Topic: Octotank12 with 2 whatsminer 30s+ review. Not ready for full review. - page 2. (Read 1017 times)

I’m looking forward to seeing how this all looks and your feedback once it’s installed. I just wish the cooler could operate in a little warmer temperatures. If it could handle being in 120 degrees then it would be absolutely perfect for operating out here in the desert. I hope these products continue to evolve.

Was emailed on this yesterday maybe we get the cooler soon.

Still waiting on the cooler.

Meanwhile your 2x m30s and 2x m50s are doing well.

This sucks, and by the way, I think the basic version of this tank does not come with a heat exchanger, which means you can't re-use the heat generated by the miners, my understanding of immersion cooling is that there are two types, a single loop, and a dual loop, the tank you bought looks to be using a single loop, the miners are soaked into the liquid, a pump sucks in the liquid from the top of the tank into the radiator /dry cooler, gets cooled down, and sent back to the bottom of the tank.

Using this setup, you have no way to redirect the heat to a place like a swimming pool, but can be used to heat a living room or whatever space that dry coolers blow hot air against.

The second type would be dual loop cooling, this setup uses a heat exchanger, which has 2 inputs and 2 outputs.

1- Input from the cooling liquid.
2- Input from the water source (swimming pool or whatever).
3- Output of the now "cooler" liquid to be sent back to the tank.
4- Output of the now "hotter" water to be sent back to wherever you want (the swimming pool again).

So basically the heat exchanger will take the heat from the liquid cooling and transfer it to the water without these two mixing together, you can probably build your own tank that does this, since you are located in the U.S and that's where most of the good grade cooling liquid is made, the concept is rather simple at least on paper.

-A tank that can hold 2 Whatsminers (can be made of glass or some strong metal).
-50-60L of cooling fluid (probably costs 300-500 for a good grade).
- A small pump.
- A heat exchanger.
- A dry cooler.

Of course, the final shape and those LEDs and fan control come at an extra cost, and they will be some trial and error, so a ready-to-use tank like the one you use has some merit, I would just confirm with them that it comes with a heat exchanger aka "dual Loop" system so that you guys can actually use it to heat the pool.

the two m30s+ set to 3000 watts are pretty much flawless.

And a 1 month delay for the octominer cooler is the new schedule.

So Feb-28 to March 31 window 🪟 is now March 31- Apr 30 window.

May come it time to use for heating buysolars home pool.

I had that worry but a few days of burn in and it has been really good for a few weeks.

That middle hash board is more than a little low, don’t be surprised if you come in and find “SM1 loss balance” one day. you should actually go into “miner API log” and take note of which chip is acting up. This will make the repair easier later on. I’m still here to help you whenever you need.
Regards,
Jay

I missed this. you can try contacting forum members

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

 1) mikeywith     https://bitcointalksearch.org/user/mikeywith-2033515

he got my two

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@



2) kaboomracks    https://bitcointalksearch.org/user/kaboomracks-2396842

I spent money with this seller he has them




both are decent forum guys.

I've received no reply to an email submission. Is there a better way to contact? Do they have an official presence on this forum?

That other website deal was too good to be true then, 2300 for a 142T m50s+

They seem like great devices, as they are smaller than s19 models

Just wish they had an online shop!

no

please note I disabled link


real site is this:

https://whatsminer.com

Nop, it is a fake website, the real one is http://whatsminer.com

Can the real whatsminer website please stand up?

Im looking at joining you in this adventure,  2x whatsminer in the octo tank!

https://microbt-whatsminer.com/product/whatsminer-m50s-plus/

Is this legit site?

That is good news then, you will be limited by the PSU's max limit which I believe is 3800W, so for your two M30s+ you should get anywhere between 110th to 115th without going past 3700W on each, so that be a total of 7400w which is slightly above 50% of the tank, and 220th-230th.

For a medium sized house, with the correct engineering, those 25k BTU hour should keep the house warm in the winter, while generating nearly 500$ monthly, not sure how much folks there spend on heat during the winter, you are going to have to run a lot of maths.

you are correct misread it.


