[ANN] Spondoolies-Tech - carrier grade, data center ready mining rigs

[MrTeal]

why the fuck would you make a DC in bangkok! where is 28 degrees Centigrade at 9AM, right now!!! WHY!!!
...

Miners don't particularly mind hot ambient, and because you're not running AC neither do you particularly. Instead of replacing the air with an infinite amount of 20C air, you're replacing it with an infinite amount of 30C air.

I'll drive constantly at 200miles/hour just because my car can do that! I dont give a fuck about road conditions or tires...

better 10cents/kw in a 0C temperature climate than in that location with +30C temperature and 6cents/kw!

Based on what? If you're able to bring enough 30C air in to feed the units and keep them cool, there's no real need for the 0C air. Yes you could run the fans a little slower and save a bit on your cooling costs, but you're talking maybe a percent on of your budget. Nowhere near enough to justify 10c vs 6c.

[1714938458]

1714938458

[e4xit]

I really wanted to order one SP10 unit, but i couldn't find enough information about the PSU. I don't want a fire hazard and i don't know how long will the PSU last before going dead.

Sorry, missed this one.

The PSU we are using was designed for the telecom and communication market by Emerson, one of the most respectable PSU providers in the world. It meets all the required safety certifications and it's MTBF (mean time between failures) is over 50 years.
In addition it supports over-current shutdown and over-heating shutdown, hence there is no fire or any other hazard risks.

Screenshots from the data-sheet:
http://take.ms/R08dn

SyRenity please address the issue of SP30 heat dissipation. How do you plan to dissipate 2500W from that small case? Also i see that you under power it again. For SP10 you have a 1kW PSU and the unit needs 1.3kW and for SP30 you have 2 1200W PSUs, but the unit needs 2500W.

Also what is the inside temperature that SP10 reaches? (chips, components etc)

Answer from the team:

When designing a cooling solution, the most important factor is the heat density, rather then the performance or the total amount of the dissipated heat. The second factor would be the max allowed ASIC’s Tj.

You are right, we are going to maintain the same air flow cooling mechanism for the SP30 as well. We going to use a custom heat sink that was designed and manufactured according to ASIC’s heat dense and Tj with 80mm Fans with a total of ~300 CFM.

The heat sink will be composed of Aluminum K=167 W/m*K 6061 T6 and copper base attached to the ASICs themselves.
The entire design is backed up with a thermal analysis simulations that we are performing as part of the mechanical and electrical design process

So there are no fire risks? Phew 

[mavericklm]

http://www.worldweatheronline.com/Bangkok-weather-averages/Krung-Thep/TH.aspx
Very nice temps!!! compare that with a data centre! Try to run other miners in those temperature!!!

Air cooling has a big minus in the air temperature. If the temperature is too high then aircooling=0, huge amounts of air pushed thru the miner will be worthless.
Tell me more about how you want to cool your miners with 35C!!!!

I like my miners cold, stable, better wattage, overclock-able. slower ageing, with very low risk of malfunctions or fire...

I'm not putting down spondoolies, i believe in them almost as much as i believe in bitcoin. I know their hardware is top of the line and is working in a high ambient temperature.

This is a case of driving a limo with wooden wheels...

[TheMinex]

why the fuck would you make a DC in bangkok! where is 28 degrees Centigrade at 9AM, right now!!! WHY!!!
...

Miners don't particularly mind hot ambient, and because you're not running AC neither do you particularly. Instead of replacing the air with an infinite amount of 20C air, you're replacing it with an infinite amount of 30C air.

I'll drive constantly at 200miles/hour just because my car can do that! I dont give a fuck about road conditions or tires...

better 10cents/kw in a 0C temperature climate than in that location with +30C temperature and 6cents/kw!

Based on what? If you're able to bring enough 30C air in to feed the units and keep them cool, there's no real need for the 0C air. Yes you could run the fans a little slower and save a bit on your cooling costs, but you're talking maybe a percent on of your budget. Nowhere near enough to justify 10c vs 6c.

Teal, you'r forgetting that 30°C air is a lot wetter than 0°C, expecially in some places. You can't cool down 5MW of electronic HW with 30°C air  without think about humidity. 
Also 30A are enough for a bad contact to burn a wire, and a fan that blows air direct only helps fire to catch on. That is why in industial plants (not btc related) A/C , thermography, proper electrical distribution and extinguish systems are used.
If it's true that this farm was using 5MW, the lowvoltage threephase distribution system should have handled about 8000-9000 Amps , no peanuts.

[MrTeal]

why the fuck would you make a DC in bangkok! where is 28 degrees Centigrade at 9AM, right now!!! WHY!!!
...

Miners don't particularly mind hot ambient, and because you're not running AC neither do you particularly. Instead of replacing the air with an infinite amount of 20C air, you're replacing it with an infinite amount of 30C air.

I'll drive constantly at 200miles/hour just because my car can do that! I dont give a fuck about road conditions or tires...

better 10cents/kw in a 0C temperature climate than in that location with +30C temperature and 6cents/kw!

Based on what? If you're able to bring enough 30C air in to feed the units and keep them cool, there's no real need for the 0C air. Yes you could run the fans a little slower and save a bit on your cooling costs, but you're talking maybe a percent on of your budget. Nowhere near enough to justify 10c vs 6c.

