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Author Topic: [$0.35/GH] Bankrupted HashFast Hardware Sale  (Read 5301 times)
cedivad (OP)
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October 21, 2014, 04:36:57 PM
Last edit: October 21, 2014, 06:16:06 PM by cedivad
 #1

HashFast is one of the few companies that was promising 28nm hardware in 2013. As some of you might now, they are in bankruptcy under chapter 11 and have an external CRO (Chief Restructuring Officer) appointed, meaning that the management is not the same as the one that bankrupted the company in the first time.

I was contacted a few days ago by Simon Barber, telling me that they were finally able to secure a very good pricing for manufacturing on their old but proven rev3 “EVO” board design. It’s a single board single chip liquid-cooled miner that typically can be pushed up to 750GH/s.

Hashfast is offering a kit consisting of:

  • A tested good rev3 ‘EVO’ board
  • A CoolIT ECO-III liquid cooling system, with Sanyo Denki high speed fan.
  • A bolster plate, thermal pad and indium foil square

Pricing:

The price per kit will be $260. Shipping, handling, any taxes or import duties and power supply are not included in the price. To complete the system a PC running cgminer and USB cables will also be needed, as well as common hardware like screws and hex standoffs. The kit will have to be assembled by the customer.

Minimum order quantity:

The above pricing can only be reached if HashFast places an order for 2000 boards with their manufacturer. The goal of this thread is to collect interest on this product, in order for HashFast to be able to place an order.

Boards will ship in boxes of 20 from China (FOB Shenzhen). Coolers, fans, bolster plates, cooling pads and indium foil ship from the USA. The customer will be responsible for purchasing screws, standoffs and PSU needed for final assembly of the mining rigs, and doing the final assembly of the board, cooler, fan and PSU.

Orders must be placed in multiples of 20 kits.

Board performance:

With the provided liquid cooling system, board performance will vary depending on how carefully you place and tighten it to the board, and what mounting hardware is used. Please refer to the attached emails for a full explanation on how to obtain up to 750GH out of those boards.

Logistics:

Once the group buy is arranged the ASICs take about a week to be tested and shipped to the chinese board assembly shop. The chinese supplier HashFast is using promised to assemble and ship the first 1,500 boards within 18 days from the reception of the order and parts. That means that this thread needs to collect enough preorders to make the batch worth it’s run, wait for the chip testing and shipping, the board supplier 18 days and then for the delivery courier. Hashfast is waiting for confirmation on the lead times for the bolster plates, cooling pads and indium foil. It is expected to be less than the lead time for the boards. The kit can be operated without the bolster plate/cooling pad/foil at a reduced performance.



Original emails:

Initial email:

Hi Davide,
One of our China manufacturers has just offered us very good pricing on their remaining stock of rev3 boards. This could potentially enable a rev3 group buy. We can supply them with the long lead time parts, and the ASIC, they can produce the board, and we can supply a cooler. [...] Boards ship from China, coolers from US or Canada. The first 1500 boards can be ready 18 days after order placed according to the manufacturer. The China manufacturer has asked for a minimum order of 2000.
Simon


Details about board performances:

Yes, seems OK. I think it is also very possible that the manufacturer will accept a slightly smaller order, if offered. We need to coordinate how the logistics will work. [...].
In general getting something out there sooner rather than later would be good to gauge interest while we work out the logistical details.
With a bolster plate and indium foil (not included in what I've talked about so far) the boards can do 700GH and with careful setup 750GH can be achieved. Note - these numbers are based on our previous chip testing regime - the higher volume chip testing we are doing now could allow a small number of lower performing chips to be passed.


More about board performances:

I've double checked with one of the engineers about speeds, before publishing anything. [...] For the basic board / cooler combination with good thermal grease without bolster plate, he thinks that it's easy to get 600MHz, and with a little skill 700MHz. Higher speeds are possible, but you need to be very careful in how gently and evenly you tighten the cooler. This corresponds to theoretical speeds of 461GH/s or 538GH/s. I'm going to double check these numbers with our China manufacturer, who has done their own extensive testing too. To get higher speeds requires a bolster plate, so the board does not distort and warp when you tighten the cooler down. For highest speeds you need indium foil instead of grease between the chip and the cooler. I'm double checking the numbers for the boards with bolster plate and foil, but historically 700GH has been easy and 750GH with careful setup. Bolster plates are not expensive to get made, but would complicate the project. (You need the bolster plate, a piece of thermal pad to go over it, and a piece of indium foil between the chip and the cooler).

