Topic: Swedish ASIC miner company kncminer.com - page 982. (Read 3050071 times)

nothing new if in some weeks means March

Ok the Noob , (thats me) got it working....

So i upgraded the modules and my saturn is hashing at a jupiter speed ...only one prob ...the front fans on casing have stopped working ...any idea why and solution ?

write error could mean the beaglebone storage is full or corrupted.

in putty:
df -h will show the disk space
fdisk -l will show the partition info

I'm not able to find the string 'Write Error' (without caps as well) in cgminer source code.
Is it the exact error msg you get ?

If so I guess your issue is located somewhere in the OS.
Anything useful in the log file ?

*Note: journalctl is the replacement for a "less /var/log/syslog"
http://www.freedesktop.org/software/systemd/man/journalctl.html

Trouble shooting wise.

Make sure all the power cables are correctly attached.
Do a hard reset on the device:


Also:
From the KNC support page: https://www.kncminer.com/pages/troubleshooting


Lastly, If you can isolate the bad board, then you can just return that bad board for an RMA and the miner can continue mining, you don't have to lose the entire miner and 480Gh/s just for one bad board.

from #kncminer channel


for who doesn't know hno, he's an OrSoC engineer. This going to be big, potentially  

I am not sure this is the right place for this but this seems to be a catch all thread so here goes.

I have 2 late October Jupiters.  One I was able to get to 550 with all cores running under 98.1 beta.  The other has 2 cores on one board that will not work until 73C or 74C and as soon as they start the whole board shuts down (I assume thermal shutdown) so it only works at around 480.

I was living with that (not economically feasible to give up 480 hashes for 2 weeks to rma the thing just to maybe get another 60 or so).

Now the problem.  I shut the full speed unit down for a few minutes to change locations and when I restarted it cgminer fails to start.  The bone boots and I can tty into it.  I can try to manually start cgminer and I get a "cgminer failed to start: Write Error".

I tried changing firmware.  Cgminer will run on 98 but not on anything after and on 98 I have all die 0s dead.

Anyone have any clues?

TaggedYa

ck, can you elaborate a little on the difference in behaviour & reporting between the 3.8.2 tuned and non-tuned on a KnC miner?

I haven't run the latest tuned version but in earlier ones it would turn the cores on and off according to number of hw errors (off) and time (on)

To see the status I'd run Update Asic Status on Bertmod and see what cores were turned on or off, these numbers would change over time obviously.

With the non-tuning version of cgminer, the cores don't get turned on and off.

With both versions of the software they report HW errors numerically and as a percentage.

Is there any correlation between the HW numbers and the different methods that the tuning/non-tuning versions of cgminer use to handle cores?

Or are HW errors irrelevant due to the way the KnC hardware reports them?

Cheers!

thanks ckolivas

Looks good, but every hardware is different with respect to dud cores. Some is golden and some is scat.

Mining Status
CGMiner Status   Running (pid=1774)
Last Checked   Mon Nov 25 09:31:45 UTC 2013
Avg. Hash Rate   563 Gh/s
Difficulty Accepted   9,110,016
Difficulty Rejected   5,120 (0.1 %)
Hardware Errors   84,158 (0.9 %)
WU   7,852
Difficulty Stale   0
Network Blocks   146
Pool Rejected   0.1 %
Pool Stale   0
Best Share   2,235,713
Found Blocks   0


these is beta 0.98.1
is ok?

felix is it 15 bad cores or 5?

You know that with the tuning cgminer it turns cores on and off to try and find a stable medium.

What are your HW error %'s?

I've given up on the firmwares that pump the voltage up (>0.97) and tune the cores, I'm sticking with 0.96 and the non tuning 3.8.2 cgminer and my HW errors are down from 4.5% to 1.3% and dropping.

Regarding your temps, what temps are you getting? I noticed my rig was starting to drop performance no matter what firmware I used, even going back to my faithful 0.96 firmware didn't seem to make much difference. (circa 530Gh/s av)

However I had noticed that the ambient was getting pretty bloody cold here, so I moved it to a warmer location and performance jumped around 10Gh/s, then I reloaded 0.96 (always seems better for this rig, lower voltage, more stable) but wanted more realistic output from cgminer so loaded up ckolivas' latest 3.8.2 without tuning. And low and behold, the higher temps, the best firmware and more accurate cgminer and I'm back up to 550Gh/s avg over 24 hours, with spikes up to 600+Gh/s

Thing is edgar, these machines aren't perfect, they are enthusiast level, makes sense really for the market they are in. And as such they need a bit of TLC to get the most out of them. Yes some will be broken and need RMA'ing as a last resort, but there is no hard and fast rule that works for each one, and I think that finally KnC have realised this too, the tuning suite sounds more like you will be able to tune each ASIC separately for voltage, hopefully speed and maybe some other things.

