Topic: [Work in progess] Burnins Avalon Chip to mining board service - page 18. (Read 624200 times)

I have a similar problem with miners i host for a user. My own miners and other miners i sold directly to another user are running fine at 450mhz. But these miners here not. Im now down to 430mhz and they rund faster each time in lower mhz. I dont know why. The 2 psu should mean enough power. And 3.5 miners running before had the same problem. So the only thing i can think of is that it might be different power supply parts on the board? Or are the newer cgminer-versions negative? I really dont know.

He did for sure
the problem is, that my old working till now distro is not up to date, and compiling newest cgminer is impossible.
BTB works nice @430 (@450 i`m getting just 30Ghash wit 6 units) and i`m having 50-51Ghash witch is ok for me.

I received my bitburners today order 5xx.
Nice design and layout by burnin.
I have them running on a RasPi with no problems encountered.
When I get some time I will build a CAN bus cable and update the firmware.

Order    Date                    Status    
#665            July 24, 2013    Processing

no boards
no tracking number

... but i am happy, the status is processing ...

     

I didn't think to order a power supply in advance, doh. The strongest wallwart I can find in my house I'm not using is 12V 2A. I saw burnin mention earlier in thread that a 12V 2.5A would be okay to run a single bitburner board. Would a 12V 2A work safely? I'm running a single 20 chip XX board.

We all know the story about ASIC chips delay from Yifu.
There was nothing that we could do but wait and grin and bear it.
So I did too, as did the majority of people who paid for the chips.
Unfortunately it came to a point where I can't stand it any more.

Here is a Zefir's post from his Group Buy thread...



....which means that my chips (as well as anybody else's who wasn't lucky
enough to be in Zefir batch #1 or #2) were shipped to burnin exactly one month ago.

So far I've been patient all way along and for high esteem I hold burnin at
for everything he did for the community, but now I have to vent my indignation:

IT IS UNACCEPTABLE !

One month and not a single word, an update, an email or a piece of information.

THANK YOU VERY MUCH (with irony)


PS
For my order I paid to burnin on 24th of July and no, I will not perish because of it
but it just makes me PISSED OFF the way customers are treated.




 

Not really. Most current will flow through the BTB as it has much lower input resistance than output resistance of the PSUs.

I don't recommend that. There can be huge currents flowing from one PSU to the other. The system will try to average the +12v voltage over the two PSUs - current will flow from lower voltage PSU to the PSU which has slightly bigger voltage at that moment. That current can easily overload the wires and burn them. Running BB boards on one PSU connector is close to the current rating of wires on most ATX PSU. For example I use Molex-to-PCIE cable and Molex connector is rated only for 8-10 A, which is what 2 overloclocked BB boards take, so the connectors are quite warm (but as there is enough air flowing, not hot).

I have tried to use part of cheap Molex-to-SATA cable at home (instead of SATA I connected it to the green stacking connector). The cable insulation was gone in smoke after 10 seconds... so these currents is no fun and can be dangerous if not done properly.

BTW, the same applies if you use ATX PSU with separate +12v segments and connect +12v1 to +12v2 segments together. Currents will start flowing through your connection (grounds are already connected in any PC, so they are not an issue). It is OK to run first BB with first +12v1 segment, and another with +12v2 and have them connected via CAN, but DON'T connect the power stacking cable in that case.

Should we expect delivery by the end of the month or not?

So, what happened to the orders? Still waiting on the 6xx tracking number, 300 million incoming.

Looks like you use an old cgminer version. You might update though im not sure anymore if kano implemented something for better speed of btb.

I have tried lots of ghetto-style connection setups including powering from different PSUs, different channels of a single PSU, different power connectors of the BTB (jack, ATX, power stacking connectors) at the same time. Nothing bad happened so far.

Once I even have accidentally missed the polarity when connecting power wires to stacking connector and burnt USB connector on my PC (with smell and smoke! Wrong polarity connection caused short circuit from PSU +12V to ground via the board, USB cable and PC). The BitBurner still working though!

burnin, is there any chance to see the firmware source code?

I was thinking about how to get redundant power supply for my XXs.

Taken the following setup:

First board connected to a PSU via PCI-E, second board connected to the first board via power stacking ("green screw terminal").

What would happen if I connected the second board to a second/different PSU (while the power stacking stays in place)? Would that  work or cause a short circuit or even damage the boards?

Got tracking info for order 5XX but something is messed up.
Here is the tracking info I see. Seems like the order is stuck in a loop.
Also I don't see my address as the destination.
Any one got  ideas how to fix this?
 
Koeln, Germany  10/23/2013  3:10 A.M.  Departure Scan  
Koeln, Germany  10/22/2013  11:45 P.M.  Export Scan  
 10/22/2013  11:43 P.M.  Export Scan  
Newark, NJ, United States  10/21/2013  11:26 P.M.  Registered with Clearing Agency. Shipment release pending Clearing Agency review. / Released by Clearing Agency. Now in-transit  
Koeln, Germany  10/22/2013  4:36 A.M.  The package was left in a UPS facility. / Delivery rescheduled.  
 10/22/2013  2:57 A.M.  Warehouse Scan  
 10/22/2013  1:59 A.M.  Export Scan  
 10/22/2013  1:58 A.M.  Export Scan  
 10/22/2013  1:33 A.M.  Arrival Scan  
Newark, NJ, United States  10/21/2013  3:51 P.M.  Registered with Clearing Agency. Shipment release pending Clearing Agency review. / Shipment submitted to Clearing Agency, awaiting final release.  
Hamburg, Germany  10/21/2013  9:10 P.M.  Departure Scan  
 10/21/2013  5:14 P.M.  Pickup Scan  
Germany  10/21/2013  10:01 A.M.  Order Processed: Ready for UPS  

EDIT:
I just called UPS and apparently I have been given the wrong tracking number.
This tracking number belongs to someone in New York and I am on the other side of the USA.

THX guys for help.

It was USB HUB.

Aster few hours:

Your USB-Port, you connect the miners with, is powered too low. Try another port or use an active USB-Hub.

- timeout is to low, for 420Mhz i should be 30
- try voltage 1334
- if still isnt working properly lower clock to 399, voltage 1280, timeout 32

I had a lot of problems at the beginning. Some bitburners stopped working. After reboot they worked for a few minutes, then other stopped. I tried different settings. But the the system did not work stable.
Then I used this:  http://www.amazon.de/gp/product/B000KY7VY4/ref=oh_details_o02_s00_i00?ie=UTF8&psc=1
.. and all the problems are gone..
Now the system with raspi and 48 bitburners is running for days without problems. ( using --avalon-auto)

after 20 minutes:
 [2013-10-22 19:42:46] usb_write error on avalon_write
 [2013-10-22 19:42:46] usb_write error on avalon_write
 [2013-10-22 19:42:46] usb_write error on avalon_write
 [2013-10-22 19:42:46] usb_write error on avalon_write
 [2013-10-22 19:42:46] usb_write error on avalon_write
after cgminer restart:
2013-10-22 19:44:29] avalon detect (1:23) failed to initialise (incorrect device?)

it could be broken usb hub.....
invastigating now

my line:
--bitburner-voltage 1300  --avalon-options 115200:12:10:28:420 --queue 3 -G --avalon-fan 80

Today my Bitburner arrived. Everything works perfect. Thanks burnin. Order number was 37X with Zefir chips batch 5.