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Topic: Avalon ASIC users thread - page 118. (Read 438516 times)

legendary
Activity: 1064
Merit: 1000
July 15, 2013, 12:29:52 AM
Guys, guys, there are no shortcuts. As a student of DE, I need to leave this here and If you have a problem with simple tasks you should take a look. If not, watch as well, its quite entertaining.

http://www.youtube.com/watch?v=eoOUBETTyMI
legendary
Activity: 1764
Merit: 1002
July 15, 2013, 12:11:38 AM
I just had a huge scare I thought I'd share.

The week I was receiving my Avalon's (3), I was moving houses.  At the new house, there was a pre-built shelf in the basement by one of the windows.  I thought, "Great, I'll pop open the window and my Avalon's can vent hot air directly out the window!"  The idea was to pull cool air from the basement and push the hot air out the window.  Great plan.

I went ahead and ran a 240v circuit over to the window and ran Ethernet over.  On the day I was moving the equipment, I quickly pulled down each Avalon from the old house and ran then over and hooked them up.  All was great.  I had three Avalons, two side-by-side and the third stacked on top.  The 240v circuit ran all three boxes at about 10amps and I added a switch so I could hard wire all the boxes.

Over the next week, everything was great.  The boxes were staying cool and the fans were running much lower than at the other house.

Then comes today.  I was taking a nap in the afternoon on the couch.  I awoke to the sound of raindrops and all I saw out the window was gray.  It was a good storm.  I called out to my wife, "I hope you didn't leave any windows open at the old house."  After sitting for another 10 minutes or so, I finally got up from the couch and meandered down to the basement to play some Defiance that I just bought on Steam.

As I came to the bottom of the stairs, the horrible realization dawned on me that my Avalon's were still venting out the window.  I rushed to the window to see a puddle of water covering over half of the top Avalon that was stacked sideways across the other two.  I looked at the boxes and saw three green lights.

I booked it up stairs and grabbed the first towel I could find.  I ran back down and threw the towel on top of the Avalon's and immediately switched off the power to each box (in hindsight I should have done this first).  I yanked the power cords and took each box down and quickly wiped each off with a towel and set them power supply side down.

I looked over at the ledge that the boxes had been sitting on.  There was another puddle of water with more dripping from the top of the window.  It was a mess.

I carefully wiped down all the boxes and after a bit of air drying, I cautiously took a blow dryer to the PSUs and made sure that they were completely dry.  I moved to boxes to the other part of the basement and plugged in the first one.  Green light.  I checked the stats, and it was hashing.  I grabbed the second and did the same.  Green and yellow lights, but it came up and started hashing.  The third box (the one with the puddle of water) is still unplugged.

I now realize that I'm going to have to somewhat rethink my cooling strategy.  I also think that KNC's hosted option is looking more and more attractive.

haha.

last Tuesday i decided to buy a standalone AC from Sears just like someone above had recommended.  it's a pretty big unit 75 lb unit which is all they had.  my avalons are stacked 3 high on a roller rack inside a small open door closet about 6 ft deep 3 feet wide with the fans blowing out into the hallway in my office.  i got the bright idea that i'd put the AC in the back of the closet to provide cold air into the intake fans at the back of the avalons.  note that the roller rack fills up most of the width of the closet and i can just squeeze by thru a space of about 10 inches.

anyways, these AC's produce water into a tray inside the bottom of the unit that needs to be drained at least daily if you're going to run them 24/7.  within a few hours it becomes clear that this is not going to work.  i decide i want to return it.  there was  just not enough space and despite channeling the hot air exhaust ducting out the front of the closet temps don't appear to be any lower than what i was getting with a simple floor fan.  

so, b/c i'm too lazy to pull the roller rack out of the closet b/c of the ethernet, power, server hookups, and most importantly the ongoing hashing (yes, still plugged in and working Roll Eyes), i send my strong male employee into the back of the closet thru that 10" space on the side and tell him to lift the 75lb AC unit over the top of the roller rack with the avalons and hand it to me in the hallway.  so he's struggling to lift the thing, simply b/c of all the wires to navigate around.  he begins to lose control of it as he's passing it over the top.  i quickly grab it and begin to pull it over the avalons when i hear him say "shit" and i hear the splashing of water coming out of the AC.  i quickly pull it entirely out of the closet and set it down expecting to see water all over the top avalon.  all the water missed the top avalon and fell thru that 10" space to the floor.

i learned this; i am one lazy mofo. in my defense, i had totally forgot about the water.
member
Activity: 69
Merit: 10
July 14, 2013, 11:11:33 PM
I just had a huge scare I thought I'd share.

The week I was receiving my Avalon's (3), I was moving houses.  At the new house, there was a pre-built shelf in the basement by one of the windows.  I thought, "Great, I'll pop open the window and my Avalon's can vent hot air directly out the window!"  The idea was to pull cool air from the basement and push the hot air out the window.  Great plan.

