Swedish ASIC miner company kncminer.com

[Searing]

Yestarday we  have removed the Titan chip CAP Today will test it using chip water cooling, to check if the thermal grease was a problem..

ah.....big brass ones you have

[Unacceptable]

Yestarday we  have removed the Titan chip CAP Today will test it using chip water cooling, to check if the thermal grease was a problem..

ah.....big brass ones you have

I heard it like this,for some reason 

[zybc]

Just looked once again at logs and figured out!!! (It's like a glowing lamp nead my head )

Try to folow me:

1. I have a problem with ASIC4 connector. In web it does not show temp! And cube not working.
2. The voltage on one pin ov ASIC4 connector is differrent from others connectors.
3. The 1.04 ver log show continious  Die 3-2 restarted
                                                  Restarting bfgminer
                                                  Die 3-0 came UP
4. Ver 2.00 show I2C error

5. What a stupid guy was I!!!! THIS ASIC4 Connector F#CKs BRAIN to the system board!!! That's why nothing is working!!!!

[LongAndShort]

Just looked once again at logs and figured out!!! (It's like a glowing lamp nead my head )

Try to folow me:

1. I have a problem with ASIC4 connector. In web it does not show temp! And cube not working.
2. The voltage on one pin ov ASIC4 connector is differrent from others connectors.
3. The 1.04 ver log show continious  Die 3-2 restarted
                                                  Restarting bfgminer
                                                  Die 3-0 came UP
4. Ver 2.00 show I2C error

5. What a stupid guy was I!!!! THIS ASIC4 Connector F#CKs BRAIN to the system board!!! That's why nothing is working!!!!

You had the cable around the wrong way?

[zybc]

Just looked once again at logs and figured out!!! (It's like a glowing lamp nead my head )

Try to folow me:

1. I have a problem with ASIC4 connector. In web it does not show temp! And cube not working.
2. The voltage on one pin ov ASIC4 connector is differrent from others connectors.
3. The 1.04 ver log show continious  Die 3-2 restarted
                                                  Restarting bfgminer
                                                  Die 3-0 came UP
4. Ver 2.00 show I2C error

5. What a stupid guy was I!!!! THIS ASIC4 Connector F#CKs BRAIN to the system board!!! That's why nothing is working!!!!

You had the cable around the wrong way?

I am not sure. But if I plug one cube to bad port and one cube to any other port and set 50MHz at Cube on bad port system works continiously without restarts!!!
I need to make some plug for bad port to imitate Cube!!!
Need some advice on that please  

Here is the official answer on my issue

Hi,

It is as I stated in my previous email to you: "The only reason a controller board would perform in that way that you have described is if something is not connected correctly, or is causing an interference with the communication between the controller and cubes."

It would appear that there is a short on the controller board which is causing the issue, it could be some debris or something on some point of the circuit which is causing the short, or the main I/O board has failed in some point.

The only way to resolve this would be to change the main I/O board completely.

Med vänlig hälsning | Best regards

Now system is good working if Cube with no power is plugged to bad port. I need some cube imitator to create

[vegasguy]

The v.99a firmware is polished and clean. We are looking for ideas for future software mods. Im continuing my research and video on the hardware end. I should have that fancy Hakko FR-300 desodering tool in my hand tomorrow, and THAT is when the real fun begins. SO if you guys have any ideas or anything you want added , then now would be a good time to open a discussion about what you want added to the future software mod.

Vegas

[GenTarkin]

Im also looking for some wall watts vs webgui watts stats too if anyone has them =)
So I can more accurately estimate wall watts stat in webgui.

[LongAndShort]

Tail log and current pool/s being hashed on.

[vegasguy]

I dont own a Kill A Watt , but if no one steps up to the plate, then Ill order one. Im sure Steve , MUST have one. LOL

Vegas

[vegasguy]

We are setup to receive only LTC and BTC , but I can add other payment options if enough people want them. Here are the other coins I can add:

[TXSteve]

I dont own a Kill A Watt , but if no one steps up to the plate, then Ill order one. Im sure Steve , MUST have one. LOL

Vegas

lol, actually I do have one ... what was it you needed?  Total watts used at the wall?

