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As it does not really fit into the 7nm thread here I make new topic.

Specs:
Avalon A921
20TH/s -5% ~+10%
1800Watt +0% ~+20%
0,085J/Gigahash
104 x A3206 7nm Asics
-5°C - 30°C

It can be assumed that they are planning to reach target specs discussed here https://bitcointalk.org/index.php?topic=4791241.0 (https://bitcointalk.org/index.php?topic=4791241.0) with A941 Miner.

For now we have the A921 with ~85Watt/TH acc to spec. Market release of this device is end of September.

Becomes a hard item to purchase in the USA  add 27.6%  to price.

Do you know what they will charge for it?

Don't think it will be a problem if you ship through europe or buy from us eg., this should avoid trump taxes I guess.

China pricing is around 950 USD. (not official)

Disappointing announcement. I don't get why price would be more than double the 841. Shouldn't be more than $700 based on existing pricing and 16% increase in efficiency. Majority of new gear that's been coming out is overpriced for existing market. Close to T2Turbo specs and cheaper at least.

Cool news.

I bet that some tinkering with voltage settings should get this A921 efficiency to 0.08J / Ghs and I guess that the A941 should be in the 0.06-0.07 area.

Wait for the 941...

Wow thats garbage, how do they expect to sell something that cant compete with everything else coming out? Especially after announcing 26-30TH at the same wattage less than 2 months ago.

Its also claiming 1700w + 20%? So expect 2000 watts I guess....

That puts efficiency near the 0.10 w/gh range....thats almost as bad as an S9

I wouldn't count on that. When it gets shipped the Country where it was manufactured will matter more than where it is shipped from.

---

Nice to see some hard specs and release dates for their new line. I am more interested in seeing what the 941will do, and if it launches as soon as the 841 did after the 821

1900 x 1.276 = 2424.40 for 2 to the USA  not counting shipping  so 300 more after these new trump fuck you china taxes.

so 2725   get me 40 th at 3400 watts if it meets specs.

the A841 was good
the A851 was not so good.


or buy the m10 wait a month and pay about 1817 x 1.276 = 2318.49 plus shipping  so say 2450

get 34.5 th at 2340 watts   which I know is good caus I have the demo

so  maybe 5.5th more  at 1060 watts more and pay  385 more

speed of delivery may be a little faster then an m10  .

even at 4 cent power  it is a tough unit to buy.

I am going to sit  and not be buying much  gear until after NOV elections  these tariffs are  really tough on price.

yeah, I think too that its a little dissapointing but as usual the Ax41 will be the better machine and high running and probably life up to the advertised specs.

For the moment this device is at least better then Innosilicon. Comparing it with the M10 is another topic - but the issue with the M10 is still no Rohs, no CE and so I guess no FCC certs? At least thats what I last heard. Did anything change @Phil? This means that the M10 is too risky to import in the european market, if still valid.
Also who knows about quality of the M10 and support..

We bought a testing unit of A921 from china, should ship next week. Will update as soon as we have the machine.

Yeah  and you are paying  1800 x 1.17 = 2106 plus shipping say 2350 usd for it.

I got an early demo model so  you can't get a M10 for another 25-30 days maybe all paperwork  will be fixed.

as for the A921 vs the innosilicon

20 th and 1700 watts  for the a921

19.5 th and 1740 watts for the inosilicon on balanced

17.5 th and 1412 watts for the innosilicon on efficiency

price for a921 way lower then the  innosilicon.

Canaan pricing is pretty good, our listing even with the tariff included is reasonable.

$800 w/MOQ of 60 from Canaan. Ship date end of September.

This is a bummer..  27-30th is what we were expecting not 20th at same power usage.  Might as well get 841's for $4-500 at this price.  Esp. after the tariff we are also paying now on top of things.

yeah, pricing is actually cheaper as I posted before, after confirming final specs and pricing with canaan we also posted our A921 listing.
https://www.cryptouniverse.at/shop/avalonminer-a9-avalon-a9/ (https://www.cryptouniverse.at/shop/avalonminer-a9-avalon-a9/)

Im thinking we leave the politics out of the hardware section for now. The real question is how did Avalon miss their own announcements targeted specs by so much?

841 close to specs if room not hot
851 not close to specs

A921 way poorer then the whisper numbers

They didn't. As I recall the initial A9 speeds they postulated were for the 941 version and not the 921.

canaan.io has the 921 list at 1800w as well.

Yep, wait for the 941....

I must have missed that, I thought that was just a generic 9 series announcement

They did the same for the 821/841.

