Topic: [GUIDE] BitFury Miner Support/Tuning - page 10. (Read 147977 times)

try sudo reboot

sounds like the pool info is correct or recently changed. check its configured correctly and connected to internet, not just the home network

Please forgive my ignorance on this, but can I put bfgminer or cgminer on the pi and use that instead of chainminer? From the bfgminer page, there is no support for the V3 M-board and I have not been able to get cgminer running. I can compile it with bitfury enabled, but when I start it up I get nothing.

its not working. i really don't know whats wrong it was working fine. internet is working correctly. i have other miners that are still running.
its still looks like it is hashing from the blinking green light. but on the site (bitfury admin page) it shows 0 hash.

Hit save stratum info, wait for the confirmation.
hit stop miners, wait for the confirmation.
hit start miners, wait for the confirmation.

It should be hashing again in a minute or two, if not something else is wrong. (Internet connection working?)

hey guys i am running in to a problem with my rigs. i have two full rigs (v2 h-card & v3 m-board)
for some reason both of them just stop hashing. what could the problem? i'm still able to go in to the web browser.

I should probably be able to figure this out, but i'm no where near my rig. did you put the heat sink on the chip side of the card or the back side? Also, I'm just running my rig stock, no manual tuning or over clocking, with a couple of fans blowing on the boards. Would i see an increase in hash rate just by adding the extra cooling the heat sinks provide?

A small dab behind each chip, and superglue in between.

I have a link to the ebay supplier in my posting. each heatsink comes with 2cc thermal paste . You can try arctic silver or antec diamond if you need more. I used superglue as the adhesive between thermal paste

it does not help a lot with speed esp. if the card is running at 35GH/s+, but it will pull up a 30GH/s  card with a few overheated chips. Increases reliability and hopefully longevity.

Goxed -
What do you use for thermal paste and glue?  I would like to try this but I have never used either.
Recommend a supplier?  I am sure a bunch of places carry it, but curious.

Do you put an 'X' of thermal paste on the back of heatsink, with glue at the four corners? I'd like to do this, but I'm finding conflicting advice online on how much paste to use, and how to apply it.

how is that handling compared to the individual VGA heatsinks you were using? any increase in overclocking headroom, or is 38-40GH still the practical maximum?

Copper server-grade heatsink for Bitfury H-cards. (wish I had found these sooner, now that 55nm is on its way out)


H-board for scale


Affixed using thermal paste + glue




Buy it $4 e.a. shipped

http://www.ebay.com/itm/HP-HEATSINK-FOR-PROLIANT-BL460C-410304-001-/310843266756?pt=US_Server_Fans_Cooling_Systems&hash=item485fb3d6c4

The thermal vias are all attached to the ground plane (I'm guessing it's ground) on the back of the board.  Basically, they're all shorted together already.

That said, I don't know how you'd use paste to attach your heatsinks, unless they're large enough that you can use the mounting holes drilled into the board.  Thermal adhesive or tape should work OK.  It's what I'm using with mine...bought a bag of aluminum heatsinks with thermal tape already applied.

One other thing I noticed with my most recent purchase: looks like there was a slight redesign to get rid of a bunch of solder mask on the back side of the board.  Basically, there are two vertical rectangles with no solder mask, each covering 8 chips.  It might make my heatsinks work a little bit better, but what'd really be cool was if there was a heatsink available such that you could just buy one or two large ones and clip it into place instead of buying a bunch of little heatsinks (though you'd probably still need a little heatsink for the voltage regulator).

i am and maybe i can offer a helpful perspective below since i can "see" my local stratum pool connection.


i have the same problems.  the rigs ran fine for the first month or so.  then my local stratum server instance started showing spontaneous "resets" of all my rigs on a random basis about every 15 min or so.  it's been going on for the last month and i've been tearing my hair out trying to figure it out.  i say "reset" b/c i can see the connection to the stratum server behave just like it does when i start up a rig cold from a poweroff.  i initially see a rapid scrolling upwards of hashing lines as the rig connects with the stratum server.  stratum automatically slows the rapid scrolling down to a once every 30 sec interval via the vardiff.  but then each chip only hashes around 10. it takes a miner restart manually to kick hashing up over 30.  this is hopefully where it should stabilize.  but then a spontaneous "reset" hits again.  it "seems" to be correlated with heat although i'm not sure of this.  this happens over and over.

my belief is that Chainminer needs continuous updating via Jared to gain stability and stop these resets.  i say this b/c w/o ckolivas constantly fine tuning my Avalon instance of cgminer over a dozen times, we never would have been able to mine on a stable basis.  i don't think i'll ever buy another miner unless i know ckolivas is actively supporting a cgminer instance.

edit:  i may be wrong about it being chainminer.

Affixing Heatsinks with Thermal Paste/Adhesive?

The copper heatsinks I have did not come with thermal adhesive/tape on them. I have Artic Silver thermal paste and thermal adhesive, so I was wondering if I could affix the heatsinks to the back of the H-board using that.

My concern is that when I look at the back of the H-board, I can see the tiny soldering connections on the back of the chip. Since the paste is minimally conductive, does that mean if I affix the heatsinks using it, I'll short the connections?

Sorry if this is a stupid question, but I'm very new to electrical engineering. Thanks very much.

Check the console output of the proxies and chainminer. Connect with ssh, and run 'sudo screen -r' to get the list of running background screens, then 'sudo screen -r xxx' for each one listed. You should have three instances of the stratum proxy and one of chainminer. Look for any errors or suspicious lines, and paste here.

PROBLEM : NOT HASHING

I disconnected briefly from the modem and on reconnecting all my bitmain systems returned to hashing normally but the bitfury does not.

I can access 192.168.1.249 and click 'start miner' but nothing happens. '0 GH' refreshes time to time
I can SSH in and see that no chips are running at all.
Pool settings were not altered whatsoever - nonetheless i re-saved them and still nothing

whats going on? Usually the system bounces right back from any brief internet outtages/disconnections

We fixed it, there was a router conflict as he had something with .248 as well as his existing .249 rig.