I went ahead and ran a 240v circuit over to the window and ran Ethernet over.  On the day I was moving the equipment, I quickly pulled down each Avalon from the old house and ran then over and hooked them up.  All was great.  I had three Avalons, two side-by-side and the third stacked on top.  The 240v circuit ran all three boxes at about 10amps and I added a switch so I could hard wire all the boxes.

Over the next week, everything was great.  The boxes were staying cool and the fans were running much lower than at the other house.

Then comes today.  I was taking a nap in the afternoon on the couch.  I awoke to the sound of raindrops and all I saw out the window was gray.  It was a good storm.  I called out to my wife, "I hope you didn't leave any windows open at the old house."  After sitting for another 10 minutes or so, I finally got up from the couch and meandered down to the basement to play some Defiance that I just bought on Steam.

As I came to the bottom of the stairs, the horrible realization dawned on me that my Avalon's were still venting out the window.  I rushed to the window to see a puddle of water covering over half of the top Avalon that was stacked sideways across the other two.  I looked at the boxes and saw three green lights.

I booked it up stairs and grabbed the first towel I could find.  I ran back down and threw the towel on top of the Avalon's and immediately switched off the power to each box (in hindsight I should have done this first).  I yanked the power cords and took each box down and quickly wiped each off with a towel and set them power supply side down.

I looked over at the ledge that the boxes had been sitting on.  There was another puddle of water with more dripping from the top of the window.  It was a mess.

I carefully wiped down all the boxes and after a bit of air drying, I cautiously took a blow dryer to the PSUs and made sure that they were completely dry.  I moved to boxes to the other part of the basement and plugged in the first one.  Green light.  I checked the stats, and it was hashing.  I grabbed the second and did the same.  Green and yellow lights, but it came up and started hashing.  The third box (the one with the puddle of water) is still unplugged.

I now realize that I'm going to have to somewhat rethink my cooling strategy.  I also think that KNC's hosted option is looking more and more attractive.
legendary
Activity: 1246
Merit: 1002
July 14, 2013, 08:12:06 PM
My Avalon is in a remote room with good air temperature, but without wired network access.

I configured my Avalon so that a laptop connects to the wired interface, and the WiFi connects to my router and then the world.  The laptop can pull web pages while I am in the room with the Avalon.

These are the changes I made

1. I found a small subnet for the wired interface.

2.  I set the laptop to a static network configuration:
    Address: 192.168.0.101
    Mask      255.255.255.248
    Gateway 192.168.0.97

3.  I logged into http://192.168.0.100
    network --> WiFi
      physical settings
        lan
          unclicked "wireless network" from the bridge
      scan
        join my main router's WiFi network
        uncheck new network
        radio wan
    network --> interfaces --> lan
      Address  192.168.0.97
      Mask  255.255.255.248
      Gateway  192.168.0.2   <-- my WiFi router's address.

4.  Somewhere I set the WiFi interface to "client"  I forgot what tab that is under.
    The DHCP details give some address
      Mask 255.255.255.0
      Address Range 192.168.0.xxx
      

This lets me pull web pages for reference on my laptop while connected to the Avalon wired network, and it lets me pull the web pages on the Avalon from my other local computers.

Notice that I changed the Avalon to be 192.168.0.97, and I used the Avalon address for the Gateway on my laptop.  That is using the convention that the low address on the subnet are the router or gateway.

This isn't completely finished, as I can't see the laptop from the other computers.

legendary
Activity: 1764
Merit: 1002
July 14, 2013, 07:52:31 PM
i'm puzzled why my NMW and MWC are both so low even after being up for over 30 hours.  and NMW 0?

http://i.imgur.com/CnyGxSV.png
... check Elapsed ... if it reboots or cgminer restarts, of course it wont add up to 30 hours of mining Smiley

i've taken that into account.  for some reason, on this machine, i get NMW=0 no matter how high the MWC goes.  and then the MWC never gets that high despite the Elapsed.

i know the machine is hashing and reaching the network as i'm monitoring the hashrate at the exit port, so it doesn't make sense to me.  perhaps the sensor responsible for these stats is malfunctioning?
Those stats say 800MH/s ... so clearly that isn't expected for hashing for 30 hours ...

NMW=0 is good - may or may not be what you want - but it is of course good.

If it has been hashing for 30 hours then of course you need to post the mining stats, not what you posted, to determine what it is doing.

Matching work is simply the amount of recognised work sent back to cgminer ... not sure what you mean by "sensor"

ok, same problem.  let run for an additional day and still get same NMW and MWC here:



despite these mining stats:



any ideas?

edit:  oops, i may have missed something further down:



what's the difference btwn different "[Stats0,1]"?
legendary
Activity: 1764
Merit: 1002
July 14, 2013, 09:25:38 AM
hmm, so not even deleting WWAN solved error -71 for me
despite a possible correlation between temperature and occurrence of these errors, it happened now while being on 44 C, so for sure it occurs here even when "cold"

but should I worry if that happens like 10-15x per week? can it cause any real damage in the long term?

