Swedish ASIC miner company kncminer.com

[Tigggger]

The point is that with lower temperatures, you get a much higher hashrate and less errors, i think. I think the temperature thing is the main thing that affects the hashrate.

My machine is just getting slower as each day passes, hw errors are getting worse, started off around 10% now up to 14%.  It's not a temperature issue



It's not a firmware issue in so much as flashing to previous versions where i'd got higher hashrates/lower hw errors aren't helping.

My best guess is that more cores are failing as time goes on.

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[realtime]

Hi all,

just a quick quest to every one who already have a miner at hand.

I've noticed quite high system load (see uptime(1) output):

Code:

root@XXXXXXX:~# uptime
 07:35:10 up 16:06,  load average: 1.92, 1.93, 1.94

looking at top(1) output is clear that the load is not due to some
cpu hogs hidden somewhere. the process that use more cpu is cgminer
with rate varying from 4% to 12%

Then I think that the hi-load is due to processes spending time waiting for some kind of
I/O. After a bit of searching I think I found the culprit:

Code:

PID USER       VSZ STAT COMMAND
  58 root         0 DW   [spi1]

this process spent a lot of his time in D/DW states. from ps(1) man pages:

D    uninterruptible sleep (usually IO)
W    paging (not valid since the 2.6.xx kernel)

Does this description apply to your miners too ?

Checked my 3 Jupiters PID 58 (spi1) sits pretty constant at 1%, cgminer sits solid on 15%

uptime ?
ps | grep  spi ?


edit: I'm asking for the above output command because having a such high system load (~1.9) on a box with only one cpu means that your system is overloaded almost by a factor of 2.
        uptime show sys avg load  average for the past 1, 5, and 15 minute in regard to both the CPU and IO.

Code:

root@Jupiter-5A6:~# uptime
 08:49:44 up 21:08,  load average: 1.94, 1.91, 1.90

Code:

root@Jupiter-5A6:~# ps | grep spi
   58 root         0 DW   [spi1]
   61 root         0 SW   [spi2]

[ur0pl]

The point is that with lower temperatures, you get a much higher hashrate and less errors, i think. I think the temperature thing is the main thing that affects the hashrate.

My machine is just getting slower as each day passes, hw errors are getting worse, started off around 10% now up to 14%.  It's not a temperature issue

http://s15.postimg.org/uw7pcdp97/knc.jpg

It's not a firmware issue in so much as flashing to previous versions where i'd got higher hashrates/lower hw errors aren't helping.

My best guess is that more cores are failing as time goes on.

Please don't give up like that. You lose hope, then we all lose hope. What happens when you do a hard reset, and what hash rates did you get before and are getting now? Maybe there is high temperature on other components or something that ram heatsinks can fix. Maybe you should open your case. maybe you should disconnect the cables then reconnect them, while the machine is off and no metal is on your fingers.

[sickpig]

uptime ?
ps | grep  spi ?

Saturn @ 0.93

root@Saturn-C78:~# uptime
 08:47:04 up 2 days, 20:58,  load average: 1.87, 1.89, 1.92
root@Saturn-C78:~# ps | grep spi | grep -v grep
   58 root         0 DW   [spi1]
   61 root         0 SW   [spi2]

(removed top output)

so it seems it is a common scenario, and maybe it's normal and nothing is wrong.
but I can't be helped cause every time I see high load my gut feeling is that thre's something wrong going on.

it's a real pity there's no source code somewhere, just for audit purpose.

anyhow my theory (pure speculation) based on the high IO time (spi procces state = uninterruptible sleep) is that
communication with the ASIC core is not optimal. time will tell.

[sickpig]

Code:

root@Jupiter-5A6:~# uptime
 08:49:44 up 21:08,  load average: 1.94, 1.91, 1.90

Code:

root@Jupiter-5A6:~# ps | grep spi
   58 root         0 DW   [spi1]
   61 root         0 SW   [spi2]

thanks!

[murraypaul]

in fact we had 4 fires/burnt caps so far

2 x 0.92
1 x 0.93
1 x 0.94 (this one today at the datacenter of anotherhosting.se)

Sounds like I'm installing 0.91

If it has happened on 3 different firmware versions, the most likely conclusion is that it has nothing to do with the firmware, and is simply a hardware issue, either bad design or bad build.

