Bitcoin Forum
June 28, 2024, 05:04:47 PM *
News: Latest Bitcoin Core release: 27.0 [Torrent]
 
   Home   Help Search Login Register More  
Bitcoin Forum > Bitcoin > Mining > Mining support > Spitting errors on Pi
Warning: One or more bitcointalk.org users have reported that they believe that the creator of this topic displays some red flags which make them high-risk. (Login to see the detailed trust ratings.) While the bitcointalk.org administration does not verify such claims, you should proceed with extreme caution.
Pages: [1]
« previous topic next topic »
  Print  
Author Topic: Spitting errors on Pi  (Read 1419 times)
gravitate (OP)
Legendary
*
Offline Offline

Activity: 1372
Merit: 1000


View Profile
August 25, 2013, 01:17:13 PM
 #1
I have a pi running on minepeon with cgminer. I have 2 d link hubs with 6 eruptors in each. The pi has a power supply as do both the hubs. I use the 7th port on one of the hubs to connect the 2. I also have a fan on as close as I can get. However I am getting around 30% errors. Has anyone had the same issue with this or any advice?
To peel or not to peel.
Mitchell
Copper Member
Legendary
*
Offline Offline

Activity: 3962
Merit: 2207


Verified awesomeness ✔


View Profile WWW
August 25, 2013, 01:18:56 PM
 #2
You connected a hub to a hub? I don't think that is a good idea. Could decrease data transfer and increase problems, but I could be wrong.
.
Duelbits		            ▄████▄▄
          ▄█████████▄
        ▄█████████████▄
     ▄██████████████████▄
   ▄████▄▄▄█████████▄▄▄███▄
 ▄████▐▀▄▄▀▌██▄█▄██▐▀▄▄▀▌███
 ██████▀▀▀▀████▀███▀▀▀▀█████
▐████████████■▄▄▄■██████████▀
▐██████████████████████████▀
██████████████████████████▀
▀███████████████████████▀
  ▀███████████████████▀
    ▀███████████████▀		.
         ▄ ▄▄▀▀▀▀▄▄
         ▄▀▀▄      █
         █   ▀▄     █
       ▄█▄     ▀▄   █
      ▄▀ ▀▄      ▀█▀
    ▄▀     ▀█▄▄▄▀▀ ▀
  ▄▀  ▄▀  ▄▀

Live Games
   ▄▄▀▀▀▀▀▀▀▄▄
 ▄▀ ▄▄▀▀▀▀▀▄▄ ▀▄
▄▀ █ ▄  █  ▄ █ ▀▄
█ █   ▀   ▀   █ █  ▄▄▄
█ ▀▀▀▀▀▀▀▀▀▀▀▀▀ █ █   █
█▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀█  █▄█
█ ▀▀█  ▀▀█  ▀▀█ █  █▄█

Slots		.
        ▄▀▀▀▀▀▀▀▀▀▀▀▀▀▄
        █         ▄▄  █
▄▀▀▀▀▀▀▀▀▀▀▀▀▀▄       █
█  ▄▄         █       █
█             █       █
█   ▄▀▀▄▀▀▄   █       █
█   ▀▄   ▄▀   █       █

Blackjack		|█▀▀▀▀▀█▄▄▄
       ▀████▄▄
         ██████▄
▄▄▄▄▄▄▄▄█▀    ▀▀█
████████▄        █
█████████▄        █
██████████▄     ▄██
█████████▀▀▀█▄▄████
▀▀███▀▀       ████
   █          ███
   █          █▀
▄█████▄▄▄ ▄▄▀▀
███████▀▀▀
.
                 NEW!                  
SPORTS BETTING 
|||
[ Đ ][ Ł ]
AVAILABLE NOW

Advertisements are not endorsed by me.
ct1aic
Hero Member
*****
Offline Offline

Activity: 714
Merit: 500


Are ฿itcoins Radioactive?


View Profile WWW
August 25, 2013, 01:28:07 PM
Last edit: August 25, 2013, 01:38:13 PM by ct1aic
 #3
Please verify the power units that you are using with the HUB's. 6 USB Block erupters need a minimum of 6*510mA=3,06Amperes@5volts or ~15W. And the HUB needs also some current for it to work.

As I can see on D-Link DUB-H7 7 Ports HUB's specifications, "It is recommended that the combined power consumption on all ports should not exceed 2A or 10W.". Link to Amazon

The RPI needs more or less 1 ampere.


Quote
USB Block Erupter: Power consuption: ~510mA --> ~2,5W
Rui Costa, Portugal -  BTC : 1ct1aicGoUVpZeovsw3cCcPJZJHV5JXtW
gravitate (OP)
Legendary
*
Offline Offline

Activity: 1372
Merit: 1000


View Profile
August 25, 2013, 01:31:32 PM
 #4
power supply to the hubs is 3A each and the pi has its own power supply
To peel or not to peel.
ct1aic
Hero Member
*****
Offline Offline

Activity: 714
Merit: 500


Are ฿itcoins Radioactive?


View Profile WWW
August 25, 2013, 01:39:52 PM
 #5
Quote from: gravitate on August 25, 2013, 01:31:32 PM
power supply to the hubs is 3A each and the pi has its own power supply
Try to use only 5 USB Block Erupters in each HUB to see if it is something about the current needed by them.
Rui Costa, Portugal -  BTC : 1ct1aicGoUVpZeovsw3cCcPJZJHV5JXtW
-ck
Legendary
*
Offline Offline

Activity: 4144
Merit: 1638


Ruu \o/


View Profile WWW
August 25, 2013, 02:32:34 PM
 #6
How are you counting errors? Don't compare an absolute value (HW) to a relative one (accepted)
Developer/maintainer for cgminer, ckpool/ckproxy, and the -ck kernel
2% Fee Solo mining at solo.ckpool.org
-ck
gravitate (OP)
Legendary
*
Offline Offline

Activity: 1372
Merit: 1000


View Profile
August 25, 2013, 04:43:34 PM
 #7
I'm counting the errors by the proportion of accepts. I.e. for every 100 accepts I get something like 30 errors and in my pool it shows way under my Mhash/s
To peel or not to peel.
sephtin
Newbie
*
Offline Offline

Activity: 47
Merit: 0



View Profile
August 25, 2013, 05:53:09 PM
 #8
Daisy chaining hubs isn't an issue.

As others have said, you're probably going over on power.  I run those DLink hubs with 5x BE's in each, and a USB fan on one of the hubs to cool all of them...  My HWerror rate is under 1%.

I had stability issues running MinePeon, so I switched to PIckaxe... but I believe stability is much improved in MinePeon 0.2.3a or so.. ?
gravitate (OP)
Legendary
*
Offline Offline

Activity: 1372
Merit: 1000


View Profile
August 26, 2013, 05:07:08 AM
 #9
I put an 2 extra hubs in to take 2 eruptors and 1 to relay them to the pi. the errors have gone down to 20% now. Still not what I had hoped but better I suppose Sad
To peel or not to peel.
Pages: [1]
  Print  
Bitcoin Forum > Bitcoin > Mining > Mining support > Spitting errors on Pi
 « previous topic next topic »
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!