7nm Avalon ASIC (A3206) • AvalonMiner A9 • 0.06-0.07 J/GH

[mrb]

Edit: I think the screenshot showing "A3207" is a typo, and is meant to read "A3206". Edited the topic to reflect that.

Looks like redtheminer spilled the beans first:
https://twitter.com/redtheminer/status/1024307705006022657

• Product: AvalonMiner A9 series
• Speed: 26.5TH/s - 30TH/s
• Power: 1720 W (typical)
• Energy efficiency: 0.06~0.07 J/GH
• Chip: A3207 7nm ASIC
• Fan: 1x 14038 fan
• Note: Subject to changes(translation?)

[1715048371]

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[1715048371]

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[1715048371]

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[NotFuzzyWarm]

Sweet. Will be interesting to see the pricing of it.

Along these lines, wonder if Blokforge.com upgraded my recent order for an APW3++ to the 1,800w APW7 (for free) because they know I'll be getting some of these. Safe bet Blokforge knew about these coming out and being the superb company they are them giving the free upgrade would not surprise me in the least

[HagssFIN]

Cryptouniverse (official Canaan distributor) also posted news about this: https://www.cryptouniverse.at/canaan-announces-avalonminer-a9-the-most-efficient-7nm-bitcoin-miner-in-2018/

[toptek12]

I wonder if they will get the power usage down more over time not that it matters it doesn't i have solar i can run three of those in my house with no issue the only pain i see is the noise level those fans do 61 Db .. but id like to see the power usage go down as the th goes up that would be nicer to see . but they beat out the one i linked from Blokforge.com some place that maxes out at 33 th i think it was and usages close to 4 k WATS at max, i think it was that claimed to be 7nm due in Nov 2018 .  The GMO miner B3 33TH/S miner Blokforge has as a per order. but the A9 looks like it can be better.

[philipma1957]

the pangolin  M10 is 33,000 gh at 2145 or 65 watts a th

don't know if it has speed settings like the avalon 841 has


the avalon a9 is 26,500 at 1,720 =  64.9 watts a th


don't know if it has speed settings  but reads 26,500 to 30,000


I would love to set it to 1720 watts  as 3 fit on a 30 amp 240 volt nicely  doing 5160

So

 Avalon .....  A9 ...........................64.9 watts
 Pangolin.... M10 .........................65.0 watts
 Innosilicon. T2 Turbo................... 71.0 watts
 GMO......... forgot the name......... 82.0 watts
 BitMain...... S9 .......................... 100 watts

all per th  


So bitmain keeps selling the cheap s9's til ?

I am looking forward to getting some avalons asap

[Raymond_B]

I wonder if the Avalon will still have the 30 deg C limit? Is that due to only being a single fan?

[Shazam!!!]

I wonder if the Avalon will still have the 30 deg C limit? Is that due to only being a single fan?

I'm not entirely sure if this issue was resolved, but I thought it was firmware related. I've run my 841's all summer at
32°c to 41°c with no issues. Pushed high one day to 42°c and I dropped them to the -1 offset.

Either way, I'm "all in" waiting for this release. Great company!!!

[minefarmbuy]

I'm not entirely sure if this issue was resolved, but I thought it was firmware related. I've run my 841's all summer at
32°c to 41°c with no issues. Pushed high one day to 42°c and I dropped them to the -1 offset.

Either way, I'm "all in" waiting for this release. Great company!!!

Same, up to 40C here ambient with mediocre exhaust still . .  not recommended though. Have to watch my PSU's not my avalons at these temps I'm seeing though summer now.

Fun day for announcements, glad Canaan will be ready for market soon. Was there word on pricing? 26-30th/s is broad range for them though. Speculation on end result and wattage?

Thanks for the break down philipma, always appreciated.

[philipma1957]

They run at 40 c  but drop efficiency  841's do this.

30c  they are more efficient

but -1 or -2 settings help efficiency .

This year we had 1 hot week  and my 841's ran in 92f 95f 97f 94f   days with zero issues ... both the s9's and t1's dropped boards with those temps

[ccgllc]

Interesting to note that 1720 watts is right up against the power limit for running (2) on a 220V 20amp circuit continuouosly. 

20 amps /2 = 10 amps * 80% max = 8 amps * 220V = 1760Watts.

Nice design point!

[philipma1957]

Interesting to note that 1720 watts is right up against the power limit for running (2) on a 220V 20amp circuit continuouosly. 

