Swedish ASIC miner company kncminer.com

[aspeer]

It's amusing to see how many people in eligius have gotten jupiters( or other near 500GH/s) and struggled getting them to run well.... more funny is they seem to eventually get it leveled off through their own accord.

http://eligius.st/~wizkid057/newstats/topcontributors.php

[soy]

Or if one adds 12vdc fans to the exhaust of the box, powering with 12v out of the 4 pin molex, even unplugging everything then reassembling, plugging in the external 12vdc fans FIRST would kill any high voltage on that 12 volt rail.  This might not be much help if the power supply has multiple 12 volt rails in which case you'd have to make sure each rail had a fan on before getting attached to the miner.

[aspeer]

Or if one adds 12vdc fans to the exhaust of the box, powering with 12v out of the 4 pin molex, even unplugging everything then reassembling, plugging in the external 12vdc fans FIRST would kill any high voltage on that 12 volt rail.  This might not be much help if the power supply has multiple 12 volt rails in which case you'd have to make sure each rail had a fan on before getting attached to the miner.

or just pick up a $3 PSU tester with a screen instead of jumping the pins and let it drain the rails

[warhawk187]

Does anyone know why my Saturn stops hashing after 15 minutes???! This is ridiculous, it will hash @275-280 and then cgminer will start throwing FPGA errors and then either die completely or turn off a core and run @170ish Gh/s, but its never consistent. I've used 3 different PSU's and used all of the available firmware versions (mine came with 0.91).

What the F??! Anyone have any insight, or at least know how I can script cgminer via Putty to restart every 10 minutes? The case is off and when it hashes it hashes fine, but then, it just....dies. What gives?!?!

[aspeer]

Does anyone know why my Saturn stops hashing after 15 minutes???! This is ridiculous, it will hash @275-280 and then cgminer will start throwing FPGA errors and then either die completely or turn off a core and run @170ish Gh/s, but its never consistent. I've used 3 different PSU's and used all of the available firmware versions (mine came with 0.91).

What the F??! Anyone have any insight, or at least know how I can script cgminer via Putty to restart every 10 minutes? The case is off and when it hashes it hashes fine, but then, it just....dies. What gives?!?!

try putting .93 on it with the reboot fix

[DPoS]

Simple question: KNC are you speed testing each chip/board before placing it in a box?

that might be what the '2's and '1's stickers are on the boards.  No one figured that out yet


I will say again, that the boards should of kept the 8 VRMs.   Just because they weren't outputting current, somehow those extra chips were lowering the amps, heat and overall wattage of the miners

Only one board in my two jupiters have 8 VRMs

[soy]

Or if one adds 12vdc fans to the exhaust of the box, powering with 12v out of the 4 pin molex, even unplugging everything then reassembling, plugging in the external 12vdc fans FIRST would kill any high voltage on that 12 volt rail.  This might not be much help if the power supply has multiple 12 volt rails in which case you'd have to make sure each rail had a fan on before getting attached to the miner.

or just pick up a $3 PSU tester with a screen instead of jumping the pins and let it drain the rails

Yes, but lets get this exploding capacitor problem ended so they can start shipping again.  Does the board have MOVs on the 12v rail?  Not sure how effective at protecting tantalum given the tantalum sensitivity to high voltage and there's the power loss in the MOVs given that you'd want them conducting before the tantalum(s) fry and the closer the MOVs knee to the rail voltage the higher the leakage.  Would that be significant overall?  Probably not.  They'd need add the MOV to the board.  If it's multi-layver they can't just drill a pair of  holes willy-nilly but careful placement of holes drilled, copper surface of rails exposed with scraping, MOV soldered to 12v and ground is a lot of work.  Perhaps a connector, internal, with the MOV installed; unplug power ribbon, insert connector, plug power ribbon(s) into added connector might satisfy insurance people and protect the board.  An exploded capacitor isn't a fire tho it may give off gas that smells like smoke.  

[sickpig]

I'm not sure why people are freaking out, I get responses within 24 hours every time when I make a reasonable, non answered in the FAQ and fully formed request of them. See below:

Hi,
 
We are aware of some performance and stability issues with some of the Jupiter’s and we are working on a fix for these issues. As soon as the fix is released on our website please update your miner and leave it to run for a few hours to check the average hashing speed.
 
If after applying the updated firmware you still have a lower performance we can then arrange an RMA for your miner or board.
 
If you have any further questions please do not hesitate in contacting us.
 
Best regards  | Med vänlig hälsning  
Keith Gurnett  
Kncminer
www.kncminer.com
Office: +46 8559 253 20

EDIT:
Just got a second reply:
Hi,
 
We are in the final stages of testing the latest firmware update and it will be released on our website soon.
 
Please could you try a hard reset of your miner by following the instructions which can be found in our manual available for download here: https://www.kncminer.com/pages/support
 
Apologies for the inconvenience caused, if you have any further questions please do not hesitate in contacting us.
 
Best regards  | Med vänlig hälsning  
Keith Gurnett  
Kncminer
www.kncminer.com
Office: +46 8559 253 20

still waiting.