SALE!
NEW PRODUCT
OCTOTANK 12
LIQUID IMMERSION COOLING SYSTEM
🔍


"OCTOTANK 12
$1,399.00 - $1,499.00
Miners Supported 2x MicroBT Whatsminer or 1x Antminer
Input Power 180-277 VAC

Maximum Input Current 60A (MAX COOLING CAPACITY 12KW )

Networking RJ45 Port (POSSIBLE TO UPGRADE TO WIFI)
Security LOCKABLE TOP (SPECIAL BOLT KEY)
Operating Min/Max Temp -30C TO +40C / -22f TO 104f
External Dimensions 40x40x120CM / 15.7 X 15.7 x 47.2IN / 85KG
Additional Features IP54 WEATHERPROOF. SAFE TO USE ALL YEAR ROUND
Internal Tank Dimensions
321 x 244 x 580 mm
12.6 in x 9.6 in x 22.8 in"

please note info  in "..." is from octminer's website


good then this is better than I thought. It will cool 2 m30s+ with ease. Even if I run them at high speed.

Where does it fail when you set these numbers?

Also, looking at the tank you posted it says 12kw cooling capacity, no mention of the 6kw, which means it can safely run two MicroBT even overclocked, unless I am missing something.

I don't mind if I am short of 200th and end up selling a 180th machine burning 5800 watts.  

The key with the unit I am using is it is a 2 whatminers piece. The cooler has the ability to heat in the winter and warm a pool in the summer. My partner "buysolar" has been doing solar setups in New Jersey for 20 years. We may work the angle a few ways.

Also we may do a single whatsminer m50s+ overclocked if they supply a proper psu to do that.

https://www.whatsminer.com/src/views/product_details?id=15&name=WhatsMiner%20M50S+


what matters down the road  is how good the cooler is. It could be a bust.  which is why we got the m30s+ to test it just in case we don't like it.

what I have found interesting is:

'normal' and 3100 watts = good
'normal' and 3050 watts = good
'normal' and 3025 watts = testing now>>>> edit :

 now doing:

unit 1 >>  92.509 th 32.56 watts a th and 3011 total watts
unit 2 >>  92.490 th 32.62 watts a th and 3017 total watts


'normal' and 2950 watts = fail
'normal' and 2900 watts = fail


this is not to complain but may mean the cooler will struggle with 2 m30+ on normal and 6100 watts.

Typical designed just a bit wrong and yet they push 2 whatsminers as a fit with the cooler.
Likely need a quart more liquid and a little bit bigger radiator to be perfect


now on low setting I did 88 and 2875 watts which is 32.67 and 2 of them would be about 5750 watts.

so low setting may be needed for the coolers.

I will post back to see if I can play with settings a bit more.

Maybe with a day of burn in I can set lower than 3025 watts on normal.

Yes, you want to keep the power mode on normal when setting a power limit on the miner, it's almost impossible to bring the miner to an exact figure, so your 3050w limit will usually be slightly less, a few watts here and there, also, the power consumption on the tool isn't 100% accurate, so make sure you use a wattmeter to get the exact correct number.

I would also look for a different tank, 6kw is too much for Antminer and a bit on the low side for 2*Whatsminer, but at the end of the day, the lower you go on these Whatsminer the more efficiency you gain overall.

Also if the project kicks in and you want to sell the package as a 200th miner you would want to get the M50, they range between 25w/th to 28w/th, the lower the more expensive of course.

The M50s 110th 28W would be a good pick, it should do 110th at 3080w default, so if you want it to stay at 2900w (to not go above 5800w for the tank) it will do 103th or a total of 206th for the tank.

Meanwhile, keep in mind that you will remove fans in the tank, the reading on the wattmeter will take the fan readings too, the fans in the pics you posted are running close to full, they consume about 85w each at full speed (7k rpm), so the reading on Whatsminer tool will be a lot more accurate when the miners run in the tank.

Okay this below is 'normal' with a 3050 watt cap

total of 6100 watts

which would be too much for the  cooler if it can do 6000 advertised number.

Keep in mind the low power mode will tune every miner differently, also, inside the tank temps will be a lot lower and thus the tuning might go higher because it does use temp as a measure of how low/high the frequency goes.

Long story short, using the power limit is safer when you really want an exact watt per miner.

I will likely set them to 2800 watts as the cooler is supposed to do 6000 watts max.

update. I set to normal speed and used the whatsminer's tool to lower watts to 3100 or less.  results below:


So I save 300 watts and drop from 96.0 to 93.8.

2 at this setting would likely be to hot for the cooler.


but I do know that setting on low does 88.1 and 2850 watts which would be good for the cooler as 2x2850 = 5700 which is under the coolers 6000 watt spec.