Efficiency at lower hashrate:

In order to set up the boards without the bolster plate, and still achieve good thermal mounting, our China assembly partner uses jig with a clamp that evenly holds the cooler down onto the board, and applies a good pressure, and then the assembly worker screws the cooler on, just turning the screws hand tight. This jig allows the unskilled assembly worker to achieve good, consistent, even mounting pressure.

The same can be achieved by hand, as long as you are careful to do the tightening evenly. One of the software setup tools loads up the chip with dummy work, displays a continuous readout of die temperature so you can watch for even thermal contact as you tighten up the screws.

BTW The china manufacturer reports that running the boards at 450GH he measures 0.8J/GH at the wall.


Components required to push the board to 750GH:

The bolster plate is custom for the board. I don't know of anything off the shelf that would work. They are not expensive, but I will need to get a quote to ensure lead time and price. We have already had a fair number made, so this would be a simple repeat order. A piece of thermal pad is needed between the bolster plate and the board to prevent the metal plate from shorting the components on the bottom of the board. These come in 20x40cm sheets from a chinese manufacturer, and need to be cut into squares with scissors. Thirdly the indium foil comes from the Indium corporation, I will need to check if we have any stock left, or lead time to order.

About logistics:

The biggest question is logistics - if all of this goes to a single buyer, who can do the final assembly, then it's relatively easy. If many small buyers are involved then it's more work.

No problem - I can arrange the ordering of bolster plates/pads/foil.

Our China manufacturing partner will ship the boards to multiple customers though. They need a shipping solution, and I have offered to send them the design for the shipping solution we used to ship boards to Ciara in Montreal. This solution is a specially designed cardboard box that takes 30 boards, and offered good protection for them.

The China partner is using the same coolers as us, but got better performance numbers than our engineer reported for the stock support/grease configuration (which we did not experiment with much - we focussed on the enhanced bolster plate/foil). They got 550GH from 98% of their boards, and 600GH from about 70% of the boards. This is at 35C ambient, so would do better in a cooler place. Given this variability I think we need to offer the boards at a fixed price per board, and let people know the different performance range that can be expected, so they can calculate $/GH themselves. In addition they stated that, like us, the exact process of mounting of the cooler to the board is critical. Applying the pressure evenly and gently is important. Doing it well makes a big difference in performance, and since we'd be leaving this to the end users we can't guarantee what their work will be like, so we can't make any statement about performance.


Shipping details:

Getting the shipping boxes made for the boards will not cost much, but shipping will have to be insured, to make sure any damage loss is covered. These prices won't allow much buffer for handling returns.

We would ship coolers from the USA or Canada in boxes of 4, and fans in boxes of 20. The end user would need to purchase a PSU, screws, and standoffs to complete their rig.

Also - given that the coolers come in boxes of 4, the fans in boxes of 20, and the shipping boxes for boards would typically carry 30 or so (but can be made any size), I think it might be difficult to support customers ordering 1 or 2 - since it will require a lot of repacking. The whole point of a group buy is to reduce the number of orders (ideally to 1) so that the consolidated shipping/handling makes all these things easier/cheaper. Perhaps an ordering unit of 20 boards would work - although more would be better. The China manufacturer can have the board shipping boxes made up to carry 20 boards, and we can ship 5 boxes of 4 coolers and 1 box of fans to each customer. We will also need some packaging (a box) to ship the 20 coolers, 20 fans, 20 bolster plates, thermal pad material for 20 boards, and 20 pieces of foil.

My anger against what is wrong in the Bitcoin community is productive:
Bitcointa.lk - Replace "Bitcointalk.org" with "Bitcointa.lk" in this url to see how this page looks like on a proper forum (Announcement Thread)
Hashfast.org - Wiki for screwed customers
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cedivad (OP)
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October 21, 2014, 04:38:41 PM
 #2

FAQ Reserved post.