[Madazam]

Ok so finally my order is shipped 8xx day 2 payment, and it will take only 11 days to arrive ..i am so royally, majorly and monumentally screwed .....

[Searing]

in fact we had 4 fires/burnt caps so far

2 x 0.92
1 x 0.93
1 x 0.94 (this one today at the datacenter of anotherhosting.se)

Sounds like I'm installing 0.91

If it has happened on 3 different firmware versions, the most likely conclusion is that it has nothing to do with the firmware, and is simply a hardware issue, either bad design or bad build.

again is there a more extreme cooling options ie off the slelf better then the arctic i30 cooler KNC provides.....just saying if I had a really weak unit out of say 3 boards..might be worth doing (rather then send it back rma) but then again maybe nothing much exists off the shelf for this?

(me my plan is my Minnesota basement this winter..heh)

Searing

[Tigggger]

Please don't give up like that. You lose hope, then we all lose hope. What happens when you do a hard reset, and what hash rates did you get before and are getting now?

I'm not giving up and I'm still happy. It was delivered on time and is still quicker than what I paid for, just to trying to figure out what's happening.

Don't have the exact numbers

0.90 @ 500GH
didn't notice hardware errors on this one, wasn't running long before 0.91 came out

0.91 - 0.93 were all similar, I noticed an increase in hashrate to around 530, hw errors were around 10%

0.94 saw a dramatic drop in hashrate to 500, after 12+ hours it had settled back to 525 but the errors went up to 14% and reported speeds at the pool were significantly lower.

I've then tried going back to 0.91 and 0.93 but the error rate remains high.

[Searing]

Ok so finally my order is shipped 8xx day 2 payment, and it will take only 11 days to arrive ..i am so royally, majorly and monumentally screwed .....

yeah you and me both I'm a 304x and 520x orders....so I guess it is time to put on my "denial" tin foil hat ..and convince myself it is a "hobby" (hey sports cars are hobbies right....cooler hobbies but the equip sits outside and rusts...with this asic stuff I can look at it everyday as doorstops ..at least the BFL stuff....actually re-read that better to hide in the attic.


so find the next "hot" sha256 coin and point your stuff at it now and hope for "pump and dump" when everyone else does the same rather then turn their asic miners off...(I assume they at that point will also play the "denial" game with tin foil hat accessory)

heck there is no way I'm gonna get my 65gh from BFL according to their timeline till at least the first week of novemeber .....ALT SHA256 coins here I come...or alternate is door stops..

(man I really really hate these "LIFE" lessons....should just plan on having a "hut" 'food' and do recreation 'tanning' for hobbies...much more tranquil ...)

I STILL plan on sending one of my BFL units to the bronze baby shoe place and put it on my mantle...much like bombing of pearl harbor..."never again".

(it is hard finding out at my late age i'm a gasp "optimist" or why else would I have jumped on this bandwagon?)

Searing

[Searing]

Just wondering why your tagline has 400gh monarch? the www page at bfl still shows 600gh am I missing something

(Yeah ...I jumped at the upgrade....had to or i'd have more doorstops at this time .....and that 60gh still an't moving much I upgraded)

no fool like an old fool

Searing


er this was for trigger...see his tagline above

[Madazam]

Ok so finally my order is shipped 8xx day 2 payment, and it will take only 11 days to arrive ..i am so royally, majorly and monumentally screwed .....

yeah you and me both I'm a 304x and 520x orders....so I guess it is time to put on my "denial" tin foil hat ..and convince myself it is a "hobby" (hey sports cars are hobbies right....cooler hobbies but the equip sits outside and rusts...with this asic stuff I can look at it everyday as doorstops ..at least the BFL stuff....actually re-read that better to hide in the attic.


so find the next "hot" sha256 coin and point your stuff at it now and hope for "pump and dump" when everyone else does the same rather then turn their asic miners off...(I assume they at that point will also play the "denial" game with tin foil hat accessory)

heck there is no way I'm gonna get my 65gh from BFL according to their timeline till at least the first week of novemeber .....ALT SHA256 coins here I come...or alternate is door stops..

