Bitcoin Forum

This thread is a review of Halong Mining's DragonMint T1, their first offering in the SHA256 market. There will be detailed pictures of the GUI and a hardware teardown.

https://i.imgur.com/y31Zc72.jpg (https://i.imgur.com/y31Zc72.jpg)

The  DragonMint T1 "Terminator" is Halong's first SHA-256 offering, utilizing AsicBoost with specifications advertised at 16TH, 1480W @ 240/25c, with an ±8% variation.

Halong Mining was first publicly advertised around November of 2017, with many prominent figures in the Bitcoin community endorsing the legitimacy of the project. Preorders were offered at $1350 for the miner. Myrig is advertised as Halong's distribution arm globally. The official websites, along with the twitter handles are listed below:

https://Halongmining.com (https://Halongmining.com), https://twitter.com/halongmining (https://twitter.com/halongmining)
https://Myrig.com (https://Myrig.com), https://twitter.com/MyRig_com (https://twitter.com/MyRig_com)

Halong Mining's representative, Scott O, was prominent on the Halong thread and that's when he advertised that he lived near Milwaukee. Being a resident here locally, I took Scott up on his open offer to review the unit in person, which I did in early January. I was delighted with what I saw, and became a customer not too long afterwards. Last month I offered to review a unit, which was provided in addition to the PSU, which I received yesterday.

Without further ado, the unboxing!

https://i.imgur.com/EHd2Ng8.jpg (https://i.imgur.com/EHd2Ng8.jpg) https://i.imgur.com/jYnfVBH.jpg (https://i.imgur.com/jYnfVBH.jpg) https://i.imgur.com/fM475AZ.jpg (https://i.imgur.com/fM475AZ.jpg) https://i.imgur.com/188vcU1.jpg (https://i.imgur.com/188vcU1.jpg) https://i.imgur.com/FxwUQ4b.jpg (https://i.imgur.com/FxwUQ4b.jpg) https://i.imgur.com/ZfWQnTg.jpg (https://i.imgur.com/ZfWQnTg.jpg) https://i.imgur.com/nYHrQdo.jpg (https://i.imgur.com/nYHrQdo.jpg) https://i.imgur.com/r5261in.jpg (https://i.imgur.com/r5261in.jpg) https://i.imgur.com/y31Zc72.jpg (https://i.imgur.com/y31Zc72.jpg)

As we can see, the unit has the standard "tube" form factor, a common form factor. The PSU has 10 PCI connectors, which plug into the 3 ASIC chains (3 each), and one in the control board.

More close ups, and plugging in the PSU!

https://i.imgur.com/LEMy22M.jpg (https://i.imgur.com/LEMy22M.jpg) https://i.imgur.com/b65QKfz.jpg (https://i.imgur.com/b65QKfz.jpg) https://i.imgur.com/SGM95Nj.jpg (https://i.imgur.com/SGM95Nj.jpg)

https://i.imgur.com/cpPih6D.jpg (https://i.imgur.com/cpPih6D.jpg) https://i.imgur.com/x14TPYt.jpg (https://i.imgur.com/x14TPYt.jpg) https://i.imgur.com/w9CUfoV.jpg (https://i.imgur.com/w9CUfoV.jpg)  https://i.imgur.com/jl9O5fe.jpg (https://i.imgur.com/jl9O5fe.jpg) https://i.imgur.com/Tzbxkuu.jpg (https://i.imgur.com/Tzbxkuu.jpg) https://i.imgur.com/haXm4fG.jpg (https://i.imgur.com/haXm4fG.jpg)

After plugging it into my setup, it didn't take long for it to show up on my network. I navigated to the page. The default login username is "admin", and the password is "dragonadmin"

https://i.imgur.com/8rnryeG.jpg (https://i.imgur.com/8rnryeG.jpg)

The default pool settings! As with most miners, the hashrate spikes up when it first goes online, it equalized as time went on.

https://i.imgur.com/IQL6nol.jpg (https://i.imgur.com/IQL6nol.jpg)

I adjusted the pool settings and pointed them to slush. Here's the GUI hashrate at two minutes, 10 minutes, 30 minutes, and finally at 75 minutes!