My anger against what is wrong in the Bitcoin community is productive:
Bitcointa.lk - Replace "Bitcointalk.org" with "Bitcointa.lk" in this url to see how this page looks like on a proper forum (Announcement Thread)
Hashfast.org - Wiki for screwed customers
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October 21, 2014, 04:45:09 PM
 #3

So you want us to pre-order stuff from Hash-fast? Am I taking crazy pills?
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October 21, 2014, 04:45:33 PM
 #4

I hate "Up To" ratings. What's the guaranteed hashrate? What's the wattage at the wall on these? It's looking to me like a Bitmain S3 would be a far better buy.

Buy & Hold
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October 21, 2014, 04:51:36 PM
 #5

So you want us to pre-order stuff from Hash-fast? Am I taking crazy pills?
No, I don't want anything. I was proposed this deal and I'm doing my best to propose it to the community in the most transparent way possible. HashFast is now under the control of a CRO, so you are not buying from the scammers I talk about on hashfast.org. The price per GH should be one of the best of the market, so do your own calculations. I would probably order if I had cheap energy, just to finally have some hardware from this company, 1 year after the date they promised to ship my Baby Jets.

The board is "up to" 750GH because you need some special (and cheap) components to push it at that level, that are included in the price. Without "bolster plate, thermal pad and indium foil square" you would only get around 450GH per board, that is where $0.60/GH comes from. It's all explained in the emails.

I will edit the title to reflect that.

The J/GH ratio is 0.8J/GH at lower speeds (around 450GH). It goes around 1.1J/GH at higher speeds. (I will now publish the email with that information if it's not in that list already).

My anger against what is wrong in the Bitcoin community is productive:
Bitcointa.lk - Replace "Bitcointalk.org" with "Bitcointa.lk" in this url to see how this page looks like on a proper forum (Announcement Thread)
Hashfast.org - Wiki for screwed customers
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October 21, 2014, 04:57:29 PM
 #6

So you want us to pre-order stuff from Hash-fast? Am I taking crazy pills?
No, I don't want anything. I was proposed this deal and I'm doing my best to propose it to the community in the most transparent way possible. HashFast is now under the control of a CRO, so you are not buying from the scammers I talk about on hashfast.org. The price per GH should be one of the best of the market, so do your own calculations. I would probably order if I had cheap energy, just to finally have some hardware from this company, 1 year after the date they promised to ship my Baby Jets.

The board is "up to" 750GH because you need some special (and cheap) components to push it at that level, that are included in the price. Without "bolster plate, thermal pad and indium foil square" you would only get around 450GH per board, that is where $0.60/GH comes from. It's all explained in the emails.

I will edit the title to reflect that.

Well then who would I be sending BTC to? If I decide to buy any hardware. Some form of escrow would be ok, but I doubt that since you kinda wanna do group buy.

The price is good, but this is one of those "too good to be true" kinda deals for me.
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October 21, 2014, 04:59:10 PM
 #7

So you want us to pre-order stuff from Hash-fast? Am I taking crazy pills?

Even AsicMiner is taking pre-orders these days.  No risk, no reward.  Maybe you should stick to buying used machines for $1/GH off eBay instead.


I hate "Up To" ratings. What's the guaranteed hashrate? What's the wattage at the wall on these? It's looking to me like a Bitmain S3 would be a far better buy.

The Bitmain isn't rackmount, so no good for colo use.

The Yoli will do 700GH/s without breaking a sweat.  Wattage varies greatly depending on how fast you run it. 



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October 21, 2014, 05:01:57 PM
 #8

The Bitmain isn't rackmount, so no good for colo use.

Liar. Bitmain products work just fine in a bitcoin focused colo. The Bitmain S3 is far superior to this risky pre-order crap.

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October 21, 2014, 05:03:21 PM
 #9

Well then who would I be sending BTC to? If I decide to buy any hardware. Some form of escrow would be ok, but I doubt that since you kinda wanna do group buy.

