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Topic: Avalon ASIC users thread - page 66. (Read 438714 times)

member
Activity: 98
Merit: 10
October 17, 2013, 09:41:27 AM
If you have issues with hardware error rate add some solder around the buffers.  That fixes the HW error rate which is *usually* related to the buffers on the individual hash boards.
sr. member
Activity: 294
Merit: 250
October 17, 2013, 09:39:11 AM
Nope sorry for the confusion, I was just giving some details on my hardware setting, each Avalon is slightly different, I have also replaced the TIM with paste on each module to allow it to run cooler allowing me to run at 360 Mhz stable. From my testing the hashing indeed remains constant, however H/W increase over time e.g. over 48 hours without restart, after running for long periods I see 6 - 8% which is just wasted electricity, so a quick cgminer restart solves all this Smiley

My advice for your setup is to have cgminer restart every x amount of hours keeping H/W errors low, use whatever Mhz setting keeps your units hashing high as possible and stable. Hope this makes sense.

Sorry for budding in here, but are you saying the HW on the status page is the errors? And when you mention keeping it low, what's the magic number? Smiley

Thanks

what i realised, was that my units was running (b2 3u) at 83-85gh for 3-4 days on eligius. then all of a sudden, they drop to 75-70gh.. for no real reason, hashrate seems same on machines, but hw rate increases. Basically, if you see 83gh on eligius or in your pool always, you don't have our problem. if you see it dropping, add reset script line.
hero member
Activity: 630
Merit: 501
October 17, 2013, 07:41:14 AM
Nope sorry for the confusion, I was just giving some details on my hardware setting, each Avalon is slightly different, I have also replaced the TIM with paste on each module to allow it to run cooler allowing me to run at 360 Mhz stable. From my testing the hashing indeed remains constant, however H/W increase over time e.g. over 48 hours without restart, after running for long periods I see 6 - 8% which is just wasted electricity, so a quick cgminer restart solves all this Smiley

My advice for your setup is to have cgminer restart every x amount of hours keeping H/W errors low, use whatever Mhz setting keeps your units hashing high as possible and stable. Hope this makes sense.

Sorry for budding in here, but are you saying the HW on the status page is the errors? And when you mention keeping it low, what's the magic number? Smiley

Thanks
sr. member
Activity: 294
Merit: 250
October 17, 2013, 04:14:44 AM
Nope sorry for the confusion, I was just giving some details on my hardware setting, each Avalon is slightly different, I have also replaced the TIM with paste on each module to allow it to run cooler allowing me to run at 360 Mhz stable. From my testing the hashing indeed remains constant, however H/W increase over time e.g. over 48 hours without restart, after running for long periods I see 6 - 8% which is just wasted electricity, so a quick cgminer restart solves all this Smiley

My advice for your setup is to have cgminer restart every x amount of hours keeping H/W errors low, use whatever Mhz setting keeps your units hashing high as possible and stable. Hope this makes sense.

Thanks yes i understood that. super. I mean, the line you gave, maybe ill change it to every 20 hours, as it looks quite stable and high for even 70 hours.. but keeping a restart on a daily basis should be fine.
As for 360, maybe i will try 350, since they are in 20dgr ac room, but no hardware mods at all.
member
Activity: 70
Merit: 10
October 17, 2013, 04:09:13 AM
Nope sorry for the confusion, I was just giving some details on my hardware setting, each Avalon is slightly different, I have also replaced the TIM with paste on each module to allow it to run cooler allowing me to run at 360 Mhz stable. From my testing the hashing indeed remains constant, however H/W increase over time e.g. over 48 hours without restart, after running for long periods I see 6 - 8% which is just wasted electricity, so a quick cgminer restart solves all this Smiley

My advice for your setup is to have cgminer restart every x amount of hours keeping H/W errors low, use whatever Mhz setting keeps your units hashing high as possible and stable. Hope this makes sense.
sr. member
Activity: 294
Merit: 250
October 17, 2013, 02:57:58 AM
I have tried the latest official and reverted back to the last CK firmware version as it was more stable for me, I run at 360 Mhz with H/W at about 1.4%

However after running cgminer for days the H/W error rate would always creep up, so now I just run a cgminer restart in scheduled task, below will restart cgminer every 8 hours. Keeps my H/W rate low.


0  */8 *   *   *     /etc/init.d/cgminer restart

so you are suggesting to set fixed 360 instead of 340? and add the restart each 8 hours?
I assume that its H/W that goes up for me aswell, as hashingpower seems to remain, and all boards are hashing at next to identical numbers.
member
Activity: 70
Merit: 10
October 17, 2013, 02:36:51 AM
I have tried the latest official and reverted back to the last CK firmware version as it was more stable for me, I run at 360 Mhz with H/W at about 1.4%

However after running cgminer for days the H/W error rate would always creep up, so now I just run a cgminer restart in scheduled task, below will restart cgminer every 8 hours. Keeps my H/W rate low.


0  */8 *   *   *     /etc/init.d/cgminer restart
sr. member
Activity: 294
Merit: 250
October 17, 2013, 02:09:24 AM
Hey, i realised that my units are much stabler, on -avalon-auto and chip freq 340 fixed. (without --avalon-freq 340-375, if i had this on, it defaulted on much less than 340 after a few days).

however, now it went down to a default again to around 330 after 4 solid days.
Anything i can do? or must i put a cron job to restart every 24 hours to keep it solid?
(i'm running latest ckolivas, have not tried the latest official yet)
hero member
Activity: 630
Merit: 501
October 16, 2013, 06:51:37 PM
Does anyone know where I can get an extra thermal sensor for my B1? I noticed in the B2 there are two thermal sensors connected to module one and module 3 (of course there is on on one of the boards making it 3 total), this might explain why the B1 shows -1 one Temp2 because it only comes with one, well two technically thermal sensors, one connected to module 1 and the other on one of the boards. I would like to know if anyone has attempted to get another thermal sensor for their B1?