I hope they'll release 0.9.5 later today or tomorrow morning (CET)

[Searing]

Does anyone know why my Saturn stops hashing after 15 minutes???! This is ridiculous, it will hash @275-280 and then cgminer will start throwing FPGA errors and then either die completely or turn off a core and run @170ish Gh/s, but its never consistent. I've used 3 different PSU's and used all of the available firmware versions (mine came with 0.91).

What the F??! Anyone have any insight, or at least know how I can script cgminer via Putty to restart every 10 minutes? The case is off and when it hashes it hashes fine, but then, it just....dies. What gives?!?!

they say firmware problems being worked on ..also on the kncminer forum a guy made an app for free (see threads here)

I think it is on this page scroll down

https://bitcointalk.org/index.php?topic=170332.14900

also up you diff on your miner/;pool or whatever also somewhere around the above thread I think


and 3rd the last few pages here have shown people putting walmart fans and blowing the heck  out of the boards to keep them cool for some they help


hopefully if knc is right and this is a firmware issue it will address all this

anyone else with better info jump in this is just stuff I've gleaned unsure if correct or not in that it is from prev posts in the last day

searing

[trepex]

I did play around a little bit with BertMod and additional fans.



It looks ugly, but I managed to get the temperature of the left (hotter) ASIC down from 49C to 46C-45.5C:
6 dead (sometimes even more) -> 2 dead cores, sometimes 1/0 dead cores.  

The right one did cool down from 43.5C to 41.5C.
But that one had never dead cores.

I did not manage to find out why the left ASIC is warmer than the right one.

Putting the case on (and not using the additional fans) drives up the temperature again.

[greek_hephaestus]

After building experience of many mining GPU rigs in my opinion the correct placement of asic boards should be llike that:




Also for best results must replace the case fans with powerfull one's at least 120 CFM each.
KnCMiner Fans are 70 CFM
Another two or one large fan in the front would also help.

[Gyrsur]

My "Order #XXX Paid (Payed)" changed to "Order #XXX In progress (Payed)"?

Is this the sign to get included in the production line?

[-Redacted-]

Order #763 received.
Order #765 received.
Order #36x received.
Order #35x status changed to IN PROGRESS  (first)
Order #35x status changed to IN PROGRESS (second)

[-Redacted-]

My "Order #XXX Paid (Payed)" changed to "Order #XXX In progress (Payed)"?

Is this the sign to get included in the production line?

Yes.   

[Gyrsur]

My "Order #XXX Paid (Payed)" changed to "Order #XXX In progress (Payed)"?

Is this the sign to get included in the production line?

Yes.

Thank you! :-)

[naRky]

My "Order #XXX Paid (Payed)" changed to "Order #XXX In progress (Payed)"?

Is this the sign to get included in the production line?

yes, and now wait one week or more for shipping number

[dhenson]

I think we all need to step back for a second and chill out on the KNC folks.  

We have to remember that this is a collaboration between Orsoc and KNC, and both companies have reputations on the line.  If I were to speculate (and that's all we can do without any information coming from KNC) then as soon as units started having problems, the Orsoc guys put the breaks on the project.  To be honest, I can't even blame them.  You can't be a long term success in this industry if your products burn houses down.

I'm guessing that:
  1) KNC and Orsoc are madly working on the issues and will have them fixed as soon as humanly possible.
  1) KNC isn't allowed to say anything about the problems due to the agreement between them and Orsoc.


Nobody wants a unit shipped to their home that is going to achieve 1/10 to 1/4th of the expected hash rate. Nor would I imagine they want one that catches on fire.  I'm not involved and have not special information, but I know KNC will make this right.

[Searing]

Not sure but FractionalReserve posted this on KNC Forums www.kncminer.com

hopefully this fix is the real deal



Asic Bords with 4 VRMs - bug - cool properly until FW fix arrives!

Today, 04:07 PM


The new asic bords with only 4 VRMs are using to much power.

 KNC will release a bug fix for this in next (0.95?) Firmware hopefully arriving in short (Today?)

 A Jupiter in this Config will use app. 890W. So it can be difficult to start with a 850W ATX. (You can still run them with only 3 boards conected)

 The VRMs are also running over spec with app. 50+ A current each! They probably won't burn, but if you can cool them extra until the new firmware is realeased, do it!!
 The Asics are tunning to hot (+70 deg C) as they get app, 0.9V instead of 0.7V as they are supposed to. Cool them as much as you can!!!

 The Problem is due to the VRMs not working according to spec but KNC will be able to fix it with new firmware (we did our own patch for our miners yesterday).

 Easiest fix to cool properly is to provide cool air, belo 20 deg C is a good idea. Open case + big fan will also work.

 PS, this does not apply to 8 VRM asic boards. No worries here.



again found this on knc forums


hope if helps

Searing

[warhawk187]

W. T. F.?



This is running 0.93...umm help!?

[Gyrsur]

My "Order #XXX Paid (Payed)" changed to "Order #XXX In progress (Payed)"?

Is this the sign to get included in the production line?

yes, and now wait one week or more for shipping number

enough time to buy a 1500+ W PSU! HAHA just joking!