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Author Topic: Swedish ASIC miner company kncminer.com  (Read 3031296 times)
helmax
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May 29, 2015, 12:24:33 AM
 #40521

people anyone have best settings for undersvolting? for neptune consume less watts

looking job
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bgibso01
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May 29, 2015, 02:14:46 AM
 #40522

people anyone have best settings for undersvolting? for neptune consume less watts

Really?  I've been wondering just what my neptune consumes.  Since it's on 240v, I don't have a kill-a-watt meter.  I know the gui shows 4TH @ 1650w (6 cubes) but who knows how much is lost from other stuff even if using plat psu.

My SP20s get just under .5w/gh when I use the plat psu and underclock to 1150-1200gh.
tilin
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May 29, 2015, 08:24:17 AM
 #40523

Hello, I have this problem with one of the cubes, and have touched the voltage if the module responds and nothing, still 000 ..... any ideas please or help.

http://s2.subirimagenes.com/otros/previo/thump_9379147neptune1.jpg
UsarNaem
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May 29, 2015, 01:44:15 PM
 #40524

I'm having a problem with my Titan that I can't resolve.

After a long period of successful hashing I unplugged the cords and moved my cubes.

After re-assembling everything no cubes are recognized. I can see the knc web interface but no cubes and a blank pi screen.

Yes the cords are seated properly on all pins. I'm running 2.0 but have tried several revisions on different sd cards.


Has anybody had this happen (No Cubes being found) and if so how did you solve it?
s1gs3gv
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May 29, 2015, 07:23:47 PM
 #40525

I'm having a problem with my Titan that I can't resolve.

After a long period of successful hashing I unplugged the cords and moved my cubes.

After re-assembling everything no cubes are recognized. I can see the knc web interface but no cubes and a blank pi screen.

Yes the cords are seated properly on all pins. I'm running 2.0 but have tried several revisions on different sd cards.


Has anybody had this happen (No Cubes being found) and if so how did you solve it?

Is bfgminer running ? I think their webapp makes rpc calls to bfgminer to get data on the cubes.
UsarNaem
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May 29, 2015, 09:20:33 PM
 #40526

Unfortunately bfgminer runs at 0 mh/s with none of the cubes recognized.
Sometimes it shows every slot as OFF othertimes the entire cube on/off interface doesn't show up.


It used to detect all of the cubes upon start up and then the pi screen would display info. Now I get one lone green light and nothing happens.


The only things I can imagine is the controller is damaged or the cords are damaged or it's a software issue.

I'd really enjoy a 'detect hardware' button on the KnCMiner interface.  

Does anybody have a configuration backup that is recognizing cubes? I don't know what that file stores exactly.
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May 29, 2015, 10:04:36 PM
 #40527

Unfortunately bfgminer runs at 0 mh/s with none of the cubes recognized.
Sometimes it shows every slot as OFF othertimes the entire cube on/off interface doesn't show up.

I'd recommend turning on debug logging on bfgminer but the last time I tried that on a Titan the whole machine crapped out …

You've checked bfgminer to make sure your pools aren't dead of course ?
UsarNaem
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May 29, 2015, 10:19:34 PM
 #40528

Unfortunately bfgminer runs at 0 mh/s with none of the cubes recognized.
Sometimes it shows every slot as OFF othertimes the entire cube on/off interface doesn't show up.

I'd recommend turning on debug logging on bfgminer but the last time I tried that on a Titan the whole machine crapped out …

You've checked bfgminer to make sure your pools aren't dead of course ?

Pools are live and I'm about out of ideas. That purple light doesn't seem to be coming back.

Has anybody noticed the flat ribbon cables have letters engraved on them? And they're different for me.

E E Q A F

I wonder what that means, it has to be something otherwise the manufacturer wouldn't take the time to etch it. Probably not important.


Anyways, has anybody had success getting Titans to run on anything other than the KNC issued controller?
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May 29, 2015, 11:05:32 PM
 #40529

Well this is a long shot but you might try plugging a monitor into the rpi hdmi port, reboot and watch for any odd error messages as the system comes up.

According to KNC plugging things into the USB ports can damage the controller but the hdmi port is functional.

UsarNaem
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May 29, 2015, 11:31:37 PM
 #40530

Well this is a long shot but you might try plugging a monitor into the rpi hdmi port, reboot and watch for any odd error messages as the system comes up.

According to KNC plugging things into the USB ports can damage the controller but the hdmi port is functional.



Good Call.

I tried that and everything booted for the most part until (paraphrasing)

[Warn] Kernel Lacks cgroups or memory controller not available, not starting cgroups (warning)

Error opening dev/input/event ......

and then more things succeeded in booting until finally I got one error which repeated in perpetuity:

asic 1-6 die 1-4 " "

Error: Could not open file dev/i2c-2 or dev/i2c/2 no such file or directory.

