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1  Bitcoin / Hardware / Bitmain S21 Series on: August 15, 2023, 01:50:16 PM
Just announced on Bitmain's socials -

Premiere at WDMS, breaking closer to 10 J/T. Pretty wild how far mining has come in over a decade.
2  Bitcoin / Hardware / Halong Mining announces the T2, a 17-17.5TH+ Miner on: April 24, 2018, 09:59:40 PM

Quote from: Halong Mining
Some other exciting news is, during the process of fine tuning, we also ran a parallel PCB board design to see if we could squeeze any more efficiency and we ended up with the next model of DragonMint, the T2. This has 68 chips per hashboard, rather than 63 of the T1. The miner is confidently 17TH and above, averaging 17.5TH and above. Efficiency is still being tuned in firmware, and as we are seeing it, range between 93W/TH and 100W/TH at the wall right now.

The T2 has an integrated power-supply, so the device is now plug and play no more fiddling with long power cables from the PSU, nor will the cables potentially get in the way of the fan airflow.

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

Moderator's note: This post was edited by frodocooper to correct erroneous quote formatting.
3  Bitcoin / Hardware / Reviewing the Halong Mining DragonMint T1, a 10nm Bitcoin Miner on: April 12, 2018, 10:02:49 PM
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.

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:,,

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!

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!


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"

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

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!

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

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!


GUI updates (existing and upcoming!) - including a demonstration of the color scheme change!

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

Halong has an official setup video here:

PDF version:

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 (
published one for the T1 here (updated to Beta version - 041518) -

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
Hardware Teardown
New GUI changes

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?" Smiley

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 Smiley

Modified 5/19/18
4  Bitcoin / Mining speculation / KnC Neptune Shipping Speculation (Existing Customers Order) on: December 25, 2013, 05:20:36 AM
This poll is a general survey of when the community believes the majority of the existing customer's batch will ship.

KnC's Network Protection Statement put shipping in March of 2014, will they pull it off?

I believe the majority of machines will be in customer's hands early to mid April, with the subsequent batches 3-4 weeks out (First public batch Mid May, Second public batch mid June)
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