Just received Miner,
short testing shows we can get following at the wall values: (I have to point out that we tested them very shortly ~1-2hours)
voltage -2 = ~1830Watt @20TH/s
voltate 0 = ~2040 @21,1TH/s

more testing to follow asap.


https://img1.picload.org/image/dcrailiw/img_20181009_125251.jpg (https://img1.picload.org/image/dcrailiw/img_20181009_125251.jpg) https://img1.picload.org/image/dcrailpa/img_20181009_125335.jpg (https://img1.picload.org/image/dcrailpa/img_20181009_125335.jpg) https://img1.picload.org/image/dcrailca/img_20181009_125424.jpg (https://img1.picload.org/image/dcrailca/img_20181009_125424.jpg) https://img1.picload.org/image/dcrailci/img_20181009_125441.jpg (https://img1.picload.org/image/dcrailci/img_20181009_125441.jpg)

https://img1.picload.org/image/dcrailcw/img_20181009_125559.jpg (https://img1.picload.org/image/dcrailcw/img_20181009_125559.jpg) https://img1.picload.org/image/dcrailir/img_20181009_125602.jpg (https://img1.picload.org/image/dcrailir/img_20181009_125602.jpg) https://img1.picload.org/image/dcrailil/img_20181009_125430.jpg (https://img1.picload.org/image/dcrailil/img_20181009_125430.jpg)

Looks great Foo (not Phil), let us know the outcome.

These only run on 220 correct, or am I confusing them with a different miner?

Is that a new canaan psu as well? 2k watts?

Very cool, guys :)

I don't have this one :-[

I stopped ordering all miners since I think I may be billed quite a bit for the last few I purchased.

I don't know if or when  but I could owe   trump tax.

I think I beat the deadline one 1 unit by 1 day the t2turbo.

I think on the m10 I owe more then 450 usd.

So for now I wait to see  if I get billed.

Checked your purchase, the T2T is safe from new tariffs by about 20 days but DHL didn't charge the 2.6%, which was returned to you being a solo buy. Rough estimate on that unit is about $40 in duties is all.

lol, I can't read....it was Foo, not you.

Happens.  Looking closer I see it has 10 pcie jacks vs 8 on the 841

Also, whats the packing and sealing like? Standard Canaan with blue "tape" and foam?

That's no Canaan PSU, it's a PSU from one of PSU factory suppliers.

We never received a single Avalon Miner in blue foil. Just standard Canaan box with 2 foam pieces.

They changed the fan from 120mm to 135 or 140mm also the fans pulls now up to 4,9Amps and has no standard 4pin plug but a squared 4 pin plug. The changed fan increased also the max db to like 80-85db.

so, thats 90+w/TH at best...

Great innovation late 2016's... ::)

Pitty its end of 2018 already...  ;D

Yea this unit is very disappointing to say the least.  The hell are they doing.  Get that 30th @ 2000w miner out (which I highly doubt will be those numbers after seeing this one).  At the price point it's basically better to buy 2 841's with power supply than one of these for the same price.. lol

I think they used to ship them out in something like that before mid 2017. All my hardware has shown up the way you describe, but I remember some people wondering about this in the past.


With your tests, what was the ambient temperature?? Since the 8 series we have seen that ambient temperature does play a big factor in their power consumption. That may have contributed to the numbers being higher than people would hope for. As you pointed out the timeframe is short it would be nice to get a 24 hour test done. With the 921 does the voltage offset work; or are you punching that in the command line?


I wouldn't count out the 941, this is generally the model that meets or exceeds specs, but has shown is very temperature dependent.  Also in the long run with that .09 decrease in W/TH over the 841(based on review data) could be the difference between profit and loss. I do still stand by my if you can wait to see what the 941 does then do that.

The 921 in a cold room with a 24 hour test may be better the 20 than 1800 watts.

Need to see what it does over a day in a cold space.

Frankly the M10 is the best of the new gear as of now.

But it is not cheap.

Avalon 841 on a down clock can do 900 watts and 10000 gh

Which is 1800 watts 20th if you have 2.

Blokforge has 841s in stock. At 425 each.

After trump tax this 921 costs more and does close to the same.

https://twitter.com/CanaanInc1/status/1051530938784444416 (https://twitter.com/CanaanInc1/status/1051530938784444416)

Now waiting for specs and prices

Cool,
but I would be very careful with that model name with the US customers. If you know what I mean.

A911  :P

I don't know why Canaan insists on this side bullshit.  We don't care about a lower power unit, that's what a 841 is for.  We want the 30th at 2000watts unit like was mentioned before this came out, efficiency is better than just lower power usage what the hell.