I'll see if I can get some stats out to you

[Mattzees]

Guys I need your help. Ive looked everywhere for the correct location of the die numbers, and I just cant seem to find them. I need this information badly, as I want to test some new techniques for hardware die repair. If anyone has this information or can find it , I would appreciate it. If you know which die is which, Please use the pic below and edit it and post. Please dont guess. Thanks.

Vegas




 

If you Google pics of the old Neptune(?) boards, someone mapped the cores to the VMs and made a picture of it.  If the boards are the same (and I think they are), the mappings should be the same.

[Mattzees]

I usually hang out on LiteCoinTalk, so I'm late to the game, but here it goes...

Questions:

1) Is it worthwhile to replace the cheap VRMs that KNC installed with an upgraded version? 
We can buy them here:
http://avnetexpress.avnet.com/store/em/EMController?action=products&catalogId=500201&storeId=500201&N=0&defaultCurrency=USD&langId=-1&slnk=e&term=BMR4641008%252F001&mfr=ERC&CMP=KNC-Octopart_VSE&c=USD&l=-1

But they aren't cheap, and the minimum order quantity is 65.  Each Titan cube would require 8 VRMs at $30 each.  Group buy?


2) Has anyone successfully refloated any of the components on a Titan cube circuit board?  I have tried to do this, and the solder KNC used has an unusual resin (or epoxy) coating on it.  Nothing would stick to it, and it got powdery when it melted.  Either they used really cheap solder, or solder that was never meant to be fixed?


3) The controller boards are the weakest link.  They eventually need to be eliminated, and the cubes need to be run directly via USB-to-serial. 
   3a) Have we tried offering a bounty to anyone who can provide or reverse-engineer the FPGA code?
   3b) I have cubes that will run reliably on all four dies when they are alone on a controller board, but as more cubes are added, dies begin to fail.  This is not a power issue.  I believe it is the RasPi becoming overloaded and failing to properly handle communication with the controller.  Has anyone been able to run a more powerful RasPi, like a RasPi 2 or some variant?

[vegasguy]

I usually hang out on LiteCoinTalk, so I'm late to the game, but here it goes...

Questions:

1) Is it worthwhile to replace the cheap VRMs that KNC installed with an upgraded version?  
We can buy them here:
http://avnetexpress.avnet.com/store/em/EMController?action=products&catalogId=500201&storeId=500201&N=0&defaultCurrency=USD&langId=-1&slnk=e&term=BMR4641008%252F001&mfr=ERC&CMP=KNC-Octopart_VSE&c=USD&l=-1

But they aren't cheap, and the minimum order quantity is 65.  Each Titan cube would require 8 VRMs at $30 each.  Group buy?


2) Has anyone successfully refloated any of the components on a Titan cube circuit board?  I have tried to do this, and the solder KNC used has an unusual resin (or epoxy) coating on it.  Nothing would stick to it, and it got powdery when it melted.  Either they used really cheap solder, or solder that was never meant to be fixed?


3) The controller boards are the weakest link.  They eventually need to be eliminated, and the cubes need to be run directly via USB-to-serial.  
   3a) Have we tried offering a bounty to anyone who can provide or reverse-engineer the FPGA code?
   3b) I have cubes that will run reliably on all four dies when they are alone on a controller board, but as more cubes are added, dies begin to fail.  This is not a power issue.  I believe it is the RasPi becoming overloaded and failing to properly handle communication with the controller.  Has anyone been able to run a more powerful RasPi, like a RasPi 2 or some variant?