The price is good, but this is one of those "too good to be true" kinda deals for me.
I was proposing to keep a 2-of-2 multisig address. I would own the first key and HF the second one. For now HF decided that they are not interested into this escrow account, and that if this thread had enough attention, it would have been something that could be done.

However, this escrow account would be only until for group buy purposes, since that the founds would have to be released to HF that would then pay the Chinese supplier completely upfront.

I think that an alternative, like the funds are hold in the escrow account, while HF pays the Chinese supplier out of their pocket, and I release my key only that the majority of the people successfully receive their hardware, could be worked out, if HF had enough cash, that is something I think not to be the case.

My anger against what is wrong in the Bitcoin community is productive:
Bitcointa.lk - Replace "Bitcointalk.org" with "Bitcointa.lk" in this url to see how this page looks like on a proper forum (Announcement Thread)
Hashfast.org - Wiki for screwed customers
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October 21, 2014, 05:05:01 PM
 #10

The Bitmain isn't rackmount, so no good for colo use.
Those bare boards aren't rackmountable either. You need to setup them like that on your own if you wanted to rackmount them.

Now please go away.

Please note: the image IceBreaker posted has J/GH measurements taken at the chip level. You need to multiply them by 1.1*1.1, but those numbers vary on the efficiency of external and internal transforms (and could be lower).

My anger against what is wrong in the Bitcoin community is productive:
Bitcointa.lk - Replace "Bitcointalk.org" with "Bitcointa.lk" in this url to see how this page looks like on a proper forum (Announcement Thread)
Hashfast.org - Wiki for screwed customers
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October 21, 2014, 05:06:24 PM
 #11

Well then who would I be sending BTC to? If I decide to buy any hardware. Some form of escrow would be ok, but I doubt that since you kinda wanna do group buy.

The price is good, but this is one of those "too good to be true" kinda deals for me.
I was proposing to keep a 2-of-2 multisig address. I would own the first key and HF the second one. For now HF decided that they are not interested into this escrow account, and that if this thread had enough attention, it would have been something that could be done.

However, this escrow account would be only until for group buy purposes, since that the founds would have to be released to HF that would then pay the Chinese supplier completely upfront.

I think that an alternative, like the funds are hold in the escrow account, while HF pays the Chinese supplier out of their pocket, and I release my key only that the majority of the people successfully receive their hardware, could be worked out, if HF had enough cash, that is something I think not to be the case.

Nice idea. I understand HF needs to pay for the hardware, but personally I feel if they want to "make up" with the community they can fork over their own money instead of ours.

Thanks for answering my questions.
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October 21, 2014, 05:08:47 PM
 #12

Haha pre orders again? I can not imagine anyone is stupid enough to do this...
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October 21, 2014, 05:09:13 PM
 #13

The Bitmain isn't rackmount, so no good for colo use.
Those bare boards aren't rackmountable either. You need to setup them like that on your own if you wanted to rackmount them.

Now please go away.

Please note: the image IceBreaker posted hash J/GH taken at the chip level.

I think HF still has a bunch of Sierra rackmount cases.  Even if they don't, bare boards are much easier to put in rackmount cases than the nonstandard Bitmain chassis.


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"The difference between bad and well-developed digital cash will determine
whether we have a dictatorship or a real democracy." 
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October 21, 2014, 05:11:43 PM
 #14

I think HF still has a bunch of Sierra rackmount cases.  Even if they don't, bare boards are much easier to put in rackmount cases than the nonstandard Bitmain chassis.
You are right, and they should be like $50 each. They are in the schedules. However that adds to the complexity, and I guess that shipping it won't be cheap.

My anger against what is wrong in the Bitcoin community is productive:
Bitcointa.lk - Replace "Bitcointalk.org" with "Bitcointa.lk" in this url to see how this page looks like on a proper forum (Announcement Thread)
Hashfast.org - Wiki for screwed customers
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October 21, 2014, 05:15:08 PM
 #15

I think HF still has a bunch of Sierra rackmount cases.  Even if they don't, bare boards are much easier to put in rackmount cases than the nonstandard Bitmain chassis.

