing, I estimated syscoolings cuts by eye and had some left.

Sold out faster then expected. Almost every bitmain product sell off eventually.

Not known at this point. Low BTC price doesn't help.

The noise level is exactly the same as the S3, if you are familiar with their noise level.  The C1 has the 1 of the same fans as the S3.  It's just 1 fan, instead of 2.  The noise level seems the same for 1, or 2, of those stock high-speed fans.  I'm sure someone will disagree.  ;-)   The single fan on the C1 drowns out the cooling unit fans. (I order the recommended cooling unit.)  

A bit of additional info.  My C1 is using 875 Watts at the wall.  The PSU is a Rosewill Lightning 1300W.  All default settings on the C1.  The clock frequency is 250.

I was mistaken on my fan noise comment.  After a short time, the fan slowed down and it is quieter now.  The fan ran at a higher speed for a little while, beyond the normal startup max speed test.  Anyway, I was wrong about the noise level being the same.  I can measure the db tomorrow, if that's not been done yet.

Thanks for choosing our products,and what you suggest is the thing we are trying to solve all the time.The options we provide now are the best choices so far,but if you have other ways for shipping,you could email us and we appreciate it.

Thanks for choosing our products,and if you have other suggestions please let us know.DHL sometimes have delay problems,you could trust us and the tracking no we provided.Wish you have good experience.

Here is in-case anyone runs into what I did with corrupt SD.  It is a image for the C1, IP is set to 192.168.1.176 static.


Ran out of dropbox space here a a google drive of a zipped version (thanks Dogie for info)

Btw if you zip that .img it will go down to about 50mb rather than 4GB

Why aren't they accepting USD for anything but the S4's?

Thanks for info it made a huge difference a zipped version is uploaded and linked in previous post.  

I like the miners, using winter air to cool.  Working great and easily getting 1T.  I have not pushed it to the top though to see what upper limits are.   I'm happy with 1050 and 1030 off mine. I don't have a DB meter, but it is my most quiet miner, it is operating in 60c ambient temperature though (less at night) and running on a rm1000 (quiet psu).