Had my Z9 mini 2 days ago and have been on PH that seems to work.

I just noticed Mining Dutch has added Equihash switch pool so I've just changed over to give it a go.

This is newly added currently with 6 coins on the pool so will need to wait for hashrate to build up the.

stratum+tcp://equihash.mining-dutch.nl:6663

Just need to register an account on their site.

https://www.mining-dutch.nl/

I've been on Mining Dutch with my Baikal X10 since last year and their switching is very good as well as the option to choose the coin you want to payout in. Well they even provide an algo switching software for the X10 to maximise your earnings.

For those who upgraded their fan, you can skip the fan speed update and just perform the second update for the hashrate.

The problem with the fan speed update is that it will set fan speed to 50% so your replacement fan will be too slow to cool the B3 down.

We all have our bad days at work, don't worry about it!

I think the refund was a group effort rather than a single person's and Bitmain was flooded with tickets on the matter so they asked everyone to stop submitting. Good outcome anyway.

I've also put my B3 on uupool and earning is similar but it was left off until two days ago due to the amount of noise it makes.

I have change the front fan and removed the rear fan so it is now running pretty quiet. Temp wise, it is sub 50c for chip and sub 40c for board.

Second batch has already shipped so let see how the earnings will be in a weeks time.

So if you want to get the refund of 578USD in BCH for your 1st batch B3, just submit a ticket to Bitmain and reply your ticket following their instructions.

Just an update, a REFUND for International customers is going to happen. Bitmain replied my ticket and have confirmed it. The amount is USD578 in BCH.

Below is their reply:

They did not say the exact amount, they just said "we will send you coupon later"

Well, you don't get if you don't ask and this seems to be the case for customers in China . If you are happy accepting your own fate and do nothing about it then so be it. Things will never change unless something is spoken.

I submit a complain ticket and I said I am not happy about the second batch shipping and the price drop. Then I said it is only fair if international buyer can also get a refund and reference this article.

Well let's see how they response.

Based on unconfirmed information from my friends in China on Wechat, they said a lot of people in China were very angry with Bitmain about the second batch of B3. They demand some kind of refund and not coupon otherwise further action / visits will be taken.

How true this is I really don't know but the least I can do is write a complain ticket and hope for the best.

They might ignore 100 complains but might act different if there are 500+.

They said they will issue coupon but if they can refund like in China in cash or coin is better.

I have also submit a ticket to Bitmain myself. I had a live chat with them earlier today and they only said coupon will be issued

Even I found it unusual for Bitmain to refund. If the second batch is a month later then fair enough.

This is actually an announcement from their official wechat.

https://mp.weixin.qq.com/s/8zAaQz-C-jTxrWRgec7O6w

Bitmain is officially issuing 4000RMB (628USD) to first batch B3 buyers in China. This is apparently due to many angry customers complaining with the second batch of B3 releasing 1 day after the first batch and at a much lower price.


I have attached a screen shot of their official reply in Chinese for China customer as well as the Google translate version.


Link to this announcement from their official wechat: https://mp.weixin.qq.com/s/8zAaQz-C-jTxrWRgec7O6w


So how about all the International buyer? We should be entitled to the refund also. Guy's let's get our money back!


Original Chinese email


尊敬的客户：

您好！

感谢您对蚂蚁矿机B3（以下简称“B3”）的支持和厚爱，为了回馈老客户，我司对符合以下条件的客户提供退款。

 

退款对象：

截止本公告发布时，已通过蚂蚁矿机官网（https://shop.bitmain.com.cn以下简称“官网”）购买单价为人民币17000元的B3且已经全额支付价款的客户。

 

退款方案：

对于退补对象，每购买一台单价为人民币17000元的B3且全额支付价款的，退还购机款人民币4000元。

 

退款申请流程：

请使用您官网注册的邮箱，发送以下信息到邮箱sales.support@bitmain.com：

1、B3订单号；

2、付款人姓名或名称、联系方式；

3、原付款银行卡账户信息，包括账号名称、账号、开户行信息；

4、申请退款的金额。

 

我司会在收到您的申请信息后尽快核对，如核对无误，预计会在30个工作日内将退款退还至您的原付款银行账户，具体到账时间以银行到账时间为准。

 

如有任何问题欢迎致电或联系微信公众号：蚂蚁矿机销售。我们将竭诚为您服务，感谢您的支持！

 

 

 

福建湛华智能科技有限公司
2018年5月2日

 



-----------------------------

Google Translate

Dear Customer:

Hello!

