Topic: Would a C1 survive without water cooling in a -1C cooled room ? (Read 2462 times)

Seems everyone is missing the key point. Question was "would a C1 survive for 5 days in a room with -1C ? without Water cooling and only for Fans ?"

Answer is YES! It will survive even at 25C. It will survive even if both pump and fan fails.

Additional info is that it can work with either air cooling only or water cooling only.

very clear result of simply not enough surface area!

maybe an industrial 1metre diameter fan it will work

Yes, but not with default clock, must be underclocked.
I have one such C1 without watercooling underclocked to 200MHz and working fine 3 months.

For example now outside temperature +6C
fan 3360rpm, chips temp. 55C

Please use a chocolate on top of yourself Banana, it might to make you more useful than suggesting stupid things. If you don't know anything about it, do not suggest please.

C1 has four heatsinks and two water blocks. With thermal paste from Bitmain, of course. It is enough to cool C1 at cold ambient only by air when underclocked to 225MHz. All Antminers have overtemperature control which stops mining at 80C+, and undocumented failure control which shuts down system at temps over 100C. It is not recommended to run any device at high temperatures, but IC chips used by Bitmain has guaranteed working temperature at 125C (with lower efficiency).
 

I really would highly recommend against it. I don't think it is a good idea to risk it if you can bring the water cooling along anyways. Maybe if you hook up a heat sink like someone said above.

No, unless you put in a heatsink and therma paste (please don't use chocolate as therma paste) into the core then only you can cool it with fan.

it's all about ventilation

or

connect it straight to water mains! careful with the pressure

or

other idea might be doing a siphon system with a big bucket, water jug, 55gallon drum

The real question is why are you trying to torture your C1?

If the room is -1 any temperature, just stick a bucket of coolant next to it with a submersible pump and stick both the intake and the out in the bucket of coolant the cold room will be enough to cool the coolant so the C1 will be happy.

Don't torture your miners, love them.

Water required a lot of energy to heat up.

I actually think its possible. If you fill the block with water and close it again it should be able to remove enough heat with very cold ambient air. You might get issues with leaks due to the pressure and plastic caps though.

Have you ever seen C1? I don't think so. It has not only water block, but also small heatsinks on each blade. It is sufficient when underclocked and even better also undervolted. In case of total failure of fan and pump, after it reaches 100C (or a bit more) it put itself into halt mode with low power consumtion. Bitmain did very good job here.

I'm not sure how you will use 4 fans if not using water.   But without water it get's to hot and will turn off. I can say I had a cold ambient temp (was months ago in winter) when my syscooling pumps died.  It ran and turned off.   

If you want aircooled your better off with a different miner.

there is so much surface area on the waterblocks that you might need 10000cfm of air at 0c to keep it running

C1 has internal heatsinks and with temp around zero they can work at 225Mhz without liquid cooling, but temperatures can reach 70C on blades which I do not recommend.

why "only 4 fans"? the C1 has a singluar fan. the other 3 are in the cooling loop and will have zero effect if you dont circulate a coolant.
unless you planned to circulate air - in which case your pump will last about 5 minutes.

tldr; dont buy something designed for liquid cooling and think it will be fine without liquid or cooling.

I highly doubt it water is amazing at absorbing heat.

You can always modified by putting in some heat sink, aluminum or copper wire and glue it to the center of the chip then fan would helps. But I recommend you not to do it unless you really know what you are doing.

Short answer: No

Real tricky question...

You should specify, either celcius or farenheit, this is a 32 degree difference.

Think that -1 farenheit is about -30 celcius.

In both cases, it's not a good idea for a C1.

If the room could have a steady -1 (Celcius) then you would only need a small fan, considering -1 consistent.

Considering the miner is also alone, -1 celcius is not that cold.

I have an S4 in a open window bathroom in the middle of the winter the S4 got down to 33 celcius last night...

If it's -1 Farenheit then the miner is more at risk of actually freezing and lot worst problems.

Electronics naturally give off heat, the absence of cooling system in such cold weather will create a lot of condensation.

Cold environment turns to "computer sweat", then to sweat beads, real quick.

Ever seen rust on mobo's?  That's computer sweat settling in.

Water and electricity don't match; you'd need a dehumidifier running 24/7 but then you lose your cold temp since a dehu is a small heater.

Once this computer sweat is materialized and melted by the chip heat, turns to water.

This makes it at high risk of fire because water can cause serious short circuits.

Either way, you'd be better off with S3's since the C1 is designed to be liquid cooled, not cold temperature cooled.

What you want to add technically fan cooling to a liquid cooled system, both are 1000000% different built from one another.

Electronics are made to be ran hot to a certain degree but frost kills them.

Makes absolutely no sense to buy an already cool miner, with a liquid cooling system and put them in sub zero temperatures.

Overkilling on cold will break your fragile electronic components; the key to a cool mine is ventilation, not cooling.

Hope this helps.

PS: The C1 is not a beginner's machine, it requires a great deal of attention and know how to set up properly.  Sounds like you'd be better off with S4's since those machines would benefit from -1 temps at any rate.

hello, would a C1 survive for 5 days in a room with -1C ? without Water cooling and only 4 Fans ?