https://i.imgur.com/SPqORjy.jpg (https://i.imgur.com/SPqORjy.jpg) https://i.imgur.com/evce3tk.jpg (https://i.imgur.com/evce3tk.jpg) https://i.imgur.com/3XwY0A3.jpg (https://i.imgur.com/3XwY0A3.jpg) https://i.imgur.com/HEWEvZD.jpg (https://i.imgur.com/HEWEvZD.jpg)

Poolside stats! Averaged at 16.07 TH in a bit over an hour.

https://i.imgur.com/AXMhaP7.jpg (https://i.imgur.com/AXMhaP7.jpg)

Amp pull was fluctuating between 6.5 and 6.6 amps, which reflected consumption between 1560 and 1584 watts. The ambient heat in the room was hotter than usual, close to 30c/86f intake (thanks B29 miners!). I used a Fluke 323 Meter to measure the precise pull.

Here's the rest of the GUI!

https://i.imgur.com/EXD9SI3.jpg (https://i.imgur.com/EXD9SI3.jpg) https://i.imgur.com/2byniFZ.jpg (https://i.imgur.com/2byniFZ.jpg) https://i.imgur.com/REzRktV.jpg (https://i.imgur.com/REzRktV.jpg)  https://i.imgur.com/dxXnmcs.jpg (https://i.imgur.com/dxXnmcs.jpg) https://i.imgur.com/blTBH8E.jpg (https://i.imgur.com/blTBH8E.jpg) https://i.imgur.com/OutDk2n.jpg (https://i.imgur.com/OutDk2n.jpg) https://i.imgur.com/QWK7Sp1.jpg (https://i.imgur.com/QWK7Sp1.jpg)

GUI updates (existing and upcoming!) - including a demonstration of the color scheme change!
https://i.gyazo.com/711990fe2ae65329fd7042a05d4869b0.gif (https://i.gyazo.com/711990fe2ae65329fd7042a05d4869b0.gif) https://i.imgur.com/3nZwyia.jpg (https://i.imgur.com/3nZwyia.jpg) https://i.imgur.com/t69OAgA.jpg (https://i.imgur.com/t69OAgA.jpg)
https://i.imgur.com/IalK0cJ.jpg (https://i.imgur.com/IalK0cJ.jpg) https://i.imgur.com/ZyutHRe.jpg (https://i.imgur.com/ZyutHRe.jpg)
https://i.imgur.com/yITJoqJ.jpg (https://i.imgur.com/yITJoqJ.jpg) https://i.imgur.com/SWmtlql.jpg (https://i.imgur.com/SWmtlql.jpg) https://i.imgur.com/FbREJDF.jpg (https://i.imgur.com/FbREJDF.jpg) https://i.imgur.com/LiV4T3k.jpg (https://i.imgur.com/LiV4T3k.jpg)



Onwards to the tear down! Off with the warranty seals.

https://i.imgur.com/g1IEB43.jpg (https://i.imgur.com/g1IEB43.jpg) https://i.imgur.com/FVYS31G.jpg (https://i.imgur.com/FVYS31G.jpg) https://i.imgur.com/IweVBji.jpg (https://i.imgur.com/IweVBji.jpg) https://i.imgur.com/HlvEDq3.jpg (https://i.imgur.com/HlvEDq3.jpg) https://i.imgur.com/IAbq6C7.jpg (https://i.imgur.com/IAbq6C7.jpg) https://i.imgur.com/yKSqQz2.jpg (https://i.imgur.com/yKSqQz2.jpg) https://i.imgur.com/lq3rjXY.jpg (https://i.imgur.com/lq3rjXY.jpg) https://i.imgur.com/UELQpe8.jpg (https://i.imgur.com/UELQpe8.jpg) https://i.imgur.com/lCnKus3.jpg (https://i.imgur.com/lCnKus3.jpg) https://i.imgur.com/cHqI4Ki.jpg (https://i.imgur.com/cHqI4Ki.jpg) https://i.imgur.com/PzNMlR1.jpg (https://i.imgur.com/PzNMlR1.jpg) https://i.imgur.com/11rZ6sQ.jpg (https://i.imgur.com/11rZ6sQ.jpg) https://i.imgur.com/bhlShoO.jpg (https://i.imgur.com/bhlShoO.jpg) https://i.imgur.com/ebMCsMz.jpg (https://i.imgur.com/ebMCsMz.jpg) https://i.imgur.com/QZlRFr6.jpg (https://i.imgur.com/QZlRFr6.jpg) https://i.imgur.com/N2ya4s6.jpg (https://i.imgur.com/N2ya4s6.jpg) https://i.imgur.com/tXoS3Hz.jpg (https://i.imgur.com/tXoS3Hz.jpg) https://i.imgur.com/JNDMFsU.jpg (https://i.imgur.com/JNDMFsU.jpg) https://i.imgur.com/1OS4udt.jpg (https://i.imgur.com/1OS4udt.jpg) https://i.imgur.com/KA7u9GG.jpg (https://i.imgur.com/KA7u9GG.jpg) https://i.imgur.com/D22JGX4.jpg (https://i.imgur.com/D22JGX4.jpg) https://i.imgur.com/BPdkMvG.jpg (https://i.imgur.com/BPdkMvG.jpg) https://i.imgur.com/cKp7WZo.jpg (https://i.imgur.com/cKp7WZo.jpg)

