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Topic: Avalon ASIC users thread - page 140. (Read 438516 times)

-ck
legendary
Activity: 4088
Merit: 1631
Ruu \o/
July 03, 2013, 08:55:28 AM
New Avalon firmware:

http://ck.kolivas.org/apps/cgminer/avalon/20130703/

Fixed one longstanding bug where it would occasionally fail to start yay. \o/

Should also prevent one mode of failure while it's running.
legendary
Activity: 1112
Merit: 1000
July 03, 2013, 08:12:10 AM
I inverted fans on my unit now they take out warm air from the box. (PSU removed)
Fan1/Fan2/Fan3/T1/T2/T3
Before: 1560 2520 2640 26 45 47 (temperature in my room 25C)
After:   1440 2160 2280 33 43 44

Did you change the location of the intake and outlet temperature sensors?

Your fan speed settings are based on those values...
full member
Activity: 242
Merit: 100
July 03, 2013, 07:35:12 AM
I inverted fans on my unit now they take out warm air from the box. (PSU removed)
Fan1/Fan2/Fan3/T1/T2/T3
Before: 1560 2520 2640 26 45 47 (temperature in my room 25C)
After:   1440 2160 2280 33 43 44
But thin fan now seems useless, vibration slightly increased fan and noise changed to lower frequencies Cheesy
I think cooling in this way more effective Wink
sr. member
Activity: 388
Merit: 250
July 03, 2013, 07:29:46 AM
tested today version 702-1
it seems to be a conflict with cgminer
I see multiple cgminer process in the process tab , also with top command ssh , after killing all and restarting the cgminer process
I manage to make it work just 5 min  with the donation on (fresh flash without keep settings) at 300 (with 282 it did not start)
After it started the work I`ve done a soft reboot(to chek if it works after reboot , also I`ve done 2 cold restarts with 1 min power off)  , after that it did not work anymore ,
-auto was the same for me
 had to revert to stromborn version again
10x
Thor
hero member
Activity: 826
Merit: 1001
July 03, 2013, 06:43:19 AM
I received my Avalon boxes today, but one of them has severe problems:

All of them hash just fine at 300 MHz, but one of them only works if I set it to 256 (but still problems).

When it starts hashing, it will climb to about 66 GH, but then resets every 1-5 minutes, sometimes resets even quicker.

This box had an older firmware on it than my other ones. It had 3.1.1 instead of 3.2.1 (I think).

The temperatures seem to be pretty normal. But it just resets a lot. Sometimes it will not start again even if I stop and start the service, and I have to power off and on again.

What are some things I can do to troubleshoot the issues with this box?
Read this thread from begin to end, it has plenty of suggestions.
legendary
Activity: 1610
Merit: 1000
July 03, 2013, 06:42:58 AM
I received my Avalon boxes today, but one of them has severe problems:

All of them hash just fine at 300 MHz, but one of them only works if I set it to 256 (but still problems).

When it starts hashing, it will climb to about 66 GH, but then resets every 1-5 minutes, sometimes resets even quicker.

This box had an older firmware on it than my other ones. It had 3.1.1 instead of 3.2.1 (I think).

The temperatures seem to be pretty normal. But it just resets a lot. Sometimes it will not start again even if I stop and start the service, and I have to power off and on again.

What are some things I can do to troubleshoot the issues with this box?

Check FPGA controller board USB fuse and power supply to be at least 750W. Then upgrade software and try
member
Activity: 91
Merit: 10
July 03, 2013, 06:39:16 AM
I received my Avalon boxes today, but one of them has severe problems:

All of them hash just fine at 300 MHz, but one of them only works if I set it to 256 (but still problems).

When it starts hashing, it will climb to about 66 GH, but then resets every 1-5 minutes, sometimes resets even quicker.

This box had an older firmware on it than my other ones. It had 3.1.1 instead of 3.2.1 (I think).

The temperatures seem to be pretty normal. But it just resets a lot. Sometimes it will not start again even if I stop and start the service, and I have to power off and on again.

What are some things I can do to troubleshoot the issues with this box?
hero member
Activity: 602
Merit: 500
Vertrau in Gott
July 03, 2013, 06:06:51 AM
anything else you see that i could improve upon in the settings?
All looks pretty good. My only concern is more about your Avalon itself. It's obviously hot where you are at the moment, as your fans have ramped up to almost the maximum. Due to them including 2 high pressure 38mm fans and 1 regular pressure 25mm fan, when the 38mm fans run at maximum speed, the air pressure is so high in the case that the 25mm fan is blowing but air is actually moving backwards through it. I don't know what the solution there is...

I removed the stock fans and bought 3 Scythe fans with 5400 RPM. I power them with 12V and 100% via a molex connector. Its very loud but works fine and provides good temperatures
member
Activity: 75
Merit: 10
July 03, 2013, 05:58:18 AM
Slightly updated firmware:

http://ck.kolivas.org/apps/cgminer/avalon/20130702-1/openwrt-ar71xx-generic-tl-wr703n-v1-squashfs-factory.bin

This rolls back to the previous hardware error target of <2% when using avalon-auto which is worth about 1.5GH more on average.

