Topic: Review of Avalon-4.1 (Read 11128 times)

I bumped this  so that I can find it. I am going to bump and lock some threads in hardware please bear with it as it will be on the first page for a day extra thanks

The sound levels really are amazing.  Even posting about it I don't think most will understand how quiet they are.

I tried a youtube video, but it did not do it justice.   No other miner comes close to it.

yeah that slight underclock number works well. I am doing a deeper under clock at

FREQ   325:275:250

VOLTS  7000

I get 1420 for 2 machines and use 720 watts

This would be  710gh and 360 watts for 1 machine

  0.507 watts a gh

I am very happy with sound levels

Been running at

Chip Freq------------Voltage------
420:390:360_______   7625_____

Getting a consistent 950 Gh/s with peaks around 1.1 Th/s and bottoms generally just under 800 Gh/s.  Very pleased just wish they could come down a little on the price!

Thank you here is the clocking chart:


Chip Freq------------Voltage------Hashrate/Ghs----Power Usage/W-------240 volt hash rate-----120volt hashrate/watts

375:300:275_______   7000_____   800____________   419 ------------------------------1577--------------1561/869
375:350:300_______   7500_____   866____________   457-------------------------------1725--------------1707/966
420:390:360_______   7625_____   980____________   542-------------------------------1906--------------1906/1142
450:390:370_______   8000_____   1000___________   600-------------------------------2xxx---------------1983/1250------I used 7875 for volts
500:450:430_______   8125_____   1140___________   710


550:500:450_______   8250_____   1250___________   800
570:510:470_______   8375_____   1300___________   900


I will test them up to 500:450:430  using an evga 1600p2 both with 240 volts and 120 volts .

I will run 1 hour on each setting doing the 240 volts first.

 First 240volt  test shows 240 volts gives very close to 800 gh it gives    1577/2 = 788.5 gh
 First 120 volt test shows 120 volts gives much less then 800gh it gives  1561/2 = 780.5 gh  
 also watts are 869 not 2 x 419 =838  but I am running a fan and a rasp pi say 10 watts or maybe 15 watts  so 854 vs 838. all in all under 5% from the charts numbers.  remember I am using a very good plat psu.

Philip,
FYI EHash just now posted a more thorough over/under volting guide on their website here: https://ehash.com/product/avalon4-module-1t/

   that little pc looks like a nice piece of gear.

Is nice of avalon getting some reduced and free miners of them not bad at all. Nice watt to gh ratio you got on your power down and clock speed to. No doubt am sure their will be sweet factors for Summer and winter times too. Just matter of finding the right ones at right times and making good with it thought out the year. Use to mine massively last eyar and years before but now ratio on mining in UK sucks so sticking to other projects am setting up and working on an maybe in the future if mining and btc goes up again might start to buy some more equipment.

I would need something that gives a nice 10 to 15TH in power and uses next to no energy.

If you want new pi might want to consider the new  ODROID-XU3 Their about $170 but stupidly insane with 8 cores. That is 2 quad core cpus in that too.

 Samsung Exynos5422 Cortex™-A15 2.0Ghz quad core and Cortex™-A7 quad core CPUs
* Mali-T628 MP6(OpenGL ES 3.0/2.0/1.1 and OpenCL 1.1 Full profile)
* 2Gbyte LPDDR3 RAM at 933MHz (14.9GB/s memory bandwidth) PoP stacked
* eMMC5.0 HS400 Flash Storage
* USB 3.0 Host x 1, USB 3.0 OTG x 1, USB 2.0 Host x 4
* HDMI 1.4a and DisplayPort1.1 for display
* Integrated power consumption monitoring tool

http://hardkernel.com/main/products/prdt_info.php?g_code=G140448267127

Should save you having to by more Pi's in the future just waiting on the price to maybe come down a little more and have stock in to buy too. videos of them in action and working is some leap ahead for Pi systems.

thank you

I just started my first heavy down clock test
of 3 on a rasp pi.

 the three do 1668 at 757 watts =0.453 watts per gh
this is with a hi end evga 1600 p2 1600 watts plat psu.
I do not need to go this low in my clocking but in the summer the ability to drop

from 1350 watts  to 757 watts  and to better watts per gh from 0.54 to 0.45 makes these nice.

 my psu can do 1500 watts as a max with 100 watt safety margin.
It was costly but I do a lot of testing on my dime for the community.

Avalon gave me 1 miner for free
Avalon sold me 1 miner really cheap
Avalon sold me 1 miner with a small discount.