(man I really really hate these "LIFE" lessons....should just plan on having a "hut" 'food' and do recreation 'tanning' for hobbies...much more tranquil ...)

I STILL plan on sending one of my BFL units to the bronze baby shoe place and put it on my mantle...much like bombing of pearl harbor..."never again".

(it is hard finding out at my late age i'm a gasp "optimist" or why else would I have jumped on this bandwagon?)

Searing

You more or less took the words out of my mouth old chap.....i would be amazed even if i get my investment back ..let alone profit....that will be my hard earned money spend/blood shed for the BTC community ....15 years from now i can say to people "you know i was one of the first to buy KNC miners" ...lol

on a secondary note i doubt we will be able mine alts on our kkncs...with all the bbqing going on i would be happy if i can just mine BTC.....

Madz

[Searing]

Ok so finally my order is shipped 8xx day 2 payment, and it will take only 11 days to arrive ..i am so royally, majorly and monumentally screwed .....

yeah you and me both I'm a 304x and 520x orders....so I guess it is time to put on my "denial" tin foil hat ..and convince myself it is a "hobby" (hey sports cars are hobbies right....cooler hobbies but the equip sits outside and rusts...with this asic stuff I can look at it everyday as doorstops ..at least the BFL stuff....actually re-read that better to hide in the attic.


so find the next "hot" sha256 coin and point your stuff at it now and hope for "pump and dump" when everyone else does the same rather then turn their asic miners off...(I assume they at that point will also play the "denial" game with tin foil hat accessory)

heck there is no way I'm gonna get my 65gh from BFL according to their timeline till at least the first week of novemeber .....ALT SHA256 coins here I come...or alternate is door stops..

(man I really really hate these "LIFE" lessons....should just plan on having a "hut" 'food' and do recreation 'tanning' for hobbies...much more tranquil ...)

I STILL plan on sending one of my BFL units to the bronze baby shoe place and put it on my mantle...much like bombing of pearl harbor..."never again".

(it is hard finding out at my late age i'm a gasp "optimist" or why else would I have jumped on this bandwagon?)

Searing

You more or less took the words out of my mouth old chap.....i would be amazed even if i get my investment back ..let alone profit....that will be my hard earned money spend/blood shed for the BTC community ....15 years from now i can say to people "you know i was one of the first to buy KNC miners" ...lol

on a secondary note i doubt we will be able mine alts on our kkncs...with all the bbqing going on i would be happy if i can just mine BTC.....

Madz

I thought you could mine sha256 coins the same "base' as bitcoin also sha256 ...others on here with more knowledge then myself what do you think?

[Madazam]

I thought you could mine sha256 coins the same "base' as bitcoin also sha256 ...others on here with more knowledge then myself what do you think?


[/quote]

Yes you can i am just saying i might not tweak and poke my unit due to all the bbqing and breaking down i am seeing on the forum .....

[Searing]

Ok so finally my order is shipped 8xx day 2 payment, and it will take only 11 days to arrive ..i am so royally, majorly and monumentally screwed .....

yeah you and me both I'm a 304x and 520x orders....so I guess it is time to put on my "denial" tin foil hat ..and convince myself it is a "hobby" (hey sports cars are hobbies right....cooler hobbies but the equip sits outside and rusts...with this asic stuff I can look at it everyday as doorstops ..at least the BFL stuff....actually re-read that better to hide in the attic.


so find the next "hot" sha256 coin and point your stuff at it now and hope for "pump and dump" when everyone else does the same rather then turn their asic miners off...(I assume they at that point will also play the "denial" game with tin foil hat accessory)

heck there is no way I'm gonna get my 65gh from BFL according to their timeline till at least the first week of novemeber .....ALT SHA256 coins here I come...or alternate is door stops..

(man I really really hate these "LIFE" lessons....should just plan on having a "hut" 'food' and do recreation 'tanning' for hobbies...much more tranquil ...)

I STILL plan on sending one of my BFL units to the bronze baby shoe place and put it on my mantle...much like bombing of pearl harbor..."never again".

(it is hard finding out at my late age i'm a gasp "optimist" or why else would I have jumped on this bandwagon?)