This isn't going to mean that someone will give the "magic settings" that will work for everyone, if anything it means more work to find the best "tune" for your particular rig. Its a bit like overlcocking CPU's or GPU's no-one elses settings are quite right for your particular hardware.

I mean, I guess, they could have set a generic right-for-everyone 400Gh/s firmware but I think they knew that their hardware had more potential, probably a bad move on their part shouting about the upper limit of the October batches, but it sold alot of miners I bet!

I've been pretty happy with 530Gh/s but with difficulty increasing I'm looking to squeeze as much out of this puppy as I can, so today its remove the blue power cables and plug the Pcie's straight into the boards

This is an enthusiasts forum, and people are allowed to get enthusiastic, believe it or not Phoenix and the others in here have help loads of people get their machines working nicely. I for one think they are doing a great job and should continue. I salute their successes and apply what tweaks work for my rig, sometimes I even pass on things that have worked for me.

Thats the nature of forums like this, no offence, but it doesn't seem like it suits your nature. I just wonder what you actually want from this forum? Can you spell it out? Maybe bullet point it or something so that you have a record of the things you want addressed. Can't promise anything mind but it might help us understand why you seem so angry. 

There was talk on the kncminer.com forums of a permanent replacement, with the binary included in a bin patch, but I don't know where that went or if it ever got off the ground. You'd have to rebuild the image with each firmware and cgminer update.. so probably not worth it.

It doesn't take more than a few seconds, so you're better off just doing:

Another one duped by CYPHER.... good one....lol...
Seriously, not real.
btw.. just solved that last block on eligius with the Saturn+1 that I was just fiddling with..... lol!

It used to say shipping starting 15th November (not mid November)

Yeah, high time to hit the ignore button on Edgar.
You are irrational... and I'm done talking to you or about you, because you are literally a waste of my time. So.... feel free to ramble on..... "Truce".....

another victim whos support for KNC seems to be left to 'helpers' to deal with.

in answer to your question i honestly dont know.

i too am afraid to keep messing with it as the GH/s rate continues to diminish no matter what hacky type fixes are offered by CUSTOMERS or fw 'up'grades offered few & far between by the engineering team.

my advice which im following myself is to wait wait wait & wait until the so called tuning suite arrives.

until we have exhausted all options i wouldnt want to sacrifice 100Gh for a week or so for the sake of maybe getting the rest - it seems stupid to have to.

but then im one of those assclowns that doesnt bathe in the bullshit of 'heroes' or suckle at the teet of assumed greatness.

so you may do well to wait for the sellotape guy or the bulldog clip guy or the heatsink guy or the weawwy siwwy weboot guy.

they know what time it is

i may well be, but id rather be called an 'assclown' than be the kind of person that repeats stupid words/insults they read elsewhere in expectation of imaginary congratulations.

is this more 'help'? i notice you ignored my question like a true genius would... HOW IS OLD POINTLESS 'NEWS' A HEADS UP??

at least phoenix will like you more now.

maybe you can back each other up wrt not really knowing what you're talking about but expecting ppl to just accept it as 'help'

im good either way, shame the same cant be said for my 'dead' vrm/stunted GH

Or is it a ghost? or a bug? or something else that engineers just cant quite put their finger on yet.

tuning suite - 'we' cant fix it with 10 fw upgrades so you can do it yourselves!!

Clowns Ass!!

"Give it a rattle/twist/kick - it worked for me!"

Sorry this is a little late but how many bad cores do you need before KNC will allow an RMA?

Was your ASIC completely dead before KNC would give you an RMA?

I have one ASIC with probably 15 bad cores which slows my hashrate...   

Or just live with it?

>>>As soon as the first report good numbers I'll go for it.
>>>Currently running stable on 3.8.2 with my 5/192 bad cores board, so I don't want to mess with it now.