Thank you for your support and love for ant mining machine B3 (hereinafter referred to as "B3"). In order to give back to our old customers, we provide refunds to customers who meet the following conditions.

 

Refund object:

As of the date of this announcement, customers of the ant mining machine official website (https://shop.bitmain.com.cn hereinafter referred to as “official website”) have purchased B3 with a unit price of RMB 17,000 and have paid the price in full.

 

Refund program:

For the target of the subsidy, for each purchase of a unit price of RMB 17,000 for B3 and full payment of the price, the purchase amount of RMB 4000 shall be refunded.

 

Refund application process:

Please use the email address registered on your website to send the following information to sales.support@bitmain.com:

1, B3 order number;

2, the payer's name or name, contact information;

3, the original payment bank card account information, including the account name, account number, bank information;

4, the amount of application for refund.

 

Our company will check your application information as soon as possible. If it is correct, we will refund the refund to your original bank account within 30 working days. The specific arrival time is based on the bank arrival time.

 

If you have any questions, please call or contact WeChat public number: Ant Mine Machinery Sales. We will serve you wholeheartedly and thank you for your support!

 

 

 

Fujian Zhanhua Intelligent Technology Co., Ltd.
May 2, 2018

A brand new company with a partial address in Shaftesbury Avenue, come on do they even know the area before using this address? 90% the address is fake or at most it is the accountant's address. Be warned!

Well in their terms it stated "Welcome to Obelisk, Inc. (“Obelisk”, “we” or “us”). Obelisk is a subsidiary of Nebulous Labs, Inc. (“Nebulous”), the team behind
Sia, which is currently one of the most promising cryptocurrency projects, and one of the only with a working project"

And at least they are transparent about the quantity they are releasing and price is including the PSU.

The Giant B looks like another attempt of the Giant+ 2Ghs by Baikal. Many people paid like $4-7k for it and will take them forever to ROI.  Do your research wisely is my advise. Whatever profit whattomine is telling you now you will get nowhere near that by the time the miner is in your hand. Just like the $300 a day profit on the Giant X10 at the time was only achievable when they announce the preorder.

At near $4000 I will probably go for a S9 @ $2725 instead and even I think that is overpriced. But with BTC @ near $20k, I don't blame Bitmain on trying to double the price.

I think I will skip this one at $4000. Well overpriced to be honest.

With the Obelisk coming out in June you really have 2 less algos within 5 months and Lbry profit is never going to be what you expected by the time you get the Giant B. Good Luck to those who's taking the punt!

I've two from the 24th-30th batch and they arrived last week.

The November batch APW3++ is due to arrive this week.

Hi  Blissz,

Any chance you can give me some ideas on why my temp seems messed up after trying your firmware and rollback to the Bitmain one? I am currently underclocking it to keep the temps down.

I rolled back because my D3 keeps going offline and I didn't like the auto fan speed had been adjusted to such low rpm.

I even tried to flash the Bitmain Nov firmware twice and temp still remain so high.

I have got another problem after tested your firmware from page 1.

After rollback to the official firmware, my temp is really abnormal. It is much higher than usually.

I have 2 D3 in the same location and they normal run around the same 70 / sub 70, but the temp has suddenly shoot right up even after rolling back to the official firmware which is quite worrying.

D3 which tested with your firmware and rolled back to stock is running at 487(default) Board temp 59/59/61 and Chip temp 76/76/78 fan at 4560rpm

D3 right next to it with stock and not tested with your firmware is running at 487 (default) board temp 51/52/56 and Chip temp 66/67/71 fan at 4140 rpm.

My D3 have never had board temp over 57 and they are normally at around 56 max but after flashing your firmware I can't seems to get the temps down.

Please advise!

I second that with regards to the reduce auto fan speed. I have tested it on a batch 1 17Gh D3 and I have rolled back to stock for the time being.

Problem I have:

1) Following your instruction and setting speed at 400 and fan at 25% is risky. The moment I upgraded the firmware my temp went up to 80. I will suggest setting the fan to at least 59% (if ambient temp is around 20 degrees) or higher if your ambient temp is much higher.

2) I tested with lowest, 1,2 voltage at 487 and I am not getting and HW errors but it keeps stopping with no hashrate.

3) You dev fee pool keeps kicking in when I'm trying to test with different settings and it is better if you set it so that it kicks in at the end of the hour or so.

4) Maybe a way to manually tweak the auto fan speed will be useful.

5) A temp protection like the L3 can also help.