Low power is fine if it's more efficient, correct?

yes it is.  in fact I would love a 800 watt 12th miner

if the A911 is close to this I will get one and review it.

In my house which can use heating from now until may

an a911 using 800 watts and doing 12th would be nice.

@HagssFin
As for A911 as a native New Yorker that lost a relative firefighter on 911 maybe I would dedicate this to him.

Sounds truly like a nice idea, I agree that there is also the tribute side in the name.

Well luckily for us home miners they are bringing that efficiency out in smaller models as well.  

I'd love to throw a couple of these beasty 2000w+ units in my garage year round, it's not as easy to move them into the house in winter to offset my heating bill.

Now I'm eagerly awaiting both announcements. Considering the only other company that announced something like this is looking more like vaporware every day, all eyes are back on Canaan for me atm.

From what I heard the hashrate of Avalon A911 is 18TH/s @ 1440Watt.

So the selling point for the 911 will be it using a longitudinal fan that should be fairly quiet (eg aimed at home use) like the old BM R4's?

Well if it is like the R4 that was pretty quiet when downclocked just a bit.

But 1440 watts and 18000gh is 80 watts th.

I hope with a down clock it can do under 80 watts a th.

I contacted Steve of canaan.io to get a FEW A911'S

I WILL POST BACK.

Low power makes sense for not just home but all miners. If any line can only take x "powerful" units, compared to 2*x "low power" units it's increased sales and farm are happy with full racks. Although the efficiencies need be there. The A911 sounds great still lot's will be waiting on the 941 release.

A lot depends on its down clock ability.

the 841  was great to down clock and you could increase efficiency at low settings

the 851 was great to upclock its best efficiency was at full speed.

so if the A911 is tweaked like the A841  it will be good to down clock

if the A911 is tweaked like the A851 it will be good to up clock

common sense   says to tweak it like the A841.

I am eagerly awaiting a reply from Steve of Cannan to see if they have some for me.

A bit of speculation, I suppose we need pre threads to discuss new model's then move them from speculation to hardware?

Personally I think Canaan is still refining their 7nm chip and we won't see a 941 till Q1 not that in this market is terrible at all. Maybe I'm wrong.

911 is cool, I welcome anything Canaan has. But as a home miner we want our power paid for. Which can be hard at $0.12kwh or more for most. Essentially your looking at a base of $60 profit monthly to cover an average homes power costs. Which is not an easy feat right now, then to ensure it's sustained with diff even more cumbersome.

Good source, specs are confirmed.
https://twitter.com/CanaanInc1/status/1052482268634144768

Question is, do they run on 220 only or 110 too?

Safer to operate at 220V. Most P/S operate on 110V/220V but may not have enough power available at 110V. Also efficiency is degraded at low voltage input.

Winter heater is coming
https://twitter.com/CanaanInc1/status/1053120892249694210

not on the website

and I also asked about the A911  also not available.

So Late October may not be realistic for this gear.  BTW it was 3c this morning or 37f I could use a quiet efficient heater.

lol it is never that cold here - we might hit 30's F once or twice a year.

if this comes out at 18th at 1440 - that would be a bit more effecient than all my s9's are - but depending on price will determine if it really is worth getting - at least that is my opinion. After all, if the unit costs 3-4 times what an s9 costs (I can get s9's delivered with PSU for $508 each) at 1500 to 2000 per A911, it would be cheaper to just get s9's and hit the roi hopefully sooner.

if the 921 is priced at $742/unit this shouldn't breach the 1k mark at all. Canaan is smarter than that.

The A921 was listed in the Canaan.io webshop,
but I noticed that it has now suddenly disappeared.

There is still stock of 921,  at least that what we were told earlier this week. Looks like Canaan is finally cleaning up their web shop a little. Still no PSU from them for the A921.

nope - that would be a great price range. twice the price of an s9 should be the limit, higher price but better hash rate and efficiency should bring it close.

Anyone hear anything on the actual 941 coming out yet?  Canaan lately has been most reasonable with price and reliability but I am still waiting to see a 30th at 2000 watt miner like they promised..

I imagine they are regrouping. They need to deliver an asic to compete with m10s, T3 at this point for industrial market. Plus their next release was anticipated to be the A911, a high efficiency unit..

Yea we need someone to make a damn miner that is actual cost effective already.  You have to be braindead to be spending $3000 for a t3 or $1200++ after the tariff and taxes for a s15 etc.  Buying a miner with a HOPE that the market will go up and you will profit is a risky way of doing business.  This ROI numbers are getting so ridiculous anymore I can't imagine anyone in the state residential wise is buying now.

Correct!

agreed!

