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Author Topic: Swedish ASIC miner company kncminer.com  (Read 3031211 times)
lightfoot
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December 21, 2017, 10:35:25 PM
 #42761

10) when/if eventually a plug on the cube does fry and melt plastic..lightfoot hates that I say this..but have had no issues on the 1/2 dozen or so units I run using
     just the 15 AWG bare plug slide into the pins ..make sure the tab is up...now this MAY be because it is 15awg wire ask lightfoot..that I have no issues..
so yeah, amazing they still work....but jeez.. quite the chore!
Big warning here: If you ever plug the cube in so that the bottom three pins on the PCIe plug go into the top three pins on the socket, or put it in upside-down, the following will happen instantly:

1) The cube will be damaged, all drivers blown.
2) The ribbon cable will burn.
3) The controller will be damaged, needs new FPGA and power chip.
4) Every other cube on that controller will be permanently destroyed with no ability to repair.

Doing the above puts +12 on the ground plane which destroys the hashing chips pretty much instantly. I have seen this happen several times with people, whole miner is gone.

So if you're running on burned connectors always check every plug before powering on. One mistake does it.
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December 22, 2017, 07:59:44 AM
 #42762

10) when/if eventually a plug on the cube does fry and melt plastic..lightfoot hates that I say this..but have had no issues on the 1/2 dozen or so units I run using
     just the 15 AWG bare plug slide into the pins ..make sure the tab is up...now this MAY be because it is 15awg wire ask lightfoot..that I have no issues..
so yeah, amazing they still work....but jeez.. quite the chore!
Big warning here: If you ever plug the cube in so that the bottom three pins on the PCIe plug go into the top three pins on the socket, or put it in upside-down, the following will happen instantly:

1) The cube will be damaged, all drivers blown.
2) The ribbon cable will burn.
3) The controller will be damaged, needs new FPGA and power chip.
4) Every other cube on that controller will be permanently destroyed with no ability to repair.

Doing the above puts +12 on the ground plane which destroys the hashing chips pretty much instantly. I have seen this happen several times with people, whole miner is gone.

So if you're running on burned connectors always check every plug before powering on. One mistake does it.

yep..nice little tab up on my modified 15 awg wires....but hey it has to be better then replacing KNC Y adapters every 6 months as they blew (really, it was that often

I kid they not) no blown y connectors even on the ones I use to keep the now bare pin cubes working

again 15awg wire seems to help along with no crummy Y adapter in the loop to burn out either


but yeah, you have to check this....I suppose I could put some paint on the tab just to be double sure in the future




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lightfoot
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December 24, 2017, 03:11:00 PM
 #42763

yep..nice little tab up on my modified 15 awg wires....but hey it has to be better then replacing KNC Y adapters every 6 months as they blew (really, it was that often
KNC used cheap PCIe sockets on their boards. Switching to all nickel plugs makes a fairly nice difference on the burn rate.

Typical build a thousand dollar cube and save a dime by using a cheap component.....
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December 25, 2017, 12:38:08 PM
 #42764

yep..nice little tab up on my modified 15 awg wires....but hey it has to be better then replacing KNC Y adapters every 6 months as they blew (really, it was that often
KNC used cheap PCIe sockets on their boards. Switching to all nickel plugs makes a fairly nice difference on the burn rate.

Typical build a thousand dollar cube and save a dime by using a cheap component.....


Yeah, well paying you to solder the proper plugs back in ...or just using the bare pin with the knc Y adapter hack..I went with the hack (then again LTC for all 6 of them

until my most recent one this month was probably 4.15 per LTC ..so it made sense then I guess the above ugly hacks previous to the LTC price pumps)

so anyway..in my case ..likely with the stable platinum server PSU's dual 1260 each or 2520 or so watts if I remember right at 96% eff) along with

the 15 AWG wire and heavy duty plug on the PSU end you feel prudent....I'm just gonna continue with the bare pin mods...but the 15 AWG wire over kill is likely the

part that has allowed them not to go toaster city...in my case anyway...again I think I have at least 6 with this mod..have a buddy with a lot more than that...at

his data hall...none have fried again after this mod and the full Maxumark brackets/gen tarkin firmware/15 AWG wire/better fan/ heatsinks on dc/dc's etc etc etc)

so anyway, what I do (or did) I suppose if anyone out there is reading this with a plug fried...if you got to send it in to lightfoot get a price on the plug replace

on the cube...but again mine burnt..pin hack...and worked after...so no need to send them in....but it is of course as lightfoot says 'at your own risk'



