Topic: Review of Avalon-4.1 - page 5. (Read 11124 times)

Absolutely, the incredibly low fan profile even overcools so you can cap fan speeds even lower.

spent a long time doing customs as the settings

found a very good setting


849 gh  dh  errors  = 0.565%   I am using 492 watts = .58 watts per gh


I like this setting.  If I swap this with the pair of  s-3's at my buddies office.

 I get the same hash rate and drop power from 680 to 492 watts.





 here are the settings

    yes unless you swap out one s-3 fan put in the silverstone 141 as the pull fan and downclock to freq 193

   that  gives you about 380gh and the  s-3 uses around  300 watts.

the 2 in my friends office  are clocked to freq 212  have the stock fans and are a bit noisy.

 I am getting 830-850 gh using 680 watts. that is .8 watts a gh for my current s-3's

   So 1 of these will do more gh  use less watts and be quieter.

   I will set it to do 900gh use 560 watts.  that will be .61 watts a gh for the a-4.1

I will sell off the 2 s-3's cheap on ebay.  It will work because he spends 2.4 cents a kwatt on power.

Is this quieter then the S3s?

When you go under 340 for frequency strange things happen just try 339 and you will see....
I think the key here is auto volts and why we have a discrepancy with results...my pool results from 6875 are after 2 hours reporting the same hashrate on miner and pool 431W rock solid as originally the miner starts around 810 and drops to 793ish also after 24 hours roughly the same
when I edited the ECO mode, its still using auto volts which from what I see is the upper (max) voltage limit...give it a whirl by editing your eco file or change auto volts to true...and remember these units throttle power on a cycle

Right now Im using 400:370:340 with 7250 less errors more wattage...

This is truly quieter then the sp20  not really close.  I have sp20s at 6% fan speed  and it is quieter then the s-5 delta fan  mod at freq 312. It looks better then the s-5.

But it is costly and is more of a show piece item for your office. For me I  will use the one piece to replace 2 s-3's at my friends office.

I also believe  as a concept piece for space heating it is a winner.

A smart company that builds space heaters need to look into this tech and consider making a Delonghi miner/space heater.

http://www.delonghi.com/en-us/products/comfort/portable-heating


I will continue testing the custom part of miner config's

so custom and 340 at  7250 volts gives best dh rate

next is 330  = 20.15gh a chip at 7000 volts




I would have thought I would have a higher hashrate but dh is really low

I like the form factor of these a lot more than the S5, but I just don't see how this can be competitive vs the S5 or the SP20. A three-pack of these is BTC6.39, or $1405.80 + shipping. Meanwhile three S5's are $1110 + shipping and three SP20s is $1195 with free shipping.
The only possible benefit I can see is lower noise vs the others, but then if you downclock the SP20 to Avalon4 levels you can run at 10% fan where noise isn't a big deal either, plus the SP20s are a good bit cheaper.

so on custom   340 for freq  7250 for volts and false for auto volts looks rock solid

this is easy but it appears that custom setup does not give the same watts per gh that eco does.




 Choice of modes I picked custom




on custom I set freq 340 - 20.75 gh = 800gh  volts = 7250------- I used false for auto volts--- I go to see dh errors and decide if volts are good



this is getting really good error numbers

post above shows a simple way to set custom but i underpowered it so I set same freq 340 = 20.75gh per chip = 800 gh and gave more power

better results  with added power 7125 vs 7000





less errors higher hash

okay read macgyver007 thread and reply to me here.

I decide to burn a second sdcd card.  set it checked it it works.  now I can really play with this machine and just pop in the second card to my rasp pi if I truly trash the settings.

I realize the custom settings are easy and I did this twist.

1 freq number only 340 which is 20.75ghs or should be about 800gh




it works but has lot of errors and needs more then 0.7000 volts

nice review...lets see how much better efficiency we can get...sorry for not responding sooner
For a better ECO mode use 340 with 6875 this gives me 431W according to APC
more details here:https://bitcointalksearch.org/topic/de-classified-avalon-41-miner-review-951897

yeah the price point here  is high also add in a rasp pi.

when you figure this out it is viable for a 'free' power guy that absolutely needs quiet.

My home now has
1 Avalon-4.1
1 s-5
9 sp20's

I can't use  avalon-4.1  in bulk purchase my power costs are too high.