20 amps /2 = 10 amps * 80% max = 8 amps * 220V = 1760Watts.

Nice design point!

yeah works for 10 amp circuits =rare
20 amp common
30 amp common
50 amp less common

would really like a mini version  13000gh and 850 watts  but that is not going to happen.

[mgoz]

I have seen recent activity on the Avalon 851 firmware and guessing it's probably for this unless they are releasing a slower model first like they did with the 821. Hopefully you'll be able to chain these with the 8's.

So bitmain keeps selling the cheap s9's til ?

I'd guess that they are just waiting to shit on the competition. If they already have something similar or more efficient, they could sell it at 2x's current S9 price and still be cheaper than everyone else.

[NotFuzzyWarm]

Hopefully you'll be able to chain these with the 8's.

Why? Is a bad idea...
As with the 7 & 8's the miners will be using different firmware and unless ran at default settings will no doubt want different Vcore voltage/offset tweaks. Even mixing within 1 family is not a good idea, aside from the tweaks, if you update firmware ALL miners on the controller are updated to it. Trust me: a 721 does not like thinking it just became a 741.-- been there, done that and fortunately was easy to back out of. Same for the 8's. RasPi's are cheap so it is best to just take the most sensible course

[philipma1957]

Why? Is a bad idea...
As with the 7 & 8's the miners will be using different firmware and unless ran at default settings will no doubt want different Vcore voltage/offset tweaks. Even mixing within 1 family is not a good idea, aside from the tweaks, if you update firmware ALL miners on the controller are updated to it. Trust me: a 721 does not like thinking it just became a 741.-- been there, done that and fortunately was easy to back out of. Same for the 8's. RasPi's are cheap so it is best to just take the most sensible course

yeah   3 avalon long chains are close to bullet proof.
that is 12 per rasp pi.
and a rasp pi can be built for under 80 dollars

https://www.amazon.com/CanaKit-Raspberry-Starter-Premium-Black/dp/B07BCC8PK7/ref=sr_1_1_sspa?

so pick up  a few of them.
it only runs into a big expense if you go to a 1200 miner build as  105 at 80 = 8040
if you go to this level  you should consider a server  that does more the 4 usb ports. chains that a rasp pi does.

chains of 5 have a bit more errors then chains of 4 which have a bit more errors then chains of 3 which are close to error free.

[mgoz]

Why? Is a bad idea...

Mainly so I don't have to add a switch, more controllers, cabling, and create more points of failure. I fully understand the issues with upgrading firmware and that under/overclocking settings will apply to all units. I run on default settings and currently mix 821 and 841 units without issues.

[mrb]

https://twitter.com/stevenmosher/status/1024605157902835712

7nm  256 cores per chip  ( 2x)  the 16nm



https://twitter.com/stevenmosher/status/1024605165200932864

chips bring up

[Thetaj]

Looking forward to this

[Steamtyme]

Hmmm.

Now I have to find somewhere to Install another 30 amp circuit.

Can't wait to see if this offers the same flexibility in voltage settings. They've been a lifesaver running the 841 during the hot summer.

Maybe they'll bundle 3 together and sell them like the "moose", call it the "deer". A nice home miner setup.

[minefarmbuy]

Hmmm.

Now I have to find somewhere to Install another 30 amp circuit.

Can't wait to see if this offers the same flexibility in voltage settings. They've been a lifesaver running the 841 during the hot summer.

Maybe they'll bundle 3 together and sell them like the "moose", call it the "deer". A nice home miner setup.

That would be nice, so a 30A 240v will run three? Maybe I'll wait on some upgrades if this is the case.

[mgoz]

so a 30A 240v will run three?

Listed wattage would put you around 21.5 amps for 3 units and 14.3 amps for 2 units.

[philipma1957]

Listed wattage would put you around 21.5 amps for 3 units and 14.3 amps for 2 units.

thus 3 with no issues on a 30 amp  

I could do 9 of these at the solar array or 297th

vs  12x 841's  or 162th

quite a difference.

[minefarmbuy]

thus 3 with no issues on a 30 amp  

I could do 9 of these at the solar array or 297th

vs  12x 841's  or 162th

quite a difference.

Being new miner I was kind of confused Canaan would release the 821 and then the 841 so quickly. If their close to a 33th unit I'll be happy. Not the wife with the added db's.

