Topic: Avalon A7 announced - page 56. (Read 147640 times)

My order from early august (8/4) shipped on 8/26, and arrived today in CA.

I was thinking about buying 2 of these 741's. Do you guys think it is worth it? Someone said that these last longer than Bitmains miners, is this correct? Also, anyone suggest any specific PSU? I know they only do 1/2 of the S9 but if these come in quicker it could be worth it I guess. How long do you think shipment of these takes?

well im guessing they had about 1000+ orders come in last night. I have order #89374 but if it takes them a week, ill have more btc cleared then so in case i put in a new order for a higher amount of miners and that is order #90763

thats a gap of 1,389. And there is only a team of 3-4 that manually goes order by order to give unique BTC addresses to each individual along with the shipping charges to be added in.

So even if it takes them 5 min for each order you are only talking MAYBE 100 order being filled EACH DAY by each person.

I truly hope all these stupid confirmation emails, slow btc invoicing, etc. dramas are not time buying tactics for the *maybe* non-existent A741.

If BTC is the only option for small orders why do I need to contact by e-mail regarding payment method or open ticket? Confused.

no, but they have been closed for awhile now. they arent open for another 8 hours, plus the time it will take them to get on their computers and run their programs then start going back to the order fulfillment.

They're slammed with orders and seem to hand generate each BTC address (ie: its not automated.) It took several weeks to get an address with the last round of orders.

Does anybody got the BTC-Payment Informations yet? I now got twice the "Which payment option will you use?" Emails.. but no BTC-Adress ..

Customs:

Informal Entries: If the value of your purchase(s) is less than $2500 and your goods are being shipped by mail or freight, they may, in most cases, be imported as an informal entry. However, there are exceptions to this. For instance, if the importation is determined to be for commercial purposes, the value limit for filing an informal entry for many textile items is either $250 or $0 - depending on whether or not the item is subject to Quota (see below). Clearing goods through CBP as an informal entry is less arduous a process than clearing them by filing a formal entry. Essentially, when goods are cleared as an informal entry, CBP will prepare the paperwork, including determining the classification number and duty rate for your merchandise.

Formal Entries: If your goods are valued at more than $2500, or for commercial textile shipments (clothes/materials) regardless of value, you will be required to file a formal entry, which can require extensive paperwork and the filing of a U.S. Customs and Border Protection bond. As mentioned above and for various reasons, CBP may require a formal entry for any importation. CBP, however, rarely exercises this right unless there is a particular concern about the circumstances surrounding an importation.


Luckily if i ever go over $2500 i work next to a port with the CBP office not a mile away if i ever need to clear items myself.


[edit] as for any duty. It looks like its around $2 USD for a single miner and if you hit $3000 the duty is $25, this is an estimate using fedex duty calculator.

They also require payment confirmation such as bank statement, paypal statement and else. Since my coinbase wallet also converts BTC value to EUR I may be lucky able to explain my payment if I do personal visit to customs office

Yes its true! Last time i'm paid $20 brokerage fee (fedex)... it was 2 unit + controller, paid in btc on invoice 1,562.46...
Today just ordered 1 more  now waiting for payment details

I have exactly the same problem at the moment. Explaining customs my btc payment. And that's on top of 26% import+tax. But those problems only sweeten the deal

re Customs: All they will should care about is the value in USD shown on the shipping invoice or the equivalent in your currency.

On July 24 I have paid for one 741 with bank wire without any hassle. Now BTC is only option for small orders?

Unfortunately I dont have any BTC in my wallet right now. And also I could imagine how nice it would be to explain that payment was made with BTC to customs retards in my country 

That ^^ is a canned auto-response from their system. Ja it is rather convoluted process they have but eventually it works...

I don't know how everyone feels lately about Canaan's customer services, but I am not too happy about it.

Earlier this month I asked for support of some technical issues. Jasmine put some technicians in contact with my ticket, then three days later that guy just closed my ticket without a single word of response.

Yesterday, I managed to submit my order of two unitsamong the slow / crashy website after 4 hours of struggling, then created a ticket requesting for btc payment address as per their instruction. This morning I got a reply from Jasmine requesting for confirming my intention to pay in btc:

I was like ?!?!?! Where did I say I wanted to mess with Paypal? Do I have an *option* rather than btc?

What a waste of time.

yep, so to say the efficiency doesnt change is incorrect and depending on your PSU and load you may not be getting the best efficiency they rated.

in the end, spec sheets are king and always view it before any purchase to know what you are getting.

My Aug 7th order is also sitting in JP.  Thanks for sharing that, I feel slightly more at ease.

I ended up with three 741s

You mentioned the 2400W 220V PSU from parallel miner and I know I'll get at least one of those, but what should I do for the third? I like the idea of getting a second 2400W PSU since it makes it easy to add another miner in the future, but I'm wondering what I'm losing in efficiency if I run it a PSU at less than 50% of its rated output.

What do you suggest for the third miner?


Logan4el-- Reply to the email to state that you are paying with BTC and ask them to send the details.

[/quote]

As far  as a PSU goes you should look into Amitylabs, ebay store. They build very nice equipment and are super helpful in making sure you get the right machine for what you are mining. If you live in the US, they also provide free shipping.

Mostly right. You have to check the spec sheets for the supplies to know their exact efficiency curve. You will see that most are fairly flat from 40-50% load up to around 80% of max load. The eff drops at the ends come from 2 things: at the low end it is a matter of what power the PSU's control/drive circuits use and switching losses, both are fairly low but as you take less power out of the supply those fixed losses become a higher proportion of input power. At the high end the drop is from the fans running full speed vs a lower speed. The power used by a fan increases as the cube of rpm so 2x speed = 4x the power feeding it.