Canaan is probably the best manufacturer price wise to drive entry in to the US. They just need to produce the hardware that will compete. Honestly, i started the group buy thread cause we can get a sick deal on the 32T but now that market is dipped we'll see how many we can get. We just can't advertise it. With the tariff it still hurts but is much easier to soak in bulk.

Canaan will have something, I wouldn't want to rush them but I know we're all anxious in the states for something fierce that will priced well. Honestly I think Canaan will pioneer pricing for the US as no one is going to drop over 1.5k on an asic in the US right now unless ROI is extremely attractive.

Yeah the innosilicon which does 2100 watts and 43 th costs over 3k after the tax.  Basically too high.

I have three s9s  that cost me under 1k.  Same hash rate but 2k cheaper.

I have a good deal hosting them I pay 4 cents.  About 130 usd a month .

I can mine them for 15 months at 1950.   So buying new gear is really hard for me to justify.

A911 18th @ 1440w. same pricing as 921.

That's better but still too high.  Guessing we will see some firesales coming in the next few months if BTC stays right around here.

It looks like the A911 is simply an upgraded A851.

According to the A911's spec sheet (https://canaan.io/product/avalonminer-911-limited-qty/), it does not use the A921's 7 nm A3206 chip, but instead uses the same 16 nm A3210M chip that is found in the A851. The A911 simply has 100 more of them, and most likely has an integrated PSU.

Interesting, the pictures in  the 911 spec sheet (https://canaan.io/product/avalonminer-911-limited-qty/) show it as having the usual PCIe jacks for power. Then again, in the past Canaan has not been the best at properly updating info on their site...

Considering it uses the same chips as the A8 series, wonder why they did not stick with the A8xx numbering? Call it a 861, 871, etc...

Those pictures appear to have been copied from their pages of the A8s. Even their page for the A921 is still using placeholder images that depict the A8.


Probably a combination of marketing strategy and the fact that the A911 will most likely follow the A921's form factor.

Marketing it as part of the A9 series allows them to price it higher than they could have if they released it as part of the A8 series. The A8 series and nomenclature have also been discontinued, so I'm guessing that Canaan didn't want to resurrect it for fear of being seen to have regressed in terms of product development.

Regarding the form factor, the A911 appears to have the same dimensions (37.8 cm x 17.0 cm x 15.5 cm) and uses the same fan as the A921, while being 0.8 kg heavier than the A921. So, either Canaan did not take the dimensions and mass of an integrated PSU into account, or the A911 will come with a discrete PSU bundled as part of the package. The latter now seems more likely to me, as the PSU is listed as a separate item on the A911's product page, and the A921's spec sheet also does not include the number of PCIe power connectors, and yet the A921 has ten of those.

---

At the time of writing, it appears that the A911 will have a greater range of voltage level settings (https://github.com/Canaan-Creative/cgminer/commit/365622508d42e116b08fc47e7ee56e340b09d520) and will run at lower clock speeds (https://github.com/Canaan-Creative/cgminer/commit/8e18d5ca0d69abe30e754ef940b50e426971b4ad) compared to the A921 (https://github.com/Canaan-Creative/cgminer/commit/fbc869b61db036615aef5e59bdb5a113be3ca2d0).

Canaan also appears to have two new series of miners in the pipeline — the Avalon LC3 (https://github.com/Canaan-Creative/cgminer/tree/avalonlc3) series and the AllWinner H3 (https://github.com/Canaan-Creative/cgminer-openwrt-packages/commit/7342f361fa445e2af77f3f00e0843f8cdd7f7b4b) series.

A new miner belonging to the A9 series — currently called the A920 (https://github.com/Canaan-Creative/cgminer/commit/1741a5c7b5c1db92e4d77c8c375c23995594e598) — also appears to be in development.

Very cool detailed information frodo, thanks..!!

The LC3 sounds like the litecoin miner that I've heard rumours about.

And the AllWinner.., maybe it is the 'television miner' or the 'mining warmer'?

The Allwinner H3 is apparently not a distinct product from Canaan, but a platform on which Canaan seems to be seeking to build certain products on.

Allwinner is apparently a "fabless SoC developer (https://linux-sunxi.org/Allwinner) based in Zhuhai, in the Guangdong province in China." They develop a series of low-cost, low-power ARM-based SoCs called the sunxi series.

The Allwinner H3 (https://linux-sunxi.org/H3) is actually an SoC featuring a quad-core ARM Cortex-A7 CPU and a Mali-400 MP2 (https://developer.arm.com/products/graphics-and-multimedia/mali-gpus/mali-400-gpu) GPU from ARM. It is part of Allwinner's H series (https://linux-sunxi.org/Allwinner_SoC_Family#.22H.22-Series) of SoCs that are tailored for use in OTT (over-the-top) set-top boxes and other similar home entertainment devices.