EDIT: Adds a check for maximum fanspeed before throttling speed at higher temps as well.

Thank you for your work! Donating some hashes as we speak!
legendary
Activity: 1112
Merit: 1000
July 03, 2013, 04:03:53 AM
Accepted/Rejected is changed in the current master version for precisely this reason. The web interface, on the other hand, may lag. It's the legacy of constantly shifting changing landscape of bitcoin mining.

I am not blaming you for legacy cruft, don't get me wrong...

By the way, for those using the 0519 firmware from Strombom, don't forget that old cgminer pre 3.2 counted errors as hashrate, which affects the calculations. Another thing that confuses people when comparing performance ;-)
legendary
Activity: 1378
Merit: 1003
nec sine labore
July 03, 2013, 03:55:33 AM
Is it stratum vardiif ramping up so you are submitting far less shares but same hashrate?

is there a way to tell?

Yes,

look at the lines with "Checking retarget for...", you'll see that it grows slowing down share submission.

spiccioli
sr. member
Activity: 302
Merit: 252
July 03, 2013, 02:50:31 AM
3 Questions:

- my cgminer process seems to restart after every 4 hours or so.. must watch longer to see if it happens regulary. could it have something to do with the --avalon-auto, maybee the freq gets to high and it restarts? I am using --avalon-freq 300-340

- As I read I can forget the "discarded" shares, what about the number of "rejected", do I have to set them also in relation to diff1shares or to the accepted?

-Is it save to use --avalon-temp 55 ? the fans are running at about 2700 under that environment conditions atm.
-ck
legendary
Activity: 4088
Merit: 1631
Ruu \o/
July 03, 2013, 02:31:25 AM
Accepted/Rejected is changed in the current master version for precisely this reason. The web interface, on the other hand, may lag. It's the legacy of constantly shifting changing landscape of bitcoin mining.
legendary
Activity: 1112
Merit: 1000
July 03, 2013, 02:21:21 AM
I think the interface is confusing most of us: to the occasional observer your system has

Accepted: 1013
Not accepted: (Rejected 4 + HW 406 + discarded 64)= 474

so about 31% is lost? :-)
Sigh, also wrong.

The absolute values that count here are:
Accepted: 39126
Rejected: 789
HW: 406


Again, this proves my point that the way the values are displayed is confusing

The occasional observer does not see Accepted: 39126 (He/she sees 1013)

Where is that value? You calculate it?

Hands up for those that also misread the stats page (and are not afraid to admit it)?
legendary
Activity: 1764
Merit: 1002
July 03, 2013, 01:53:15 AM
however, initially it was streaming thru pages of hashes w/o problem but now has slowed to a crawl.  some memory buffer or something must be filling up.  
Is it possible that your disk is near its capacity because of the hugh logfile ?

this was answered above:  vardiff.
legendary
Activity: 1764
Merit: 1002
July 03, 2013, 01:50:01 AM
how long does it typically take to be delivered from China to the US? Any feedback would be greatly appreciated!
Thanks for time,
Brian

not long.  4 days max?

i got tracking # for my last avalon yesterday and i just checked DHL and it's already left Hong Kong for LA.
hero member
Activity: 826
Merit: 1001
July 03, 2013, 01:49:32 AM
Hardware error percentage is:
100 * HW / (diff1shares + HW)
Friendly suggestion: Is it possible to add this percentage to the cgminer web page to make it easier for us ?
hero member
Activity: 826
Merit: 1001
July 03, 2013, 01:48:33 AM
however, initially it was streaming thru pages of hashes w/o problem but now has slowed to a crawl.  some memory buffer or something must be filling up.  
Is it possible that your disk is near its capacity because of the huge logfile ?
full member
Activity: 242
Merit: 100
July 03, 2013, 01:44:48 AM
That's unusual. It should work out to 42:300 now. Did you start with a fresh configuration or have you always done "keep settings" from the old firmware?
Yes, I flashed with "keep settings", I will try reflash later today w/o keeping settings.
-ck
legendary
Activity: 4088
Merit: 1631
Ruu \o/
July 03, 2013, 01:42:14 AM
I'm not really sure why this happens, but it appears to happen when code outside of cgminer kills it, so I suspect it's because it's not allowing it time to shut down properly and perhaps the API port is still bound to the old zombie process and you're not seeing the new one mining, or the new cgminer process is fighting the old one for access to the device.
But I see only one cgminer process, and unit not mining at this time (I have watt meter ~34W at idle) and GetWorks slowly incresing over time so It's a same process.
I see difference in options  & 07/02 frimware:
06/07 frimware: --avalon-options 115200:24:10:43:300 (mining)
07/02 frimware: --avalon-options 115200:24:10:38:300 (not mining & zero temps displayed)
What timeout value means?

That's unusual. It should work out to 42:300 now. Did you start with a fresh configuration or have you always done "keep settings" from the old firmware?
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