Topic: Black Arrow 28nm 100Ghash Bitcoin ASIC from $0.49/GH/s - page 101. (Read 787050 times)

On a more serious note, I am guessing the surprise has not been announced. Surely if Minersource is sending out stock, the they should be annoucing it very soon?

Our products come with 1 year warranty unless stated otherwise. Please read our terms and conditions for more details.

https://blackarrowsoftware.com/store/terms-and-conditions-en.html

Limited Warranty

7.1 We warrant the Products against defects in material or workmanship, for a period of one year from the date of purchase; we will, at no charge, repair the Products if they are determined by Us to be defective. After the warranty period, the Purchaser must pay all labor charges.
7.2 We will supply new or rebuilt replacements for parts determined by Us to be defective, at no charge, for a period of one (1) year from the date of purchase.
7.3 During the labor warranty period, to repair the Product, Purchaser will return the defective Product freight prepaid, or deliver it to Us. The Product to be repaired is to be returned in either its original carton or a similar package affording an equal degree of protection. We will return the repaired Product freight prepaid to Purchaser. All freight costs associated with replacement of warranty parts after expiration of the original labor warranty period are the responsibility of the Purchaser. We are not obligated to provide Purchaser with a substitute unit during the warranty period or at any time.
7.4 To repair the device under warranty, the customer has to inform us in writing or via email. We will then e-mail an RMA number, the shipping address and instructions. The product will then have to be returned by the customer to the specified address (to our factory or facility).
7.5 This warranty will apply provided that the Products have been used in accordance with the published instructions and does not cover normal wear and tear. Unless otherwise stated our products are for indoor usage only and using them outdoors voids the warranty. This warranty not apply to any of our products which should have been repaired or altered (except by us), tampered with or the seal case has been broken (if applicable), poured onto glue or any other kind of liquids / substances, subjected to misuse, negligence, or accident.
7.6 In no case shall our liability exceed the purchase price. The mentioned provisions do not extend the original warranty period of any product which either been repaired or replaced by us. The user is solely responsible for determining if the product is usable in his or her application.
7.7 We will not cover, under any circumstances, any customs or customs processing charges. Any such charges will be billed to the customer.

7.8 If a product has been returned for warranty repair and it is found to be in working order, we will charge a revision fee and the shipping fees to return it back to the customer.

Lmao, that is EXACTLY what i was thinking. Thanks black arrow.

I really hope the building they are in collapses around them.

 Marto. Do you think these boards would be fine to be submerged in mineral oil? I just requested bob send my 200 chips to you and looking for an easy way to cool them. Also, I think if I am reading this right, you install a generic heatsink? If so, will that be enough if they are are submerged?

(Licking my chops for 25 th/s)

Scrap'

 Please count 200 of them as mine

The first time, in May, I went for a wire transfer refund since that's the way I paid. The 2nd time 1.5 week ago I opted for BTC.
After a week I got this email:


So it seems I have to wait again for an infinite time, this just sucks especially because they promised me twice to refund and I was happy with the thought finally getting my $ back. I can't do anything more except wait and maybe sharing my experience here helps people.

Don't pre-order kids  

Why would there be a queue? Can't they pay everyone back?

Minersource have a ton of people in their refund queue, so if you're still waiting 2 months now, I'd advise you to go for store credit instead.

This way you can get miners that you can actually use, or if you choose, sell them on eBay for fiat or this forum for BTC.

Sell your chips recoup what you can and buy something that is in stock from Bitmain or Rockminer or simply take BTC for your chips. The faster you do that the better off you will be in the long term. Making these into boards now is just not worth it. Who will be first in line to get boards? Who will be last? Does the board fabricator have the capacity to do 1000s of boards day? A week? A month? Suggest you rethink fabrication especially without a clear DELIVERY date for chips and the miners. This a huge nightmare in the making don't get caught up in it if you can get out now do it.

Did everyone else got their refund except me? I've been waiting for two months now. Minersource promised twice to refund me and both times the refund never came.  

I seem to be ignored for some reason, guess customers aren't that important. I've waited patiently on the machines and after that on the refund but this is just a nightmare.

Surprise! You get capacitors that won't explode!

Surprise!

Good point. Looks like those boards aren't available yet? Here's the link to the pre-order for those that want to investigate.

Bobsag3 is the compensation the same for batch 1 as 2 as batch 1 paid more

Fair enough. Good deal if $223 includes the price of 4 Minion chips.

Let's say without the TPLINK router and PSU, since you need one for S3 as well. Hex4M with heatsink comes to about ~$300.

Price diff: $150
Power Diff: 114W

Hex4M would be a better choice than S3, assuming power cost is 10cents per kWH.

EDIT: Correction, you do not need TPLINK for S3.

After MIR price is only useful if you are buying a couple since almost no MIR will let you get a rebate for 12 units. You'd probably be better off (and get a much better supply) if you bought four of Sidehack's DPS-2000B boards with cables for $366 along with four PSUs off eBay for $120, and ran four boards off each one.

To be fair, with the groupbuy for these boards they'll be 20% off, so ~US$223. You didn't add on $80 in heatsinks if you can get a deal and say 1/4 of a TPLINK router (assuming running four boards off one) for $13, so you're at ~$320 plus the cost of chips and shipping back and forth.

Obviously just getting a refund is the best option, but if you assume that refunds from BA will be slow to come (or never arrive) getting a Hex4M might be worthwhile.

Sending in 2x the chips and getting an assembled boards is a much better deal though. If you have an X3, sending 96 chips in and getting 12 boards for only shipping and $1300 for heatsinks and TPLINK routers is a great deal. Sure you need to add 6kW worth of power supplies, but you'd have to add almost that much worth for the S3s anyway.

Batch 2 X-1 units have no compensation correct?

Ok, the whole idea that the hash rate will drop as older equipment is retired is probably very far from reality.
Hash rate growth will level off as people consume their entire supply of electricity with 28nm equipment. We haven't hit the top yet by any stretch of the imagination. Hashrate will not be dropping.

Thread is still open, just now self moderated so we can keep it to discussions like this.

I was going to post this in the group buy thread, but bobsag3 locked it. I hope this is helpful for those thinking about exchanging for bare chips.


Fisrt of all, paying for assembly with chips is a pretty good deal. You're getting a value of $69.75  per chip from Technobit. Much better than the $35 or $25 others are offering. Who are the vultures?

Assuming 1 X3, that's 100 chips. You end up with 12 boards, with four chips left over. 8 chips per board - that's 4 in the board, and 4 for payment.
So a grand total of 4.8 TH consuming ~4800 W.

Additional costs include coolers for each mounted chip, so in this case 48 coolers. Any socket 1150 cooler will work, but it needs to dissipate 100W. Also you'll need ATX PSUs to power them. In my opinion, I'd go with 12 500W units rather than powering multiple units with one PSU. The 1000W+ PSUs get proportionally more expensive. 500W units are much more common and cheaper per watt. YMMV.

So I found some 100W coolers for $10 a pop. If you want beefier ones, you'll pay as much as $25 a pop. So between $500 and $1200 for coolers.
I also found a well reviewed 500W PSU on sale for $25 after MIR. But you can easily find them for $50. So between $300 and $600 for PSUs.

So let's take a middlish price and say $1200 in additional out of pocket expense for 12 boards, or $100 per board to get them running. Plus you still have 4 chips which you could have mounted on a 13th board for $279.

So you would end up with 5.2 gh/s for an extra $1600. That's about 60% more hashing power. Is it worth it, or is it throwing good money after bad? You decide for yourself.