Thanks,
hero member
Activity: 630
Merit: 501
October 16, 2013, 05:19:09 PM
Can the WiFi be setup so that my Avalon connects to my AccessPoint instead of hosting its own? If so how do I set it up to do this and use WPA2 encryption?

I had a hook and the options aren't really straight forward.

Thanks

Update:

I got it to connect but I can't access the avalon from http once I remove the ethernet cord from the machine over wifi. Sad

legendary
Activity: 1098
Merit: 1000
October 16, 2013, 03:53:49 PM
Thanks for the info.

Do you know if the units run cooler with their lids off than having it on? I have a 18" fan blowing air at my B1 and B2 units.
No problem.

They are designed to stay closed, and I'd leave it that way. Nzhang (sp?) said a lot was done on the airflow and pressures.

PS Solved my remote problem, I had set it up correctly the first time the problem was with chrome, when I looked at the error it was "ERR_UNSAFE_PORT", quick google search showed that adding --explicitly-allowed-ports=xxx to the end of it's shortcut was all that was required to get it going again Smiley
sr. member
Activity: 259
Merit: 250
Dig your freedom
October 16, 2013, 03:50:40 PM
what should I set the --auto-cutoff on my 4 module?

I had it set to 60 when I had 3 modules.

Batch #1 & #2 (50 temp, 70 cutoff)
Batch #3 (70 temp, 90 cutoff)

Thanks for the info.

Do you know if the units run cooler with their lids off than having it on? I have a 18" fan blowing air at my B1 and B2 units.


I make many test and most important thing are inlet air temp. 18 or lower.
Next. Best result I get when lid cover 75% case.   About 10cm from rear. Its help for better exhaust hot air.
hero member
Activity: 630
Merit: 501
October 16, 2013, 03:14:04 PM
what should I set the --auto-cutoff on my 4 module?

I had it set to 60 when I had 3 modules.

Batch #1 & #2 (50 temp, 70 cutoff)
Batch #3 (70 temp, 90 cutoff)

Thanks for the info.

Do you know if the units run cooler with their lids off than having it on? I have a 18" fan blowing air at my B1 and B2 units.

legendary
Activity: 1098
Merit: 1000
October 16, 2013, 03:03:23 PM
what should I set the --auto-cutoff on my 4 module?

I had it set to 60 when I had 3 modules.

Batch #1 & #2 (50 temp, 70 cutoff)
Batch #3 (70 temp, 90 cutoff)
hero member
Activity: 630
Merit: 501
October 16, 2013, 03:00:19 PM
Remains of thermal paste is not a problem. I doubt Bitsyncom use conductive in this case.
BTW. How much You pay for module ?

I bought them from Yifu, 3.8BTC each. Shipping was good, got them in 3 business days from China. Smiley

hero member
Activity: 630
Merit: 501
October 16, 2013, 02:59:11 PM
what should I set the --auto-cutoff on my 4 module?

I had it set to 60 when I had 3 modules.


Thanks
sr. member
Activity: 259
Merit: 250
Dig your freedom
October 16, 2013, 02:10:10 PM
Remains of thermal paste is not a problem. I doubt Bitsyncom use conductive in this case.
BTW. How much You pay for module ?
hero member
Activity: 630
Merit: 501
October 16, 2013, 11:16:34 AM
I ordered to modules last Friday for my B1 and my B2 Avalon's, the both arrived today, not bad as Monday was a holiday in Canada - Thanksgiving.

I have a question though, looking at one of the modules it looks like someone with dirty silicon hands touched the board side and left silicon on the ASIC chips and some of the components, will this be harmful to the board and its components or should I clean it?

Thanks
hero member
Activity: 630
Merit: 501
October 16, 2013, 03:37:13 AM
You should see some response unless the network your Avalon is plugged into is filtering everything, then you will have open port 80 on the LAN to your Avalon. You should take a laptop and go plug into the same network as your Avalon is on then confirm it's IP and confirm see what the external IP is by going to "what's my IP" in google. If the place where your Avalon is running isn't too complicated you should be able to use that IP (from the outside) to hit your Avalon, if it's setup different you may need to find out which external IP you need to come in on.

Not there at the moment, but I seem to recall the browser just said unable to connect to xxx.xxx.xxx.xxx, the port 22 forward worked fine so I just presumed it wasn't port 80

Now I know it is I'll try again in case I messed something up, or investigate further in case the router is not allowing forwarding on that port.

Thanks Smiley

One last thing to mention is ideally what you want to have is a Cisco business class or ASA firewall, something that allows you to VPN into your network, it's better than going this route with port forwarding stuff to the outside world. Something like an Cisco RV180 or an ASA5505

http://www.canadacomputers.com/product_info.php?cPath=346&item_id=054395
http://www.canadacomputers.com/product_info.php?cPath=1026&item_id=027657

The choice is yours to make, as far as what's more safer? I would go the VPN route.
hero member
Activity: 630
Merit: 501
October 16, 2013, 03:32:54 AM
I have a question about pools on the Avalon.

Is it better to have multiple pools going on the Avalon or only focus on one pool at a time with failover enabled?

Thanks,
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