The references to sunxi, sunxi_cortexa7, and sunxi_cortexa7_DEVICE_sun8i-h3-orangepi-pc as configuration targets in Canaan's code concerning the Allwinner H3 (https://github.com/Canaan-Creative/cgminer-openwrt-packages/commit/7342f361fa445e2af77f3f00e0843f8cdd7f7b4b) indicate that Canaan is looking to integrate the Allwinner H3 SoC into some of their products. Given that the Allwinner H3 is targeted at home entertainment devices, I think it's safe to assume that Canaan is looking to integrate this SoC into their upcoming TV miner.

Interestingly though, Canaan seems to have integrated this code into new OpenWrt configuration files that reference the A8 (https://github.com/Canaan-Creative/cgminer-openwrt-packages/commit/7342f361fa445e2af77f3f00e0843f8cdd7f7b4b#diff-a995f19f9dcf3f827bfc21eaea0d66fe), the A9 (https://github.com/Canaan-Creative/cgminer-openwrt-packages/commit/7342f361fa445e2af77f3f00e0843f8cdd7f7b4b#diff-5fefa645dca5a888a58925dbfbf07f8f), and the A911 (https://github.com/Canaan-Creative/cgminer-openwrt-packages/commit/7342f361fa445e2af77f3f00e0843f8cdd7f7b4b#diff-ebd6e6c352f5ac2ec4746087b5e3863b). I do not yet know what to make of this.

We'll I hope it's 4k 3D. I'd personally eat that up quick.

Looks like Steve wants to move units, room for more inventory? Canaan seems to have a good plan for product line. I'm happy to hear what their bringing and doing. Thanks fc.

they are doing a flash sale 50 units for 200 each on the a921

to the states  it would be 12760 (tax of 27.6% included) plus shipping it is fairly cheap price for it.

I must had read the email wrong I though it would be on their MOQ. I'll see about adjusting our listing if needed. Thanks philipma

Well just got the email from Blokforge - not sure about others. Edit: Reference to retailers.

This is 399. This includes everything tariffs and taxes - does not specify shipping.

Notably though it may be a typo they call it the 921A, and it says 20+ TH/S @1700W.

Yes, we just sent out corrected mailer before you posted this, it pulled wrong draft.  $349 for 921 @1800w

Sounds good I'll keep my eyes open.

Just checking as it seems there were multiple drafts. Price is even better. Is there a model "A" meeting those specs or where they just typos? Is that an idea of what the recent firmware upgrades can do for the 921 miner?

model a and spec was old draft, the firmware upgrades are for the 8 series at this time.

how fast for this to ship?

I have auc from the 800 series will they work?

shipping in about ten days, planes are pretty full due to xmas so will get out as fast as they get here.  And yes its the same AUC.

Sent a pm to you.

Phil did you buy the A921?  If you did will you review it and show low clocks?

@ yankees  I just ordered 1  A921  I was able to use a cc  got it from blokforge

with shipping to NJ and a small CC fee I spent about $397

Not worth it but  I wanted to see what clocks I can do.

The A851 sucked at underclocks
The A841  was good at underclocks

I will post a review thread as I don't think any USA guy did this yet.

I was curious if the 8 or 9 series had the ability to use AsicBoost?
And if so, if there is an ETA to the release of the MM firmware.
I see in the Avalon 8 thread there was a new OpenWRT and MM released just yesterday, but no change log and not sure if it's optimizations or AB.

They are optimizations to lower power use to .085 J/GH at sacrifice of hashrate. Change log only states "Support low power". I didn't see any new settings in OpenWRT to switch between this mode, but possible there's an option switch you can add to specify mode.

821 hashes at 9 TH/s and 841 9.2 TH/s with default voltage offset of 0 on same controller. I don't have a meter handy to check actual power use, but they are running fine on 1200w HP PSUs and should be around 750-800 watts at wall based on claim. Not sure what voltage offset the .085 J/GH is claimed at, as you can sacrifice even more hashrate at -1 or -2.

We'll it's really nice to drop power use if I'm going to mine through bear with these. Asic boost will be a plus if available.

Might be silly not to upgrade your older avalons at these prices if your planning to mine on.

Pretty sure the 7's and the 9's can have asicboost but the 8's don't have that capability. 

Interesting, what is the thought there on the 8 series? I might have to join a batch to upgrade my two 821's to A9's

What is your source of information on this?

