Author

Topic: Avalon ASIC users thread - page 124. (Read 438596 times)

full member
Activity: 242
Merit: 100
July 10, 2013, 11:09:08 AM
Just finished modification of my black box Smiley
I applied arctic cooling mx-4 on heatsink's bottom of the modules. (~10g used on 3 modules)
Fan1 (replaced with Scythe Glide Stream) and additional fan ran at full speed (~1900 rpm)
PSU external.
Case closed.
FrequencyFan1Fan2Fan3Temp1Temp2Temp3
350024002400284647
HW errors: 1.5%
724W from wall. (~85% load (efficiency level 88%) of Stock 80+ gold rated 750W PSU ENM750EWT-S RG)
And Now temps and fan speed in acceptable range Smiley

newbie
Activity: 28
Merit: 0
July 10, 2013, 11:07:03 AM
Just a quick report that my Batch 1 has been running for over 7 days at 349-357 mhz using the latest 703 firmware and the  --avalon-auto switch. I've upgraded the PSU to a 1200w Cosair  (too tight of a fit, in hindsight)  and the killawatt shows it pulling 710~ watts from the wall.  Temp is set at 50 and the unit has not gone over 51c in the past 7 days. 



Average speed has been 83.25 GHash - nice!

Thanks to Ckolivas!

Kneedle
legendary
Activity: 1246
Merit: 1002
July 10, 2013, 10:57:21 AM
For me cgminer doesn't start when I try and add commands. Commands I have tried:

--avalon-auto
--avalon-freq
--avalon-fan

cgminer only seems to work with the default --quiet command

any ideas?

My Avalon is several firmware revisions behind.  I will flash it soon. 

hero member
Activity: 682
Merit: 500
July 10, 2013, 10:55:12 AM
For me cgminer doesn't start when I try and add commands. Commands I have tried:

--avalon-auto
--avalon-freq
--avalon-fan

cgminer only seems to work with the default --quiet command

any ideas?
legendary
Activity: 1246
Merit: 1002
July 10, 2013, 10:50:57 AM
Does anyone have any tips for getting the side panel back on?  I just spent like an hour trying to get all the screws to line up, stay in place, and tighten up.  I still have 3 that screwed in all sideways and I can't get to straighten out.

I had the panel off because the top fan was making a racket.  I put in a cable tie to hold back all the cables away of the fan. There was also an extra nut bouncing around in the case (must have been dropped in during assembly).  Everything's working great now but man those screws are a royal pain.

I put a strip of tape on both sides of the "nuts" or whatever they are to hold them in place, worked great. I tried to do it without first too, it's not fun when the last one falls in..

As a routine matter, I am careful not to press against the threads when I back a screw out of an instrument.  I loosened the screw a half turn, then backed them out by hand.  The nuts did not fall out for me until I tapped one with my finger.  I used a bamboo skewer to hold it in place while I started the screw back in, and turned it by sliding my fingertip sideways so that the slots aligned.

The second time I removed the top, I did knock one loose.  I used two of the skewers like chopsticks and plucked it out of the bottom of the Avalon.

I really like the foam jig idea.  Jigs are great, I always forget to make them.

When re-attaching, I turn every other screw so that it is not loose, then finish all the others.  Then I turn them to where they are just starting to snug.  Then I try to wiggle the  case to anneal the alignment.  Then I tighten it down to snug.  My torque wrench is packed for moving, and I don't know the torque specification anyway, but my step-dad was a mechanic and I worked with lab instruments a long time, so I think I did ok just by "feel."

I think some of the screws were over tightened at the factory.  The lock washers were flattened, and the aluminum plate was severely galled in a few instances.
hero member
Activity: 658
Merit: 500
July 10, 2013, 10:33:59 AM
Just curious. Does anyone successfully mine on p2pool with his avalon?

I tried the newest firmware and the newest p2pool, but failed totally. Searched but no affirmatory.

The http://p2pool.info/ active user list shows few in range of 66GH/s(stock 3-module)  to 112GH/s(overclocked 4-module).

it doesn't work, well. still  20% DOA.

Even with tweaking timeout to return work quicker with cgminer and stratum tweaks. The new protocol change may make it slightly better.

Also you need ridiculous CPU power to handle 1 avalon.
full member
Activity: 226
Merit: 100
July 10, 2013, 09:51:33 AM
latest firmware with batch1 external PSU 1200W
50Celsius with 340-360MHz stable for 3 days now:)
thanks ckolivas (donation on your way)
donator
Activity: 1617
Merit: 1012
July 10, 2013, 07:45:59 AM
Is there anyone who tried except with watercooling to mod their unit to be less noisy? Maybe like try other fans or such? The noise is driving my kids crazy and I didn't think they could get crazier. Proofed me wrong...  Embarrassed
My batch 2 unit was definitely noisier than my batch 1. It seems to me like my batch 1 unit was dissipating a lot more heat through the bottom aluminum plate of the case, thus requiring less work from the fans. The bottom of the batch 2 case was a little warm whereas the batch 1 case was almost too hot to touch.

The batch 2 heat sink is of a different design and has small ridges on the surface that mates with the case. This reduces thermal dissipation through the bottom of the case.

I made my batch 2 unit a little quieter by applying Arctic Ceramique 2 between the heat sinks and the case. I needed 3 x 2.5g tubes - one per hasher.

