Topic: Avalon 851 on its way. - page 3. (Read 1588 times)

Simple solutions to simple problems.

That's most likely because the Controller in your existing chain of 841s is running pre-851 software.

The 841s and the 851s should work on a Controller that is running post-851 software, as the Controller software for the 851 seems to have retained the code needed to support the 841s.

I don't mind not having the built in psu  which would have been a 861  I found info on it.

The 851 simply appears  to hash  at 14.5 th and 1450 watts

It did not work chained to the   841 chain

but the new rasp pi arrives today should have this running soon

Looking forward to the test runs.

Not sure how far out we are from an A9, these are just an optimized version of the 841, and from what you have on the label it looks like just that. I wonder if the voltage settings will work the same as they did for the 841 for this model.

I don't think Canaan will be going the integrated PSU route again, sounds like the 761's were a disaster to deal with. Personally I'd rather source my own PSU anyways.

Waiting for a new rasp pi to arrive.

and looking for a link to load it with the software.

found link

https://github.com/Canaan-Creative/avalon8-docs/wiki/AvalonMiner-851-firmware-downloads

No just the miner.

So I ordered a rasp pi as it does not seem to work with  the rasp pi for the 841.

I have a dongle/auc3  and wires on hand.  I will post on this in a bit.

So no attached psu?

It arrived it looks exactly like the 841

specs on label are different

14500 gh

1450 watts.

I am still running around hard  but right now I will bring 1 of the 2 to the solar array and simply daisy chain it to the 3 841's

Yea, I was hoping to see a fully assembled one get the general idea though. Can't wait for pictures from philip.

We've requested a 851 to blog about, still though little response all around from manufacturers. Since we're not doing technical reviews it will be more of a marketing role and fall on my plate. I do appreciate Lily being responsive she's been great to communicate with.

Yes.

They sold it in Chinese and South Korean market only.

I have a picture of it in my thread about my trip in Beijing and visiting Canaan.

It just got in to nyc airport .

Due Monday .

New gear is always fun.

@ yankees

I don't know how to answer your question

But the avalon  company and I exchange emails pms and have  a relationship.

I also have a relationship with Halong and Yoshi  with the T1's.

Bitmain and I do not have an email or pm relationship.

Innosilicon  and I do not have an email or pm relationship.

So I am naturally  going to favor companies that will work with me and treat me like a valued customer.

If you are a newcomer and don't know any of the companies  a lot depends on your pocket's depth.

also the warranty service has meaning if you have a small setup.  So avalon's 2 year warranty is good if you have under 20 pieces.

If you want to open  a 200 unit farm  bitmain's gear is cheap  and you can buy 220 s9's   for under 120,000  so the 20 are your spares

But a lot of this is a moot point  since new gear will arrive  from  more then 3 companies.

All by Dec 2018

So which of the three do you prefer?

No  it is a combination  of multiple factors.

psu
miner
load on psu  ie  1500 watts on a 1600 watt psu   is worse then  1500 watts on a 2400 psu.

I also  set the psu's  I tested  next to an ac vent  so that the psu  was ac cooled  in every case with every miner efficiency was better.

My tests with:

s9
avalon 841
Halong T1

with

2400 watt delta    plat
2500 watt hp        Gld
1500 watt corsair  tit
avalon scorcer
bitmain apw3 +
Halong
dell plat

all show ac cooling the psu make it more efficient
all show heat make  the power draw higher.

and the s9  is  less affected by heat as to power draw
the halong T1 has  good selections  of speed to avoid power draw

but that both of the above are more inclined  to drop boards when ambient air temps go over 95f

the avalon 841's  never ever drop boards  even when NJ had a heat wave in early July  and the ambient air  was  


 June 27  73f
>  
>  June 28  88f
>  
>  June 29  90f
>  
>  June 30  95f
>  
>  July   1    97f
>  
>  July   2    95f
>  
>  July   3    90f
>  
>  July   4    86f
>  
>  July   5    88f
>  
>  July   6    82f

Data above is from  https://www.timeanddate.com/weather/usa/freehold/historic?month=6&year=2018

Our setup is in this converted barn
I developed a heat shielding method  and the two 1600cfm fans keep the air temps 3 or 4 f lower

So that  loft space  was at 92  when it was 97  both the halongs and the s9's drop boards at those temps

The apw5 is better and 2600w and the apw7 is pretty good with heat creep now too.

i know but avalons are veryyyyy sensitive. s9 not so hard.

i made efficiency  tests with PSUS and rising ambient temp, PSU almost make no difference in efficiency..

canaan sorcerer psu and bitmains..not much difference bit apw3++ stops working at certain temperature. APW7 can withstand higher temperature

--> efficiency with rising temp: its all about the miner

IIRC  this one has  the psu built in  somewhat like the  Innosilcion


 Edit not true.  it looks just like the 841 in every way but can go to about 14.8th using more power.

Cool to hear these news, can't wait for you to receive it

The 851 seems to be 14.5 th at 1350 watts.  edit more like 1550 watts

All lower powered gear below
It looks like innosilicon drops its gear first at 70-75 watts a th. In 2 weeks.

Then pangolin whatsminer m10 due in sept does 65-70 watts a th.

Then gmo at 82 watts in October -   This was a long preorder and buyers will hurt on this one.

Then the a9 maybe nov.   Doing about 65 watts a th.

One question where is the new bitmain?

Yep, waiting this time around.  Those 821's are good but not that good.   7nm needs to be priced right.