Author

Topic: Avalon ASIC users thread - page 133. (Read 438596 times)

legendary
Activity: 1600
Merit: 1014
July 06, 2013, 01:42:16 AM
Increased the water temperatur and frequency a bit... HW error now 1.3%





Still the frequency doesn't move by itself.

With such a high hashrate over Stratum, what's a normal accepted / rejected ratio for a pool? I seem to be running below 90% which seems bad...

I don't know - but I am on the other end of the world and slush's pool is working fine for me...
full member
Activity: 177
Merit: 100
July 06, 2013, 01:21:58 AM
With such a high hashrate over Stratum, what's a normal accepted / rejected ratio for a pool? I seem to be running below 90% which seems bad...
legendary
Activity: 1600
Merit: 1014
July 06, 2013, 01:14:44 AM
give it a little more time, I notice it climbs up slowly...

Gave it over night, same result at similar HW error rate

maybe it is waiting for fan readings?
and because you don't have them, it doesn't work?
is it possible you attach the fans, to see if that helps?

nope, invader was so nice to make that clear in the code here https://bitcointalksearch.org/topic/m.2655790
sr. member
Activity: 473
Merit: 250
Sodium hypochlorite, acetone, ethanol
July 06, 2013, 12:45:46 AM
give it a little more time, I notice it climbs up slowly...

Gave it over night, same result at similar HW error rate

maybe it is waiting for fan readings?
and because you don't have them, it doesn't work?
is it possible you attach the fans, to see if that helps?
legendary
Activity: 2450
Merit: 1002
July 06, 2013, 12:33:45 AM
give it a little more time, I notice it climbs up slowly...

Gave it over night, same result at similar HW error rate

you gave it overnight yet only 25k diff 1 share equivilant...that dont add up =P
legendary
Activity: 1600
Merit: 1014
July 06, 2013, 12:32:25 AM
give it a little more time, I notice it climbs up slowly...

Gave it over night, same result at similar HW error rate
legendary
Activity: 2450
Merit: 1002
July 06, 2013, 12:31:22 AM
give it a little more time, I notice it climbs up slowly...
legendary
Activity: 1600
Merit: 1014
July 06, 2013, 12:21:40 AM
I just don't get the --avalon-auto function working



I don't know what I am doing wrong. According to my calculations this should be ~1.2% HW errors, so why the frequency doesn't go up? Does the controller wait for a certain temperature to be reached?
This is a water cooled unit.

Settings:



I also tried "--avalon -auto", which doesn't work at all
sr. member
Activity: 277
Merit: 254
July 06, 2013, 12:14:57 AM
So, suddenly, in the middle of the night, my Avalon stopped working (latest ckolivas' firmware, default clock, default settings). In the morning I found out I can not connect to its IP, it was not hashing on the pool, and I had to turn it off and on again to restart it. Is there anything I can do to get information what actually happened?

Are there any logs that are kept over the reboot? Or can this be set so?
legendary
Activity: 3878
Merit: 1193
July 05, 2013, 11:02:18 PM
Can I just take a step back now and point out to people there is absolutely no way I could have developed the avalon code to this level of maturity and features if I didn't have one myself. Avalon themselves offered me only one module to develop on, or to deliver me one quickly if I purchased one at a slight discount, and this was only at Xiangfu's insistence, who was their developer and understands how important developer access to hardware is. I'm certainly not happy that I actually had to pay for it since I never intended to be one of their customers effectively doing the software for their hardware for free, so I was torn about whether I should or not, but ultimately knowing it would pay itself off anyway I gave in.

Great firmware. Keep up the good work. Here's my 1 btc donation.
full member
Activity: 182
Merit: 100
July 05, 2013, 10:51:21 PM
A huge thank you for your dev work on cgminer and the customizations for the avalon. The July 3 firmware is rock solid, running for 4+ hrs on my units without restarts. The auto-overclocking is just way cool too.

1 BTC donation sent your way.

Keep up the great work!
Thanks  Smiley

Can I just take a step back now and point out to people there is absolutely no way I could have developed the avalon code to this level of maturity and features if I didn't have one myself. Avalon themselves offered me only one module to develop on, or to deliver me one quickly if I purchased one at a slight discount, and this was only at Xiangfu's insistence, who was their developer and understands how important developer access to hardware is. I'm certainly not happy that I actually had to pay for it since I never intended to be one of their customers effectively doing the software for their hardware for free, so I was torn about whether I should or not, but ultimately knowing it would pay itself off anyway I gave in.

I agree entirely with your position. A company interested in optimizing the product to drive future sales would do exactly what you suggested and more.

One quick feature request. Is it possible to display the calculated HW error rate in the status page, say 5min avg and running avg?
-ck
legendary
Activity: 4088
Merit: 1631
Ruu \o/
July 05, 2013, 09:47:37 PM
A huge thank you for your dev work on cgminer and the customizations for the avalon. The July 3 firmware is rock solid, running for 4+ hrs on my units without restarts. The auto-overclocking is just way cool too.

