Avalon 6 Vs Antminer S7, which one you will choose?

[VirosaGITS]

sorry guys, on avalon6S, my major design goal is to lower the cost and keep it stable & reliable at the same time.

look, most of your attention is price, price, price. how can i waste any more cents on user expreiences? 

ng

Only some few ones shout price price price.

Look, there are 3 pages following mentioned "price " dozens of times. So I'm right.


The picture you got is a prototype. Final product will be natural steel color, not painted.

About noise, I just did a short test in my lab. It's ~70db @ 1M, full fan speed (~3800rpm), include
a noisy server PSU. Air in-take temp is ~ 30C, board temp is ~ 72C. Will significantly lower the
noise by lower the fan rpm, but the ambient temperature should be low.

In this design, I leave the fan out of the case, in order to change the fan fast. This is a very important feature for large facilities.

About price and delivery plan, I will not announce business information here. But I think there will no long wait.

Thanks for the update!  That is great to hear not long.  A lot of us are excited to hear more about it.

Happy to see you reading the forum .

And there will be fan speed control! Thats just great, it might be the next miner i will start picking up if its easier to chew down that forking over 2k for a S7. Sound like it will be possible to make it run pretty quiet, though it will not be as quiet as the 4.1

I hope we'll be able to fit 2 fans on it too.

[notlist3d]

sorry guys, on avalon6S, my major design goal is to lower the cost and keep it stable & reliable at the same time.

look, most of your attention is price, price, price. how can i waste any more cents on user expreiences? 

ng

Only some few ones shout price price price.

Look, there are 3 pages following mentioned "price " dozens of times. So I'm right.


The picture you got is a prototype. Final product will be natural steel color, not painted.

About noise, I just did a short test in my lab. It's ~70db @ 1M, full fan speed (~3800rpm), include
a noisy server PSU. Air in-take temp is ~ 30C, board temp is ~ 72C. Will significantly lower the
noise by lower the fan rpm, but the ambient temperature should be low.

In this design, I leave the fan out of the case, in order to change the fan fast. This is a very important feature for large facilities.

About price and delivery plan, I will not announce business information here. But I think there will no long wait.

Hmm 70db is pretty loud, but the fan can be changed? Is it a dual fan system or can I do a push and pull system to lower noise?

It sounds like you can but you should have a low ambient.  It looks like they put a goo amount of hashing into this machine.

So likely we will have to have someone play with one and let us know how it handles low RPM in certain ambiant temps.

[philipma1957]

70db is dissapointing . when i get one i will see if i can tweak it.

i am willing to try 3000gh rather then 3600 my hope would be to get better hash per watt.

if i get it do 800 watts and 55db i would be happy with it.

[VirosaGITS]

70db is dissapointing . when i get one i will see if i can tweak it.

i am willing to try 3000gh rather then 3600 my hope would be to get better hash per watt.

if i get it do 800 watts and 55db i would be happy with it.

Same here definitely going to see if the back side (where the pci cables plug in) silver mounts allow screws, if so push and pull with quiet fans and lowered to keep it cool and quiet.

Well full speed seem to be for 38C intake.

Unless you run it in a sauna, you should be able to lower the fan speed considerably. Here in winter i can feed it 0~10C intake so i'm actually pretty excited about this.

[notlist3d]

70db is dissapointing . when i get one i will see if i can tweak it.

i am willing to try 3000gh rather then 3600 my hope would be to get better hash per watt.

if i get it do 800 watts and 55db i would be happy with it.

Same here definitely going to see if the back side (where the pci cables plug in) silver mounts allow screws, if so push and pull with quiet fans and lowered to keep it cool and quiet.

Well full speed seem to be for 38C intake.

Unless you run it in a sauna, you should be able to lower the fan speed considerably. Here in winter i can feed it 0~10C intake so i'm actually pretty excited about this.

I'm not to worried anymore about noise.  Which is kinda nice to not be a factor for me like it once was.

For me it's all about release date and price.  I hope the price is good.  Hopefully we find out more on that front soon.

[Blockhunter]

70db is dissapointing . when i get one i will see if i can tweak it.

i am willing to try 3000gh rather then 3600 my hope would be to get better hash per watt.

if i get it do 800 watts and 55db i would be happy with it.

most of the noise is caused by the server PSU if you use say corsair gold series type it would be much quitter no need to tweek :p

[philipma1957]

70db is dissapointing . when i get one i will see if i can tweak it.

i am willing to try 3000gh rather then 3600 my hope would be to get better hash per watt.

if i get it do 800 watts and 55db i would be happy with it.

most of the noise is caused by the server PSU if you use say corsair gold series type it would be much quitter no need to tweek :p

"tweak I must" said phil to the blockhunter " for tweaking be in my genes".


Got to toy with the gear.

[Blockhunter]

70db is dissapointing . when i get one i will see if i can tweak it.

i am willing to try 3000gh rather then 3600 my hope would be to get better hash per watt.

if i get it do 800 watts and 55db i would be happy with it.

most of the noise is caused by the server PSU if you use say corsair gold series type it would be much quitter no need to tweek :p

"tweak I must" said phil to the blockhunter " for tweaking be in my genes".


Got to toy with the gear.

hehe yes understood.

I was just noting that he tested with noisy server PSU so better noise results are expected. The home version even tho more pricey is what I would be interested in my dreams of server farm left when the pre- order era took us all for a ride

[QuintLeo]

Well full speed seem to be for 38C intake.

