Avalon A7 announced

[edonkey]

Does the controller come with its own 5v power supply, or just a micro USB cable?

As I recall you have to supply the 5V wall wart w/micro USB cable to power it. Just search Amazon or whoever for Pi power supply. Of course, check Canaan's website for the controller info. It'll say of it comes with one.

The RasPi from Canaan has a nice solid metal case so is a decent price. I've seen metal Pi cases go for around $20-30.

Thanks for getting back to me. Their site only mentioned the USB cable. I asked about the wall wart on the outside chance that they supply it but didn't mention it on their site.

Yes, it would be hard to beat their $65-ish price (including shipping) and get a metal case. Of course I could get a slight savings putting together my own RPi 3 with a cheap plastic case.

Or for that matter I could retire one of my old stick mining rigs and take over its RPi (assuming that older RPis work; I'll do some searching to see what minimum RPi is required).

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[NotFuzzyWarm]

Does the controller come with its own 5v power supply, or just a micro USB cable?

As I recall you have to supply the 5V wall wart w/micro USB cable to power it. Just search Amazon or whoever for Pi power supply. Of course, check Canaan's website for the controller info. It'll say of it comes with one.

The RasPi from Canaan has a nice solid metal case so is a decent price. I've seen metal Pi cases go for around $20-30.

Thanks for getting back to me. Their site only mentioned the USB cable. I asked about the wall wart on the outside chance that they supply it but didn't mention it on their site.

Yes, it would be hard to beat their $65-ish price (including shipping) and get a metal case. Of course I could get a slight savings putting together my own RPi 3 with a cheap plastic case.

Or for that matter I could retire one of my old stick mining rigs and take over its RPi (assuming that older RPis work; I'll do some searching to see what minimum RPi is required).

I use a Pi circa early 2014, b1?, for a testing node when flashing miner Firmware and works fine. Canaan has said it is ok to use but I suspect that aside from having only 2 USB-A ports, the cpu itself might struggle with several miners on it. Just dl the right software image for whatever version Pi you use from https://canaan.io/question/how-do-i-connect-an-avalonminer-721-and-avalonminer-controller-including-raspberry-pi-1-2-and-3/ and burn a SD card with the image.

Along that line: A single Pi can run both A721 and A741 miners on it at the same time. I assume whenever the 761 comes out it can also be ran with the rest of the 7xx family on 1 Pi. With 2 caveats that is...

A) When playing with the Vcore setting it affects ALL the miners on that RasPi. That means if the 741's are running hot but 721's are ok, using -2 to cool down the 741's is needlessly also slowing the 721's.

B) When it comes to flashing MM Firmware updates they are MODEL SPECIFIC!  Easy to forget this but just like the Vcore setting, applying MM updates through the GUI flashes ALL miners attached to that Pi! Flashing 721's with 741 Firmware makes them very unhappy. Been there, done that....

C) Have a spare Raspi with the IC2 dongle around  already setup to use as a stand-alone test/flashing controller to fix fups...

[ZedZedNova]

Does the controller come with its own 5v power supply, or just a micro USB cable?

As I recall you have to supply the 5V wall wart w/micro USB cable to power it. Just search Amazon or whoever for Pi power supply. Of course, check Canaan's website for the controller info. It'll say of it comes with one.

The RasPi from Canaan has a nice solid metal case so is a decent price. I've seen metal Pi cases go for around $20-30.

This is not Amazon, but check on Amazon as sometimes they sell there.

https://www.adafruit.com/product/1995

I've ordered a bunch of stuff from them and they are easy to deal with. They also have dealers/resellers in other countries if you are not in the US.

[NotFuzzyWarm]

Legit bump to thread
Any word on the 761 that has been hinted/speculated about?

[Lukasix]

Legit bump to thread
Any word on the 761 that has been hinted/speculated about?

I recently wrote to them with the following message:

Hello,

At the moment i am planning to buy two miners. I also heard from somewhere that a new miner is coming out soon, can you confirm that?

Regards Jan

There reply was the following:

Sorry, we are here.

As for DHL, for small orders under 50 we cannot use. So please proceed with FEDEX for now.

As for new machine, we do not have a new machine coming out right now.

Please place an order and open a new ticket when ready: canaan.io/shop

 

Jon

But i don't know how serious you can take this statement.

Regards Jan

[HagssFIN]

Well of course they are denying it, but they don't write the code just for fun.

