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81  Bitcoin / Hardware / Re: [$0.35/GH] Bankrupted HashFast Hardware Sale on: October 21, 2014, 09:28:55 PM
Is the price right? Yes. Does the J/GH ratio still sucks? Absolutely. Does trusting them with a 20-days preorder window sucks as well? Yes.
Sorry cedivad, but the price is horrible for a low efficiency, pre-order, diy kit. Are you sure your BCT account wasn't hacked?
By the price being right, I mean that it's the lowest possible that can be offered without having the Chinese manufacturer loosing money in this too.
I have no idea of what the right price for hardware is nowadays. I'm not even sure there to be a price. Is $0.01/GH a price? Because that's the price I might be buying at, with tomorrow delivery and 60-days payment.

Unfortunately, it's me. But I'm just a messenger. Again, I don't get a cent off this, I'm only trying to propose what was proposed to me, in the most transparent way possible, since that everyone else decided that proposing this thing to the community was only time lost, so they gave up even before trying.
82  Bitcoin / Hardware / Re: [$0.35/GH] Bankrupted HashFast Hardware Sale on: October 21, 2014, 09:01:07 PM
Guys, I completely understand the hate towards HF. My claim is public. Go look that up if you want to know how many $, or rather how many BTC of hate I have towards them. Just run a whois for cedivad.com for my full name to be used in that search. That doesn't mean that they can't do something right, or at least try to do something right, under the guidance of someone different than their old CEO/CFO, the ones that costed HF's creditors more than $15M.

Is the price right? Yes. Does the J/GH ratio still sucks? Absolutely. Does trusting them with a 20-days preorder window sucks as well? Yes. Will they run away with the preorder money? No, since that it would be easier then to lock them away, and I'm quite sure that they don't like the idea, but that doesn't account for the Chinese supplier, of which I don't know the reputation. Is the price the best you are ever gonna get for this specific hardware? Absolutely.

So, while I agree with the sceptics of this thread, while I completely agree with them, please try not to throw your shit at people that are trying to do their best, possibly with no interest, like me (In my specific case, my net gain from a successful preorder is $0.00 and in the best case scenario I would earn something like a tenth of a cent on the dollar on my clam). Feel free to hate IceBreaker and his following shills, feel free to hate the guy who wrote the emails in the first post for his past lies, but please recognise that you are not dealing with them, not anymore.

That doesn't mean "buy", since that again, I agree that some of the alternatives could be more appealing, and that Bitcoin mining is unprofitable in general, that just means to please, not to accuse people who did nothing - in this case, the current bankrupcy management, of having done anything wrong, since that's not the case, and that with a tiny research you could agree with me on that, instead of blindly following and agreeing with the dominant line of thought.
83  Local / Progetti / Re: [IPO] BitBoat on: October 21, 2014, 08:24:49 PM
Ah, se parli di investimento che ti riesce a garantire in un anno un ritorno del 200%, non per vantarmene, dai a me i soldi che hai usato per Bitboat e te li triplico in 6 mesi senza investire in nessuna HYIP e in nessun ponzi, ma facendo attività pienamente legit.
Free Money!
84  Bitcoin / Hardware / Re: [$0.35/GH] Bankrupted HashFast Hardware Sale on: October 21, 2014, 06:07:47 PM
Just sell bare chip guys, this is the best bet for you. Nobody wants the boards, just the chips!
The chips have been on sale for months. However they are quite useless without a board of some kind.
85  Bitcoin / Hardware / Re: [$0.35/GH] Bankrupted HashFast Hardware Sale on: October 21, 2014, 06:02:38 PM
I would imagine the price should be half of what it is now.
I personally have the BOM for the rev3 board, and I would like you to see it. I'm trying to be authorised to share it. Long story short, there is no way the price will halve, and I personally can't understand how they can get this price in the first place. Even by considering the cooling system free, the rest of the components should add up to more than that.