[KaydenC]

I'm interested to buy this when it launches. But the MOQ and company account restriction is a bummer. If they don't solve this unfortunately my money is going to bitmain.

[Shazam!!!]

I'm interested to buy this when it launches. But the MOQ and company account restriction is a bummer. If they don't solve this unfortunately my money is going to bitmain.

You can get Canaan's products through one of their distributors, like the U.S. based Blokforge, with no MOQ.
I've ordered through them for all my Avalon equipment, and highly recommend them. Great service and
support.

https://blokforge.com/shop/

[minefarmbuy]

You can get Canaan's products through one of their distributors, like the U.S. based Blokforge, with no MOQ.
I've ordered through them for all my Avalon equipment, and highly recommend them. Great service and
support.

https://blokforge.com/shop/

Even I've bought through block forge. ... .. in the past.

Edit: Been drooling at their 841 pricing actually.

[NotFuzzyWarm]

I'm interested to buy this when it launches. But the MOQ and company account restriction is a bummer. If they don't solve this unfortunately my money is going to bitmain.

Um, go to the Canaan.io site and click on Official Partners at the top. It is a listing of all authorized distributors world wide. Using them you get lower shipping costs, no import fees, and most important - full factory warranty, though with Avalons it is unlikely you will ever need the warranty.

[KaydenC]

Um, go to the Canaan.io site and click on Official Partners at the top. It is a listing of all authorized distributors world wide. Using them you get lower shipping costs, no import fees, and most important - full factory warranty, though with Avalons it is unlikely you will ever need the warranty.

I looked at the Asia distributors a month ago. Their websites seem like it wasn't updated in a long time and the prices were horrible.
Blokforge looks good though and they serve malaysia, hopefully it isn't too expensive to ship.

[Thetaj]

I have a question if anyone on here wanna chime in.

at 1800 watts, this miner WILL be very hot. So far Canaan has been cooling all their rigs with just 1 fan. Which works with the 841s but I can testify that it is reaching a sort of limit here now. at 25-30C intake the fans are running 100% all the time and the 841s are only consuming 1300 watts.

Do you guys have any concerns with running 1800 watts on 1 fan of cooling without liquid cooling?

[HagssFIN]

Keep in mind that the miner design will be slightly different and it will be cooled by one 140mm high rpm fan.

[philipma1957]

I have a question if anyone on here wanna chime in.

at 1800 watts, this miner WILL be very hot. So far Canaan has been cooling all their rigs with just 1 fan. Which works with the 841s but I can testify that it is reaching a sort of limit here now. at 25-30C intake the fans are running 100% all the time and the 841s are only consuming 1300 watts.

Do you guys have any concerns with running 1800 watts on 1 fan of cooling without liquid cooling?

yes

it may not be ideal  for a hot climate using air cooling in the farm.

ie your place  may have an issue running them.

they may build more then 1 model.

 maybe same case  with less boards.
maybe shorter case  with same board but less chis

efficiency would still be 60-70 watts a th

one model  would be 18th  other 27th

the 18 does 1170 watts
the 27 does 1755 watts

[ccgllc]

You can get Canaan's products through one of their distributors, like the U.S. based Blokforge, with no MOQ.
I've ordered through them for all my Avalon equipment, and highly recommend them. Great service and
support.

https://blokforge.com/shop/

I 2nd this endorsement.

If you're over in Europe. cryptouniverse is your distributor of choice.

[Thetaj]

I saw the new housing. It looks like it won't be cooled with 1 fan anymore. This may just be the miner to end all other miners all the way til the next halving

[Raymond_B]

I saw the new housing. It looks like it won't be cooled with 1 fan anymore. This may just be the miner to end all other miners all the way til the next halving

This is VERY encouraging!

[rifleman74]

I like it, this may be replacing all of my other miners while doubling my output.

[HagssFIN]

I saw the new housing. It looks like it won't be cooled with 1 fan anymore. This may just be the miner to end all other miners all the way til the next halving

Where did you see it?

[dutchlincoln]

Anyone seen the sem liquid immersion cooling board for the 841 blades?
I am really curious if they make these available for the new 7nm hashboards as well.
IF they do, i definately go for a liquid setup and push the max out of the new 7nm tech. (depending on price naturally...)


Any news about the release date yet?

[philipma1957]

Anyone seen the sem liquid immersion cooling board for the 841 blades?
I am really curious if they make these available for the new 7nm hashboards as well.
IF they do, i definately go for a liquid setup and push the max out of the new 7nm tech. (depending on price naturally...)