I would be surprised if they only have the 761 for internal mining, but not for public sale.
That is not how Canaan usually goes with things.

[VentMine]

I would be surprised if they only have the 761 for internal mining, but not for public sale.
That is not how Canaan usually goes with things.

We'll that's extremely shitty of Canaan if that's true

[usernamehere]

I would be surprised if they only have the 761 for internal mining, but not for public sale.
That is not how Canaan usually goes with things.

We'll that's extremely shitty of Canaan if that's true

It's not "shitty", it's called testing which is how product development works.

[ZedZedNova]

It's not "shitty", it's called testing which is how product development works.

Maybe they are used to *main's tactics.

• Pre-selling thousands of units to pay for lavish vacation homes and wild gambling junkets in Macau rapid prototyping of "B1 miners"
• manufacturing the B1 miners
• shipping the B1 miners
• waiting for the test results from the B1 Alpha test sites
• revising the B1 prototype miner design now named B2
• go to step 1, and repeat until Bxx using current ASIC no longer sells

[NotFuzzyWarm]

I would be surprised if they only have the 761 for internal mining, but not for public sale.
That is not how Canaan usually goes with things.

We'll that's extremely shitty of Canaan if that's true

It's not "shitty", it's called testing which is how product development works.

Ja. Would you prefer that they build only a dozen or so, test for only a week or 2, then go into full production making and selling thousands of them only to then find 1 in 20 fail?  Ya know, rather like the Bitmain R4 saga has played out?

[HagssFIN]

I went ahead and bought a buddy to my 721: one A741 to replace S7-LN that I sold recently (going to re-locate my PSUs)  
I'll probably end up hooking it up with the HP DPS-1200FBA (Gekkoscience/Bitshopper.de kit) power supply.

[PeaMine]

741 is handling summer quite well for me compared to my S7 and S9s.
Thermal monitoring seems to be very responsive, and whatever they're doing with auto-tuning is very stable and efficient compared to the S9.
S7 boards dropping like flies, while I've had to restart cgminer maybe 4 times in 4 months for the A741s for a couple "stuck" miners, which seems latest firmware fixes.

[notabeliever]

How to improve A721 mining with less invalids on a p2p pool? invalids are 1.38 to 2th

[Duce]

Assume you are talking about per A7, are you on your own node? Mine was no where close to that rate when I was mining on my node. I did update to the latest MM and controller FW.

[kritment]

Boys any update on this? When can I buy 761s, sorry getting greedy and anxious.
Need to buy 50 just want to stay away from S9 due to high failure rate

[frodocooper]

How to improve A721 mining with less invalids on a p2p pool? invalids are 1.38 to 2th

AvalonMiners are slow at switching over to new work, causing much higher DOA rates on P2Pool, as P2Pool's work restarts are very frequent (approximately once every 30 seconds).

I've reported it to Canaan's support team, and their own tests have yielded the same high DOA rates. I'm not sure whether they plan on resolving this issue; their advice to me was to "switch to another pool."  . I haven't heard from them since.

I myself am experiencing an average DOA rate of 15% on jtoomim's fork of P2Pool, compared to a pool average of around 2%. jtoomim has plans to change P2Pool's sharechain mechanism to reduce the frequency of work restarts, but he says it's still a long way off.

Until Canaan and/or jtoomim gets around to resolving this, there isn't much we can do on our end.

[HagssFIN]

Boys any update on this? When can I buy 761s, sorry getting greedy and anxious.
Need to buy 50 just want to stay away from S9 due to high failure rate

No update, we don't know more than there is public info (code in Github, news, etc. ..)
You could ask Canaan directly, but they most likely won't answer a question about product still in development.

[coldbitcoins]

hopefully the 741 miners go on sale before the 761 miners come out. i would buy another 741 at a lower price.

[_noname_]

Wow, it is less than 1KW, that's nice!
But the price is too high. Would think about purchasing it, if the price was 700 dollars

[NotFuzzyWarm]

Wow, it is less than 1KW, that's nice!
But the price is too high. Would think about purchasing it, if the price was 700 dollars

Price is dropped to $714 https://canaan.io/shop/
oth, I ordered another 741 two days ago and because of the typical time lag in communications with them to get the BTC price/address to send to they are now out-of-stock again and can't fulfill the order (yet). New stock arrives over the weekend so fingers crossed