I think that basically HF could make more money off this by selling the cooling systems at $80, that should be below market price. (too bad that the kits are incomplete, and thus can't be sold as retail).
86  Bitcoin / Hardware / Re: HashFast announces specs for new ASIC: 400GH/s on: October 21, 2014, 05:25:50 PM
no word about W/GH?  Wink
Yeah, it sucks, but it's there, 0.8 to 1.1J/GH.
87  Bitcoin / Hardware / Re: [$0.35/GH to $0.60/GH] Bankrupted HashFast Hardware Sale on: October 21, 2014, 05:11:43 PM
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.
88  Bitcoin / Hardware / Re: [$0.35/GH to $0.60/GH] Bankrupted HashFast Hardware Sale on: October 21, 2014, 05:05:01 PM
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).
89  Bitcoin / Hardware / Re: [$0.35/GH] Bankrupted HashFast Hardware Sale on: October 21, 2014, 05:03:21 PM
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.
90  Bitcoin / Hardware / Re: [$0.35/GH] Bankrupted HashFast Hardware Sale on: October 21, 2014, 04:51:36 PM
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).
91  Bitcoin / Hardware / Re: [$0.35/GH to $0.60/GH] Bankrupted HashFast Hardware Sale on: October 21, 2014, 04:38:41 PM
FAQ Reserved post.
92  Bitcoin / Hardware / [$0.35/GH] Bankrupted HashFast Hardware Sale on: October 21, 2014, 04:36:57 PM
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.
93  Bitcoin / Hardware / Re: HashFast announces specs for new ASIC: 400GH/s on: October 21, 2014, 04:26:28 PM
[$0.35/GH to $0.60/GH] Bankrupted HashFast Hardware Sale

Kinda of one of the very best pricing in the market?

No, I'm not IceBreaker.
94  Economy / Computer hardware / [$0.35/GH to $0.60/GH] Bankrupted HashFast Hardware Sale on: October 21, 2014, 04:24:02 PM
Moved to Bitcoin > Mining > Hardware

[$0.35/GH to $0.60/GH] Bankrupted HashFast Hardware Sale

Quote
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:
[...]
95  Bitcoin / Hardware / Re: HashFast announces specs for new ASIC: 400GH/s on: October 21, 2014, 09:07:11 AM
God, why did I try to have a civil discussion with you? How not, now I'm making "personal threats". Like if you didn't use that bullshit a dozen times before and I didn't always specified them to be lawsuits, that I wanted since the very beginning of this process. As I said before, keep that kind of bullshit for your lawyer.

Do you want to quote the judge? How about you don't quote the "it doesn't compute" part?
96  Bitcoin / Hardware / Re: HashFast announces specs for new ASIC: 400GH/s on: October 21, 2014, 08:34:49 AM
The Habanero and Yoli boards work great.  And how do you know the price of BTC "is simply not gonna" retest or surpass previous highs?

BTW, thanks for paying those salaries while HF was "fooling around."   Wink
I didn't say that the bitcoin price is not probably gonna grow in the future. I said that even when that happens, HF won't be there ready to take orders. They will have already closed shop (thanks to the salaries, to start with), or the competition will be able to eat the market almost completely, leaving nothing to our beloved company.

The rev3 design, or pushing a chip to it's limits, is shit design and you know it. It would have made sense in October 2013.

About the salaries, there is no need to worry. I can't wait until something finally happens to the people that doubled their salaries or more while their company was unable to ship shit and didn't have a cent in the bank.
97  Bitcoin / Hardware / Re: HashFast announces specs for new ASIC: 400GH/s on: October 21, 2014, 08:19:18 AM
That doesn't sound "worthless."  Having the masks ready to be fabricated into wafers at TSMC seems like a desirable asset, especially if the price of BTC picks up.
Only if they get the rev4 and rev5 ready after that they have been fooling around with them for months, while we were paying their salaries.

And as you said, only if the BTC price skyrockets and the rest of the competition isn't able to keep up with the demand... That is simply not gonna happen.

So yeah, that's another bullshit post.
98  Bitcoin / Hardware / Re: HashFast announces specs for new ASIC: 400GH/s on: October 20, 2014, 10:27:01 PM
HF was the first full custom 28nm ASIC.  KnC used a shortcut.
Shortcut that made them something like a hundred million dollars.

But yeah, have fun bragging about the full custom asic while they were lying to our very faces about the never arrived promised pictures of the board ... That remember, were covered by a NDA!

99  Bitcoin / Hardware / Re: HashFast announces specs for new ASIC: 400GH/s on: October 20, 2014, 09:14:14 PM
HF wasn't first. That's yet another of his bullshit.
100  Bitcoin / Hardware / Re: HashFast announces specs for new ASIC: 400GH/s on: October 20, 2014, 12:06:45 PM
Just to throw this out there, wasn't there some form of court meeting on the 17th, when we were supposed to get an update?!

+1

Hearing Set OnStatus Conference scheduled for 10/24/2014 at 11:00 AM at San Francisco Courtroom 22 - Montali.(lp) (Entered: 09/10/2014)
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