Any news about the release date yet?

At least mid Sept more likely Oct

[minefarmbuy]

Anyone seen the sem liquid immersion cooling board for the 841 blades?
I am really curious if they make these available for the new 7nm hashboards as well.
IF they do, i definately go for a liquid setup and push the max out of the new 7nm tech. (depending on price naturally...)


Any news about the release date yet?

I thought people were already customizing liquid cooling like GPUs for these things, not necessarily immersion. Oh course I can't find pictures or a link right now.

[NotFuzzyWarm]

Given the previous Avalon designs and assuming Canaan does the same for the A9 it should be very easy to make cold plates for these to use liquid cooling.

[Halminer]

Where did you see it?

This is the unit they had at their press conference yesterday:

https://imgur.com/Hn44X8i

It looks just like the 841 models, with 1 fan.

They also showed a Litecoin miner and a TV miner.

[HagssFIN]

This is the unit they had at their press conference yesterday:

https://imgur.com/Hn44X8i

It looks just like the 841 models, with 1 fan.

They also showed a Litecoin miner and a TV miner.

Cool, thanks for the image.

That's surprising, I haven't heard about their Litecoin miner before this.

[Thetaj]

Where did you see it?

think I saw it on red's twitter

edit: ok, so the A9 is the same design as the 841s. I mistaken another case for the a9's

[Steamtyme]

Cool, thanks for the image.

That's surprising, I haven't heard about their Litecoin miner before this.

I remember reading about the litecoin miner the same time I believe the CEO started talking about potentially building the TV's last year. They both shared a blurb in the write-ups.

I did inquire about it but never heard anything official. Up until now I hadn't heard of anyone seeing one for sure.

[frodocooper]

Canaan has added the avalon9 branch to their cgminer repository on GitHub. It looks like the first of the A9 series will be called the AvalonMiner 921.

Options to tweak the voltage level ("--avalon9-voltage-level") and the voltage level offset ("--avalon9-voltage-level-offset") remain.

The A921's default temperature target appears to have been bumped up to 97°C. The cutoff temperature remains at 105°C.

The default fan speed percentage remains at 100%.

The OpenWrt firmware for the A9 series appears to be incompatible with earlier AvalonMiner models. This means that it would be not possible to run a mix of different generations on the same Raspberry Pi.

Release binaries for the A921 that incorporate the most recent commits from the avalon9 branch have not been released yet. The latest release binary of the A921's OpenWrt firmware is dated June 28, 2018 at the time of writing. The nexttesting directory is dated September 10, 2018, but is empty at the time of writing. This means that there could yet be further changes to the A921's cgminer code before its first release.

The A921's MM firmware, however, has been released. The latest release, at the time of writing, is dated September 10, 2018, and its changelog simply says:

Code:

Version 9211809-ac35af0

* First MM's firmware for A921

[philipma1957]

Good news  it will be interesting to see how efficient it is.  Maybe a very early October release is in the cards.

[minefarmbuy]

When did they post their 8 series branch LY? Might help speculate a release.

[philipma1957]

When did they post their 8 series branch LY? Might help speculate a release.

It was around for more then 50 days prior to release of 821.

But I think avalon wants to get the a9 out the door asap.  So I hope for early October.

I also hope the A9 lives up to spec.  the 841 were good. the 851 not so good.  but my tests involved 3 841's and 2 851's  small samples to base results on.

[fccs]

I am thinking November honestly.  They may release info about pricing and release dates available for preorder in October though.  That's usually how they do it.  Price is what is going to be most important, canaan makes great miners but price is always the highest.  The competitor is the M10 at the moment which keep in mind also comes with power supply at $1788.  So we will round up and just say $1800-1850 shipped all said and done to your door.  If Canaan stays under $2000 they have this in the bag.  If over $2000, it would be iffy considering by that time the M10 will be 2nd batch and $1600.  I wouldn't be very happy paying say $2300 for essentially a 28-30TH miner with power supply all said and done knowing I could have gotten a M10 miner for most likely $1600-1700 all said and done and be pushing 3 more TH.  So they have to be weary of the price.  Same with the litecoin miner they have coming out.

[minefarmbuy]

Canaan does well with design and pricing and have always been competitive to market. Speculation is really timing of release. I don't recall 821 dates announced till Nov and units not hitting the US till mid/late January'18 or maybe it's the beer right now.