Searing

You more or less took the words out of my mouth old chap.....i would be amazed even if i get my investment back ..let alone profit....that will be my hard earned money spend/blood shed for the BTC community ....15 years from now i can say to people "you know i was one of the first to buy KNC miners" ...lol

on a secondary note i doubt we will be able mine alts on our kkncs...with all the bbqing going on i would be happy if i can just mine BTC.....

Madz

OK found this link on forums looks possible to do...so I assume someone will try it...i'm almost certain sha256 coins can work with my BFL stuff should I ever get such

http://forum.kncminer.com/forum/main-category/hardware/5556-alternative-coins-mining-on-kncminer-devices

not sure if you have to make an account first or not on knc forums to hit this link but that is what i'm gonna follow on this (if for no other reason I assume other bfl refugees that have gone to knc will lurk in that area as well for use of their doorstops)

Searing

[Searing]

I thought you could mine sha256 coins the same "base' as bitcoin also sha256 ...others on here with more knowledge then myself what do you think?

Yes you can i am just saying i might not tweak and poke my unit due to all the bbqing and breaking down i am seeing on the forum .....
[/quote]

yeah this will be when the knc unit reaches its bfl self life death may look at this for fun

Searing

[Tigggger]

Just wondering why your tagline has 400gh monarch? the www page at bfl still shows 600gh am I missing something

(Yeah ...I jumped at the upgrade....had to or i'd have more doorstops at this time .....and that 60gh still an't moving much I upgraded)

no fool like an old fool

Searing


er this was for trigger...see his tagline above

A BFL shill has/had a tagline that says
The Monarch 600 GH/s - 350W - Pre-Order Yours Today!
`````` Only $4,680 - Guaranteed delivery by December 2013

I simply altered it to show what's it's likely to be given BFL's past performance.  Note the power and delivery dates have slipped so it's on course to be accurate.

[Madazam]

I thought you could mine sha256 coins the same "base' as bitcoin also sha256 ...others on here with more knowledge then myself what do you think?

Yes you can i am just saying i might not tweak and poke my unit due to all the bbqing and breaking down i am seeing on the forum .....

yeah this will be when the knc unit reaches its bfl self life death may look at this for fun

Searing
[/quote]

Great , will try iy till i break even, lot of alt sha 52 cons that we can try and than trade back ....

[Searing]

Just wondering why your tagline has 400gh monarch? the www page at bfl still shows 600gh am I missing something

(Yeah ...I jumped at the upgrade....had to or i'd have more doorstops at this time .....and that 60gh still an't moving much I upgraded)

no fool like an old fool

Searing


er this was for trigger...see his tagline above

A BFL shill has/had a tagline that says
The Monarch 600 GH/s - 350W - Pre-Order Yours Today!
`````` Only $4,680 - Guaranteed delivery by December 2013

I simply altered it to show what's it's likely to be given BFL's past performance.  Note the power and delivery dates have slipped so it's on course to be accurate.

yeah I figured the same....when I saw your tagline just figured it happened already

by the by you get stuck with one of these via "force upgrade" ie no real choice

I run the numbers on upgrading my last 65gh to a monarch or just keeping them according to most diff calculators even the more 'modest' diff % increase ones...I'm looking at an 70% at least loss no matter which way I jump..so again they will be nice little life lessons for me as doorstops....and/or the alt sha256 coins to play with for fun and to continue my 'denial' just hope this is not gonna be an issue on my 304x Jupiter  knc miner and 520x Saturn (that will teach me...for being an 'optimist" ...shudder......

[Searing]

I thought you could mine sha256 coins the same "base' as bitcoin also sha256 ...others on here with more knowledge then myself what do you think?

Yes you can i am just saying i might not tweak and poke my unit due to all the bbqing and breaking down i am seeing on the forum .....

yeah this will be when the knc unit reaches its bfl self life death may look at this for fun

Searing

Great , will try iy till i break even, lot of alt sha 52 cons that we can try and than trade back ....
[/quote]

with all the "outdated' and soon to be asic miners....I can't see them going in a closet ...I can see other foo...er I mean enlightened types like myself just using them with alt256 coins .at least until "reality" sets in.....gonna be a lot of us in 9 months with nothing worth mining in bitcoin realm..perhaps we should invent a new coin call it "Titanic Coin" ....yeah it looks pretty and is ahead of its time but it too will sink.

Searing