I can use the sp20 in bulk as I can manage  the noise.

I can use the 1 avalon-4.1 in my friends office as it will replace the pair of s-1's I have had running in his place since July.
 Power is 2.4 cents a kwatt in his office.

 I can run the  new gear for 9 months or more. Sell the s-3's at a cheap price on ebay. Making the a-4 a natural upgrade for me.  But it is a 1 unit upgrade not a 9 unit upgrade.
I look at this gear as a specialty item. Not right for everyone.

Biggest flaw is price.

I can get it to .61 watts at 830gh
I can run it at 500gh and do 244 watts that is really efficient really quiet. but costly.

Still like it a lot.

Excellent review again Philipma! Your SP20 review is what sold me. I would sell my SP20s and convert to these new Avalons in a heart beat if the price was better. I currently move my SP20s in and out of different rooms via a mobile shelving unit to deal with the noise. Even with a large group buy the price is not competitive. Price needs to come down before I'd consider making the switch.

cablevison is due any minute  ( 11-2 ) will be signing off for a while

intake 71f




rasp pi truly cooled down



this is a vey messy spare bedroom



sound at 45db is wrong as wife was using a vacuum cleaner in the kitchen above me when I took shot

custom setting

600 watts 933gh = 0.643


Chip Frequency(Default: 450:390:370)                my number  420:390:360

Chip Voltage(Default for 4.0: 8125, for 4.1: 8000)  my number 7700

settled in at 7675 with automatic voltage set to  true






full size
http://imageshack.com/a/img631/1548/wi7J7b.png

 Thanks oh I figured out why I had 2 devices.  I had plugged in two cables to the a-4  one is all that is needed the second one allows a link to the next unit.  I now have 1 device





fullsize

http://imageshack.com/a/img673/7811/sGByz7.png

Thanks Philipma
Your review are always awesome.

Im glad I manage to get you one.   

Cheer

Valkir

Found this

https://en.bitcoin.it/wiki/Avalon4



MM Ver   Chip Freq   Voltage   Hashrate   Power usage
4.0     420:390:360    8000   980G   594Watt
4.0     450:390:370    8125   1T           640Watt
4.0     450:400:390    8250   1.1T           655Watt
4.1     420:390:360    7625   980G   542Watt >>>>>>>>>>>>>>>>>>> set my avalon to this
4.1     450:390:370    8000   1T           600Watt
4.1     500:450:430    8125   1.14T   710Watt
4.1     550:500:450    8250   1.25T   900Watt
4.1     570:510:470    8375   1.3T       990Watt


now doing   964 gh
asic freg =  24.42
asic volts = 0.7625

watts at kwatt meter = 625
eff is                           0.648 watts per gh

needs more tweaking .  I did see something my firmware is

411501-08e45110


this is not the newest firmware.

I like using the rasp pi I can have 3 or 4 flashed firmwares and switch them up


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also I have 2 devices  and that is wrong >>>>> fixed it only need 1 cable plugged into the a-4.1 and the rasp pi second is for 2nd a-4.1
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Avalon Devices
Device   Enabled   Status   Temperature©   GHSav   GHS5s   GHS1m   GHS5m   GHS15m   LastValidWork


ASC0-AV4-0
Y
Alive
0
0.00
0.00
0.00
0.00
0.00
Wed Feb 11 11:49:09 2015  >>>>>>>>>>>>>>>>>  does not belong


ASC1-AV4-1
Y
Alive
43
964.65
978.72
965.81
859.23
503.92
Wed Feb 11 11:49:09 2015 >>>>>>>>>>>>>>>>>>>> belongs

 370:310:290 = 20.39 0.568 watts per gh this is freq 20.39

 this is doing 772 gh at 439 watts  silly quiet under 40db

dropped off to 762 gh at 439 watts  still that is 0.576 watts so  quiet I am really impressed.

 If someone built a case you could house 2 of these and run them off a 1000 watt psu

cheap low cost no. well built really quiet yes .  you know people that say I want to support the network does not matter if I make lots of money.  this is your miner
the setting above is pretty efficient. the unit is really quiet with no mods. This allows you to balance the pool choice.

I can run kano's pool ck's pool and f2p pool. supports ck and kano gets steady money.  allows me a shot at a block. lastly the wife won't hear it make noise.




full size link below

http://imageshack.com/a/img661/7902/xNvGBL.png