Check to see if the f1 fuse is still onboard.
-ck
legendary
Activity: 4088
Merit: 1631
Ruu \o/
July 14, 2013, 09:13:56 AM
ckolivas
Cgminer (07/03 firmware) submit "stale" shares to a pool or discard it by default?
I found that mmpool have incredible low reject rate 0.0022% (64/2862167 diff1 and fixed difficulty = 32) but have "stale" ~0.17% (5216/2862167 diff1)
so my "stale" shares accepted by pool or not?  Huh
At any other pool I have 0.2-0.3% normal reject rate.
Cgminer submits stale shares unless you use --no-submit-stale. Some pools accept stale shares for some period after the block has changed to fake it looking like their stale rate is lower than other pools. Overall since they accept the same proportion of stales from everyone, no one actually gets paid more, it's just marketing.
sr. member
Activity: 277
Merit: 254
July 14, 2013, 05:56:05 AM
hmm, so not even deleting WWAN solved error -71 for me
despite a possible correlation between temperature and occurrence of these errors, it happened now while being on 44 C, so for sure it occurs here even when "cold"

but should I worry if that happens like 10-15x per week? can it cause any real damage in the long term?
full member
Activity: 242
Merit: 100
July 14, 2013, 05:50:20 AM
ckolivas
Cgminer (07/03 firmware) submit "stale" shares to a pool or discard it by default?
I found that mmpool have incredible low reject rate 0.0022% (64/2862167 diff1 and fixed difficulty = 32) but have "stale" ~0.17% (5216/2862167 diff1)
so my "stale" shares accepted by pool or not?  Huh
At any other pool I have 0.2-0.3% normal reject rate.
-ck
legendary
Activity: 4088
Merit: 1631
Ruu \o/
July 14, 2013, 02:32:47 AM
It's not the pool connection. Something happens and all work ends up "discarded" until cgminer is restarted. What would cause that?
It's got nowhere to go. It prepares work and then no device is working to take it so it just discards it.
newbie
Activity: 41
Merit: 0
July 14, 2013, 02:19:40 AM
Same problem here.

You have to disable wifi interface. This will unload kernel module I think. Deleting wifi interface will not help. Since than several days uptime @ 340Mhz.

So you can keep wifi network device but in menu Network->Wifi disable the device.

I think this has something to do with unattached wifi antena. I havent tried it but its possible that this problem will disappear with attached wifi antena even when not using wifi.

Thanks! Seems to work so far. Grin
legendary
Activity: 4592
Merit: 1851
Linux since 1997 RedHat 4
July 14, 2013, 01:59:21 AM
i'm puzzled why my NMW and MWC are both so low even after being up for over 30 hours.  and NMW 0?

http://i.imgur.com/CnyGxSV.png
... check Elapsed ... if it reboots or cgminer restarts, of course it wont add up to 30 hours of mining Smiley

i've taken that into account.  for some reason, on this machine, i get NMW=0 no matter how high the MWC goes.  and then the MWC never gets that high despite the Elapsed.

i know the machine is hashing and reaching the network as i'm monitoring the hashrate at the exit port, so it doesn't make sense to me.  perhaps the sensor responsible for these stats is malfunctioning?
Those stats say 800MH/s ... so clearly that isn't expected for hashing for 30 hours ...

NMW=0 is good - may or may not be what you want - but it is of course good.

If it has been hashing for 30 hours then of course you need to post the mining stats, not what you posted, to determine what it is doing.

Matching work is simply the amount of recognised work sent back to cgminer ... not sure what you mean by "sensor"

wait, where do you get 800MH/s?

i know the MWC's are in the 800's but those aren't hashing rates are they?  they accumulate over time....
Approx 840 shares per device in 30 hours.
840 * 24 * 2^32 / 30 / 60 / 60 ... 800MH/s Tongue
legendary
Activity: 3878
Merit: 1193
July 14, 2013, 01:56:44 AM
It's not the pool connection. Something happens and all work ends up "discarded" until cgminer is restarted. What would cause that?
legendary
Activity: 1764
Merit: 1002
July 14, 2013, 12:20:25 AM
I can watch MHS5s slowly drop to 0, and eventually cgminer-monitor will restart cgminer. Why is cgminer stopping hashing?
Common reasons:
Wifi kernel problem
Overdoing the overclocking
Pool failure and the cgminer-monitor watchdog is trigger happy and kills cgminer when all it's doing is waiting for a pool to come back online.
FPGA failure in the avalon.