1 BTC donation sent your way.

Keep up the great work!
Thanks  Smiley

Can I just take a step back now and point out to people there is absolutely no way I could have developed the avalon code to this level of maturity and features if I didn't have one myself. Avalon themselves offered me only one module to develop on, or to deliver me one quickly if I purchased one at a slight discount, and this was only at Xiangfu's insistence, who was their developer and understands how important developer access to hardware is. I'm certainly not happy that I actually had to pay for it since I never intended to be one of their customers effectively doing the software for their hardware for free, so I was torn about whether I should or not, but ultimately knowing it would pay itself off anyway I gave in.
legendary
Activity: 1764
Merit: 1002
July 05, 2013, 09:32:37 PM
Whats an acceptable HW error %?  Im getting roughly 1.5%. 

anything under 2%
legendary
Activity: 1764
Merit: 1002
July 05, 2013, 09:30:35 PM
finally got it.  man, my eyesight must be getting bad.  made the mistake of trying to match up hole shapes.

but now finally in optimum configuration.  temps are much lower after externalizing the psu's.  allowed me to go into full --avalon -auto.
-ck
legendary
Activity: 4088
Merit: 1631
Ruu \o/
July 05, 2013, 09:14:40 PM
con,

is a vardiff of 236 getting too high?
Strictly speaking, there's no such thing as "too high". The higher the diff, the less communication you will have with the pool. The disadvantage is progressively greater variance in how much you get paid till the ultimate variance when your difficulty is as high as solo mining. OOC did the analysis and for variance to not look more than 1% and still reap the benefit of lower communications, you need to have a diff where you submit about 20-24 shares per minute. That works out to about a diff of 56 for one avalon.
E
full member
Activity: 234
Merit: 100
July 05, 2013, 09:05:50 PM
Real world efficiency report:

Batch 2 Avalon, Delivered ~22 Jun 2013
Stock Enermax "Chiyan Gold Magic 750W" (Iffy translation)
http://www.enermax.cn/Products_Pages.asp?ID=198&SortID=1
  • All Japanese 105C Capacitors
  • 62A +12V (Single Rail)
  • 87Plus Ready - Efficiency "Up to 93%"

Unless I'm mistaken, this is the same platform as the Corsair TX750M but with derated +3.3V and +5V (20A vs. 30A)

I've been running ckolivas-releases firmware, mainly at a clock of 325MHz but moving up to ~350 recently; my AC supply is ~119volts at the wall under load.

Anyway, net/net for that time period is:

227KWh for 29.43BTC, or ~28MJ/BTC. My electric cost for this will be $13.3, so this is profitable for BTC > $0.45, or at $70/BTC it is profitable to a difficulty of ~3Billion.

E

edit: I paid ~ 76BTC for this Avalon, so it is almost halfway to recovering its cost.
sr. member
Activity: 342
Merit: 250
July 05, 2013, 08:56:06 PM
Whats an acceptable HW error %?  Im getting roughly 1.5%. 
legendary
Activity: 3080
Merit: 1080
July 05, 2013, 08:43:13 PM
guys, i need some help.

i removed the Enermax psu from the avalon but couldn't find any connectors in the cords included with my Seasonic that would fit the 2 white EPS ports shown in this picture.  

is my only option to go out and buy special pci-e cords that have this type of plug on this end?  i'm very surprised that my Seasonic didn't come supplied with these.  am i missing something?



Those are the connectors you normally connect to a PC's motherboard to power the CPU - ie 8pin CPU connector. Your power supply should come with at least one! It is possible that your PSU is old enough that it was produced before manufacturers adopted the 12VEPS standard (which by the way is a server environment standard).

Oh also, a lot of motherboards come with a 4+4 connectors. You just join the two and they become 8 pin.

Edit: oops..did not notice ebereon's post. Just follow the link he posted and it will clear things up for sure.
full member
Activity: 182
Merit: 100
July 05, 2013, 08:19:50 PM
--avalon-auto seams working now, maybe I just was too impatient. I just don't get the results I wanted with my water cooling, frequency is on 354 now with the auto option. I am thinking of applying thermal paste to the back and an aluminum plate to the front which really presses the chips down onto the heatsink.
Heat's not the rate limiting thing for frequency it seems. In cold weather mine isn't getting hot but I can't get it up much past 355. The chips probably need a voltage mod to run at higher frequencies than that, but at least you've sorted out the heat side.

Con,

A huge thank you for your dev work on cgminer and the customizations for the avalon. The July 3 firmware is rock solid, running for 4+ hrs on my units without restarts. The auto-overclocking is just way cool too.

1 BTC donation sent your way.

Keep up the great work!

sr. member
Activity: 397
Merit: 500
July 05, 2013, 08:08:42 PM
guys, i need some help.

i removed the Enermax psu from the avalon but couldn't find any connectors in the cords included with my Seasonic that would fit the 2 white EPS ports shown in this picture.  

is my only option to go out and buy special pci-e cords that have this type of plug on this end?  i'm very surprised that my Seasonic didn't come supplied with these.  am i missing something?

Please go to that website: http://www.seasonicusa.com/Platinum_Series.htm
Select your PSU and scroll to the bottom of the page. Here you will see the last picture and it shows the 2. and 3. cable (EPS12V), that is what you need to plug in to the white connectors.

In hope...
ebereon  Wink
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