If their stocking a 921/941, just release the 921 now and push 941 to market November. Forget about liquidating old inventory and capitalize on the open market. Price it 1500 and sell out in days. If it's already hitting high 20's/low 30's and is lean. Then they know what their doing and should just do what they do.

[fccs]

Canaan does well with design and pricing and have always been competitive to market. Speculation is really timing of release. I don't recall 821 dates announced till Nov and units not hitting the US till mid/late January'18 or maybe it's the beer right now.

If their stocking a 921/941, just release the 921 now and push 941 to market November. Forget about liquidating old inventory and capitalize on the open market. Price it 1500 and sell out in days. If it's already hitting high 20's/low 30's and is lean. Then they know what their doing and should just do what they do.

Yea Jan, I was first batch buyer for 821 and 841.  They said they are releasing earlier this time the new A9 stuff so I'd assume November December.  If it's under $2000 ill buy it, if it's something redic like $3000 then sadly no lol

[mgoz]

They just added 921 firmware a couple days ago:
https://canaan.io/downloads/software/avalon921/

[DaveF]

I am thinking November honestly.  They may release info about pricing and release dates available for preorder in October though.  That's usually how they do it.  Price is what is going to be most important, canaan makes great miners but price is always the highest.  The competitor is the M10 at the moment which keep in mind also comes with power supply at $1788.  So we will round up and just say $1800-1850 shipped all said and done to your door.  If Canaan stays under $2000 they have this in the bag.  If over $2000, it would be iffy considering by that time the M10 will be 2nd batch and $1600.  I wouldn't be very happy paying say $2300 for essentially a 28-30TH miner with power supply all said and done knowing I could have gotten a M10 miner for most likely $1600-1700 all said and done and be pushing 3 more TH.  So they have to be weary of the price.  Same with the litecoin miner they have coming out.

Canaan has usually started high in price and then dropped. I have been buying them since their 4.0 / 4.1 (2014?) and Bitmain and others have always been cheaper. The Avalons have been better more solid products.

The 1720 watts is going to be an issue. Yes I know 220v is better then 110v but I have a lot of 110v / 20a circuits that are going to be too close to comfort to run at that power.

If I can drop the speed a bit and get it to 1600w at the wall I might look into getting a few.

-Dave

[fccs]

Canaan has usually started high in price and then dropped. I have been buying them since their 4.0 / 4.1 (2014?) and Bitmain and others have always been cheaper. The Avalons have been better more solid products.

The 1720 watts is going to be an issue. Yes I know 220v is better then 110v but I have a lot of 110v / 20a circuits that are going to be too close to comfort to run at that power.

If I can drop the speed a bit and get it to 1600w at the wall I might look into getting a few.

-Dave

That will be ok for winter but once it warms up avalons like to use more power.  I run on 240v so I don't have a issue but yes I see what you are saying.  I'm sure you will be able to undervolt it some and be fine for winter though.  1700w on 110v is fine anyways.  That's right to the 20% safe zone at under 16amps constant.  I believe that's why they made it 1700watts for this reason.

[AniceInovation]

Love to see avalon in the efficiency front, hope they keep their remarkable reliability.

[smracer]

$2000???   

Anything over $800 is too risky, and I am at .05/Kwh total.

If I used my whole 300KW and bought 180 of them it would cost 144K @ $800 ea.  ~ 25 BTC with PSU's and shipping

If they were running right now they would make 5.8 BTC/mo. Maybe 5 BTC by the time they arrive.

Subtract 1.5BTC for power costs and rent, etc leaving 3.5 BTC profit the first month.  After that it will slowly decline each month.

I would be lucky to BTC ROI in 10 months.  That is also figuring Bitcoin will go up and I can use less BTC each month for expenses.

$2000 per unit and it would take years to BTC ROI, maybe never.

[SkyLakeMine]

Canaan has added the avalon9 branch to their cgminer repository on GitHub.

Questions for the group:

1) since miner is based on cgminer I should be able to monitor it with the regular cgminer api commands? Is this correct? e.g. stats command

2) the controller controls several miners? therefore, i cannot send ssh commands? so my only option to restart miner is through the api?

Thanks

[minefarmbuy]

Did you just answer your own questions? Or am I that wasted?

[frodocooper]

1) since miner is based on cgminer I should be able to monitor it with the regular cgminer api commands? Is this correct? e.g. stats command

Yes.

2) the controller controls several miners? therefore, i cannot send ssh commands? so my only option to restart miner is through the api?

Yes, one Controller can control up to 20 miners — i.e., up to five miners on each AUC3, with up to four AUC3s per Controller.

The Controller uses OpenWrt as its operating system, which itself uses Dropbear as its built-in SSH server. Simply configure Dropbear according to your needs (it's enabled by default) through the Controller's web interface and you'll be able to connect to the Controller via SSH.

[ccgllc]

I'm hoping for November, and that the US/China tradewar is over by then.  Otherwise some of us are going to see prices 25% higher than others.

[SkyLakeMine]

1) since miner is based on cgminer I should be able to monitor it with the regular cgminer api commands? Is this correct? e.g. stats command

Yes.

2) the controller controls several miners? therefore, i cannot send ssh commands? so my only option to restart miner is through the api?

Yes, one Controller can control up to 20 miners — i.e., up to five miners on each AUC3, with up to four AUC3s per Controller.

The Controller uses OpenWrt as its operating system, which itself uses Dropbear as its built-in SSH server. Simply configure Dropbear according to your needs (it's enabled by default) through the Controller's web interface and you'll be able to connect to the Controller via SSH.

Thanks!
Canaan is something new to me so I didn't know exactly how the controllers worked.

[minefarmbuy]

If we get lot's of demand hopefully a price break on a large quantity will balance some of the tariff out.

[QuestionQuest]

While you all calculate Avalon, Innosilicion, Halong, WhatsMiner, Holic (for B2B), GMO ... and and and ....

I was waiting for the next step of Bitmain and was every disappointed as I saw the "AntBox" some weeks ago.

While Bitmain is using a shitty 16nm chip and the chip design is beating them almost all for what you get (price).

Now its out 7nm chip with Bitmain chip-design and they will rule the market again  

[philipma1957]

While you all calculate Avalon, Innosilicion, Halong, WhatsMiner, Holic (for B2B), GMO ... and and and ....

I was waiting for the next step of Bitmain and was every disappointed as I saw the "AntBox" some weeks ago.

While Bitmain is using a shitty 16nm chip and the chip design is beating them almost all for what you get (price).

Now its out 7nm chip with Bitmain chip-design and they will rule the market again  

or will ebang's newer model be better.

[AniceInovation]

And specs are out!
20TH/s for 1700W: https://www.cryptouniverse.at/shop/avalonminer-a9-avalon-a9/
Heavily disappointed.

[dutchlincoln]

And specs are out!
20TH/s for 1700W: https://www.cryptouniverse.at/shop/avalonminer-a9-avalon-a9/
Heavily disappointed.

its a laugh and failure compared to competition....

[minefarmbuy]

1800w

[philipma1957]

its a laugh and failure compared to competition....

well  depends  pricing  is not crazy

and the 841 could underclock to get 90 or 91 watts a th.

so if this is 85 watts a th  and you clock it to 17th  getting 75 watts a th

compared to the m10 it is close to but not quite competitive.

an m10 = 34th at 2350 watts

this could be 34 th at  watts 2550 watts

I got really good under clock with the 841.

still it missed  whisper specs by a ton.

I have done a lot of good deals with avalon I need to talk with steve about getting 2 .

[minefarmbuy]

921 more or less efficient than the s9j? Essentially this unit is best compared when looking at T2 or the turbo at 24th/s. Essentially cheap hash to watt or dollar/BTC.

Mid range unit and typical Canaan price to market to sell. You know it's a solid unit and probably the x amount you buy will work a long time with moderate maintenance. If your starting a farm right now it's worthy to consider.  

Edited for typo and to reminder everyone it's 1800w again.

[philipma1957]

921 more or less efficient than the s9j? Essentially this unit is best compared when looking at T2 or the turbo at 24th/s. Essentially cheap hash to watt or dollar/BTC.

Mid range unit and typical Canaan price to market to sell. You know it's a solid unit and probably the x amount you buy will work a long time with moderate maintenance. If your starting a farm right now it's worthy to consider.  

Edited for typo and to reminder everyone it's 1800w again.

So if it is 20 th at 1800 watts it is a hair better then an s-9 j at efficiency on stock settings

It does get about 6th extra compared to the s9j

The real key is can I get the undeclock on it to work as well as it does on the 841.