I will be working tomorrow to see if the vrms can be removed and replaced. I bought a very powerful professional grade desoldering tool just for this. Im working on a solution to reball the dead dies. I personally have never had an issue with added cubes to a controller and the pi becoming overloaded and killing dies. Im not sure how this would kill the dies. I have 6 controllers and in my personal experience have never had a controller fail. I dont see the benefit of adding RasPi 2 , even if it could be added.

Vegas

[mindtrip]

I usually hang out on LiteCoinTalk, so I'm late to the game, but here it goes...

Questions:

1) Is it worthwhile to replace the cheap VRMs that KNC installed with an upgraded version?  
We can buy them here:
http://avnetexpress.avnet.com/store/em/EMController?action=products&catalogId=500201&storeId=500201&N=0&defaultCurrency=USD&langId=-1&slnk=e&term=BMR4641008%252F001&mfr=ERC&CMP=KNC-Octopart_VSE&c=USD&l=-1

But they aren't cheap, and the minimum order quantity is 65.  Each Titan cube would require 8 VRMs at $30 each.  Group buy?


2) Has anyone successfully refloated any of the components on a Titan cube circuit board?  I have tried to do this, and the solder KNC used has an unusual resin (or epoxy) coating on it.  Nothing would stick to it, and it got powdery when it melted.  Either they used really cheap solder, or solder that was never meant to be fixed?


3) The controller boards are the weakest link.  They eventually need to be eliminated, and the cubes need to be run directly via USB-to-serial.  
   3a) Have we tried offering a bounty to anyone who can provide or reverse-engineer the FPGA code?
   3b) I have cubes that will run reliably on all four dies when they are alone on a controller board, but as more cubes are added, dies begin to fail.  This is not a power issue.  I believe it is the RasPi becoming overloaded and failing to properly handle communication with the controller.  Has anyone been able to run a more powerful RasPi, like a RasPi 2 or some variant?

I will be working tomorrow to see if the vrms can be removed and replaced. I bought a very powerful professional grade desoldering tool just for this. Im working on a solution to reball the dead dies. I personally have never had an issue with added cubes to a controller and the pi becoming overloaded and killing dies. Im not sure how this would kill the dies. I have 6 controllers and in my personal experience have never had a controller fail. I dont see the benefit of adding RasPi 2 , even if it could be added.

Vegas

Ditto  have 2 titans running 6 cubes hashing over 500MH for long periods now using the custom GenTarkin modified FW and they run great all the time never crash or need rebooting I have had some SD cards go corrupt on me so just have some good quality ones do a fresh image and use his code much more stable then stock FW

[TXSteve]

I usually hang out on LiteCoinTalk, so I'm late to the game, but here it goes...

Questions:

2) Has anyone successfully refloated any of the components on a Titan cube circuit board?  I have tried to do this, and the solder KNC used has an unusual resin (or epoxy) coating on it.  Nothing would stick to it, and it got powdery when it melted.  Either they used really cheap solder, or solder that was never meant to be fixed?

They used some nasty no lead solder, takes ALOT of heat to melt it -- I had to use hot air and a soldering iron to replace the pcie connector, basically cut the connector off then then pull the pins out with tweezers, so takes 3 hands for  hot air, soldering iron, tweezers   or  a rework station

[vegasguy]

Steve im getting that Hakko FR-300 later today. I have to replace a capacitor and a pci-e port. Ill let you know how it goes. I also want to try to remove the vrms with it.

Vegas

[TXSteve]

Steve im getting that Hakko FR-300 later today. I have to replace a capacitor and a pci-e port. Ill let you know how it goes. I also want to try to remove the vrms with it.

Vegas

cool, that hakko looks like fun ... kinda curious if replacing the vrm will bring back some dead dies

[Romanko]

wanted to download neptune soft for reinstall but looks like the site http://www.kncminer.com/ is down as well as the support files

[frenchy]

Hello guys!Yes i have a idea for your video Vegas!!!should it be possible to add subtitles please?Because i have so much difficulty to understand.it will be more easy for me to understand your video if you put subtitles on it....