I purchased a few sdcards for my rasp pi
I purchased a second rasp pi for back up
So this thread has some of my cash invested to do  a 3 unit testing this way.

I will be the first to say just a little less money and these are really really good to get.

the three pack was running about 1500 usd shipped to NJ

If you  could get 3 packs at 1200 usd  shipping included. I would say get them.

WITH THE PROMOS AND DISCOUNTS I paid about 850-900 usd for my 3.

I could of just kept the one they gave me  at zero cost, but I did buy 2 more spending the 850 to 900 on those two.

That is because it has a  big clocking range .

757/1668 to 1350/2470 for a three pack is easy
and it goes lower and higher then that range.  that is my tested range


It uses rasp pi so a back up is cheap.

It is really quiet.

Not bad going at all good to see you been making good progress and nice simple and effective reports and post made so far. Will be keeping an eye on how things are going maybe go grab some avalons in the future if they come out with some bigger units but are less in cost.

the gear is very good for small in home miners.

3 of them can do 1350watts/2470gh = 0.543 watts per gh  i can go up to 2700gh but i go close to .625 watts a gh.

on down clock i don't know yet that comes next,

one thing for sure 3 on a rasp pi model b full size sdcard model are really stable. and a few back up sdcards are cheap

SO hows the progress working out with the avalons? you getting any good ratio with them or in way just more of hobby with them as seem a fair chunk of price to pay for avalon compared to a lot of others out their with much higher hash. Use to love avalon till things changed with  equipment and then sites and distributors

I  would like that very much.

Will do a MM update guide later.

I have the latest rpi


 20150213
Increase the voltage adjustment range for individual PMU
Display voltage refrence in CGMiner status when CGMiner run with debug
Add mining mode option for Avalon4
Fix cutoff for individual voltage adjustment
Fix hash counter when used a broken Avalon4 (DH almost 100%)
Change voltage adjust interval from 8m to 30s (Support all MM4.1 and MM4.0 >= 401501-4778d610)
Add freeze safe mode function
Update frequency table (Step:125)
Rewrite mm-tools, it will not compatible with the old one

My mm firmware is not upgraded

I have
411501-d17f4a10
411502-d517e210
411501-08e45110

look like they all should be

Version 411503-9281cd10

While doing the rasp pi was pretty safe to do just have a back up sdcard

 
[   ]   openwrt-brcm2708-sdcard-vfat-ext4.img   14-Feb-2015 02:12   76M
above is what is on my rasp pi sd card

   
I am not sure how to upgrade this firmware for the mm





MM Firmware (For MM-4.1)
Daily Building
http://build.canaan-creative.com:8080/~mikeqin/mm41/


20150312
Version 411503-9281cd10
Fix mm firmware revert
Check pg when mm working
Fix boot failure(Change bootloader with ila)

if i follow the link i end up here . at this point i am stuck


Index of /software/avalon4/mm41/2015-03-12

[ICO]   Name   Last modified   Size   Description
[DIR]   Parent Directory       -   
[   ]   md5sums   12-Mar-2015 05:57   213   
[DIR]   mm-no-bootloader/   12-Mar-2015 05:57   -   
[   ]   mm.bit   12-Mar-2015 05:57   454K   
[   ]   mm.elf   12-Mar-2015 05:57   35K   
[   ]   mm.hexdump   12-Mar-2015 05:57   78K   
[   ]   mm.mcs   12-Mar-2015 05:57   1.9M   
[   ]   mm.objdump   12-Mar-2015 05:57   194K   
Apache/2.2.22 (Debian) Server at downloads.canaan-creative.com Port 80

Please upgrade to latest MM and Rpi firmware if possible.

https://en.bitcoin.it/wiki/Avalon4#20150213

I just set the third one up.  I have 2 silver and 1 black now.  I was doing 1070/2025 = 0.528 w/gh

more settings later

1218 watts/2327 = 0.523 watts per gh. on 340:320:300 for freq  and  7375 for volts

remember I have the plat evga 1600 p2  so my watts will always be very good a little better then the evga 1300 g2

try:

customs

320:300:280

7375

Can wait to see that setup! Im also looking to get more Avalon 

Could you give me your setup for 800gh and around 400watt I guess.

   My third miner is due to arrive today. I will attempt to use it with my other two. I also think if I clock them at about 800gh each for a total of 2.4th
 I can run all three on my evga 1600 p2 plat psu.

This  should use a little bit more then 1250 watts. Run dead quiet. I hope to post some photos later today.