Edit: I used Ceramque because it is non-conductive. It is easy to make a mess while screwing the heat sinks back to the case because the holes are not easy to align.
sr. member
Activity: 406
Merit: 250
ALGORY.io Crowdsale starts on 8/12/2017
July 10, 2013, 07:27:23 AM
Just curious. Does anyone successfully mine on p2pool with his avalon?

I tried the newest firmware and the newest p2pool, but failed totally. Searched but no affirmatory.

The http://p2pool.info/ active user list shows few in range of 66GH/s(stock 3-module)  to 112GH/s(overclocked 4-module).
riX
sr. member
Activity: 326
Merit: 254
July 10, 2013, 04:11:56 AM
Is there anyone who tried except with watercooling to mod their unit to be less noisy? Maybe like try other fans or such? The noise is driving my kids crazy and I didn't think they could get crazier. Proofed me wrong...  Embarrassed

Try setting the clock frequency to auto and the fanspeed to a lower fixed value, might work depending on ambient temp etc.
riX
sr. member
Activity: 326
Merit: 254
July 10, 2013, 04:05:23 AM
Does anyone have any tips for getting the side panel back on?  I just spent like an hour trying to get all the screws to line up, stay in place, and tighten up.  I still have 3 that screwed in all sideways and I can't get to straighten out.

I had the panel off because the top fan was making a racket.  I put in a cable tie to hold back all the cables away of the fan. There was also an extra nut bouncing around in the case (must have been dropped in during assembly).  Everything's working great now but man those screws are a royal pain.

I put a strip of tape on both sides of the "nuts" or whatever they are to hold them in place, worked great. I tried to do it without first too, it's not fun when the last one falls in..
newbie
Activity: 44
Merit: 0
July 10, 2013, 04:04:40 AM
Is there anyone who tried except with watercooling to mod their unit to be less noisy? Maybe like try other fans or such? The noise is driving my kids crazy and I didn't think they could get crazier. Proofed me wrong...  Embarrassed
legendary
Activity: 1764
Merit: 1002
July 10, 2013, 03:16:42 AM
i've done it more times than i could count... thought i bricked one once but a quick hard reboot solved it all



Isn't rebooting during a flash pretty much the worst possible idea?  Tongue

I've done this a million times on server hardware. Never with an ASIC. The downtime in case of an issue and probable lack of being able to return it is what scares me.

All you are flashing is the router really =) nothing else. It should be fine, I doubt it has a very high failure rate... I havent heard of any known flashing failures on avalon, under normal conditions.
But yeah, its just like flashing a mobo, same chances of failing I suppose... which over my PC career seems to be 1% of flashes I do, something breaks =P

It actually happened to me. The reality is that the TPLINK routers in these things are not 100% perfect and some of them will have some minor failures and defects. So, in the rare event that this happens to you I STRONGLY suggest you get yourself a Raspberry Pi as a backup mining device.

Can you explain a bit more on how you'd set this up with the pi?
legendary
Activity: 2450
Merit: 1002
July 10, 2013, 02:04:14 AM
Will the avy turn on & run if it doesnt detect PWM fans installed? Im considering a couple high end delta fans like:
http://www.newegg.com/Product/Product.aspx?Item=N82E16835213001

Which utilize good ol fashion molex for power + 3 pin for RPM sensing. Will the avy work fine w/ one of these or does it require PWM fans to run?
hero member
Activity: 826
Merit: 1001
July 10, 2013, 12:58:56 AM
Does anyone have any tips for getting the side panel back on?  I just spent like an hour trying to get all the screws to line up, stay in place, and tighten up.  I still have 3 that screwed in all sideways and I can't get to straighten out.

I had the panel off because the top fan was making a racket.  I put in a cable tie to hold back all the cables away of the fan. There was also an extra nut bouncing around in the case (must have been dropped in during assembly).  Everything's working great now but man those screws are a royal pain.
Cut little pieces of foam and put it under all nuts before putting on the lid. Remove them when you're done.
member
Activity: 69
Merit: 10
July 10, 2013, 12:46:22 AM
Does anyone have any tips for getting the side panel back on?  I just spent like an hour trying to get all the screws to line up, stay in place, and tighten up.  I still have 3 that screwed in all sideways and I can't get to straighten out.

I had the panel off because the top fan was making a racket.  I put in a cable tie to hold back all the cables away of the fan. There was also an extra nut bouncing around in the case (must have been dropped in during assembly).  Everything's working great now but man those screws are a royal pain.
legendary
Activity: 1112
Merit: 1000
July 10, 2013, 12:37:53 AM
After flashing to the July update, my HW errors went from 3ish percent to now 30%. I'm thinking I will revert...
How are you calculating this?

Quote
The correct formula to calculate HW% (with cgminer fieldnames) is: 100 * HW / (diff1shares + HW)
-ck
legendary
Activity: 4088
Merit: 1631
Ruu \o/
July 10, 2013, 12:25:44 AM
After flashing to the July update, my HW errors went from 3ish percent to now 30%. I'm thinking I will revert...

That makes no sense =/
He's doing the usual and counting against accepted shares instead of diff1shares.
legendary
Activity: 2450
Merit: 1002
July 09, 2013, 11:10:23 PM
After flashing to the July update, my HW errors went from 3ish percent to now 30%. I'm thinking I will revert...

That makes no sense =/
legendary
Activity: 1470
Merit: 1021
July 09, 2013, 11:03:52 PM
After flashing to the July update, my HW errors went from 3ish percent to now 30%. I'm thinking I will revert...
Jump to: