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https://halongmining.com/blog/2018/04/24/dragonmint-t1-manufacturing-update/


Here's the current hashing boards on the T1, they are adding 5 additional chips and integrating a PSU:

https://i.imgur.com/N2ya4s6.jpg (https://i.imgur.com/N2ya4s6.jpg)

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Moderator's note: This post was edited by frodocooper to correct erroneous quote formatting.

An integrated power supply is a TERRIBLE idea, I hope that they reconsider.

Here's a picture that was shared today:

https://i.imgur.com/zvx9Io2.jpg (https://i.imgur.com/zvx9Io2.jpg)

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Moderator's note: This post was edited by frodocooper to reduce the size of the embedded image.

Every time I have ever set a PSU on top of a miner both run hotter than before, this looks to be no different :/

Wow, that was a fast turn-around from the T1 to the T2. I can't wait to do a review!

They said T2's are going on sale when T1's ship out.

I'm mixed on the integrated PSU, leaning towards liking it. Quicker setup time!

The myrig PSUs are too noisy compared to the T1 if you run it in efficient mode. A good efficient ATX power supply is much quieter and if noise is an issue and you plan to run them in efficient mode, having the PSU incorporated is a disadvantage. On the other hand, most hardware is so loud these days that almost no one is trying to run them in their actual home. The T1 in efficient mode with a quiet PSU can be run in your home or garage over winter (but not in the same room as you.)

I deleted all posts of mine in this thread.

and will try to post this in a different way

below is a new photo /screenshot with alterations in red showing what I think is a short hazard in the new model T2

so to Halong I ask will the terminals be shielded

I will also put the link to imgur

https://i.imgur.com/dj3hgC4.png (https://i.imgur.com/dj3hgC4.png)

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Moderator's note: This post was edited by frodocooper to reduce the size of the embedded image.

Would be better to make it removable just in case the PSU dies. If it is separated, one can just swap the psu. I dont see wats so hard about plugging in a PSU. I had one old psu go down so far and the other one didnt work so well. The miner lives.


Just my 2 cents

I like that they added a few chips.

I am not a big fan of the forced psu.
It looks like there is a short hazard.
It will cost more to ship.
If it is a MyRig Psu  it is 1600 watt max I rather use a delta 2400 watt.

If I can get one I will test it out and see if I can get rig of the short hazard.

Meanwhile I kept the 5x T1's  sent to me. I will be paying for them today.

Hello everyone;  it's promoJo again.... The guy who was suppose to bring you the DragonMint T1 review back in December but couldn't (for good reasons).    

I would now like to present to you a picture of the T2.   This is very exciting for all us miners and the whole community.  I hope you are excited as I am to have one (or a couple hundred).   Cheers.

https://imgur.com/a/g2JWzIJ (https://imgur.com/a/g2JWzIJ) (DragonMint T2 Miner hi-rez image)

So if we go by their track record they will ship these running at 16TH since that is officially 'within spec' like with the T1

Here's more pictures that were shared today:

https://i.imgur.com/dcta2X1.jpg (https://i.imgur.com/dcta2X1.jpg)https://pbs.twimg.com/media/DbqJ1ZtV0AEnZka.jpg (https://pbs.twimg.com/media/DbqJ1ZtV0AEnZka.jpg)

not one of the six I had did 16.0 at 1480 watts.  that is 0.0925

they all did do 14.00 th at 1300 which is  1300/14000 =  0.093 watts a gh

that 0.093 is good.

if these do   1575 watts over 17000 it would be 0.0928

I think the gear won't do this  even with the 5 chips and better software.


My guess is it does  1500 watts at 16000 gh or close to that. which is  spec for the T1.

my issue would be  I don't want 1500 watt miners 1300 watt are better as 4 go to a 30 amp circuit.

I wonder what any of that means. 68 chips doesn't make a lot of sense unless it's a 17x4 running with a full-string voltage around 7V. Maybe by parallel they mean two-phase regulator to handle the current more efficiently? Or two separate strings (17x2) per board, independently tunable?

It would be nice if they get them to do 17th at 93watts a th but it would be hard use on a 1600 watt psu.

I think it would be nice if anyone built a sub-KW miner ever again, since not everyone has 1600W PSUs laying around.

yeah  800 watts would be nice.

But even something in the 1200 to 1300 allows 4 in a 30 amp 240 circuit.

and 1 in  15 amp  120 volt circuit.

Now a lot of miners are 1400 to 1700 watts  which kind of stop a 120 volt psu in its tracks.

 I have owned

Evga 1600 g2
evga 1600 p2
evga 1600 t2

cosair ax1500i

rosewill tokamok 1500 titanium.

every one sags under 12 volts running an s-9   

11.94  to 11.97    are the most common spots they drop to.

that t2 psu seems sketchy though. i thought integrated psu would mean soethin like a server that can be swapped in and out like a server psu can. this is just a psu attached to the top or side of the miner case but we shall see. exposed full metal terminals dont seem safe.

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Moderator's note: This post was edited by frodocooper to remove an unnecessary quote and an off-topic portion.

That'd be nice for beginners. Best bet right now is to detune existing ones, unfortunately these don't offer precise tuning yet.

Full control of operating frequency and core voltage are, my opinion, baseline mandatory features for any miner.