I have one a921 coming soon. I will setup a rasp pi for it today and when I get it I will post clocks

I paid 396 to blokforge I used a cc and will get a 2% rebate so about 388.

That includes shipping and duty tax.

I am really interested in the downclock features.

The a841. Could downclock and be more efficient about 880-900 watts at a 10th setting.

Maybe the a921 can set to 16th and use 1200 watts .  We shall soon see.

Maybe it will use asic boost.

I'd love an official explanation of the new firmware as well as what models can provide AsicBoost now or in the future.
Holding out on upgrading until I have more information.
From what I am seeing there are no "savings" in efficiency just simply a way to use less power, perhaps for home use https://canaan.io/avalonminer-8-series-high-efficiency-firmware-released/

I'd guess that they will probably never support AsicBoost since you have to give up all of your current and future patents to license it. AsicBoost is still patent-pending. Anyone who implements it outside of their licensing  (Bitmain) can potentially face legal action if patent is approved.

Merry Christmas to all.

I received my 921 yesterday and have it setup and running now. Performance is not optimal. At stock settings I get around 15 GHS and DH averages 20%. 11 to 13 GHS and 30% DH if I reduce the power settings. I am using a 2400 watt PS from Parallel Miner. I increased the Voltage Level Offset from the Default: 0 to +1 and now I am getting 18 GHS with DH = 13.774%. Not really the performance what I had hoped for.

Any suggestions on what to try? I am considering trying a different power supply. I can free up two EVGA 1600 watt titaniums to see if that will make a difference. I also have a Blokforge 2000 watt PS but I do not think that is enough to run this alone.

Hey there,

I'm guessing you mean TH/S otherwise that is abysmal.

You may want to check out this thread (https://bitcointalk.org/index.php?topic=5085231.0) by Philipma1957.

He just got one and has been playing around with different settings to acheive an optimal hashrate. There has also been some good info peppered in there by frodocooper about the firmware releases.

Good luck

how long did you run it  15000  is terrible

but it takes like a day  to get to real numbers.

I get 18000 to 18500  with lower volt
I get 19500 to 20000 with stock volt
I get 20500 to 21000 with up volt

so you
1) have bad unit
2) older firmware
3) did not wait long enough to get real readings
4) maybe  the pool you connect has an issue.

I'm not sure on significance of the device hardware errors. Both of mine also report them and I saw as high as 70% during initial boot. While running full hash, they seem to stay around 5-15%. With two, I'm seeing 39.2 TH/s average on pool with default settings. You may want to try to just let it run on default settings for awhile to see what you get. I had issues with the second one in chain initially and it was either from the controller having newer firmware than miners, PSU, changing default settings, or possible damage in shipping as the cases came with dents.

Initially I was using an old P3 2100w PSU that came with an M3 and trying Phil's settings. Thinking it was a power issue, I hooked up a Sorcerer to one board and the P3 to the other. I did this at same time as upgrading firmware and switching back to default settings so not sure what fixed it. I switched back to just the P3 PSU this morning and it's been running fine for a little over an hour. Only other thing with the PSU is that initially I probably had a couple wires off different legs crossed between boards. When I switched back to single PSU, I made sure to use connectors off same legs for each board.

Yes, I meant 15 THS, or 15000 GHS. Running for 12 hours with he +1 and hash rate is 17896 with DH @ 20%. I am not sure how to intepret the DH number. The hover over help says Device Hardware Error, so not a good thing I imagine.

The power supply is unlike any I have used before. I like it. Very small and pretty quiet. A single 220 volt input but it has two breakout boards like. I made sure to keep each hashboard on the same breakout board. One side is 12.6 volts and the other is 12.8 volts. No adjustments that I can see on the PS. Is there any way to see more detail on the 921 stats down to the hash board level?

I do not have much time today so I will let it run on the +1 for the next day or so and try to improve my setup later.

Yes. Instructions for how to do so and how to interpret the various fields and values may be found here (https://bitcointalk.org/index.php?topic=3224256.0#post_chapter2), under the subheading "How to locate and open the CGMiner API Log."

(HagssFIN wrote the guide with the A7 and A8 in mind, but most of it is applicable to the A9 as well.)

Thanks Frodo, that was very helpful. I had read this before but did not think to apply it to the 921 series.

I think I see an issue with one of the hash boards. MW1 is showing much lower numbers of work than the other 3 hash boards. Several single digit numbers, 5 zeros and just low overall when compared to the other hash boards. I pasted this section of my CGMiner API Log below. Hopefully playing with the power supply will lead to a problem diagnosis of either power or hash board.