Halong has an official setup video here:
https://www.youtube.com/watch?v=TQOU1PLKerk (https://www.youtube.com/watch?v=TQOU1PLKerk)

PDF version:
https://halongmining.com/wp-content/uploads/2018/04/DragonMint-Setup-Instructions.pdf (https://halongmining.com/wp-content/uploads/2018/04/DragonMint-Setup-Instructions.pdf)

You'll need to use an active version rolling pool (AsicBoost) with this miner, such as CK or Slush pools.

There currently are no firmware updates published on the website, however, Halong's Telegram (https://t.me/dragonmint (https://t.me/dragonmint))
published one for the T1 here (updated to Beta version - 041518) -
https://download.halongmining.com/testing/t1_20180415_075807.swu (https://download.halongmining.com/testing/t1_20180415_075807.swu)

I uploaded all the pictures here to imgur albums (some bonus ones too that are not posted here!). First one is the GUI, the second is the hardware. Third one is the new GUI changes.
Stock GUI (https://imgur.com/a/iAFSZ)
Hardware Teardown (https://imgur.com/a/0LSuM)
New GUI changes (https://imgur.com/a/W9cha)

To conclude, I'm impressed at Halong's first generation DragonMint T1 "Terminator". It's great to see more competition in the field, and even more impressive that this is Halong's first public run. I'm eager to see what Halong will do next.

A special thanks goes out to Scott, Drak, Yoshi, and the rest of the team at Halong for providing me the unit to review. I look forward to seeing T2, T3, T4 and beyond! Maybe an "Enforcer?" :)

Stay tuned to the official twitter channels, telegram, and the website for more information for future releases from Halong!

Thanks for reading into my review of the DragonMint T1! It's my first review here on the forum. Please feel free to post any questions/comments below :)

Modified 5/19/18

What's the behavior if you point it to a pool that doesn't support version rolling? Does it show an error and goto the backup pool?

Great work. Nice teardown. Thanks for the post. Loving my Dragons!

It's nice to have a good look at this machine, thank you.  :)

I've waited ever since from January for this to happen and now it finally has.

Great question! Shows up as dead, and tries to find the next pool.

Also, I didn't specifically show off the dark accent option of the GUI! I made a clip of me changing the that around and you can see the pools. Pools 1 and 2 are the ones that don't support ASICBoost, where the third is compatible. This is the interface after applying the firmware - you can see some GUI changes! A welcome addition. I would really like tuning capabilities in a future update! :)

https://i.gyazo.com/711990fe2ae65329fd7042a05d4869b0.mp4



Thank you! And thanks for your prior reviews as well - I looked at one of your prior reviews for formatting ideas :)

Good review. Pls update us after few weeks how’s the performance ?
Also QUESTION: Since you opened the Miner , did you see SAMSUNG on any off the chips ? Curious to find out what the manufacturer or manufacturing process 10nm or 7nm??

Looks like there are heat sinks on both sides, you would have to pry them off of whatever adhesive they used.  I would hate to break a new toy.

Will update after a bit for sure!

I did try to pull off the heatsinks from both sides, didn't budge with gentle pressure. It's got some good adhesive, and I don't want to break the toy just yet! :)

It would be interesting if each board can accommodate 10 more chips. You'll note one side is fully populated with heatsinks, one is missing 10 - perhaps airflow is sufficient enough. If so, on the 3 chain ASIC setup they have, that would mean an increase from 138 total chips to 168, nearly a 22% increase.