KNC devices being evil and all...MUST DIE SOMEDAY....being purely evil and all thus Lightfoot acts as the devil's advocate and keeps FIXING THEM

and of course...then they don't die..rinse/wash/repeat...as lightfoot yells 'live my creations' on each cube revived.....(evil lair there, let me tell you!)

so I got to draw the line someplace to allow them to brick themselves or we are all lost.....(frigging skynet...the beginning of skynet, I just know it.....)


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smoothrunnings
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January 01, 2018, 12:24:52 AM
 #42765

Can too much cooling affect the cores on the Neptune miner?

It's winter here in Canada now, its about -20 outside. I have my basement window open in the room where my Neptune is running, a few of my cores have stopped working since it got colder.

Here is my miner status RIGHT now.


Here is what Advanced core info shows Right now.

lightfoot
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January 01, 2018, 01:46:51 AM
 #42766

I wonder if you could boost up the voltage, I mean hell they aren't overheating :-)

And how are you keeping from melting the plugs. 220w/cube is heavy load with Titans, you're pulling 300 (it's more than 300)

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January 01, 2018, 04:05:14 PM
 #42767

I wonder if you could boost up the voltage, I mean hell they aren't overheating :-)

And how are you keeping from melting the plugs. 220w/cube is heavy load with Titans, you're pulling 300 (it's more than 300)



I bought special cables off here. They are thicker gauge wires.
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January 02, 2018, 03:36:06 PM
 #42768

Those are special cables all right.... Sandoz Laboratories probably makes those cables :-) Do they go all the way to a modular power supply?

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January 02, 2018, 05:10:42 PM
 #42769

Those are special cables all right.... Sandoz Laboratories probably makes those cables :-) Do they go all the way to a modular power supply?



The ones I have do, they are thicker wire and better plugs at both ends, you just specify what PSU when ordering, I got mine from Shakmods as soon as it became apparent how much power the titan (or was it my neptune can't remember) was putting through a single lead.

Touch wood, not had any of mine burn and been running at 325mhz since day 1, maybe just lucky or the fact it's an air conditioned room, but certainly glad I got them.

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January 02, 2018, 06:09:32 PM
 #42770

Mine I think are Shakmods too. I just remember the guy who was selling them was selling them in metric and I accidentally bought the shorter ones which work.
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January 02, 2018, 06:11:57 PM
 #42771

Those are special cables all right.... Sandoz Laboratories probably makes those cables :-) Do they go all the way to a modular power supply?



Uhmm all I can tell you is I had to tell the guy where I bought mine from which PSU they were plugging into as the modular connectors to the PSU aren't always the same.

I use two EVA SuperNova 1500's at home.
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January 03, 2018, 10:48:07 PM
 #42772

Hello,

I know it's not worth but want to know how too program the beagle one black that is used on a KnCminer Saturn.

Can someone explain how I can update bfg/cgminer to the latest version? I tryd opgeh update and upgrade but nothing happens.

I upgrade the KnCminer firmware too 1.0.1 custom but this used also cgminer 3.8.0....

I hope someone can help me.
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January 03, 2018, 11:26:52 PM
 #42773

Hello,

I know it's not worth but want to know how too program the beagle one black that is used on a KnCminer Saturn.

Can someone explain how I can update bfg/cgminer to the latest version? I tryd opgeh update and upgrade but nothing happens.

I upgrade the KnCminer firmware too 1.0.1 custom but this used also cgminer 3.8.0....

I hope someone can help me.
Hate to say it, but why? The Saturn will not benefit from more modern code in any way.

You could stick an 8-16gb SD card into it and run the latest BBB software or run the controller with a Neptune or Titan, but there's not much to do with Saturn code at this point.
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