I am running the latest controller image from October and the latest MM firmware. In case it matters, the Avalon 9xx controller SD Card had a faulty or incompatible image new out of the box. I could not get into the Advanced mode. I flashed the latest image to this SD-Card, but I did not format it first. It came with two partitions and the Win32DiskImager program completed very quickly, in just 10 or 15 seconds.  I am assuming the 2nd partition remains intact as it was from the factory. Should I remove both partitions first or does that really matter?

multiple partitions don't mean much in this case.

but the one board running at much lower numbers is an indication of some thing wrong

my numbers were always  much closer to equal  then your MW1 board is doing.

I suggest getting a different power supply to see if your power supple is doing that.

Are you near New Jersey?

if so I could lend this one to you

https://www.youtube.com/watch?v=aXZQmKtv2-E&t

it runs on 240 volts and will put out 2400 watts.

I can tell you right now  to change your power settings as your results are bad  terrible in fact.

and 12.6volts is high  but 12.8volts is really high.

I would do this setting on the bottom line


see if you get my results

https://bitcointalk.org/index.php?topic=5085231.msg48823226#msg48823226

I used this psu

https://www.youtube.com/watch?v=7s6jmcEptbo

It appears that Canaan fixed the previously non-functioning Voltage Level Offset drop-down menu (https://github.com/Canaan-Creative/luci/commit/bf037f7a4c95c9eec573898766c63332b3f7c590) on October 6, 2018.

The Voltage Level Offset drop-down menu in version 20181011 (https://canaan.io/downloads/software/avalon921/openwrt/20181011/) and later should therefore work properly now. It should no longer be necessary to add the --avalon9-voltage-level-offset command-line option in the More Options field to change the voltage level offset setting.

To check whether the Voltage Level Offset drop-down menu is working, navigate to the Processes page (under Status) and scroll to the bottom. The --avalon9-voltage-level-offset option in the row that is displaying the cgminer process should reflect the selected value from the Voltage Level Offset drop-down menu.

Thanks for info will check on it.

Gave you a merit point.

It does work
these links show it works now

https://i.imgur.com/iT8ZCSw.png

https://i.imgur.com/YBlpFOk.png

And yet another Avalon 9 series model appears in the web shop!  :)

AvalonMiner 920

Link: https://canaan.io/product/avalonminer-920/ (https://canaan.io/product/avalonminer-920/)

Sexy. We'll get a listing up shortly.

Reading the specs, apart from the hashrate and power draw everything else is identical. They do make a mistake in the efficiency though.

921 = 2000/18000  .09 j/GH

920 = 1700/18000 = .094 j/GH

This reminds me of the 741 and 740 models. I think that's what it was. The model ending in 0 were under performing units they sold in the Asian markets. All I really want to see is the 941.

Yeah I'm not sure if there is a typo or few in the A920 technical specs.

So 20th at 2050w is potential max draw?

the a921  appears to be better  it is available  at a much better price then the a920

which means they are having trouble selling the a921's out at the discount price of 349

the a920 is 2x the price of the blowout on the a921

Things are a struggle for avalon as the eff is poor on the a920 or the a921

I won't mention  the name of different company has a 31th machine using 2200 watts  for only 799.

Avalon needs to get a decent item out soon.

I have always supported them and they did not attack other algos with new asics.

So I did get the A921  and managed to set it to do 19.5 th at 1700 watts with a downclock

at 349 + shipping I paid 385 for the a921  that keeps it in line against higher price gear if you have cheap power

get them.

A920 is part of the flash sale, confirmed by Lily.

A921 is out of stock. A851 is the only other available option from Canaan.

New firmware (https://canaan.io/downloads/software/avalon921/) was just released for 921 (and the 920). I wish they were more descriptive in the changelog. All that's noted is:

P set..
maybe a power or performance related parameter?

After running for 24 hours now, I'm thinking it is a power setting. Voltage Level Offset seems to behave as it should now.

---

So after ~34 hours of mining with the new firmware (and adjusting voltage offsets) I can say w/ certainty that the new MM reduces the hashrate. Of the two machines I installed it on, both lost 1.5-2TH/s. I've rolled back to the old firmware and the machines are back at their normal 20TH/s. If I had the machines locally I would test their power consumption with the new firmware running. I'm wondering if the loss of ~1.5TH/s came with a decent reduction in current; can anyone with new firmware running test this and report their findings?

It would be interesting to see if the power efficiency is better with the new firmware.

I would have thought you or philip got demo's, maybe that the 851 or I need more coffee.

@minefarmbuy
My latest demo and review is for the A851

My A841's are gone = really good easy clocking options. that really make better watts per th

My A851 also gone = bad clocking that did not save watts per th

My a921 at the Clifton array.