Unless you run it in a sauna

 I must live in a sauna in the summertime - 38C is only about 94F and we see higher temps than that routinely here about every summer, and often with high humidity.

 I'm really looking forward to the MUCH drier climate in Central Washington when I get to do my planned move....

[philipma1957]

70db is dissapointing . when i get one i will see if i can tweak it.

i am willing to try 3000gh rather then 3600 my hope would be to get better hash per watt.

if i get it do 800 watts and 55db i would be happy with it.

most of the noise is caused by the server PSU if you use say corsair gold series type it would be much quitter no need to tweek :p

"tweak I must" said phil to the blockhunter " for tweaking be in my genes".


Got to toy with the gear.

Exactly, fan modding is honestly a passion mixing that with under clocking I love (and need) to get all my miners quiet or my wife will kill me.

my one s-7 is well controlled sound wise. 

I can run 3 s-7's with good sound control.

 especially with a slight underclock freq 581 and fans at 30

[VirosaGITS]

Well full speed seem to be for 38C intake.

Unless you run it in a sauna

 I must live in a sauna in the summertime - 38C is only about 94F and we see higher temps than that routinely here about every summer, and often with high humidity.

 I'm really looking forward to the MUCH drier climate in Central Washington when I get to do my planned move....

We hit 40C+ here regularly during summer, with humidex, but the machines is only affected by the actual temperature, so even though it was nearly 50c with humidex inside my apartment, the machines were still running fine although at full blast with the fans.

So there should not be many places in the north where its all that hot for a major part of the year.

[notlist3d]

Looks like we have a confirmed order:

sorry, went to beijing to meet avalon and bitmain for 3 days and donot visit forum during this time
...

Hi pcfli,

what news do you have from Avalon?

Regards.

spiccioli

As a matter of fact, i have ordered 3P hashrate from avalon, they told me they will ship them to me on 31th Oct. but i think it is hard for them to keep the word, as their chip still on the way to factory until yesterday.
however, it is not easy to sell avalon miner to your guys because they use one raspberrypi to control 60 unit miner=60*3.5=210T. so i prefer to sell those avalon as cloud mining hashrate.

So very interesting he will try to do "cloud".   I'm not sure I follow the part on not being easy to sell as we all know a RPI would be 35 bucks to buy and control one or two easy that hes hosting.

Just noticed he has date they will send... if true this means avalon should be public pretty soon I would think.  But they might fill orders of big datacenters like this first.

[philipma1957]

I would like to get one do a nice  photo layout on it.  Plus do a good operating guide

If it is like the 4.1 it will under clock and be far more power efficient.

I also wonder what rasp pi it uses..  I no longer have the model b I have the newest model which is far more powerful but did not run the 4.1

[sidehack]

If I believe the pictures I saw of an Avalon6 PCB, it looks to be an 18x2 unregulated string per board and two boards per machine, top-cooling ASICs. If that's the case, we're looking at nominal about 50GH per ASIC. I believe the software auto-adjusts clocking to optimize hashrate for the power available, but unless I'm missing something there won't be inherent undervolting like the 4.1 had which means the efficiency is set without external intervention.

[mavericklm]

Cooling fan  12038, current min: 1.6A ,Max:2.8A

Here is my dislike! that crap fan that bitmain uses??? WTF!!!!!!!!!!!

Hurry up with the price!

[RichBC]

If I believe the pictures I saw of an Avalon6 PCB, it looks to be an 18x2 unregulated string per board and two boards per machine, top-cooling ASICs. If that's the case, we're looking at nominal about 50GH per ASIC. I believe the software auto-adjusts clocking to optimize hashrate for the power available, but unless I'm missing something there won't be inherent undervolting like the 4.1 had which means the efficiency is set without external intervention.

Sounds like a good concept, if I am understanding what you are saying? Does this means you only need to adjust the voltage up or down and the system then tunes for the optimum Frequency / HW error rate?

[Finksy]

Does this means you only need to adjust the voltage up or down

Even if the system does auto-adjust frequency, it's easier said than done.  Not a ton of PSU options out there to under-volt that I've seen? Especially for the ~1000W this miner will likely require.

[sidehack]

Yeah, it's actually not a good concept if you like undervolting. How many people have pencil-modded their S1s and everything else? Compare that to successful undervolts on S5. It ain't easy at all.

[RichBC]

Yeah, it's actually not a good concept if you like undervolting. How many people have pencil-modded their S1s and everything else? Compare that to successful undervolts on S5. It ain't easy at all.

I have spent most of my time since I recently discovered Mining undervolting as I have to because of working with out of date miners and high electricity cost. Although with the recent hike in BTC I have been turning the volts up. 

I succesfully undervolted an S5 both by obtaining PSU's that can be adjusted down to 9V and by using additional Buck Converters on the output of a 12V Server PSU. To be honest taken overall I found it easier than modifying resistor values on an S1 or S3 as all the work was external to the miner, and there is no escaping the simplicity & efficiency of a string design.

But returning to the Avalon6 I was merely commenting that it was perhaps handy that the firmware optimises the frequency as you turn the voltage down?

Rich

[sidehack]

The Avalon4.1 I believe had an auto-tuning option like that. I saw mention on the Avalon6 wiki page ("Support automatically optimize frequency, no need to overclock manually.") which implies the same feature will exist for this machine as well.

What was the material cost you had in getting bucks to power an S5? Modifying resistors on an S1 is probably a fair bit cheaper.