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Topic: Avalon ASIC users thread - page 113. (Read 438596 times)

full member
Activity: 238
Merit: 100
July 26, 2013, 08:05:17 PM
Okay, I have 3 avalon 3-module units.  They are all overclocked and running ckolivas 0703 firmware.  Two of them consistently average 80-81Gh/s.  The other is a little slower and averages about 76.5Gh/s when left alone for a day or so.  All the settings are the same, but the slower one generates 5% HW errors and the other are almost exactly 2%.

I have tried everything I can think of.  I moved the slow learner to sit in front of the AC register and turned fans to 100% so it runs very cool now, swapped out the power supply with a 1250 watt OCZ.  I have tinkered with the clock settings between 325 and 350.  The result is the same.  I realize it's a small amount of hashing power, but the perfectionist in me wants it the same as the other two.  Here's a screenshot: 

http://i.imgur.com/u7KU53Y.jpg

In the config, I have the chip frequency set to 350 but in more options I have:  --avalon-auto --avalon-fan 100

Any ideas why this one would be throwing  more errors?
full member
Activity: 238
Merit: 100
July 26, 2013, 06:52:08 PM
Also, any guesses on the bandwidth requirements for these machines, the Avalons?

Pretty negligible, if I understand your question.  My Avalon [batch 2, black case] barely effects my network's access to the Internet.  Also, the reverse seems true as well.  I am able to stream Netflix, browse the web, FTP large files, without effecting the Avalon's performance from what I can tell.  I'd bet any DSL-equivalent Internet access speeds are sufficient.  I have cable access at about 6 Mbps up and down, but would trust a 1 Mbps up/down link to be more than sufficient for mining.

_theJestre

-just to add to what Jestre said, as far as I can understand it, the latency of the connection will have a much greater effect on your performance than your bandwidth. Bandwidth requirements are pretty much negligible, whereas poor latency could cause you to submit more stales... I think...

What would you say is an acceptable latency?  When I ping two of my Avalons, I get 2-3ms consistently.  The third is running over a powerline adapter and latency varies from 3ms to 35ms.
legendary
Activity: 1512
Merit: 1000
@theshmadz
July 26, 2013, 06:39:30 PM
Also, any guesses on the bandwidth requirements for these machines, the Avalons?

Pretty negligible, if I understand your question.  My Avalon [batch 2, black case] barely effects my network's access to the Internet.  Also, the reverse seems true as well.  I am able to stream Netflix, browse the web, FTP large files, without effecting the Avalon's performance from what I can tell.  I'd bet any DSL-equivalent Internet access speeds are sufficient.  I have cable access at about 6 Mbps up and down, but would trust a 1 Mbps up/down link to be more than sufficient for mining.

_theJestre

-just to add to what Jestre said, as far as I can understand it, the latency of the connection will have a much greater effect on your performance than your bandwidth. Bandwidth requirements are pretty much negligible, whereas poor latency could cause you to submit more stales... I think...
member
Activity: 76
Merit: 10
July 26, 2013, 04:23:05 PM
Also, any guesses on the bandwidth requirements for these machines, the Avalons?

Pretty negligible, if I understand your question.  My Avalon [batch 2, black case] barely effects my network's access to the Internet.  Also, the reverse seems true as well.  I am able to stream Netflix, browse the web, FTP large files, without effecting the Avalon's performance from what I can tell.  I'd bet any DSL-equivalent Internet access speeds are sufficient.  I have cable access at about 6 Mbps up and down, but would trust a 1 Mbps up/down link to be more than sufficient for mining.

_theJestre
sr. member
Activity: 364
Merit: 250
July 26, 2013, 03:27:39 PM
Also, any guesses on the bandwidth requirements for these machines, the Avalons?
legendary
Activity: 1246
Merit: 1002
July 26, 2013, 02:47:14 PM
Having trouble pointing an Avalon @ Alt coins... any suggestions as to why?

Also, can't seem to connect anywhere that uses Getwork. IE pit.deepbit.com:8332 is socket error, same with Coinotron unless I add stratum. however, simply changing the port and etc for Coinotron that would normally allow me to mine alt coins does not do so, rather it just forces BTC. These mine SHA-256, is there some trick I am missing to mine more than BTC?

I have installed Ubuntu and eloipool in a virtualbox.  This works well with the test network for bitcoin.  It fails with bytecoin, an almost identical coin.  There is some discussion on the bytecoin thread, search for 'Maria 2.0', about abandoning their p2pool efforts, and making eloipool work with Avalons.

The bytecoin version, bytecoin-qt does list my connection in getpeerinfo.

I was approaching it as a quick configuration problem, so that I could throw some hashes at the coin.  It has only mined about 300 blocks since May, apparently someone mined 2016 blocks quickly, then orphaned the network at high difficulty.

I am going to rebuild my virtualbox installation from scratch with very good notes and a checklist.  Pending on how much time that takes, I will package it as an "appliance."  I may or may not include the blockchain.  I have to go learn about diff files and merging them, I haven't done that in 25 years and my memory is empty.


sr. member
Activity: 364
Merit: 250
July 26, 2013, 02:34:31 PM
Having trouble pointing an Avalon @ Alt coins... any suggestions as to why?

