Topic: Avalon ASIC users thread - page 84. (Read 438582 times)
Thanks Guys. Its hasing nicely along now, on the ethernet.
You're problem is with the TP-LINK, I was able to fix the issue by replacing that module. You can see pictures here: www.neo-asics.com
Hello all. After some Internet downtime(damn ISPs) and a swift relocation of my batch 3 3module avalon. I have a hard time getting uptime. The ethernet connection is unbelivably slow and disconnects and connects all the time. It took me 2hours to connect it to the WIFI. It was up to about 68gh/s for one hour, and then died. Now im having a hard time acsessing the web interface. Anybody got any idea whats causing this slow/briken connection on the ethernet between my avalon and my ubuntu laptop? thanks.
Make sure you have the avalon only have either wifi or ethernet connecting to the default gateway, if both are on the same subnet, your avalon is trying to connect via both to the outside and that gives weird results.
If you stick to ethernet, remove the wifi support in the interface
That, and i realised if wifi reception is low, somehow after a few hours or days, it just continues to drop connection (read somewhere that wifi card looses power if reception is low). Make sure to use antennae or switch in full to LAN as above poster mentioned.
I want to ask which kind of resistor is missing here on the second chip from right?
I've been looking around,but can't finded what is the corect name and parameters of that one.
You can simple short pad instead MB M1 on schematic but there is the reason why this element retorted. I think short inside chip or ceramic capacitor on left side MB.
First: took this module outside.
Moved the last onto his place.
Now can turn on miner.
Then make measure on the damaged PCB:
for a short on 7 pin to GND and 3v3
If chip are damaged go to cellphone repair box, and swap chip from last position U12 to U6.
Chip work in the chain and if you remove broken have 2 options:
insert new or one from last position
make wire connection
pin 1 to pin 36
pin 2 to pin 35
Before mount repaired PCB check for short on all chip (1V2 3V3 to GDN)
I hope this help.
Hello all. After some Internet downtime(damn ISPs) and a swift relocation of my batch 3 3module avalon. I have a hard time getting uptime. The ethernet connection is unbelivably slow and disconnects and connects all the time. It took me 2hours to connect it to the WIFI. It was up to about 68gh/s for one hour, and then died. Now im having a hard time acsessing the web interface. Anybody got any idea whats causing this slow/briken connection on the ethernet between my avalon and my ubuntu laptop? thanks.
Make sure you have the avalon only have either wifi or ethernet connecting to the default gateway, if both are on the same subnet, your avalon is trying to connect via both to the outside and that gives weird results.
If you stick to ethernet, remove the wifi support in the interface
http://i.imgur.com/OlJOgGe.jpg?1
I want to ask which kind of resistor is missing here on the second chip from right?
I've been looking around,but can't finded what is the corect name and parameters of that one.
I want to ask which kind of resistor is missing here on the second chip from right?
I've been looking around,but can't finded what is the corect name and parameters of that one.
According to the docs: https://github.com/BitSyncom/avalon-ref/blob/master/PDF/SCH/hash_chip.pdf?raw=true
That is a 60 Ohm @ 100MHz Magnetic Ferrite Chip Bead
Hello all. After some Internet downtime(damn ISPs) and a swift relocation of my batch 3 3module avalon. I have a hard time getting uptime. The ethernet connection is unbelivably slow and disconnects and connects all the time. It took me 2hours to connect it to the WIFI. It was up to about 68gh/s for one hour, and then died. Now im having a hard time acsessing the web interface. Anybody got any idea whats causing this slow/briken connection on the ethernet between my avalon and my ubuntu laptop? thanks.
http://i.imgur.com/OlJOgGe.jpg?1
I want to ask which kind of resistor is missing here on the second chip from right?
I've been looking around,but can't finded what is the corect name and parameters of that one.
I want to ask which kind of resistor is missing here on the second chip from right?
I've been looking around,but can't finded what is the corect name and parameters of that one.
I just had an avalon that was running fine for weeks suddenly stop working 
Red/yellow lights are on. The miner starts but it never does any work (hashrate is 0)
Where should I start looking for the problem?
Red/yellow lights are on. The miner starts but it never does any work (hashrate is 0)
Where should I start looking for the problem?
I had one do something similar. It turned out to be a bad USB cable connection inside of the case. The cable that runs from the built-in router to the front of the case makes poor contact with the hub where all of the power and data cables connect. Try pushing the cable to the right or left of the socket. My theory is the vibration of the fans eventually wiggled the cable enough to get it to disconnect. Good luck!