Teal, you'r forgetting that 30°C air is a lot wetter than 0°C, expecially in some places. You can't cool down 5MW of electronic HW with 30°C air  without think about humidity. 
Also 30A are enough for a bad contact to burn a wire, and a fan that blows air direct only helps fire to catch on. That is why in industial plants (not btc related) A/C , thermography, proper electrical distribution and extinguish systems are used.
If it's true that this farm was using 5MW, the lowvoltage threephase distribution system should have handled about 8000-9000 Amps , no peanuts.

Absolute humidity will almost always be higher at 30C than 0C, though relative humidity can vary and that is what would cause an issue for condensation. If it's really muggy you might be worried about that, but mining equipment will almost always be hotter than the surrounding air you shouldn't have many condensation issues unless the conditions are extreme.

Not saying you couldn't put them in a place where you could run into issues, but if your gear has a low enough ΔT that it is able to run in a comfortable range with 30C (or even higher) ambient the benefits of the colder climate wouldn't come close to outweighing paying 67% more in electricity costs.

[TheMinex]

Absolute humidity will almost always be higher at 30C than 0C, though relative humidity can vary and that is what would cause an issue for condensation. If it's really muggy you might be worried about that, but mining equipment will almost always be hotter than the surrounding air you shouldn't have many condensation issues unless the conditions are extreme.

Not saying you couldn't put them in a place where you could run into issues, but if your gear has a low enough ΔT that it is able to run in a comfortable range with 30C (or even higher) ambient the benefits of the colder climate wouldn't come close to outweighing paying 67% more in electricity costs.

'Almost' isn't enough if you'r running with no assurance. 30min of power loss and bad conditions could be met. It's very rare example, of course, but I'll not skip this with so many money invested. My cents 

[troy112]

Really sad for their lose, everybody should learn something from this. prevention is better than cure.

[MrTeal]

Absolute humidity will almost always be higher at 30C than 0C, though relative humidity can vary and that is what would cause an issue for condensation. If it's really muggy you might be worried about that, but mining equipment will almost always be hotter than the surrounding air you shouldn't have many condensation issues unless the conditions are extreme.

Not saying you couldn't put them in a place where you could run into issues, but if your gear has a low enough ΔT that it is able to run in a comfortable range with 30C (or even higher) ambient the benefits of the colder climate wouldn't come close to outweighing paying 67% more in electricity costs.

'Almost' isn't enough if you'r running with no assurance. 30min of power loss and bad conditions could be met. It's very rare example, of course, but I'll not skip this with so many money invested. My cents 

That argument is just as valid in a cold climate as a hot one though. If the power goes out and conditions change such that the gear is below the dew point you'll get condensation regardless of whether it's at 30C or 0C.

[RoadStress]

So there are no fire risks? Phew 

Show me one SP10 or SP30/31/35 or SP20 that had sparkles or fire. The units, not the building housing them. We've seen all kinds of proof from Neptune, Titans and BA's miners. None from SP-Tech.

[promojo]

are these sp10's? man what a mess!
I don't suppose any of those could be 'salvaged'          heh can see ebay already..cheap sp10's!

They're SP30s and I'd think most will be salvagable after repair. Some of the cable inlets on the PSUs might need replacing and I'd think that the soot may need cleaning off internally. Other than that, should be good to go in a new location. Probably not.

They're salvaging some of them. The biggest problem are the PSUs and the problematic lead time on those.

Did we find out root cause analysis on this one?  Was it facility related?  PSU related?  bad electrical work?  something fall over?  too much heat?

[mavericklm]

MrTeal I'm sorry you got crap electricity prices!

The 10c was just easy for comparative point! round number and also what many are paying for electricity. It's also a exaggeration to make a point for investing more in safety; something like better safe than sorry!

The actual price was 7c/kw. Lower prices can be found in parts of north america, scandinavia, etc

Nothing found atm and the fire was on 14october...
Probably bad electrical work in a hot environment.

[bitnanigans]

Now, that is a lot of burn.

[promojo]

Really sad for their lose, everybody should learn something from this. prevention is better than cure.

Lesson - use a real data centre.  Something that has proper cooling/cabling/installation/racks/fire suppression.

[greyhawk]

Keep your room cozy and warm in the winter ...

[wpgdeez]

Now, that is a lot of burn.

Burn-in test

[promojo]

Now, that is a lot of burn.

Burn-in test

Proof of burn.

[bitkoyun]

[promojo]

Haha +1 to you sir.  That is funny.

[cowboyminer]

I have to say. That's a funny photo shop. Only sad it is my own cloud mining ;-(.

Anyway for all the stupid talk, it was NO overload on any cables or transformers. We Had 200% margins on the cables, No cheap or quick job. No density or heat problems. All sp30 and other miners where running cool and fine. No fire has started by the miners for sure, or any electrical problem in the setup.

Evap cooling enough. We did not even have to run them on cooling since its was that cool already https://i.imgur.com/swcqUxb.jpg

So if you want to call our setup crap fine, https://i.imgur.com/dmShVnC.jpg

https://i.imgur.com/UcPMi6j.jpg

https://i.imgur.com/9pEiqoW.jpg

[RoadStress]

I have to say. That's a funny photo shop. Only sad it is my own cloud mining ;-(.

Anyway for all the stupid talk, it was NO overload on any cables or transformers. We Had 200% margins on the cables, No cheap or quick job. No density or heat problems. All sp30 and other miners where running cool and fine. No fire has started by the miners for sure, or any electrical problem in the setup.

Beautiful setup from the pictures. Sorry for your loss. Did you manage to find out what exactly started the fire? What about the 2 security guards? What is their version? What were they doing? It seems that there was a very slow response from them since everything got burned down. Were they playing Solitaire?