Topic: Avalon ASIC users thread - page 52. (Read 438582 times)

My Avalon recently stopped hashing, and this is what cgminer outputs with debug enabled (hopefully relevant excerpt):

 [2013-10-11 10:32:48] AVA0: GetAvalonReset (amt=64 err=-8 ern=11)
 [2013-10-11 10:32:48] AVA0: Get avalon read got err -8
 [2013-10-11 10:32:48] AVA0 reset: get:
 [2013-10-11 10:32:48] 00000000   aa 55 aa 55 00 00 00 00  00 00 00 00 00 00 00 00 |.U.U............|
 [2013-10-11 10:32:48] 00000010   00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00 |................|
 [2013-10-11 10:32:48] 00000020   00 00 00 00 00 00 00 00  00 00 00 00 41 06 d6 bf |............A...|
 [2013-10-11 10:32:48] 00000030   00 00 00 00 00 00 00 00  00 00 00 00 0a 28 cd 70 |.............(.p|
 [2013-10-11 10:32:48] AVA0: Reset succeeded (Controller version: 2013060665)


Can anyone suggest a remedy? Thanks in advance.

1 modules = 8
2 modules = 16
3 modules = 24
4 modules = 32

Nevermind, found it.

Change the number of miners from 24 (for a 2 module unit) to 32 (for a 4 module unit) and restart CGMiner.

120+GH's now. 

Oh trust me, I'm not confused by the working/not working Avalons. I know I want to take a hammer to the one that doesnt work! LOL!

1. Right now, its static. Its been DHCP as well but that did not change the fact that it wont hash. For the record, I know it can only be one or the other.
2. Yes, same cable plugged into my laptop (pulled out of the port on the Avalon) and it works fine. Yes, at its new location. (up a 10 foot ladder thank you very much  )

So... From my 30+ years of troubleshooting (albeit a completely different industry) I've deduced that there is something wrong with the network controller on the Avalon that wont connect. Since my other 3 are working I decided to give something a shot.

I unplugged the ribbon cables from the FPGA controller board in the BA (Bad Avalon) and plugged them into one of my GA's (Good Avalon). I also moved the fan connector from the BA to the controller in the GA. Obviously the temp sensors cant be fooled with but these units "should" heat up about the same so the GA should be able to keep the modules in the BA cooled down. The power supply from the BA is supplying current to the 2 hashing modules so theres no crazy load on the other units supply.

I think I have some tweaking yet to do in CGMiners setup as I'm not getting the 120ish GH's that I should be getting from 4 modules clocked at 375. FWIW when the BA was working I was getting right around 63GH's out of it.

Anyone know the tweaks needed for what would be a 4 module Avalon?

You need to stop confusing the working Avalon's with the non-working. That's now how to you do basic troubleshooting.
1. Is the Avalon that is having the problem setup on static IP or is it getting's its IP through DHCP? You can only be using one of them...
2. When you plug your PC into the network to test it are you plugging it into the same network cable you have plugged your Avalon at it's new location?

You can only SSH into the Avalon but you have to make sure SSH is enabled. 
 

I'll answer as I was asked.

Yes, the Avalon and the PC are on the same subnet. PC's address is 192.168.1.xxx and the Avalon is 192.168.1.206.

I've tried to configure the Avalon in both Static and DHCP. When in DHCP it moves to 192.168.1.12 (I made a copy of the MAC address so I could follow it though my router if it moved).

Yes, the PC can browse the internet just fine. There are three other Avalons that are connected to the same hub/switch as this one. They all work as advertised. I even tried moving network cables and ports on the switch and only this Avalon fails.

I think my bigger issue now is that CGMiner is missing from the Avalon in question. Or at least it looks like it is.

Anyone know how to telnet into these things? Is that even possible?

When you connect your PC into the Avalon, are you giving your PC an IP address on the same subnet that your Avalon had?

Did you initially set up your Avalon on a DHCP or static IP address?

When you plug your PC into the wall were your Avalon will plug into in the new spot can you get onto the internet and surf websites?

Yup, same network. Same Ethernet cable too. Its on LAN.

But, this has taken an interesting turn (for the worst I'm thinking).

When connected to the Avalon via a Win7 PC if I click on the CGMiner configuration screen I get an page not available error instead of the cfg screen (it was there this morning).

Also, in startup services CGMiner is no longer there.

This thing is possessed! I've already tried re flashing the firmware and that changed nothing.

My other three avalons are working fine. This one just doesnt want to go... 

Are you connecting to the same network after you move it? Are you connecting my LAN or Wifi?

I'm still fighting with this one Avalon unit that I dont dare power cycle. 

Well, I tried to move it today. It had been mining for the last two days without any issues. I move it to its new home, and it wont connect and start mining. I can connect to it via the web browser but it keeps giving me the "connection refused" error.

Any clues? This thing is pissin me off.

Thanks! 

Theres always the possibility of removing the hardware from the Avalon enclosure and putting them into something else. He's going to look at them next week and see what he can come up with.

The only real way you are going to cool the mini's is to stick them outside or close to a window if you live in the north, or put them in a freezer like a walk in one because there is very little room inside a mini to add things to make water cooling or anything fancy work.

Now that these things have been up for about 12 hours I've got some more data.

On the first one I unboxed, I opened it up and found all those screws that needed to be snugged on the heat spreaders. Now, its the coolest one of the bunch and also has the highest hash rate. TEMP2 (which I'm guessing is on one of the boards or the heatsink) is 46C on this until and the others are all over 50C. Also, the fan speed on this one is around 2500 whereas the others are all at 3200 and higher. Hash rate on the miner I popped open is just south of 60GH's and the others are all hanging at closer to 57GH's. All four units are clocked to 375.

Seems to me that I need to bust open the other miners on Monday and tighten some screws. 

I've got a friend that is working on a exotic cooling solution for gaming rigs. He's going to look at one of my Avalons to see if he can come up with something for them. I'd love to see these things operate closer to 40C without added fan noise. FWIW, the room they are in is held at a constant 18C.

Stay tuned!

Huh?! Are you simple? Would YOU raffle something off you don't own?

Do YOU even blow circuit-breakers with >4000W + who knows how many Amps on chitty chinese house wiring??

1btc may well win someone a fully functional B2 avalon 3 module mining rig in the next month or so...

Regardless, i decided to keep on mining...

Enjoy Your trust Issues!

I dont know how, but I managed to set the password on one of my Avalons to something other than what I told it to use. Is there a way to reset these things to factory? Its hashing away so I kinda dont want to mess with it (if its not broken, dont fix it) but I would like to get into it from time to time.

Also, of the 4 I received I opened one of them up (I'm the curious type). ALL of the screws on the heat spreaders were at least a full turn from tight (tight, not engine block torqued), ALL OF THEM. I'm going to open the others up later and see what they look like as well. FWIW, On the one I opened the temps are a few degrees higher but the fan speed is half of one that I have not opened. Its also backed into a corner by another Avalon so maybe ambient heat has something to do with the temp difference.

Setting the "second" one to DHCP fixed it. Whatever... So long as its hashing I guess thats all I really care about.

Thanks again for all the suggestions.

No such luck with the second one. Still getting the "connection refused" error.

I'm moving onto the 4th of 4. If I can get this one going I will have 3 of 4 working. 

FWIW, flashing one of the Avalon's with the new firmware got it up and running. I'm working on flashing the second one now.

What's better about this one than Avalon's firmware?

http://ck.kolivas.org/apps/cgminer/avalon/20130821/openwrt-ar71xx-generic-tl-wr703n-v1-squashfs-factory.bin