Topic: Official Avalon Technical Support Thread - page 24. (Read 48885 times)

Avalon does not plug in to your motherboard.  You set it for a pool.  You can run your own pool and solo mine, with basically the same motherboard requirements as running bitcoind.

can someone recommend a robust motherboard that would be suitable for solo mining with 3 avalons? 

Thanks for confirming that. I was worried that I was the only one with this. I will wait for a newer firmware revision which hopefully will fix this. I'd also like to add that I found 03/25 to be more stable than 03/21.

Yes I have experience a bug regarding the Fan speed.

The fans (I think) are operating normally. The fan speed readings are not working very well.

its more likely you need to apply the firmware in the instructed manner.

I have tested this both ways and measured temps and proved that an external PSU that is fully modular provides much better ventilation and cooling. This is because with a fully modular PSU you only use the cables you need.
Reasons:
1)  NO need for a big rats nest of molex and sata cables, which not only prevent airflow they also could potentially damage the incredibly fragile connector board and the usb controller / fpga board
2) Also Having the PSU outside of the case eliminates any sort of interference with the USB controller which I have heard reported from several credible sources.


It also does not hurt to have a PSU rated 80 plus platinum in efficiency, which has an hybrid fan mode - you will thank it when you receive your electrical bill.

-jj

Hmm, something odd here. After applying the 03/25 firmware I noticed that the fan RPMs are stuck at 1800 for FAN2 and 1920 for FAN3. Has anyone else experienced this? I'm assuming this is a firmware bug.

PSU Thread: https://bitcointalksearch.org/topic/avalon-batch-3-psu-158867

Do NOT get PSU measuring longer than 7 inches front to back or it will not fit in case.

As to WWAN connection, I think changing the settings and applying might not be enough to connect, I may need to also restart a service?  Or do I have to hard reboot the whole device after selecting WWAN on DropBear?  And what about checking box for remote host?

$229 in USD is standard.   Not sure about Canadian.

Occasionally you'll see sales around the holidays down to $199 like at Christmas.

This makes infinite sense and is how I plan to run mine when I get them and change out for the seasonics.

I also plan to run an external fan and separate them on a rack.

Exciting stuff.

I've been looking into this PSU and I'm wondering how much you paid for it. The cheapest I've been able to find it here in Canada is $259. If anyone knows a better deal I'd appreciate the notice.

In regards to your post about the firmware update process I found out that it doesn't hurt to just go ahead and update the firmware while the unit is still mining. That's what I did when updating to 03/25 and I ran into no problems whatsoever. I did not even wipe the settings. The machine is running stable on 03/25. I've had one restart but that was cgminer restarting NOT the Avalon unit itself. The cgminer-monitor script did its job.

Now as for the power supply post, I do believe it is an Antec EA-650: http://www.newegg.com/Product/Product.aspx?Item=N82E16817371044

I always put things back together with all intended parts. I recommend others do that too.

In either case, anyone know what the 3 module units have as a power supply? I am not previously a miner and therefore I intend to buy a superior replacement should I ever encounter the red blinking light.

Recommendations from the Avalon team are most welcome!

I did stop all mining activity. I simply did this by wiping the settings back to factory default on 3/21. I assumed that was what the Wiki instructed in very bad English.

I then waited about 20 minutes to make sure the reset was done. (Had a hard time reconnecting as the settings changed to an odd configuration.)

Then I went ahead and flashed the firmware. Finally I reuploaded a configuration backup I had stored previously. Then made sure all settings were correct and it started working by itself.

It (The Avalon Device) does encounter errors, but it simply resets itself without human intervention. So at most only a few minutes each day are lost.

I hope this helps.

What do you guys think of this idea. How about cutting a window on the side of the Avalon case and mounting the PSU internally with its intake fan facing the outside. This way the PSU draws in cool air instead of warm air from within the Avalon's case. Would there be any problems with this idea?

I am missing some screws I only re-installed four on the side I removed but temps are very good - I am running them in a very well ventilated room with cold air coming in from the outside. This may become an issue when summer comes and will need air conditioning.


Using a PSU that is fully modular and keeping it on the outside really helps drop the temps a great deal. Stuffing all those un-needed molex and sata cables like it comes stock on those antec PSU's just clogs the thing up and makes it run hotter than it needs to.

When stuffing four modules into that case - your going to want a fully modular PSU at least 1000watts - at least bronze but preferably gold or platinum rated, theres just no need to have all those un-used cables clogging up your air ways.

Also with four modules cool air ventilation is a must.

I set all my interfaces to wwan so I can connect wirelessly to the avalons.



Also while I am here I wanted to give an update on my two self upgraded units
I had one unit get damaged in shipping so I took two units and added an extra module to each one and also added an external seasonic platinum 1000 watt platinum PSU to each Avalon which is arguably the most efficient PSU in the world.

and yes I have an unused avalon module sitting on a shelf which sucks but I need to get the rest of my shipment to utilize that.

At Any rate here's some Avalon porn:



Four Avalon Modules installed, along with an upgraded PSU - the seasonic mentioned above
one of the great things about it, is it is FULLY modular so I only need to use the cables that I need.
Installing it on the outside of the unit not only provides more Air flow but also it cuts down on interference with the susceptible USB controller.



The same setup was done with two units, currently running 03/21/2013 firmware



This is with the units all buttoned up nice and neat. The Avalon to the left has stripped holes in one of the modules because Aluminum is a soft metal and it strips easily (shipping damage) so I must lay it on its side. My next project while im waiting for the rest of my units is to build legs for it to get it off the table.

Two major factors when considering doing your own 4 module upgrade
(1) first make sure you have a sufficient PSU
(2) Proper cooling is a must or you will get frequent shut downs.
(3) Make sure to upgrade to 03/21/2013 firmware, set amount of modules to 4
(4) Either telnet or SSH to the Avalon and run this command without the quotation marks " sed -i 's/ $B / "$B" /' /usr/bin/cgminer-monitor "
(5) Go to CGMINER Configuration and add this to the bottom where it says API Allow to "W:127.0.0.1"

I am still waiting on the majority of my early batch 1 order and hopefully they get them to me soon!

Hope you enjoyed this post!
take care
-JJ

Flashed to 3.25 firmware - did not fix the problem, in fact it stopped even faster.

Installed the script fix.  waiting to see if it works.

Problem now: cannot connect over wwan with ssh or scp, I have to be plugged into the computer with lan cable.  I tried setting it to wwan listen on dropbear settings, rebooted (soft), did not try hard reboot.

Has anyone successfully logged in to their avalon asic remotely using ssh or scp?  How do I set that up?

thanks a lot cypherdoc for link to related thread.

yes, here:

https://bitcointalksearch.org/topic/m.1669842

also, some ppl are having success with 0325.  i'd try that.