Also, can't seem to connect anywhere that uses Getwork. IE pit.deepbit.com:8332 is socket error, same with Coinotron unless I add stratum. however, simply changing the port and etc for Coinotron that would normally allow me to mine alt coins does not do so, rather it just forces BTC. These mine SHA-256, is there some trick I am missing to mine more than BTC?
sr. member
Activity: 302
Merit: 252
July 26, 2013, 01:29:55 PM
OK, then I will try Linux. Maybe it works with minepeon out of the box ?

but I dont know where the bug really lies, this is what I get:


-ck
legendary
Activity: 4088
Merit: 1631
Ruu \o/
July 26, 2013, 01:17:15 PM
I think my internal router is dead, it stops always after some hours of hashing and shows nothing for fan or temp then anymore

What do I need to use it with cgminer on windows 7, which usb driver?
I started cgminer 3.3.1 and plugged the internal USB from avalon in, but It wont be recognized..
There is no avalon code built into the cgminer binary for windows for I figured someone would have to be crazy to try that with its lousy timing capabilities. Your choices are to build a windows binary for yourself with avalon support and use zadig to associate the avalon device with the WINUSB driver, and be the first person to try that combination, or use linux.
sr. member
Activity: 302
Merit: 252
July 26, 2013, 01:03:40 PM
I think my internal router is dead, it stops always after some hours of hashing and shows nothing for fan or temp then anymore

What do I need to use it with cgminer on windows 7, which usb driver?
I started cgminer 3.3.1 and plugged the internal USB from avalon in, but It wont be recognized..
newbie
Activity: 36
Merit: 0
July 26, 2013, 04:37:06 AM
HW/(HW+Diff1)<2%

Thanks running about 1.5% currently at 355
legendary
Activity: 1600
Merit: 1014
July 26, 2013, 04:10:44 AM
HW/(HW+Diff1)<2%
sr. member
Activity: 377
Merit: 253
July 26, 2013, 04:01:07 AM
How to set all fans for 100% with original newest soft?
I'm to tired for lurking into hundred of pages, please help me briefly.

Any firmware after June 21. Enter the following command in cgminer configuration->more options field:

--avalon-fan  

This will set fanspeed percentage for avalon, single value or range (default: 20-100)

See here:  https://en.bitcoin.it/wiki/Avalon#NEXT

THX I have already found it.

What is reasonable acceptable HW avg errors rate per 5 min?
legendary
Activity: 1470
Merit: 1021
July 25, 2013, 10:32:45 PM
My Avalon has shipped without a power cord. I cannot find any cords that fit.

Come on. http://en.wikipedia.org/wiki/IEC_60320#C13.2FC14_coupler

I don't know, those power cables are pretty rare  Grin
full member
Activity: 238
Merit: 100
July 25, 2013, 08:14:09 PM
How to set all fans for 100% with original newest soft?
I'm to tired for lurking into hundred of pages, please help me briefly.

Any firmware after June 21. Enter the following command in cgminer configuration->more options field:

--avalon-fan  

This will set fanspeed percentage for avalon, single value or range (default: 20-100)

See here:  https://en.bitcoin.it/wiki/Avalon#NEXT
sr. member
Activity: 377
Merit: 253
July 25, 2013, 06:49:26 PM
How to set all fans for 100% with original newest soft?
I'm to tired for lurking into hundred of pages, please help me briefly.
full member
Activity: 238
Merit: 100
July 25, 2013, 01:49:08 PM
Temps are 43-48 and occasionally 50. I have no idea why one is a little slower.  Anyone?
for me the same
bottom is slower because it gets the heat of top, but I have it stacked

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I tried them stacked and side by side with the same result :/

Now I just put them on ventilated shelving. we'll see.
legendary
Activity: 2955
Merit: 1049
July 25, 2013, 01:45:37 PM
Temps are 43-48 and occasionally 50. I have no idea why one is a little slower.  Anyone?
for me the same
bottom is slower because it gets the heat of top, but I have it stacked

-----------------
|                   |
-----------------
-----------------
|                   |
-----------------
hero member
Activity: 486
Merit: 500
July 25, 2013, 01:11:32 PM
Just read the wiki about the plastic sheet that covers the case, ive been mining with them on, and my temps are below 46, anyone know if it will lower my temps even more?
full member
Activity: 238
Merit: 100
July 25, 2013, 12:26:38 PM
I have 3 Avalons and am using ckolivas' 0703 firmware on all.  Two of them average 79-81 GH/s over 3 hours reliably.  The other one is averaging 76.7 or so.  That last 3.5GH/s that the slower one is missing out on is annoying me.  Is this normal variance across avalons when overclocked?  Or should they be closer in hashing speeds.  

I noted that the slower one has a differrent power supply than the other two.  It has chinese characters on it and says 850, whereas the others have GX850 printed on them.  I have a spare Corsair 750W I am thinking of trying on the slower one.  Anyone have any suggestions before I do?  

On all three, I have been using the command:  --avalon-auto --avalon-freq 300-375 --avalon-options 115200:24:10:36:355

and they seem to clock around 343-347 when I check them.  Temps are 43-48 and occasionally 50. I have no idea why one is a little slower.  Anyone?

Pics of the two different setups: 

http://imgur.com/VHIU8gv
http://imgur.com/mhum98z (slower one)
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