Since I am driving to Clifton early this Sat morning to  repair bad m10 (fingers crossed)

I could pull the a921 bring it home and test the new firmware.

maybe  it will improve watts per th.

I would love to use the avalon miners but I cringe when looking at their efficiency.

Ja... Out of 6 I purchased only 3 are online at the work farm, 1 at home is offline replaced by a M10 and I have 2 more still in their un-opened boxes.  :-[

Anyone heard anything about a more efficient miner?

Avalon has always lagged in the efficiency department but they are on the cusp of just being an afterthought at this point.

nope no info at all.

if this units drops from 20th to 18th

and watts drop from 2100 to 1600  it would be a nice start.

It would be nice if their fpga firmware was open source as it used to be on github a couple years ago. What is AVA9_P_SET_SS_PARA_EN? Why even bother posting a changelog?

I've tried emailing the contact listed on their downloads page (love@...) but it's returns a Delivery Failure Notification. Do they have a dev contact?

Nothing notable, I honestly thought they would be announcing or taking orders for the elusive 941 by now. I'm only a few months out from having all my Avalons offline and replaced by M10's.

I never did buy anything in the 9 series, the value for me just wasn't there, and by the time it was something else was better. I'm still looking forward to any announcement, one would assume they have something coming, considering they still have a sales team.

I honestly think they are waiting for a market swing up.  Remember their scrypt miner as well?  Never went on sale.. or the 30th 9 series they promised as well.  Not sure what avalon is doing, I usually prefer canaan miners over everything but I skipped buying from them last year due to no point or barely any improvement...

Still great products if your power cost is low and with the prices they have right now canaan is the best deal $/Ths wise. So if you're looking for a cheap build out with a great deal on power cost very viable. Though yes, I think we all had some great hopes on competitive unit last year from canaan.

for me anything in the 80 j/th range is borderline profitable/unprofitable so I am going to be happy when my T15's get in.

Yea nothing I have is profitable anymore. About $0.60 loss a day. Will soak what I can and looks at upgrades soon.

my s9's are borderline - all depends on BTC value. I think if it drops under 3500 I am going to be in the negative.

If the 921's firmware continues to be tweaked/tuned, the power consumption of the 7nm A3206 chips could probably be cut down, making this miner profitable.

I gave up on firmware upgrades. I just tried the latest updates and they bricked both of my units again. cgminer never even starts and doesn't show in process list. I had to revert back to 09-26-2018 firmware.  Nothing after October 2018 works on mine. If they ever do come out with a low power firmware I'm hoping it works on mine but I won't be surprised if it doesn't.

With the A9's it seems that when you upgrade the MM firmware you must also upgrade to the latest OpenWrt controller software. Different versions do not play together.

yeah I wonder if they lost a software guy as the firmware/software for the A851 and the A921 has not been as good as the A841's software/firmware was.

It is a shame as I like working with Avalon quite a bit better then doing anything with bitmain.

They may continue to improve the efficiency through the firmware upgrades. It just won't be enough to really matter unless you already own them and are borderline shutting them down.

They are going to hit a wall eventually, just not sure where they stop. I would think to really compete again they'll need a new chip design.

Borderline shutting them down? Hell, I have 3 offline now and 2 of those are still in their un-opened boxes as the M10's I've been getting blow the doors of the 921's...

Do remember that the A9's are using bleeding-edge 1st-generation 7nm process tech. Given when Canaan did the layouts (middle of 2018) it is a very safe bet that they will need to respin the design to substantially improve on current results.

I'm really hoping that they will be able to catch up with the power efficiency.

Yes you made a wise call there jumping to the M10's. I never dis grab a 9 series even after the price drops, just never made sense with what was coming out.

I can't remember, were they the first production of the 7nm? I did start to wonder a while ago if they aren't working on a new design and that's why we haven't seen a better model yet. I do keep checking in hoping to see something awesome from them to get excited about.

I gave up on this unit  I have it set that it does about 1800 watts and 19th

I think -1   there has been new firmware  but I do not think anyone has been able to get it to do much better at the watts per th level.

Does anyone have this  doing 80 watts a th at any setting?  If so please post screenshots  and wattmeter.

On the good side if power is cheap it is really reliable  at 1800 watts and 19th.

The very first post states the speed of the unit....

Specs:
Avalon A921
20TH/s -5% ~+10%

And for speed/power usage when tweaking the A921, refer to here (https://bitcointalk.org/index.php?topic=5085231.msg49168363#msg49168363) where I had ran tests on it. Also has some 741 & 841 info in there.