Which bitcoin colo won't host S3s?

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October 21, 2014, 05:18:34 PM
 #16

I think HF still has a bunch of Sierra rackmount cases.  Even if they don't, bare boards are much easier to put in rackmount cases than the nonstandard Bitmain chassis.
You are right, and they should be like $50 each. They are in the schedules. However that adds to the complexity, and I guess that shipping it won't be cheap.

The empty cases are bulky, but don't weigh very much.  They are custom cut to accommodate three radiator/fans and two PSU, although I'm not sure if the board mounts work with the new Yoli boards.


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"The difference between bad and well-developed digital cash will determine
whether we have a dictatorship or a real democracy." 
David Chaum 1996
"Fungibility provides privacy as a side effect."  Adam Back 2014
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October 21, 2014, 05:27:13 PM
 #17

So you want us to pre-order stuff from Hash-fast? Am I taking crazy pills?

i think he is saying that lol...let me flush some money down the toilet instead - easier way to get rid of it.

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MrTeal
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October 21, 2014, 05:29:41 PM
 #18

I think HF still has a bunch of Sierra rackmount cases.  Even if they don't, bare boards are much easier to put in rackmount cases than the nonstandard Bitmain chassis.
You are right, and they should be like $50 each. They are in the schedules. However that adds to the complexity, and I guess that shipping it won't be cheap.

The empty cases are bulky, but don't weigh very much.  They are custom cut to accommodate three radiator/fans and two PSU, although I'm not sure if the board mounts work with the new Yoli boards.
They will, though you'll probably be limited to two boards per chassis if you want to run the Yoli boards full out, unless you want to invest in a couple 1200+W ATX supplies to power three.
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October 21, 2014, 05:44:03 PM
 #19

I think HF still has a bunch of Sierra rackmount cases.  Even if they don't, bare boards are much easier to put in rackmount cases than the nonstandard Bitmain chassis.
You are right, and they should be like $50 each. They are in the schedules. However that adds to the complexity, and I guess that shipping it won't be cheap.

The empty cases are bulky, but don't weigh very much.  They are custom cut to accommodate three radiator/fans and two PSU, although I'm not sure if the board mounts work with the new Yoli boards.
They will, though you'll probably be limited to two boards per chassis if you want to run the Yoli boards full out, unless you want to invest in a couple 1200+W ATX supplies to power three.

Great point MrTeal.  And most consumer 1200+W PSU are not up to the task of feeding hungry maxed-out Yoli boards for very long until they fail (sometimes taking a board with them)!  You could get two 1200W Seasonics, but will pay a premium for their server-grade reliability.


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eightcylinders
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October 21, 2014, 05:47:09 PM
 #20

I would be interested in a quantity order even given the history and bankruptcy, but the price point would need to be a lot lower to be competitive.

The Bitmain C1 is an almost perfectly comparable product - .80 J/Ghs at the wall, 1 Terahash, liquid cooling included... but unlike the Hashfast, it is a fully enclosed ready to run system and is priced at 1 BTC / Terahash.  The GB here would be for a product that needs work, and at .80 J/Ghs the performance is 500 Ghs... so to compare apples to apples, you need 2x of the Hashfast to achieve the same results (at .80 J/Ghs) as the Bitmain product, plus I would have to spring for an enclosure, controller/rpi and spend time assembling things...

That makes the Hashfast bankruptcy sale 2x++ more costly than the Bitmain product! on a comparable (J/Ghs) finished product basis.  Plus, I get top notch customer service and after-sale support from Bitmaintech that would not be available form a bankrupt company.

As a liquidation specialist, I would think that Hashfast's trustee could do a lot better than this.  Taking out the cost and trouble of assembly, case, standoffs, screw, etc. and the lack of meaningful warranty (assume they would do warranty on DOA basis, but in bankruptcy sales even that is sometimes not done) .. I would imagine the price should be half of what it is now. 

Suggest that you look at the market again, and come back with detailed pricing and terms that make sense.  Larger minimums may be needed, but at the very least you should have an offering that beats the C1 pricing by a good margin.


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