If I can do that it will drop to 75-80 watts a th at near the 16th mark.

But if it under clocks like the 851 it will not be so good.


I have a lot of info posted on both the 841 and the 851 it shows the 841 to do very well on underclocks and the 851 to not do so well.

[DarkStar_]

Anyone know what fab Canaan uses for their 7nm chips? I wonder if it's a bad 7nm process that's preventing them from gaining higher efficiency/hashrate.

[Steamtyme]

I don't think the 921 is reflective of their best product with 7nm Chips.

Not sure about their overall process but hasn't it been the case going back to at least the 7 series, that they have a x21 model that kinda delivers, but is soon replaced by the x41 which tends to be the best option for that line. Generally being significantly more efficient, powerful or both.

[minefarmbuy]

Agreed, feel though their timing is off.

Again, T2 was in what? March? So 2 quarters too late on the 821? Or are they holding back on their chip? Now I'm getting speculatory (if that's a word). Seems their two designs trend too close together.

Quality of chips? Or Canaan delivering trade mark? Have they always been so conservative in design?

[HagssFIN]

Anyone know what fab Canaan uses for their 7nm chips? I wonder if it's a bad 7nm process that's preventing them from gaining higher efficiency/hashrate.

Canaan uses TSMC.

[yxt]

Canaan uses TSMC.

I can confirm that.

[fccs]

I really like Canaan and heavily support their miners because of the reliability and warranty they offer.  This miner however, I sadly will not be getting.  Very big disappointment, I can't believe they would even release a miner with these specs when they boasted a 30th miner with much much less watt per th.  Guess wait for the 941..

[ccgllc]

I really like Canaan and heavily support their miners because of the reliability and warranty they offer.  This miner however, I sadly will not be getting.  Very big disappointment, I can't believe they would even release a miner with these specs when they boasted a 30th miner with much much less watt per th.  Guess wait for the 941..

Noticed that the 2 year warranty is now a 6 month warranty...

[fccs]

Noticed that the 2 year warranty is now a 6 month warranty...

Did not notice that actually. Upsetting.  We will see.  I plan to be going with the most efficient for this next season.  I have my eyes set on 2 or 3 companies so we will see.

[minefarmbuy]

Canaan's 2 year limited warranty applies to the 921.

[philipma1957]

Canaan's 2 year limited warranty applies to the 921.

Do you have these for sale?

[minefarmbuy]

921? No philip we don't stock. We have a group buy up if people want to join. Though the 20 units MOQ isn't so bad but well out of my capabilities. I put in for one myself but looks like it may take a while to fill as demand is sparce.

With new tariffs international buyers are able to get cheaper units at least regarding Canaan. I'd be happy to plug a reseller but they upset me in another thread. I probably just need my coffee.

[ccgllc]

Canaan's 2 year limited warranty applies to the 921.

From https://canaan.io/product/avalonminer-921/

"AvalonMiner 921 includes a 180-day warranty, starting from the date goods are received. Canaan guarantees a 180 days warranty from the first date you receive the goods. We promise to replace defective or faulty parts with new parts, but mining earnings will not be compensated. Buyers pay inbound shipping and we will pay the return shipping. Please note that we are not responsible for any loss caused by customs delays, losses or charges."

Sounds like 6 months to me...

[minefarmbuy]

Canaan clarified a week or so ago, I think I posted about it here or another thread. Lily is our main contact.

6 month comprehensive warranty, 2 year limited. Now I sound like an insurance agent.

[ccgllc]

Canaan clarified a week or so ago, I think I posted about it here or another thread. Lily is our main contact.

6 month comprehensive warranty, 2 year limited. Now I sound like an insurance agent.

It would be good if they posted that on their website.  Suggest mentioning that to Lily if you get the chance.

ps.  If you happen to be talking to her, please ask her to have someone address the issues posted on the Avalon Management System github forum.

[Blokforge]

It would be good if they posted that on their website.  Suggest mentioning that to Lily if you get the chance.

ps.  If you happen to be talking to her, please ask her to have someone address the issues posted on the Avalon Management System github forum.

haha, we were hoping to get a github response since june, looks like you just posted on our issue.

[ccgllc]

haha, we were hoping to get a github response since june, looks like you just posted on our issue.

Just created a thread in the "mining software" section of bitcointalk.  Perhaps you could join in there for AMS stuff?  (presuming the mods don't purge my post for some reason)