I also recall having problems with customs, then again customs only thought i forgot to add my VAT number as they didn´t think a private person would buy such pricy "server equipment"

After that they first said, "we have to look into the box" but after 2 days somehow came to the conclusion that they didn´t want to look into the box anymore...

@vpn1 look at maximum recommended thermal load: only 1-2 sp10s depending on cabinet

watercooling might work but the cost of a watercooled contact plate that size would be astronomical, then add the cost for radiator etc... not a viable solution

Also, you can actually stack them on top of each other, it works fine when the normal DC temperatures aren´t above 27°C (Cold isle).
The bottom plate heat just gets transferred from unit to unit but it is still expelled trough air movement.

If you need a DC solution, just call up your favourite DC and ask them how much load / cooling they provide per cabinet.
DCs are normally built to dissipate the amount of heat they put in. (But don´t bother with 3KW racks or some similar BS)

Bitpay best exchange rate.

Order via the site and pay with Bitpay, easy as 1-2-3

Are the units stuck in customs because of FC compliance issues or because they are unable to put it into a specific category?

It is bitmine´s fault if they are unable to keep money in cold storage.

Who the hell trusts anyone with their private keys?

There is two ways this can go down:

1 They refund everyone they owe money to, deliver the rest of the units in a timely fashion (before the ppl are able to claim refunds)

2 They get buried in lawsuits, both civil and criminal

Well prices are still considerably less than on cex.io and hosting charges are also lower.

However, we dont have the same number of ppl visiting havelock.

Sales might increase, once we take delivery of the equipment and set it up.

Please build an immersion cooling solution so we can deploy in 1.3MW containers. We just need to raise ~3m in funds for this.

Is anyone in?
/irony on

By the power of my own arrogance i hereby name myself CEO, CFO and every other CXX position out there of "datatank investment inc." and will collect payments on the behalf of the company.

The subsidiary company "1.21 Gigawatts Power inc" will then invest funds in a fusion power reactor, powering our container(s) with incredibly cheap electricity.


Once our hosting site, strategically placed near the fusion power plant, runs out of area to deploy the datatank containers in, we will be able to stack them like a jenga tower.

When the stack height of our containers reaches outer space, we will have additional income from carrying satelites into orbit via Alpacas.

Company owned Alpacas will also provide everyone with Alpaca-wool socks.


/irony off

With a "better" fan you might be able to shave off 15% noise, but the fact still remains that it will still be loud and not suitable for everyone at home.

It is designed for DC deployment. You can deploy it at home if you take certain measures, but not everyone might have a free-standing shed etc. to put them in.

If better longterm hosting deals should become available, that would be great and probably increase sales of these even more.

I am sure, some DCs in WA would be able to host these at a competitive price if you get a few racks.

Well, we all know the drill...

Please connect to eligius.st and post the address for us to verify you indeed own 46TH at all.

Some video of the unit would be nice, also showing screen with hashrate etc.

Some more detail on the chips, process used, package, pcbs etc. would also help to atleast prove that you know what you are doing.

Oh yeah, and please explain what power supply you are using, as i dont know any big power supply, able to go from 400V / 240V to under 1V without costing 5 times what you claim for the whole miner.


A basic lesson in economics, particularly supply/demand would be very profitable for you, if you indeed were able to produce such a miner.

Also, the "Nextreme-3" chip doesn´t exist yet. It was supposed to be built by VMC/AMC but we all know it didn´t go as planned...

When is the latest date you need to buy the hosting package so it gets shipped to your hosting facility, and not the billing address?

Physics dictates the sound of these units.

It is just not possible to get "silent" 40mm fans that also push a great amount of air.

more hash ---> more noise

These units are still the best engineered bitcoin miners out there.

Mine are working well, too.

None of them are below 1400, with typical speed 1450, some a bit higher.

I think it is a stupid move to disallow trading of shares while they IPO the additional ones.

How am i supposed to sell my shares now if i want to?

It is a server grade PSU. Everything but moving a ton of air would be the failure. It could pose significant security risks if the PSU overheated at 35°C room temperature.

Do you know how much it costs if a burning PSU trips the smoke detection in a DC and fire suppression systems are tripped?

Also, it isn´t the loudest part of the unit, atleast not on mine, anyway.

80mm fans are bigger than 1,25U, so they wouldn´t work

Also, the PSU isn´t the loudest part at 90% fan speed.
It is designed for operation above 35°C at full load, so the fans are moving a lot of air, naturally.
However, it is a server grade fan so nobody thinks that sound would be an issue.

Just get some hosting and you will be fine.

Everybody in this thread warned people that the units were loud.

More hashing --> more loudness

Just get them hashing at a DC, you will also get cooling there aswell as proper security.

Plus: When you are at the DC to setup your equipment, you will feel like the coolest kid on the block as you can distinctly hear your miner over all the boring server equipment 

You should definately go for maximum ventilation.

Aim for atleast 150cfm per sp10, ideally blowing onto the intake side.

Then extract air at the same cfm at the outgoing side. As far as i know, growshops offer cheap extractors with massive cfm.

Keep in mind that when you go for "free" air cooling, cfm is all that matters as ΔT*airflow = cooling capacity.

While a solution with portable AC is typically easier to build, the free air cooling solution uses around 30% less electricity.

The following scenario might work:

Spondoolies builds units for immersion-cooled deployment and deploys in allied-control datatank containers.

If units are designed from scratch for immersion cooling, cost for heatsinks etc. is reduced, and a much higher hashrate per volume can be reached.

Customers buy "shares" of the mine, or packages in increments of 1TH or something.

The container gets deployed somewhere with electricity costs of 4 cent/kwh. No additional costs would be needed for cooling, as cooling efficiency is atleast 1.01

Spondoolies can bill cost for upkeep etc. in addition to the already payed cost per TH.

Ah sorry, i am blind.
Thank you for your reply again.

Also, Bitmain Antminer S2 is now 1650 including shipping, and it reportedly does the full 1 th. (Groupbuy)

Also, prices have gone down more than you would have actually mined on most units, so waiting some more might be a good strategy.

With the next difficulty increase at 18% again and BTC still this low... might be better off just buying btc or putting your money somewhere else.