I agree. I hope all the dragon units have this functionality eventually.

I of the major reasons I kept the T1's rathe then send them back  was the 3 speeds allowed with ck's firmware upgrades.

Firmware that lowers hashrate  but does not  lower  watts per gh is meh.

-ck's firmware dropped watts per gh from .105 to .095

in my setup this = $$

and -ck's throttle feature to prevent over heating = $$ for my setup up.

I would like 1 more lower setting if possible.

something that drops me to 1000 watts  and maybe 0.087 watts a gh

I can get the power usage down, but I cannot improve the efficiency any further. In efficient mode the chains are voltage tuned to the lowest stable voltage that produces a good hashrate and is still high enough to keep the chains running reliably. Turning the voltage down any further will only make the chains unreliable I'm afraid which means all I can achieve is lower power usage at the same efficiency.

You're not alone...  :D

Still it may be worth 1 lower setting as an option

Even if  you do the same 0.092 or 0.093
Summer is coming for a lot of miners.
A super low setting could be helpful for a hot space.

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Moderator's note: This post was edited by frodocooper to remove a nested quote.

Actually kind of same type of turn-around that WhatsMiner did with the M3 and M3X miner models (the later one is little upgraded and is equipped with a built-in power supply unit.

Ahhh, looks like it did turn out the way I thought it would! Hopefully I get a batch for these T2s! I'll make sure to dump some S9s before they come out

it's in their shop now -- not in stock though! Quite a few pictures:

https://halongmining.com/shop/dragonmint-t2-miner/

CAD schematic:

https://halongmining.com/wp-content/uploads/2018/04/signal-2018-04-21-175841.jpeg (https://halongmining.com/wp-content/uploads/2018/04/signal-2018-04-21-175841.jpeg)

What was the price for the T2? When I managed to see the update it was already sold out so I am curious as to what the price was.

EDIT - I now see everything accept the T2 off the website so assuming they are updating and that there was never a price/availability on the T2. Suppose we have to sign-up for the waiting list  :-\

Looks like it will be okay enough to get some.

I have been testing  my new arrival an avalon 841.

I may end up with

T1
T2
Avalon 841

and no more s-9's

You can still get away with 4 on a 30amp pdu. Even though your slightly over the recommended it will work. I ran 4 pdu's rated for 30amp at 25amps for months.

Also everyone bitching about the integrated psu... It's not that bad. Okay the psu goes so you get sent a new one ti disassemble and put on it's 6 wires that is all you need. Also say your psu goes out on it you easily run this off a breakout board. I like the integrated psu only because I have had to move my mining setup so many times and I HATE plugging in those clips they kill my hands. I have miners that were server rack mounted with gray matter 7u cases and I had some on racks then I relocated some and constantly moving them to rewire. While with this setup it's just miner next to miner next to miner not psu's with short cables in the way. I think this is a good thing and really if the psu goes you just swap to another just like you would with an s9.

I have ran over 50 antminers even above their operating temps and never had a psu go out. I have seen one go BANG and not turn on for 5 minutes because of their built in safety. (L3+ had a short on a hashboard it killed 2 hp server psu but the bitmain ones just went into protection mode)

Also while I am typing this everyone that uses the breakoutboard remember that if the shit shorts there is a very high likelihood the psu will blow and melt the cable and possibly cause a fire if anything is on the plastic psu cable from a pdu.

ps. This was 50% rambling I am sorry

pps. Where can we buy a T2 or do I have to wait for them to be mass produced?

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Moderator's note: This post was edited by frodocooper to remove unnecessary whitespace and a nested quote.

It just me or does the psu look to be on what is typically the hotter side/hash board?

The T2 at Consensus

Innosilicon Branding?!

https://i.imgur.com/OIqtznF.jpg (https://i.imgur.com/OIqtznF.jpg)

Interesting that the T2 is being advertised under the Innosilicon name (and even the website link on the card in the picture), even though there's no information as far as I can see about the T2 miner on the Innosilicon website- this might mislead potential buyers considering the product listing and specs are on the Halong site and all. Not sure what they're thinking here.

Maybe they have realized they have already royally screwed up the Halong Mining name with the poor quality out of spec machines, missed delivery schedules, and non competitive pricing.

Are you seriously surprised after everything I and few others have mentioned in the discussions.  :D

:D

Rest of 2018 is going to be interesting!

no more T2 @ halong website  ???

And there's still no information whatsoever on the Innosilicon site even after the removal of the T2 on Halong (most recent SHA miner listing on their site was a 28nm miner). Might just be a small delay from them preparing an article, etc about the T2 on Inno's site, but it seems like they're indeed going to switch gears to market this for Innosilicon now. We already know the approximate specs, but it's interesting to see this take so long.

The attached psu look is a bit of give away that Innosilicon was/is driving Halong's T2 design? We'll be waiting and watching but recent firmware form -ck may already make a 1.5 Th/s "increase" on a new unit negligible in the market. Hope to see updates for closer to 20 th/s to personally get me excited.

Send -ck the prototypes to play with please. 

"Screwed up the Halong name"?
Heh heh, Ja, that on top of Halong being a Ghost corporation that from day-1 has been doing a very good job of making sure no one is able to located who owns/runs Halong Mining. In my book they will always be a prime example of how to not run a company and will never get my business or recommendation because of their approach to business.