I just had an avalon that was running fine for weeks suddenly stop working
Red/yellow lights are on. The miner starts but it never does any work (hashrate is 0)
Where should I start looking for the problem?
Red/yellow lights are on. The miner starts but it never does any work (hashrate is 0)
Where should I start looking for the problem?
Start with the power supply.
A huge bright spark came from inside my avalon twice.
Definitely not good. What do your match_work_count numbers in Cgminer API Log look like now after a few hours of runtime? Are they equal or disproportionate?
I just had an avalon that was running fine for weeks suddenly stop working
Red/yellow lights are on. The miner starts but it never does any work (hashrate is 0)
Where should I start looking for the problem?
Red/yellow lights are on. The miner starts but it never does any work (hashrate is 0)
Where should I start looking for the problem?
Quote
I noticed the HW rate is higher than the "Accepted" shares.
Accepted is a useless statistic here; look at DiffA.Error % = HW * 100.0 / (DiffA + HW)
Actually it's easy these days, install the 20130821 firmware from Con and have a look at the Device Hardware% line in Status -> Cgminer API Log:
Quote
I noticed the HW rate is higher than the "Accepted" shares.
Accepted is a useless statistic here; look at DiffA.Error % = HW * 100.0 / (DiffA + HW)
Any thoughts on why any particular unit might be making a clicking sound occasionally? Can't isolate where the sound is from.. no weird operation.. running better than ever.. thoguhts? Potential PSU problem? ETc..
Check your fans. What else could make clicking sound? That is the only moving part of the box.
Any thoughts on why any particular unit might be making a clicking sound occasionally? Can't isolate where the sound is from.. no weird operation.. running better than ever.. thoguhts? Potential PSU problem? ETc..
What's the hashrate with the wire mod @400 or 460Mhz? I got a 1000W PSU on a 3 Module machine, how far will it get me?
@460Mhz 36Ghs per module.
~144GHs for a 4 module unit. This consumes about 1700watt at the wall.
3 Modules should get you 108Ghs and you would need a 1200 watt supply at minimum.
Also the wire mod alone will not get you any where near 400mhz. you need to hardware adjust your voltage up to at least 1.3 volts (im at 1.36v) and you must do something about cooling!!!!!!
Cooling shouldn't be an issue, mine are already water cooled (see my sig).
However I have to calculate if the increase justifies soldering around on my Avalons - also I have to solder it back one day probably...
28 Ghash more is not little, but I need to buy new PSU's and after all I could just buy some ASICMINER blades for 10btc which will give me more hashrate at less power consumption.
I'm not sure if this has already been asked (if so please just ignore my post and my apologies in advance) but with 07-23-13 firmware (latest on the avalon wiki page) I noticed the HW rate is higher than the "Accepted" shares. For example with 4 day uptime I get HW=137438 Accepted=66266
This is with cgminer 3.3.1 which is the stock cgminer that comes with 07-23.
The miner seems to be hashing fine and as far as I can tell there is no degradation in performance at the pool level. So it must be something with the way cgminer 3.3.1 does things I suppose.
I should mention that I use the --avalon-auto flag and it hovers typically around the 340 to 350 MHz mark. Temp is never above 50C for Temp3, Temp2 is 50, Temp1 is 27.
This is with cgminer 3.3.1 which is the stock cgminer that comes with 07-23.
The miner seems to be hashing fine and as far as I can tell there is no degradation in performance at the pool level. So it must be something with the way cgminer 3.3.1 does things I suppose.
I should mention that I use the --avalon-auto flag and it hovers typically around the 340 to 350 MHz mark. Temp is never above 50C for Temp3, Temp2 is 50, Temp1 is 27.
i just upgraded to cgminer 8/21/13 and now 2 of my 3 avalons have yellow flashing lights even though they appear to be hashing just fine.
anyone else notice this and what does it mean?
anyone else notice this and what does it mean?
https://bitcointalksearch.org/topic/m.3004093
spiccioli
What's the hashrate with the wire mod @400 or 460Mhz? I got a 1000W PSU on a 3 Module machine, how far will it get me?
@460Mhz 36Ghs per module.
~144GHs for a 4 module unit. This consumes about 1700watt at the wall.
3 Modules should get you 108Ghs and you would need a 1200 watt supply at minimum.
Also the wire mod alone will not get you any where near 400mhz. you need to hardware adjust your voltage up to at least 1.3 volts (im at 1.36v) and you must do something about cooling!!!!!!
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