For maximum stability while I'm away, I limited my batch 2 overclock to 333 and it's been up for a week. At 350 it would restart cgminer every 12 hours and eventually after a few days would restart the entire router.

* wifi is already disabled.
* running at a moderate 300 mhz
* other miners are connected to the pool just fine

I don't see how restarting cgminer would fix a FPGA failure. So from that list of possibilities, pool issue seems most likely. I'll set a backup pool and see if it switches to that.

also try deleting the WWAN.
legendary
Activity: 3878
Merit: 1193
July 14, 2013, 12:19:19 AM
I can watch MHS5s slowly drop to 0, and eventually cgminer-monitor will restart cgminer. Why is cgminer stopping hashing?
Common reasons:
Wifi kernel problem
Overdoing the overclocking
Pool failure and the cgminer-monitor watchdog is trigger happy and kills cgminer when all it's doing is waiting for a pool to come back online.
FPGA failure in the avalon.

For maximum stability while I'm away, I limited my batch 2 overclock to 333 and it's been up for a week. At 350 it would restart cgminer every 12 hours and eventually after a few days would restart the entire router.

* wifi is already disabled.
* running at a moderate 300 mhz
* other miners are connected to the pool just fine

I don't see how restarting cgminer would fix a FPGA failure. So from that list of possibilities, pool issue seems most likely. I'll set a backup pool and see if it switches to that.
-ck
legendary
Activity: 4088
Merit: 1631
Ruu \o/
July 14, 2013, 12:09:47 AM
I can watch MHS5s slowly drop to 0, and eventually cgminer-monitor will restart cgminer. Why is cgminer stopping hashing?
Common reasons:
Wifi kernel problem
Overdoing the overclocking
Pool failure and the cgminer-monitor watchdog is trigger happy and kills cgminer when all it's doing is waiting for a pool to come back online.
FPGA failure in the avalon.

For maximum stability while I'm away, I limited my batch 2 overclock to 333 and it's been up for a week. At 350 it would restart cgminer every 12 hours and eventually after a few days would restart the entire router.
legendary
Activity: 1764
Merit: 1002
July 14, 2013, 12:04:42 AM
i'm puzzled why my NMW and MWC are both so low even after being up for over 30 hours.  and NMW 0?

http://i.imgur.com/CnyGxSV.png
... check Elapsed ... if it reboots or cgminer restarts, of course it wont add up to 30 hours of mining Smiley

i've taken that into account.  for some reason, on this machine, i get NMW=0 no matter how high the MWC goes.  and then the MWC never gets that high despite the Elapsed.

i know the machine is hashing and reaching the network as i'm monitoring the hashrate at the exit port, so it doesn't make sense to me.  perhaps the sensor responsible for these stats is malfunctioning?
Those stats say 800MH/s ... so clearly that isn't expected for hashing for 30 hours ...

NMW=0 is good - may or may not be what you want - but it is of course good.

If it has been hashing for 30 hours then of course you need to post the mining stats, not what you posted, to determine what it is doing.

Matching work is simply the amount of recognised work sent back to cgminer ... not sure what you mean by "sensor"

wait, where do you get 800MH/s?

i know the MWC's are in the 800's but those aren't hashing rates are they?  they accumulate over time....
legendary
Activity: 3878
Merit: 1193
July 14, 2013, 12:01:32 AM
I can watch MHS5s slowly drop to 0, and eventually cgminer-monitor will restart cgminer. Why is cgminer stopping hashing?
legendary
Activity: 4592
Merit: 1851
Linux since 1997 RedHat 4
July 13, 2013, 11:52:49 PM

how about the cgminer API log?

The API log in the web interface just shows the current state of the system. Is there an actual log file somewhere else?
Well, not to be too pedantic, but my API also shows historical information ...
Just only about the current running cgminer Tongue
legendary
Activity: 4592
Merit: 1851
Linux since 1997 RedHat 4
July 13, 2013, 11:50:34 PM
i'm puzzled why my NMW and MWC are both so low even after being up for over 30 hours.  and NMW 0?

http://i.imgur.com/CnyGxSV.png
... check Elapsed ... if it reboots or cgminer restarts, of course it wont add up to 30 hours of mining Smiley

i've taken that into account.  for some reason, on this machine, i get NMW=0 no matter how high the MWC goes.  and then the MWC never gets that high despite the Elapsed.

i know the machine is hashing and reaching the network as i'm monitoring the hashrate at the exit port, so it doesn't make sense to me.  perhaps the sensor responsible for these stats is malfunctioning?
Those stats say 800MH/s ... so clearly that isn't expected for hashing for 30 hours ...

NMW=0 is good - may or may not be what you want - but it is of course good.

If it has been hashing for 30 hours then of course you need to post the mining stats, not what you posted, to determine what it is doing.

Matching work is simply the amount of recognised work sent back to cgminer ... not sure what you mean by "sensor"
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