I'd imagine this would create way more strain too on the power pull. 22% on top of even the 1584 I reported puts it at around 1930 watts. It also brings the 16TH spec to 19.5TH!

We're going to need some bigger power supplies :)

Now *that* is a review. Non-political, entirely on-point and shows that you studied Hagg's and other members reviews to see how to do them properly. Very well done and worthy of some Merit.

WTF?  it's an S9 for fck sake...exact clone..with overt ASIC boost....
Big fck deal..rip off

Slightly more efficient than proven S9.

Right looks like totally copy of S9, they need to develop something new not resell with same ASCI with little bit more comsumption and Hash rate...

It is not an S9,
that is just a silly statement that everybody with no technical
knowledge says.

The design is close to what Innosilicon has done with its current gen. miners, as I have stated many times earlier..

  It looks like an S9 but remember that you can find all the design files for an S9 in shenzhen if you know where to look.

  And you dont even need the design files to reverse engineer  it.  you just need cash and connections

THanks for the breakdown, very well made post !  Who cares if it looks the same.  BTC ASIC design is no secret anymore.  Bitmain is probably plotting to destroy the market or extract as much from it before other competitors like Halong eat up its market share, and more importantly, its hashrate quasi-monopoly.  No supply monopoly, no coin control. 

There is a huge inductor on the PCB so it looks like
there is a DC/DC converter on board. Can you read
the chip number of the chips that are directly under
this inductor on the other side of the PCB?

all of mine are about .105 watts per 1gh at the wall.

1 has a dropped board


http://ckpool.org/users/16yLHLoeyuCLPMXkVpC3gyrRYvwRGwjKJr

first unit old firmware on this one look at 1 hr rate of 15.1t

workername": "16yLHLoeyuCLPMXkVpC3gyrRYvwRGwjKJr",
   "hashrate1m": "19.8T",
   "hashrate5m": "16.8T",
   "hashrate1hr": "15.1T",
   "hashrate1d": "142T",
   "hashrate7d": "34.6T",
   "lastshare": 1523633408,
   "shares": 5329198977,
   "bestshare": 65201213603.0,
   "lns": 5307498287.915012,
   "luck": 1.01,
   "herp": 5351461064.377117

second unit old firmware look at 1 hr rate of 15.0t
"workername": "16yLHLoeyuCLPMXkVpC3gyrRYvwRGwjKJr.1",
   "hashrate1m": "11.7T",
   "hashrate5m": "13.7T",
   "hashrate1hr": "15T",
   "hashrate1d": "9.66T",
   "hashrate7d": "2.05T",
   "lastshare": 1523633409,
   "shares": 311079480,
   "bestshare": 226462495.0,
   "lns": 310052756.1595064,
   "luck": 1.0,
   "herp": 310046022.2003531

third unit old firmware look at 1 hr rate of 10.6t this is the one with dropped board.

 "workername": "16yLHLoeyuCLPMXkVpC3gyrRYvwRGwjKJr.3",
   "hashrate1m": "12.4T",
   "hashrate5m": "11.7T",
   "hashrate1hr": "10.6T",
   "hashrate1d": "6.56T",
   "hashrate7d": "1.39T",
   "lastshare": 1523633409,
   "shares": 210180304,
   "bestshare": 196625949.0,
   "lns": 209494784.5212819,
   "luck": 1.0,
   "herp": 208768486.6223349


fourth unit old firmware look at 1 hr rate of 15.2t
"workername": "16yLHLoeyuCLPMXkVpC3gyrRYvwRGwjKJr.4",
   "hashrate1m": "16T",
   "hashrate5m": "16T",
   "hashrate1hr": "15.2T",
   "hashrate1d": "9.74T",
   "hashrate7d": "2.09T",
   "lastshare": 1523633403,
   "shares": 317464726,
   "bestshare": 1129180623.0,
   "lns": 316388009.930127,
   "luck": 1.01,
   "herp": 318588468.9164163



fifth unit new firmware look at no number yet note this is the one from a forum member.


"workername": "16yLHLoeyuCLPMXkVpC3gyrRYvwRGwjKJr.2",
   "hashrate1m": "17.7T",
   "hashrate5m": "14.3T",
   "hashrate1hr": "2.43T",
   "hashrate1d": "2.41T",
   "hashrate7d": "583G",
   "lastshare": 1523633398,
   "shares": 89727984,
   "bestshare": 128850564.0,
   "lns": 89362162.95710222,
   "luck": 0.99,
   "herp": 88289805.74712613
  },
sixth unit new firmware look at no number yet this is fro myrig/yoshi

"workername": "16yLHLoeyuCLPMXkVpC3gyrRYvwRGwjKJr.6",
   "hashrate1m": "15.5T",
   "hashrate5m": "15.4T",
   "hashrate1hr": "5.34T",
   "hashrate1d": "495G",
   "hashrate7d": "95.3G",
   "lastshare": 1523633410,
   "shares": 14209748,
   "bestshare": 11305225.0,
   "lns": 14171517.17823051,
   "luck": 1.05,
   "herp": 14845056.71371713
  }

I've never seen a teardown of a Bitcoin miner before and was amazed to notice the sheer amounts of Heatsinks on the PCB. It would've been nice if all the cables came braided or with some outer protection for the PSU wires. The 14AWG power cable looks pretty good. I'm pleased to notice the front end as well which looks fairly simple to configure and setup the connection to the pools. How many years of warranty does Halong provide for these units? Also is there a possibility to have a look at the ASIC chips and to verify if it was producted by Samsung?

Never looked at the reviews of the s7 or s9 despite them being several years old now??
The t1 has same layout and lazy/brain-dead heatsink design that makes for them being LOUD due to all of the turbulence created by so many leading/trailing edges on that mass of individual sinks.

ref the Canaan Avalon repair guide (http://) for example of correct thermal design.

That's 6.25% less than S9 on APW3++ is about .112 watts per 1gh at the wall, better efficiency indeed.

This isn't 10nm is it?  I thought it was 16nm

Look, if you assume a 10nm chip designed as well as the S9 chips, you should be getting about 20TH @ 1400w. 

If version rolling ASIC boost adds another 20%, you should be seeing ~24th at that power. 

My speculation is that this is a 16nm clone of the S9 but with the ASIC boost counteracting a worse chip design to bring a *very* slight increase in efficiency.

As much as people hate Bitmain, they do seem to have the best chip designs.

Yoshi Goto (MyRig) has mentioned that it is 10nm chip and that the foundry is Samsung.

I'll tear it down again soon and add a few more detailed pictures :) If anyone wants anymore details, let me know here! I'll update the OP with some additional details later.


6 months from the point of shipment - more information on the terms of sale page here (https://halongmining.com/terms-of-sale/)

Yoshi did confirm it was Samsung and 10nm! More details this tweet (https://mobile.twitter.com/MyRig_com/status/983872076271337472)

Halong is also the only miner manufacturer I've seen take this many payments options. In addition to the standard Wires/BTC options, they take BCH, LTC, ETH, XMR, DCR, USDT! Great to see a manufacturer accept the currency they sell miners on. A good thing! :)

Based on what theory?
They are Samsung 10nm chips.

These ever smaller nodes are geared for low-power applications -- NOT high power ones like mining. The overall power involved raise die temps far beyond what the Foundries processes are designed to allow for. As a result the only way to make the miners stable is to sandbag the operating parameters and that means a lot of *possible* efficiency gains go right out the window. Props for mining chip makers trying to push the envelope but as usual the Real World pushes back - hard.

The Ebang 10nm miner is another example of designs gone wrong...

As for theoretical gains AB may give -- so far not as-advertised...

Measure the DC voltage (if any) between the individual heat-sinks; while operating, but open, with additional external desktop fan providing additional cooling.

Hi,

Does the dragonmint T1 new firmware offer any improvements in hashing speed, or was it to update a different issue?

Thanks!

It  gives better graphics  

maybe a little better power draw.
maybe a little better hash.


say  1650 watts at k-watt meter
say  15540 gh


vs  
1679 watts
15300 gh


this particular unit  is the one I tested  on old firmware with 3 psu's

I need to  check  power again

i am now at

1640 watts
15540 hash

0.1055 watts a gh

 

Updated the OP with a close up of the Zynq chip there - second to last picture there on the teardown section. Let me know if any of you want any other closeups!


I'll try to accommodate this. Unit wasn't friendly with me when I had the fans disconnected or even connected, will try a workaround.


Good question! I actually lost hashrate with the new firmware. It went from slightly above to below spec with the update. My recommendation at this point is if you have a unit that is hashing around spec, don't touch it with any firmware updates just yet. Halong indicated they're working on firmware updates to alleviate this issue. The GUI had welcome additions, such as individual chain ASIC status charts and a firmware checker, along with autotune capabilities. I'll throw those up here in the OP shortly.

Thanks in advance. If you can't do this with the unit open then just measure the voltages on those heatsinks that can be reached through the case openings with the case closed and just the fans temporarily moved aside.

You can probe just a few random heat sinks while
all boards are normally mounted in the frame. If it
is anything else but 0V, we can run some calculations.

Didn't get any DC readings off the first row of heatsinks. Will try to play around with it more after I play with the new beta firmware!

https://download.halongmining.com/testing/t1_20180415_075807.swu

Had some nice high numbers on the wind up minute of hashing!

https://i.imgur.com/iIXHg37.jpg

Pointed my T1 to ck's pool and it's currently running tuning on performance mode. Follow the T1's progress here:

http://ckpool.org/users/bc1qw0el3xg4zjuukjtmq9d8u9wr6yn57ts896k83u

---

Moderator's note: This post was edited by frodocooper to remove inline image tags.

http://ckpool.org/users/1JdC6Xg3ajT3rge3FgPNSYYFpmf53Vbtje

I set mine to balanced   and I am waiting for results.

---

Moderator's note: This post was edited by frodocooper to remove an unnecessary quote.

Good call! We'll be able to compare after a bit. I'm off to lunch now, will check how it's been when I am back, including what the power draw is. GUI 50 minutes in shows it averaging around 16-16.25 at least, poolside 1h appears to be catching up to that figure. Promising results so far.

to make it clear I named the worker over


http://ckpool.org/users/1JdC6Xg3ajT3rge3FgPNSYYFpmf53Vbtje


so give it an hour to settle in for hash rate

power on k-watt is

1646 watts



"workername": "1JdC6Xg3ajT3rge3FgPNSYYFpmf53Vbtje.firm415",
   "hashrate1m": "9.43T",
   "hashrate5m": "4.05T",
   "hashrate1hr": "416G",
   "hashrate1d": "17.7G",
   "hashrate7d": "2.53G",
   "lastshare": 1523808733,
   "shares": 359619,
   "bestshare": 861686.0,
   "lns": 359619.1,
   "luck": 1.01,
   "herp": 361876.5063849979
  }
 ]
}

After about 3.5 hours of uptime on performance mode, the pool hashrate is 16.4-16.5T at the hourly indicator. Looks to be fluctuating between those numbers. GUI shows similar readings. Looks like my chain #1 is the performer, chain 2 has 22x the HW errors, and chain 3 has 11x. Had the other two chains performed like chain 1, it would be closer to 17TH!

Amp pull is between 6.8-6.9, that's about 1632-1656 watts.

https://i.imgur.com/3nZwyia.jpg
https://i.imgur.com/t69OAgA.jpg
https://i.imgur.com/IalK0cJ.jpg

With my preliminary testing, I highly recommend people upgrade to the firmware I've updated in the OP, I'll be putting these screenshots up there too.

I'll continue to test the other settings. Excited with this new firmware!

---

Moderator's note: This post was edited by frodocooper to remove inline image tags.

I have had some trouble  getting it working.

Note to self stop  using Apple safari >:(

Works fine with Apple - Chrome- Yosemite.

I am tuning low power efficient  setting with this miner

http://ckpool.org/users/1JdC6Xg3ajT3rge3FgPNSYYFpmf53Vbtje

looks like power dropped at least 200 watts  to 1400

still waiting on true hash rates  but 1400 watts x 4 = 5600 watts which means it will be able to allow 4 units on a 30 amp pdu.

It would be nice to see it do 14250gh at 1400 watts

https://i.imgur.com/iDwS7Fr.png

https://i.imgur.com/UYiNYlf.png

https://i.imgur.com/1GMfVCI.png

https://i.imgur.com/RUWl5xN.png

---

Moderator's note: This post was edited by frodocooper to remove inline image tags.

I've always been a chrome man myself :)

I just shifted my unit to efficiency too. It's autotuning, and I'll check back in the evening with results. Same pool target as my above test for anyone that wanted to track it live.