It continues saying that until it reboots.  Huh

Anybody know what that means?
s1gs3gv
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May 29, 2015, 11:50:06 PM
 #40531

I'm guessing that the i2c device is the kernel interface to the fpga on the controller board, via which commands are issued by the bfgminer titan driver to the hardware.

Without looking at the code I can't tell you more about this error. Does your uSD have a fresh install of 2.0 on it ?

If not, I'd recommend doing that then watch the console while it boots again.

Make sure you always ssh into your titan and do a

Code:
sudo /sbin/shutdown -h now

before power cycling it to avoid filesystem damage.
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May 30, 2015, 12:24:04 AM
 #40532

Yeah, I've flashed 2.0 on 3 different sd cards to no avail.

Older .img's didn't help.
s1gs3gv
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May 30, 2015, 02:34:06 AM
 #40533

Yeah, I've flashed 2.0 on 3 different sd cards to no avail.

Older .img's didn't help.

And do you get the same message on the console about /dev/i2c ?
UsarNaem
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May 30, 2015, 03:27:10 AM
 #40534

Yes I do unfortunately.

I don't know how to advance from here. If anyone has encountered the /dev/i2c error or thinks they know the issue pm me.

My only ideas are to try yet another sd card, change data cables, or ... contact KnC who will probably ask me to send a sealed envelope with $1000 inside. Tongue
Searing
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May 30, 2015, 08:27:59 AM
 #40535

Yeah, I've flashed 2.0 on 3 different sd cards to no avail.

Older .img's didn't help.

this probably won't help ..but anyway....if from the above the FIRMWARE did not take on the 2.00
I'd go back to 1.15 and try an adv page upgrade on a new SD card (sandisk 8gb class 10 i use)
using the original 1.15 firmware that is as the start point

if I'm off the mark on the above ..er nevermind....just tossing it out there as an alternative to flashing the SD to 2.00 with the img directions















 

 

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s1gs3gv
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May 30, 2015, 12:47:38 PM
 #40536

Yes I do unfortunately.

What exactly does the message say ?
UsarNaem
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May 30, 2015, 05:33:40 PM
 #40537


Quote
kernel lacks cgroups or memory controller not available not starting cgroups


error: nstatus !-1 when nCONFIG is HIGH

Configuring TPS65217
Waiting for PGOOD for too long
Wrong SEQ4 Value

/usr/bin/board-init.sh: cannot create /sys/class/gpio/gpio16/direction: directory nonexistent


Error: Could not open file '/dev/i2c-2' or '/dev/i2c/2': No such file or directory

something about dhcp directory being non existent

pi will now restart

In-between errors there are several successful processes. It's chronological but far from complete. I don't have a way to capture the video off the hdmi ready atm.

If it's a file-system error I can't see why fresh installations of .img files wouldn't t fix it.  Huh  Maybe it's the controller..
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May 30, 2015, 09:57:51 PM
 #40538

If it's a file-system error I can't see why fresh installations of .img files wouldn't t fix it.  Huh  Maybe it's the controller..

Exactly. The error message implies that the devices don't exist. Can you ssh into your machine and do a

Code:
ls -l /dev/i2c*

and confirm they are missing ?

I don't have any experience with the knc driver code in bfgminer but  looking briefly at driver-knc.c, it looks like the i2c devices talk to the DC/DC converters.

BTW, are you sure you transcribed that error message correctly and it didn't actually say: 'Failed to open /dev/i2c-2 … ' instead of 'Could not open file /dev/i2c-2 ….'  ?
freedomno1
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June 01, 2015, 10:26:59 PM
 #40539

Seeing as I haven't been keeping track of KNC for quite some time and since there seems to be a lawsuit in Sweden ongoing reading a few pages back in the thread, I think this block analysis might be interesting to some users.
https://bitcointalk.org/index.php?topic=1077623.msg11508977#msg11508977

Also Bitcointrackerone
http://www.reddit.com/r/Bitcoin/comments/38494i/bitcoin_tracker_one_owns_4300_btc/
http://www.nasdaqomxnordic.com/etp/etn/etninfo?Instrument=SSE109538

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Skatebird
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June 02, 2015, 01:36:28 AM
 #40540



Can someone help me please, ive just noticed that my hashrate dropped a little bit so i have take a look at my knc miner and realise that some part of some cube seem not working. On the picture, we can see that dc/dc 0 and 1 on asic 2 are only at 1 W and same thing for dc/dc 2 and 3 on asic 3. What sould i do and why its like that ? Thank you

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