That's interesting, since you've mentioned about the S9. I went ahead and found HagssFIN's post on the guide / teardown but the PCB there wasn't visible since I guess the user wanted to retain the warranty seals. I went ahead and look it up on youtube and was amazed to see (https://youtu.be/fCgQ7UJzqxQ?t=10m59s) that it looks exactly similar to the Halong Mining DragonMint T1, including the outer casing.

Note: I tried googling the Canaan Avalong repair guide since the hyperlink you've provided is incomplete. I came up with https://bitcointalk.org/index.php?topic=3191702.0 and the technical setup page over here - https://canaan.io/faqs/avalonminer-721/page/2/ (for the Avalon 741 and 721). What's interesting was as compared to the Halong Mining dragonmint T1, the Avalon 841 has one continuous heatsink without many tiny ones attached to the PCB. Also, the 16nm ASIC chips right beneath them https://imgur.com/cYXplGP are clearly visible. Looks like an interesting design difference between the two.

Yeah  safari  is dying  fuck apple.

I have to stop using it and move over about 100 passwords to chrome.


This software  will be nice if I settle in with easy  watts for pdu's  1400 watts  or lower works really well


@xdrpx

The  T1 board uses the exact same heatsinks as the s-9.

The board is a bit different in layout.



the efficient setting  lowers fans to 60%  in an 85 f garage

noise becomes okay.

still tuning,but  this firmware looks like a winner for me on low hash setting.


It rocks at  efficiency setting

13.85 -13.90
1325 watts

you tube link

https://www.youtube.com/watch?v=K_ksMluPUZI&t

Efficient mode settings I had fluctuating between 14.2-14.3TH, and drawing 5.3-5.4 amps -- 1272-1296 watts over the course of over a day.

That's between 88.95W/TH and 91.27W/TH, with a 90.11W/TH median at least on this boot and the beta firmware provided.

https://i.imgur.com/XNN6RJO.jpg
https://i.imgur.com/0IXCFvL.jpg

I'm pretty eager to see what type of specs this pushes out as the firmware is fine tuned.

The title of this thread needs to be changed from a "SHA 256 miner" to "Bitcoin miner" because it cannot do a single other sha 256 coin....

This is false advertising, just like Halong did.

I've changed the title from "SHA 256" to "Bitcoin" Miner, as this forum is primarily about Bitcoin and I haven't heard much compatibility wise with regards to AsicBoost for other coins.

Thanks for your feedback!

It is merged mining NMC on Bitminter. It isn't a question of compatibility with coins but whether mining pools choose to add a few lines of code to support it.

No, not that simple: It is a matter of the pool operators first having access to a miner to test the changes on their pool using Testnet .We are talking FINANCIAL software after all and all pools have their own tweaked hardware/software setups. Only a fool would make ANY changes without first testing the changes before taking it live.

Halong of course has done NOTHING to aid that process so the pool operators need users to lend the miners to them. Once the users finally get their miners delivered that is...

I helped bitminter get the pool working with btc and nmc.

I even earned as we hit 1 block of nmc and btc.

I offered to help any pool with loan of a t1.

Only bitminter asked for me to point my machine to them.

We now have f2pool, ckpool , solo ckpool,slush,bitminter, Kano soon.

The reference implementations for version rolling support are in the master ckpool code and slush's stratum pool code, so anyone running off those gets immediate support. However, if they're using forked versions or do not trust our code they will have to merge (or rewrite it) and verify it themselves. It is actually not a big change and easily emulated without actually using a T1 miner. However, given that about half the pools out there are owned by bitmain or a subsidiary of bitmain in disguise, can you not see a conflict of interest for them to provide asicboost support to their competitor until they decide to implement support for it in their own hardware?

I think its not long now til they actually support it. Slush is gaining massive momentum

Yeah  I mentioned this somewhere else.

I am happy that f2pool  has  added it so the list is longer and some  large pools  as both f2pool and slush are big.

the 2 largest pools are bitmain based they will not add it.

but maybe    viabtc.com  would add it.  or maybe BTC.top

https://i.imgur.com/9I4FOC6.png (https://i.imgur.com/9I4FOC6.png)



and you should delete this post as it is a lie

since bitminter has  allowed merged mining with NMC